Consulta: subjectFacets:"Habitat"
Registros recuperados: 127
Data/hora: 01/06/2024 11:34:56

Nuevos registros y distribución del ocelote (Leopardus pardalis) en el noreste de México
Provedor de dados: 32
Autores: Martínez Calderas, Jesús Manuel.
Con el objetivo de delimitar la distribución geográfica del ocelote en el noreste de México, se  ubicaron nuevos registros así como datos de ausencia probable. El estudio se realizó de mayo del 2006 a  mayo del 2009 en la Zona Media y Huasteca de San Luis Potosí y en la Planicie Costera de Tamaulipas.  Los registros se situaron mediante recorridos de campo, entrevistas y sensores fotográficos. Se aplicó un  análisis discriminante y regresión logística a nueve variables (vegetación, cobertura, altitud, pendiente,  distancia a cuerpo de agua, grado de impacto, distancia a caminos, distancia a poblados y densidad de  habitantes a 16 km2) del hábitat del sitio donde se ubicaron los registros, obteniéndose las que explican  estadísticamente la presencia de...
Tipo: Tesis
Palavras-chave: Ocelote; Nuevos registros; Distribución potencial; Hábitat; Maestría; Ganadería; Ocelot; New records; Potential distribution; Habitat.
Ano: 2009
URL: http://hdl.handle.net/10521/1222

Nuevos registros y distribución del ocelote (Leopardus pardalis) en el noreste de México
Provedor de dados: 32
Autores: Martínez Calderas, Jesús Manuel.
Con el objetivo de delimitar la distribución geográfica del ocelote en el noreste de México, se  ubicaron nuevos registros así como datos de ausencia probable. El estudio se realizó de mayo del 2006 a  mayo del 2009 en la Zona Media y Huasteca de San Luis Potosí y en la Planicie Costera de Tamaulipas.  Los registros se situaron mediante recorridos de campo, entrevistas y sensores fotográficos. Se aplicó un  análisis discriminante y regresión logística a nueve variables (vegetación, cobertura, altitud, pendiente,  distancia a cuerpo de agua, grado de impacto, distancia a caminos, distancia a poblados y densidad de  habitantes a 16 km2) del hábitat del sitio donde se ubicaron los registros, obteniéndose las que explican  estadísticamente la presencia de...
Palavras-chave: Ocelote; Nuevos registros; Distribución potencial; Hábitat ocelot; New records; Potential distribution; Habitat.
Ano: 2012
URL: http://hdl.handle.net/10521/915

Distribución geográfica y ecológica del jaguarundi (Puma yagouaroundi) en el estado de San Luis Potosí, México.
Provedor de dados: 32
Autores: Coronado Quibrera, Wendy Paola.
Puma yagouaroundi es una especie no estudiada en San Luis Potosí. En este estudio se obtuvieron nuevos registros, se describió el hábitat y se crearon las bases para  un modelo de distribución potencial. El muestreo se llevó a cabo de octubre 2008- mayo 2009 mediante entrevistas en 96 comunidades rurales de la Zona Media, Centro y Huasteca. La información se agrupó en tres clases usando un criterio analítico de veracidad. Los lugares donde hubo avistamientos se visitaron y se tomaron los datos del hábitat. Se obtuvieron 58 registros de presencia y 34 de ausencia. Los pastizales (24%), zonas de cultivo (21%), y selvas (19%) fueron los tipos de vegetación más frecuentes en los sitios de avistamiento. Las selvas (46%) y pastizales (22%) como vegetación...
Palavras-chave: Distribución; Hábitat; Presencia-ausencia; Cobertura de acecho; SIG; PAJ; Distribution; Habitat; Presence-absence; Ambush cover; GIS; AHP; Maestría; Ganadería.
Ano: 2011
URL: http://hdl.handle.net/10521/418

Identificación y caracterización de corredores y conectividad para el jaguar (Panthera onca) entre las sierras del Abra-Tanchipa y Cerro Alto, San Luis Potosí.
Provedor de dados: 32
Autores: Flores Barrera, César Iván.
El jaguar es el felino más grande del continente Americano, por lo que tiene demandas alimenticias de grandes presas y hábitats extensos, esto propicia conflictos con los humanos debido a la fragmentación de su hábitat. En México se encuentra enlistado como en peligro de extinción en la NOM-059-SEMARNAT-2010. Por lo que es importante determinar si hay parches de hábitat que sean utilizados por el jaguar como corredores dentro de la Sierra Madre Oriental; específicamente, en la región que hay entre la Sierra del Abra-Tanchipa y la Sierra de Cerro Alto. El objetivo de este estudio fue determinar la existencia de un corredor para jaguar (Panthera onca) entre las Sierras del Abra-Tanchipa y Cerro Alto, del municipio de Ciudad Valles, San Luis Potosí. El...
Palavras-chave: Jaguar; Corredores; Conectividad; Hábitat; Fragmentación; Corridors; Connectivity; Habitat; Fragmentation; Ganadería; Maestría.
Ano: 2014
URL: http://hdl.handle.net/10521/2385

Nuevos registros y distribución del ocelote (Leopardus pardalis) en el noreste de México
Provedor de dados: 32
Autores: Martínez Calderas, Jesús Manuel.
Con el objetivo de delimitar la distribución geográfica del ocelote en el noreste de México, se  ubicaron nuevos registros así como datos de ausencia probable. El estudio se realizó de mayo del 2006 a  mayo del 2009 en la Zona Media y Huasteca de San Luis Potosí y en la Planicie Costera de Tamaulipas.  Los registros se situaron mediante recorridos de campo, entrevistas y sensores fotográficos. Se aplicó un  análisis discriminante y regresión logística a nueve variables (vegetación, cobertura, altitud, pendiente,  distancia a cuerpo de agua, grado de impacto, distancia a caminos, distancia a poblados y densidad de  habitantes a 16 km2) del hábitat del sitio donde se ubicaron los registros, obteniéndose las que explican  estadísticamente la presencia de...
Palavras-chave: Ocelote; Nuevos registros; Distribución potencial; Hábitat ocelot; New records; Potential distribution; Habitat.
Ano: 2012
URL: http://hdl.handle.net/10521/898

Distribución geográfica y ecológica del jaguarundi (Puma yagouaroundi) en el estado de San Luis Potosí, México.
Provedor de dados: 32
Autores: Coronado Quibrera, Wendy Paola.
Puma yagouaroundi es una especie no estudiada en San Luis Potosí. En este estudio se obtuvieron nuevos registros, se describió el hábitat y se crearon las bases para  un modelo de distribución potencial. El muestreo se llevó a cabo de octubre 2008- mayo 2009 mediante entrevistas en 96 comunidades rurales de la Zona Media, Centro y Huasteca. La información se agrupó en tres clases usando un criterio analítico de veracidad. Los lugares donde hubo avistamientos se visitaron y se tomaron los datos del hábitat. Se obtuvieron 58 registros de presencia y 34 de ausencia. Los pastizales (24%), zonas de cultivo (21%), y selvas (19%) fueron los tipos de vegetación más frecuentes en los sitios de avistamiento. Las selvas (46%) y pastizales (22%) como vegetación...
Palavras-chave: Distribución; Hábitat; Presencia-ausencia; Cobertura de acecho; SIG; PAJ; Distribution; Habitat; Presence-absence; Ambush cover; GIS; AHP; Maestría; Ganadería.
Ano: 2011
URL: http://hdl.handle.net/10521/418

Cumulative Effects of Coastal Habitat Alterations on Fishery Resources: toward Prediction at Regional Scales
Provedor de dados: 7
Autores: Jordan, Stephen J; United States Environmental Protection Agency, Gulf Ecology Division; jordan.steve@epa.gov; Smith, Lisa M; United States Environmental Protection Agency, Gulf Ecology Division; smith.lisam@epa.gov; Nestlerode, Janet A; United States Environmental Protection Agency, Gulf Ecology Division; nestlerode.janet@epa.gov.
Coastal habitat alterations such as the loss of submersed aquatic vegetation (SAV) and hardening of shorelines could have cumulative effects on valuable fishery resources. To investigate this effect, we developed a multiscale modeling framework for blue crab (Callinectes sapidus) in the northern Gulf of Mexico. Areal coverage of shoreline land cover and SAV for Mobile Bay, Alabama, were combined with information from small-scale biological studies and long-term, large-scale commercial fishery data to model the potential effects of marginal habitat losses on the blue crab fishery. We applied stochastic variation in annual recruitment to the fishery to estimate probabilities for sustainable harvests under scenarios of habitat loss. The simulations suggested...
Tipo: Peer-Reviewed Reports
Palavras-chave: Blue crab; Callinectes sapidus; Fishery; Gulf of Mexico; Habitat; Population model.
Ano: 2009

Modeling the Geography of Migratory Pathways and Stopover Habitats for Neotropical Migratory Birds
Provedor de dados: 7
Autores: Tankersley, Jr., Roger; Tennessee Valley Authority; rdtankersley@tva.gov; Orvis, Kenneth; ; orvis@utk.edu.
Intact migratory routes are critical for the stability of forest-dwelling, neotropical, migratory bird populations, and mortality along migratory pathways may be significant. Yet we know almost nothing about the geography of available stopovers or the possible migratory pathways that connect optimal stopovers. We undertake a spatial analysis of stopover habitat availability and then model potential migratory pathways between optimal stopovers in the eastern United States. Using models of fixed orientation and fixed nightly flight distance between stopovers during spring migration, we explore whether a simple endogenous migratory program is sufficient to ensure successful migration across the modern landscape.  Our model runs suggest that the modern...
Tipo: Peer-Reviewed Reports
Palavras-chave: Conservation; Forest fragmentation; Habitat; Migration; Modeling; Neotropical migratory birds; Stopover ecology.
Ano: 2003

Merits and Limits of Ecosystem Protection for Conserving Wild Salmon in a Northern Coastal British Columbia River
Provedor de dados: 7
Autores: Hill, Aaron C.; Watershed Watch Salmon Society; Flathead Lake Biological Station, University of Montana; hillfish@telus.net; Bansak, Thomas S.; Flathead Lake Biological Station, University of Montana; tom.bansak@umontana.edu; Ellis, Bonnie K.; Flathead Lake Biological Station, University of Montana; bonnie.ellis@umontana.edu; Stanford, Jack A.; Flathead Lake Biological Station, University of Montana; jack.stanford@umontana.edu.
Tipo: Peer-Reviewed Reports
Palavras-chave: Conservation; Ecology; Fisheries management; Habitat; Kitlope River; Pacific salmon; Resilience; Salmon stronghold.
Ano: 2010

Habitat Scale Mapping of Fisheries Ecosystem Service Values in Estuaries
Provedor de dados: 7
Autores: O&amp;#8217;Higgins, Timothy G.; Scottish Association for Marine Sciences; tim.ohiggins@gmail.com; Ferraro, Steven P.; U.S. Environmental Protection Agency;; Dantin, Darrin D.; U.S. Environmental Protection Agency;; Jordan, Steve J.; U.S. Environmental Protection Agency;; Chintala, Marnita M; U.S. Environmental Protection Agency;.
Little is known about the variability of ecosystem service values at spatial scales most relevant to local decision makers. Competing definitions of ecosystem services, the paucity of ecological and economic information, and the lack of standardization in methodology are major obstacles to applying the ecosystem-services approach at the estuary scale. We present a standardized method that combines habitat maps and habitat&amp;#8211;faunal associations to estimate ecosystem service values for recreational and commercial fisheries in estuaries. Three case studies in estuaries on the U.S. west coast (Yaquina Bay, Oregon), east coast (Lagoon Pond, Massachusetts), and the Gulf of Mexico (Weeks Bay, Alabama) are presented to illustrate our method&amp;#8217;s...
Tipo: Peer-Reviewed Reports
Palavras-chave: Ecosystem services; Estuary; Habitat; Mapping; Valuation.
Ano: 2010

Shopping Centers as Panther Habitat: Inferring Animal Locations from Models
Provedor de dados: 7
Autores: Maehr, David S; University of Kentucky; dmaehr@uky.edu; Larkin, Jeffery L; ; jllark0@uky.edu; Cox, John J; ; coyote1701@yahoo.com.
A recent model of Florida panther (Puma concolor coryi) habitat erred in arbitrarily creating buffers around radio locations collected during daylight hours on the assumption that study animals were only at rest during these times. The buffers generated by this method likely cause an overestimation of the amounts and kinds of habitats that are used by the panther. This, and other errors, could lead to the impression that unfragmented forest cover is unimportant to panther conservation, and could encourage inaccurate characterizations of panther habitat. Previous 24-hour monitoring of activity and activity readings made during routine telemetry flights indicate that high levels of activity occur in the early morning hours. Literature on the behavior of the...
Tipo: Peer-Reviewed Reports
Palavras-chave: Activity; Florida panther; Habitat; Telemetry data.
Ano: 2004

Spatial-temporal patterns of functional feeding groups in mountain streams of Córdoba, Argentina
Provedor de dados: 67
Autores: Príncipe,Romina E; Gualdoni,Cristina M; Oberto,Ana M; Raffaini,Graciela B; Corigliano,María C.
Trophic structure of benthic communities is influenced by the availability of food resources which indeed may be conditioned by stream size, shading and substrate. This study aims to analyze the distribution of macroinvertebrate Functional Feeding Groups in different habitats of mountain streams (Córdoba, Argentina) and to assess the environmental variables conditioning this distribution at the habitat level. Four streams were sampled in two hydrological periods (high and low discharge) and three benthic samples were taken in riffles and runs of coarse and fine substrate. Gathering collectors were dominant in most of the habitats, streams and periods except in riffles during the low water period in which filtering collectors dominated. At the habitat...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic macroinvertebrates; Benthos; Habitat; Functional organization; Lotic ecosystem.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2010000300005

Survey of Orchidaceae species of Serra das Cabeças, in Parque Estadual da Serra do Brigadeiro, Araponga-MG, Brazil
Provedor de dados: 75
Autores: Lana,Luísa G; Escobar,Thais F; Godinho,Elis MM; Peluzio,Luciano E.
ABSTRACT Ecology of orchid species was studied, surveyed and characterized on Serra das Cabeças, a subunit of Parque Estadual da Serra do Brigadeiro (PESB), Araponga-MG, Brazil. Data were obtained through monthly visits on all trails of the area, from 2004 to 2014 covering different types of vegetation, collecting some species and identifying them. We observed characteristics such as type of vegetation, habitat where each species was found, intensity of luminosity, altitude and position of plants in relation to watercourses. Obtained results allowed to conclude: 80 species were identified, of which 45 had not been reported for PESB; five for the state of Minas Gerais, and four for Brazilian flora. Concerning habitat, 57.50% are epiphytic, 1.25%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Orchids; Habitat; Environmental characteristics; Ornamental plants.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200156

Типы местообитаний в морской пелагиали (на примере Черного моря)
Provedor de dados: 13
Autores: Заика, В. Е.
Границы местообитаний пелагических сообществ и популяций раньше считали совпадающими с границами водных масс. Позже описания структуры местообитаний становились все более детальными. При этом изучаемые типы сообществ становились все более узкими таксономически. В результате биотопическая структура пелагиали сейчас представляется более сложной, чем ранее. Это хорошо видно на примере пелагиали Черного моря, особенно в период сильной летней стратификации.
Tipo: Journal Contribution
Palavras-chave: Местообитание; Биотоп; Пелагиаль; Черное море; Habitat; Biotope; Pelagic waters; Black Sea Habitat Biotopes Biotopes http://aims.fao.org/aos/agrovoc/c_932.
Ano: 2004
URL: http://repository.ibss.org.ua/dspace/handle/99011/91

Dosilia (Porifera, Demospongiae) redefined
Provedor de dados: 76
Autores: Cândido,Jairo Luís; Volkmer-Ribeiro,Cecília; Fürstenau-Oliveira,Karina.
Dosilia plumosa (Carter, 1849), type species of the genus, and D. brouni (Kirkpatrick, 1906), with distribution respectively in the Oriental and Ethiopic regions, are revised based on a SEM analysis of spicules, gemmules and skeletal structure. The lectotype here designated for D. plumosa is illustrated as well as the holotype by monotypy determined for D. brouni. Dosilia palmeri (Potts, 1885) and D. radiospiculata (Mills, 1888) distributed in the Nearctic and Neotropical regions and D. pydanieli Volkmer-Ribeiro, 1992, found in the Neotropical region, are revised based on a SEM analysis of spicules, gemules and skeletal structure. The holotype by monotypy is determined for D. radiospiculata. Heteromeyenia plumosa Weltner,1895 is synonymyzed with D....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Continental sponges; Taxonomy; Distribution; Habitat.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000400017

Vocalização de anúncio e ampliação da distribuição de Pristimantis crepitans (Bokermann) (Amphibia, Anura, Strabomantidae)
Provedor de dados: 76
Autores: Strüssmann,Christine; Pansonato,André; Soares,Davi.
Espécimes de Pristimantis crepitans (Bokermann, 1965) foram obtidos em áreas de afloramentos rochosos situadas na borda sudoeste do Cerrado e na borda oeste do Pantanal, próximo à fronteira entre o Brasil e a Bolívia. Indivíduos foram coletados e gravados na localidade-tipo e em outros quatro municípios, nos estados de Mato Grosso e Mato Grosso do Sul. Além da ampliação da área de ocorrência e de dados morfométricos adicionais aos da série-tipo, apresentamos pela primeira vez na literatura parâmetros da vocalização topotípica de P. crepitans, bem como fotografias de espécimes em vida e de alguns dos hábitats ocupados pelos mesmos.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canto de anúncio; Distribuição geográfica; Habitat; Afloramentos rochosos.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000300003

Aves da fazenda Nhumirim, Pantanal da Nhecolândia, MS.
Provedor de dados: 14
Autores: NUNES, A. P.; TOMAS, W. T.; TICIANEL, F. A. T.
Neste trabalho é apresentada uma caracterização da comunidade de aves ocorrentes na Estação Experimental da fazenda Nhumirim, contribuindo com o desenvolvimento da Ornitologia na região.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Guildas tróficas.; Habitat; Inventário.; Aves; Pantanal.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/784002

Zoneamento e caracterização de habitats naturais de pimenta longa (Piper hispidinervum) no Acre.
Provedor de dados: 14
Autores: PIMENTEL, F. A.; PEREIRA, J. B. M.; OLIVEIRA, M. N. de.
A proibição de corte do sassafrás (Ocotea pretiosa Mezz), utilizado como principal fonte de safrol natural, por parte do governo brasileiro, em matas primárias da floresta atlântica, na década de 90, levou grandes indústrias químicas processadoras de fragrâncias e inseticidas a buscarem novas fontes alternativas de fenil-éter. A descoberta do safrol na espécie Piper hispidinervum, vulgarmente conhecida por pimenta longa feita por um grupo de pesquisadores do Instituto Nacional de Pesquisa da Amazônia (Inpa), na década de 70, despertou, nos últimos anos, o interesse de indústrias nacionais e estrangeiras para esta nova fonte alternativa. Com base nesses aspectos, a Embrapa-CPAF/AC, em parceria com o Museu Paraense Emílio Goeldi-PA e Overseas Development...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Aceites esenciales; Safrol; Zonificación agrícola.; Pimenta longa; Piper hispidinervum; Óleo essencial; Levantamento populacional; Habitat; Piper longum; Essential oils; Safrole; Agricultural zoning; Hábitats.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/503350

Biologia de Ochlerus sp. (Heteroptera: Pentatomidae), possível vetor da doença "hartrot" em coqueiro.
Provedor de dados: 14
Autores: SOUZA, L. A. de; SILVA, A. de B.; LINS, P. M. P.; MULLER, A. A.
bitstream/item/34336/1/ORIENTAL-BP24.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Pará; Brasil; Plant diseases; Insecto.; Biologia Animal; Coco; Doença de Planta; Inseto.; Habitat; Heteroptera; Amazonia; Coconuts; Zoology.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/377396

Hydrology and vegetation base for classification of macrohabitats of the brazilian Pantanal for policy-making and management.
Provedor de dados: 14
Autores: CUNHA, C. N. da; BERGIER, I.; TOMAS, W. M.; DAMASCENO-JUNIOR, G. A.; SANTOS, S. A.; ASSUNÇÃO, V. A.; SARTORI, A. L. B.; POTT, A.; ARRUDA, E. C. de; GARCIA, A. da S.; NICOLA, R. D.; JUNK, W. J.
Further studies on the ecological conditions in the southern Pantanal revealed the need for expansions of the classification system to include additional macrohabitats specific to the region. Here we present a complete classification system of the macrohabitats of the entire Brazilian Pantanal and discuss its implications for scientific studies and public policies related to sustainable management and protection.
Tipo: Artigo de periódico
Palavras-chave: Ecologia; Habitat; Desenvolvimento Sustentável; Ecossistema; Ecology; Habitats; Sustainable development; Ecosystem management.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1142415

Como o jacaré-do-pantanal, Caiman yacare, resiste a períodos secos na região central do Pantanal.
Provedor de dados: 14
Autores: CAMPOS, Z.; MOURAO, G.
Esta publicação mostra os extremos da capacidade de sobrevivência do jacaré-do-pantanal, frente a ameaça da escassez hídrica na região pantaneira. Desde 1986, os autores desta ublicação estudam a espécie que na época enfrentava sérios problemas de conservação, devido a caça clandestina que durou até 1990. Mas esse período foi de grande oferta de ambientes aquáticos, com grandes enchentes, mantendo a resiliência da população frente a essa ameaça. De lá para cá, a seca tem se intensificado na Planície Pantaneira causando redução dos ambientes aquáticos e levando muitos jacarés a morte, apesar do seu comportamento adaptativo para sobreviver ao estresse hídrico. A publicação é um sinal de alerta, frente as imagens dos jacarés lutando pela vida, nos conduzindo...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Jacaré; Habitat; Comportamento Animal; Pantanal; Caiman yacare; Behavioral resistance.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/812030

Efeito da disponibilidade de alimento no movimento dos jacarés, Pantanal Sul.
Provedor de dados: 14
Autores: CAMPOS, Z.
Por que os animais se movem é uma intrigante questão em ecologia. Pyke (1984) explicou que os movimentos são relacionados com forrageamento, evitar predação, encontrar acasalamento e participar de interação agonísticas. Os crocodilianos podem mover por uma variedade de razões, e decidem quando fazê-lo, provavelmente, por influência de fatores ambientais e de disponibilidade de habitat e alimento (lang 1987). O jacaré-do-Pantanal, Caiman crocodilus yacare, vive em altas densidades em habitats sazonalmente inundados no Pantanal (Coutinho e Campos, 1996, Mourão et al., 2000) e o estoque de alimento na estação da seca pode determinar movimento. Santos et al. (1996) registraram adultos e girinos de Pseudis paradoxa na dieta dos jacarés. Este estudo em longo...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Nhumirim; Yacare; Food.; Alimento; Habitat; Jacaré.; Pantanal.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/810544

Diversidade biológica de Saturniidae (Lepidoptera) em fragmentos naturais e antrópicos de cerrado.
Provedor de dados: 14
Autores: CAMARGO, A. J. A. de; SCHMIDT, K.
bitstream/CPAC-2009/25281/1/p2004_11.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Agricultural structure.; Biodiversidade; Cerrado; Entomologia; Inseto; Habitat; Lepidóptero.; Insecta; Habitats.; Entomology; Biodiversity.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568279

Genipa americana L.
Provedor de dados: 14
Autores: JOKER, D.; SALOMAO, A. N.
bitstream/item/179035/1/genipa-americana-67-int.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Distribuição natural; Uso; Manipulação; Viabilidade; Genipa americana L; Natural distribution; Uses; Botanics; Fruit; Processing; Handling; Armazenamento; Botânica; Colheita; Dormência; Floração; Frutificação; Fruto; Germinação; Habitat; Processamento; Semeadura; Semente; Taxonomia; Dormancy; Flowering; Fruiting; Germination; Habitats; Harvesting; Seeds; Sowing; Storage; Taxonomy; Viability.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1092807

Mapeamento e caracterização de habitats naturais de pimenta longa (Piper hispidinervum) no município de Brasiléia.
Provedor de dados: 14
Autores: PIMENTEL, F. A.; PINHEIRO, P. S. N.
A proibição por parte do governo brasileiro da exploração do sassafrás (Ocotea pretiosa Mezz), utilizado como principal fonte de safrol natural, em matas primárias da floresta atlântica, na década de 90, levou grandes indústrias químicas processadoras de fragrâncias e inseticidas a buscar novas fontes alternativas deste fenil-éter. A descoberta do safrol na espécie Piper hispidinervum, vulgarmente conhecida como pimenta longa, no Estado do Acre, feita por um grupo de pesquisadores do Inpa na década de 70, despertou, nos últimos anos, grande interesse de indústrias nacionais e estrangeiras em relação a esta fonte alternativa. Posteriormente, na década de 90, pesquisadores da Embrapa Acre descobriram que os habitats naturais da espécie estavam somente...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Brasiléia (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Safrol.; Distribución de la poblacion; Aceites essenciales; Pimenta longa; Piper hispidinervum; Óleo essencial; Habitat; Levantamento populacional; Características Agronômicas.; Piper longum; Essential oils; Safrole; Agronomic traits; Population distribution; Hábitats.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/495190

Distância movida e área de uso de crocodilianos em área de usina hidrelétrica, Amazônia.
Provedor de dados: 14
Autores: CAMPOS, Z.; MOURAO, G.
Este estudo apresenta as distâncias movidas relacionadas com o nível de água, e a área de uso em curto prazo para quatro espécies de crocodilianos ocorrentes no Rio Madeira, antes do fechamento da barragem da usina hidrelétrica de Santo Antônio, Rondônia.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Hidrelétrica; Comportamento Animal; Habitat; Hydroelectric power; Crocodiles; Habitat conservation.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137631

Contrôles de la distribution spatiale de l'habitat de reproduction chez les populations de poissons. Approche multi-modèles appliquée à la plie et au merlan de Mer du Nord et à l'anchois du Golfe de Gascogne
Provedor de dados: 5
Autores: Loots, Christophe.
Spawning is a crucial phase of fish life cycle as it ensures the renewal of individuals in the population. The identification of factors that influence its spatial dynamic is therefore a key feature as it will affect the reproduction success of fish population. A multi-model approach has been developed in order to identify factors that control the spatial distribution of spawning adults of plaice and whiting in the North Sea and of anchovy in the Bay of Biscay. Generalised additive models have been used to relate presenceabsence of adults and their abundances to several hypotheses of control external (geographical position and environment) and internal to the population (spatial dependency, size, age structure and memory). Models were then ranked according...
Tipo: Text
Palavras-chave: Anchovy; Whiting; Plaice; Multi model approach; Hypotheses of control; Habitat; Spawning; Anchois; Merlan; Plie; Approche multi modèles; Hypothèses de contrôle; Habitat; Reproduction.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/these-7400.pdf

Within outlying mean indexes: refining the OMI analysis for the realized niche decomposition
Provedor de dados: 5
Autores: Karasiewicz, Stephane; Doledec, Sylvain; Lefebvre, Sebastien.
The ecological niche concept has regained interest under environmental change (e.g., climate change, eutrophication, and habitat destruction), especially to study the impacts on niche shift and conservatism. Here, we propose the within outlying mean indexes (WitOMI), which refine the outlying mean index (OMI) analysis by using its properties in combination with the K-select analysis species marginality decomposition. The purpose is to decompose the ecological niche into subniches associated with the experimental design, i.e., taking into account temporal and/or spatial subsets. WitOMI emphasize the habitat conditions that contribute (1) to the definition of species' niches using all available conditions and, at the same time, (2) to the delineation of...
Tipo: Text
Palavras-chave: Biological constraint; Niche dynamic; Marginality; Community; Spatio-temporal; Subniche; Habitat.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00389/49999/50584.pdf

Underwater video techniques for observing coastal marine biodiversity: A review of sixty years of publications (1952–2012)
Provedor de dados: 5
Autores: Mallet, Delphine; Pelletier, Dominique.
Underwater video techniques are increasingly used in marine ecology studies. Technological progress regarding video cameras, sensors (such as sounders), battery life and information storage make these techniques now accessible to a majority of users. However, diver-based underwater visual censuses, and catch and effort data, remain the most commonly used for observing coastal biodiversity and species. In this paper, we review the underwater video techniques that have been developed since the 1950s to investigate and/or monitor coastal biodiversity. Techniques such as remote underwater video, whether baited or not, diver-operated video and towed video are described, along with corresponding applications in the field. We then analyse the complementary of...
Tipo: Text
Palavras-chave: Underwater video; Monitoring; Coastal biodiversity; Fish; Habitat.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00181/29274/27901.pdf

The Channel habitat atlas for marine resource management (CHARM): an aid for planning and decision-making in an area under strong anthropogenic pressure
Provedor de dados: 5
Autores: Martin, C. S.; Carpentier, Andre; Vaz, Sandrine; Coppin, Franck; Curet, L.; Dauvin, J. -c.; Delavenne, Juliette; Dewarumez, J. -m.; Dupuis, L.; Engelhard, G.; Ernande, Bruno; Foveau, A.; Garcia, C.; Gardel, Laure; Harrop, S.; Just, R.; Koubbi, P.; Lauria, Valentina; Meaden, G. J.; Morin, Jocelyne; Ota, Y.; Rostiaux, Emilie; Smith, R.; Spilmont, N.; Verin, Yves; Villanueva, Ching-maria; Warembourg, Caroline.
The eastern English Channel, the narrow channel of water separating northern France and southeast England is an area of intense human use of the array of resources concentrated into its relative small area. The vulnerability of living resources and their habitats brought together French and British maritime experts within a common project (called CHARM): to create an atlas of marine resource habitats in the eastern English Channel so as to provide planners and decision-makers with the necessary information to help managing the use of its living and non-living resources. This multidisciplinary and richly illustrated atlas provides abundant information on the legal framework and physical environment; benthic invertebrates, fish and their habitats; fishing...
Tipo: Text
Palavras-chave: Eastern English Channel; Dover Strait; Benthos; Fish; Habitat; Ecosystem; Marine spatial planning; Fisheries; Legislation; Trophic network; Food web; GIS; Geographic Information System.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00000/11169/7523.pdf

Solutions for ecosystem-level protection of ocean systems under climate change
Provedor de dados: 5
Autores: Queiros, Ana M.; Huebert, Klaus B.; Keyl, Friedemann; Fernandes, Jose A.; Stolte, Willem; Maar, Marie; Kay, Susan; Jones, Miranda C.; Hamon, Katell; Hendriksen, Gerrit; Vermard, Youen; Marchal, Paul; Teal, Lorna R.; Somerfield, Paul J.; Austen, Melanie C.; Barange, Manuel; Sell, Anne F.; Allen, Icarus; Peck, Myron A.
The Paris Conference of Parties (COP21) agreement renewed momentum for action against climate change, creating the space for solutions for conservation of the ocean addressing two of its largest threats: climate change and ocean acidification (CCOA). Recent arguments that ocean policies disregard a mature conservation research field and that protected areas cannot address climate change may be oversimplistic at this time when dynamic solutions for the management of changing oceans are needed. We propose a novel approach, based on spatial meta-analysis of climate impact models, to improve the positioning of marine protected areas to limit CCOA impacts. We do this by estimating the vulnerability of ocean ecosystems to CCOA in a spatially explicit manner and...
Tipo: Text
Palavras-chave: Climate change; Conservation; COP21; Ecosystem model; Habitat; Marine spatial planning; Ocean; Ocean acidification; Species distribution; Warming.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00360/47089/48566.pdf

Description and phylogenetic position of     Plagiolemma distortum     sp. nov., a new raphid diatom (Bacillariophyceae) from French coastal waters
Provedor de dados: 5
Autores: Nezan, Elisabeth; Bilien, Gwenael; Boulben, Sylviane; Mertens, Kenneth; Chomerat, Nicolas.
A new marine raphid diatom, Plagiolemma distortum Nézan, sp. nov. is described from plankton samples from the Atlantic Ocean, south Brittany (north-western France), where it was regularly observed, but never in high abundances. Cells have an unusual and complex shape under light microscopy (LM) depending on their position and orientation. The two valves are highly vaulted and narrow in width (transapical axis). Cells contain four complexly lobed plastids and a variable number of refractive granules without particular localization. In addition, capsules containing motile cells were observed. Ultrastructural details of the frustules were investigated using scanning electron microscopy (SEM). The girdle bands are simple. Each valve possesses a sigmoid raphe...
Tipo: Text
Palavras-chave: Capsules; Habitat; Molecular phylogeny; Plastids; Raphid diatom; Video.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00441/55235/56797.pdf

Marine resources of the economic zone of New Caledonia
Provedor de dados: 5
Autores: Auzende, Jean-marie; Grandperrin, René; Bouniot, Emmanuel; Henin, Christian; Lafoy, Yves; De Forges, Bertrand; Van De Beuque, Sabrina; Virly, Sabrina.
The ZoNeCo programme, devoted to the evaluation of living and non-living marine resources within the Economic Zone of New Caledonia, illustrates clearly the Marine Benthic Habitats concept. It exhibits the study of the physical environment and disciplines such as geology and physical oceanography. The results acquired in these fields are used as bases to study the presence and the distribution of living species within a given habitat. The knowledge of all the parameters relative to each discipline is a useful guide for the evaluation and the sustainable management of living and nonliving resources.
Tipo: Text
Palavras-chave: Ressources marines; Habitat; Nouvelle Calédonie; Ressources Sud Ouest Pacifique; Marine resources; Habitat; New Caledonia; Southwest Pacific.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/publication-832.pdf

Projecting changes in the distribution and productivity of living marine resources: A critical review of the suite of modeling approaches used in the large European project VECTORS
Provedor de dados: 5
Autores: Peck, Myron A.; Arvanitidis, Christos; Butenschon, Momme; Canu, Donata Melaku; Chatzinikolaou, Eva; Cucco, Andrea; Domenici, Paolo; Fernandes, Jose A.; Gasche, Loic; Huebert, Klaus B.; Hufnagl, Marc; Jones, Miranda C.; Kempf, Alexander; Keyl, Friedemann; Maar, Marie; Mahevas, Stephanie; Marchal, Paul; Nicolas, Delphine; Pinnegar, John K.; Rivot, Etienne; Rochette, Sebastien; Sell, Anne F.; Sinerchia, Matteo; Solidoro, Cosimo; Somerfield, Paul J.; Teal, Lorna R.; Travers-trolet, Morgane; Van De Wolfshaar, Karen E.
We review and compare four broad categories of spatially-explicit modelling approaches currently used to understand and project changes in the distribution and productivity of living marine resources including: 1) statistical species distribution models, 2) physiology-based, biophysical models of single life stages or the whole life cycle of species, 3) food web models, and 4) end-to-end models. Single pressures are rare and, in the future, models must be able to examine multiple factors affecting living marine resources such as interactions between: i) climate-driven changes in temperature regimes and acidification, ii) reductions in water quality due to eutrophication, iii) the introduction of alien invasive species, and/or iv) (over-)exploitation by...
Tipo: Text
Palavras-chave: Distribution; Modelling; Habitat; Resources; Man-induced effects.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00337/44845/44436.pdf

Modelling species distributions using regression quantiles
Provedor de dados: 5
Autores: Vaz, Sandrine; Martin, C; Eastwood, P; Ernande, Bruno; Carpentier, Andre; Meaden, G; Coppin, Franck.
1. Species distribution modelling is an important and well-established tool for conservation planning and resource management. Modelling techniques based on central estimates of species responses to environmental factors do not always provide ecologically meaningful estimates of species-environment relationships and are being increasingly questioned.   2. Regression quantiles (RQ) can be used to model the upper bounds of species-environment relationships and thus estimate how the environment is limiting the distribution of a species. The resulting models tend to describe potential rather than actual patterns of species distributions.   3. Model selection based on null hypothesis testing and backward elimination, followed by validation procedures, are...
Tipo: Text
Palavras-chave: Marine fish; Limiting factors; Habitat; Geographical information systems; Distribution models.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-3730.pdf

Trophic ecology of the European Hake in the Gulf of Lions, Northwestern Mediterranean Sea
Provedor de dados: 5
Autores: Mellon, Capucine; Harmelin-vivien, Mireille; Metral, Luisa; Loizeau, Veronique; Mortreux, Serge; Roos, David; Fromentin, Jean-marc.
The European hake, Merluccius merluccius, is an important resource for Mediterranean fisheries. This study focuses on juvenile and adult hake feeding ecology in the Gulf of Lions, using information from scientific surveys carried out during two seasons and three years (2004-2006). Stomach content and stable isotope (ä15N, ä13C) analyses were performed, and the main factors explaining variations in ä15N were investigated using GLMs. In the Gulf of Lions, hake mostly fed on crustaceans and fish and a dominant piscivorous regime was reached at 15 cm total length. Pelagic fish (sardine, anchovy and small blue whiting) were the main source of prey (40%-80%) and cannibalism was low (&lt;5%). The results confirmed that hake is an opportunistic feeder and also...
Tipo: Text
Palavras-chave: Foodweb; GLM; Habitat; Merluccius merluccius; Predator-prey relationships; Stable isotopes; Stomach contents.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00360/47091/47016.pdf

Global habitat preferences of commercially valuable tuna
Provedor de dados: 5
Autores: Arrizabalaga, Haritz; Dufour, Florence; Kell, Laurence; Merino, Gorka; Ibaibarriaga, Leire; Chust, Guillem; Irigoien, Xabier; Santiago, Jose Luis; Murua, Hilario; Fraile, Igaratza; Chifflet, Marina; Goikoetxea, Nerea; Sagarminaga, Yolanda; Aumont, Olivier; Bopp, Laurent; Herrera, Miguel; Fromentin, Jean-marc; Bonhomeau, Sylvain.
In spite of its pivotal role in future implementations of the Ecosystem Approach to Fisheries Management, current knowledge about tuna habitat preferences remains fragmented and heterogeneous, because it relies mainly on regional or local studies that have used a variety of approaches making them difficult to combine. Therefore in this study we analyse data from six tuna species in the Pacific, Atlantic and Indian Oceans in order to provide a global, comparative perspective of habitat preferences. These data are longline catch per unit effort from 1958 to2007 for albacore, Atlantic bluefin, southern bluefin, bigeye, yellowfin and skipjack tunas. Both quotient analysis and Generalized Additive Models were used to determine habitat preference with respect to...
Tipo: Text
Palavras-chave: Habitat; Tuna fisheries; Catch/effort; Environmental conditions; Quotient analysis; Generalised Additive Models; Ecosystem Approach to Fisheries Management.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00201/31190/29589.pdf

A state-space model to derive bluefin tuna movement and habitat from archival tags
Provedor de dados: 5
Autores: Royer, Francois; Fromentin, Jean-marc; Gaspar, P.
Archival tagging provides a unique way to study the spatial dynamics and habitat of pelagic fish. This technique generates lagrangian data of a particular type in marine ecology: although highly informative about processes at different scales (e.g. horizontal movements versus diving behaviour), such data are impaired by location errors and the lack of combination with actual environmental variability. The present paper introduces a framework for modelling bluefin tuna movement in relation to its habitat, using records of light, depth and temperature from archival tags. Based on data assimilation concepts and methods, we show how an explicit formulation of the observation process and the statistics of external variables (e.g. ambient temperature) can...
Tipo: Text
Palavras-chave: Tag; Archival; Habitat; Movement; Bluefin tuna.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-671.pdf

Fitting the truncated negative binomial distribution to count data A comparison of estimators, with an application to groundfishes from the Mauritanian Exclusive Economic Zone
Provedor de dados: 5
Autores: Mante, Claude; Kide, Saikou Oumar; Yao-lafourcade, Anne-francoise; Merigot, Bastien.
Modeling empirical distributions of repeated counts with parametric probability distributions is a frequent problem when studying species abundance. One must choose a family of distributions which is flexible enough to take into account very diverse patterns and possess parameters with clear biological/ecological interpretations. The negative binomial distribution fulfills these criteria and was selected for modeling counts of marine fish and invertebrates. This distribution depends on a vector of parameters, and ranges from the Poisson distribution (when ) to Fisher's log-series, when . Moreover, these parameters have biological/ecological interpretations which are detailed in the literature and in this study. We compared three estimators of K, and the...
Tipo: Text
Palavras-chave: Birth-and-dead models; Habitat; Log-series; Minimum Hellinger distance; Negative binomial; Species abundance.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00352/46332/74377.pdf

Impacts of climate change on the complex life cycles of ﬁsh
Provedor de dados: 5
Autores: Petitgas, Pierre; Rijnsdorp, Adriaan D.; Dickey-collas, Mark; Engelhard, Georg H.; Peck, Myron A.; Pinnegar, John; Drinkwater, Kenneth F.; Huret, Martin; Nash, Richard.
To anticipate the response of fish populations to climate change, we developed a framework that integrates requirements in all life stages to assess impacts across the entire life cycle. The framework was applied on plaice (Pleuronectes platessa) and Atlantic herring (Clupea harengus) in the North Sea, Atlantic cod (Gadus morhua) in the Norwegian/Barents Seas and European anchovy (Engraulis encrasicolus) in the Bay of Biscay. In each case study, we reviewed habitats required by each life stage, habitat availability, and connectivity between habitats. We then explored how these could be altered by climate change. We documented environmental processes impacting habitat availability and connectivity, providing an integrated view at the population level and in...
Tipo: Text
Palavras-chave: Connectivity; Habitat; Eco-physiology; Anchovy; Herring; Plaice; Cod.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00118/22935/20798.pdf

Seamount egg-laying grounds of the deep-water skate     Bathyraja richardsoni
Provedor de dados: 5
Autores: Henry, L. -a.; Stehmann, M. F. W.; De Clippele, L.; Findlay, H. S.; Golding, N.; Roberts, J. M.
Highly localized concentrations of elasmobranch egg capsules of the deep-water skate Bathyraja richardsoni were discovered during the first remotely operated vehicle (ROV) survey of the Hebrides Terrace Seamount in the Rockall Trough, north-east Atlantic Ocean. Conductivity–temperature–depth profiling indicated that the eggs were bathed in a specific environmental niche of well-oxygenated waters between 4·20 and 4·55° C, and salinity 34·95–35·06, on a coarse to fine-grained sandy seabed on the seamount's eastern flank, whereas a second type of egg capsule (possibly belonging to the skate Dipturus sp.) was recorded exclusively amongst the reef-building stony coral Solenosmilia variabilis. The depths of both egg-laying habitats (1489–1580 m) provide a de...
Tipo: Text
Palavras-chave: Deep sea; Elasmobranch; Environment; Habitat; Reproduction.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00344/45508/45061.pdf

The importance of habitat features in low-relief continental shelf environments
Provedor de dados: 5
Autores: Malatesta, Rj; Auster, Pj.
Benthic habitats can be loosely divided into low and high relief based upon gross bottom topography. While fish community studies in high relief environments such as coral reefs have been extensively studied using in situ visual analysis, most studies of low relief environments have utilized trawl-based methodologies. Such studies while valuable, are unable to detect small-scale variations in habitat availability and faunal responses to that variation. This paper presents the availability of other techniques, ranging from visual surveys to sonar and bathymetric analysis, which allow research era to address questions of habitat utilization in low relief environments.
Tipo: Text
Palavras-chave: Habitat; Communauté de poissons; Topographie; Habitat; Fish community; Topography.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43587/44027.pdf

Composition of the fish fauna in a tropical estuary: the ecological guild approach
Provedor de dados: 5
Autores: Ferreira, Valdimere; Le Loc'H, Francois; Menard, Frederic; Fredou, Thierry; Fredou, Flavia L.
Ecological guilds have been widely applied for understanding the structure and functioning of aquatic ecosystems. This study describes the composition and the spatio-temporal changes in the structure of the fish fauna and the movements between the estuary and the coast of a tropical estuary, the Itapissuma/Itamaraca Complex (IIC) in northeastern Brazil. Fish specimens were collected during the dry and rainy seasons in 2013 and 2014. A total of 141 species of 34 families were recorded. Almost half of the species (66 species, 47%) were exclusive to the estuary and 50 species (35%) to the coast; 25 (18%) were common to both environments. Marine species were dominant in both richness and biomass as they explore the environment during part of their life cycle,...
Tipo: Text
Palavras-chave: Fish; Functional attribute; Habitat; Pernambuco; Spatial-temporal distribution.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00505/61650/65569.pdf

Rapport final du projet CHAMILA (Cartographie des habitats en milieu lagunaire méditerranéen)
Provedor de dados: 5
Autores: Menu, Marion; Vaz, Sandrine; Bajjouk, Touria; Derolez, Valerie; Fiandrino, Annie; Giraud, Anais; Grillas, Patrick; Ouisse, Vincent.
Coastal Mediterranean lagoons are often defined as homogeneous ecosystems that home many migratory and sedentary species. They also host strong salinity gradients, depth variation and very diverse plant communities, which create small-scale heterogeneity within lagoons. This is why each lagoon must be described as an entity by itself made up of a multitude of homogeneous features, called habitats, which support specific ecological functions for organisms (nursery, feeding, protection against predators...). Although many studies have resulted in collecting high numbers of physical, chemical and biological data in coastal Mediterranean lagoons, there is currently a lack of knowledge of the spatial distribution of these habitats. In our project, we (1)...
Tipo: Text
Palavras-chave: Habitat; Cartographie; Typologie; Lagune méditerranéenne; Habitat; Map; Typology; Mediterranean lagoons.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00593/70545/73353.pdf

Fish faunal and habitat analyses using trawls, camera sleds and submersibles in benthic deep-sea habitats off central California
Provedor de dados: 5
Autores: Cailliet, Gm; Andrews, Ah; Wakefield, Ww; Moreno, G; Rhodes, Kl.
Beam trawl, camera sled and submersible data from 2 000-3 300 m off central California produced similar fish faunal composition, but different density estimates. All species caught in trawls were observed in camera-sled and submersible observations. However, some rare species that were observed were not caught in trawls. The fish fauna was dominated by the families Macrouridae, Zoarcidae, Moridae, and Rajidae. Fishes both trawled and observed were the macrourids Coryphaenoides armatus, C. filifer and C. leptolepis; the zoarcids Bothrocara spp., Pachycara lepinium and Lycenchelys spp.; the morid Antimora microlepis; the rajid Bathyraja trachura, the ophidiid Spectrunculus grandis, and the liparidid Careproctus ovigerum. One unidentified liparidid...
Tipo: Text
Palavras-chave: Benthos; Poisson; Habitat; Chalutage; Submersible; Deep-sea; Fishes; Habitat; Sampling; Submersibles.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43583/44022.pdf

Spatially explicit estimation of fish length histograms, with application to anchovy habitats in the Bay of Biscay
Provedor de dados: 5
Autores: Petitgas, Pierre; Doray, Mathieu; Masse, Jacques; Grellier, Patrick.
Fish length frequency histograms from research surveys are of prime importance for identifying habitats of different life stages, as well as for stock assessment. However, no method has thus far been available for mapping these histograms as spatially varying curves. Here, a procedure is applied to map spatially connected curves, and detail is given on how it can be applied to map the length frequency histograms. At each sample location, a fish length frequency histogram is given as a vector of non-independent values. The histogram is first modelled as a polynomial expansion on the basis of orthogonal polynomials. Then, the polynomial coefficients are mapped by co-kriging, after fitting a model of co-regionalization. The length frequency map is finally...
Tipo: Text
Palavras-chave: Co-kriging; European anchovy; Fish length; Functional kriging; Habitat; Mapping curves.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00049/16042/13581.pdf

Etat de santé des habitats et peuplements de poissons des atolls d’Entrecasteaux, zone inscrite au Patrimoine Mondial de l’Humanité et Parc naturel de la mer de Corail. Evaluation initiale par stations vidéo rotatives STAVIRO
Provedor de dados: 5
Autores: Schohn, Thomas; Pelletier, Dominique; Carpentier, Liliane.
The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. Observation relies on remote unbaited underwater video, using the STAVIRO rotating technique (Pelletier et al. 2012).  This survey was conducted in 2015 in Entrecasteaux Reefs, both located within the Coral Sea Natural Park, and part of World Heritage site. 109 STAVIRO were validated in 9 days, covering the reefs and geomorphological units in the area. Images were analyzed to characterize the habitat surrounding each station, and fishes based on a list of 565 species (Pelletier et al. 2016).  28 indicators were computed and represented on maps (Sextant server). Indicators were analyzed using the...
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Aire Marine Protégée; Patrimoine mondial; Parc de la mer de Corail; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Cartes; Sextant; PAMPA; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Marine Protected Area: Coral Sea Natural Park; World Heritage; Coral reefs; New Caledonia; Indicator; Dashboard; Map; Sextant; PAMPA.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51760/52357.pdf

Social Structure, Habitat Use and Injuries of Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) Reveal Isolated, Coastal, and Threatened Communities in the South Pacific
Provedor de dados: 5
Autores: Bonneville, Claire Daisy; Derville, Solène; Luksenburg, Jolanda A.; Oremus, Marc; Garrigue, Claire.
Understanding population structure and habitat use of poorly known cetacean species is a first step toward scientifically informed management decisions. In the southern range of New Caledonia (South Pacific), a long-term dataset of Indo-Pacific bottlenose dolphins (Tursiops aduncus) encounters primarily during winter seasons 1997 to 2019 (473 group observations) was used to assess social structure, habitat use and potential threats. A total of 338 individuals were photographically identified, forming three distinct communities in the south-west lagoon, the south lagoon and the Isle of Pines. Mark-recapture histories revealed that the three communities were weakly connected and might be considered as independent management units. Suitable habitats were...
Tipo: Text
Palavras-chave: Odontocetes; New Caledonia; Social communities; Habitat; Anthropogenic impacts; Scars.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00682/79407/81953.pdf

Spring habitats of small pelagic fish communities in the Bay of Biscay
Provedor de dados: 5
Autores: Doray, Mathieu; Hervy, Camille; Huret, Martin; Petitgas, Pierre.
Mapping habitats of species communities helps to inform on the ecological processes which drive their distribution. This information is critical to identify suitable areas for spatial management, aimed at preserving biodiversity, ecosystem functions or essential habitats. While demersal fish have been extensively studied at the community scale, small pelagic fish have mainly been characterised at the population scale. This paper presents a community-based approach on the biodiversity of small pelagic fish, with the aim to: (i) define small pelagic fish communities, (ii) characterise their spatial and interannual dynamics, and (iii) assess their habitats. We present a Multiple Factor Analysis (MFA)-based method that characterises the spatio-temporal...
Tipo: Text
Palavras-chave: Habitat; Small pelagic fish; Bay of Biscay; Spatial distribution; Multiple Factor Analysis.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00411/52236/53046.pdf

Etat de santé des habitats et peuplements de poissons des îles et récifs de l’Astrolabe, Pétrie et Walpole, Parc Naturel de la Mer de Corail. Evaluation initiale par stations vidéo rotatives STAVIRO
Provedor de dados: 5
Autores: Schohn, Thomas; Bockel, Thomas; Carpentier, Liliane; Pelletier, Dominique.
- The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. The survey relies on remote unbaited underwater video observations, using the STAVIRO rotating technique.  - The study pertains to the reefs of Astrolabe, Pétrie and Walpole Island, located within the Coral Sea Natural Park. The survey conducted in 2014 covers the entire area, and the sampling design was stratified according to reef type. 95 stations were validated. They were analyzed to characterize the habitat surrounding each station, and fish communities, based on a list of 565 fish species (cf. AMBIO/A/1).  - 28 indicators were computed and mapped (maps available on a Sextant server)....
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Parc naturel mer de Corail; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Ecosystème corallien; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Marine Protected Area: Coral Sea Natural Park; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51738/52324.pdf

Environmental setting of deep-water oysters in the Bay of Biscay
Provedor de dados: 5
Autores: Van Rooij, David; De Mol, L.; Le Guilloux, Erwan; Wisshak, M.; Huvenne, V. A. I.; Moeremans, R.; Henriet, Jean-pierre.
We report the northernmost and deepest known occurrence of deep-water pycnodontine oysters based on two surveys along the French Atlantic continental margin to the La Chapelle continental slope (2006) and the Guilvinec Canyon (2008) The combined use of multibeam bathymetry seismic profiling CTD casts and a remotely operated vehicle (ROV) made it possible to describe the physical habitat and to assess the oceanographic control for the recently described species Neopycnodonte zibrowii These oysters have been observed in vivo in depths from 540 to 846 m colonizing overhanging banks or escarpments protruding from steep canyon flanks Especially in the Bay of Biscay such physical habitats may only be observed within canyons where they are created by both...
Tipo: Text
Palavras-chave: Bay of Biscay; Deep water oysters; Canyons; Habitat; Resuspension; MOW; Neopycnodonte zibrowii.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00023/13419/14034.pdf

Utilisation de la technique vidéo STAVIRO pour l’observation et le suivi des ressources et des écosystèmes récifo‐lagonaires de Mayotte. Etude pilote et recommandations pour les suivis futurs. Annexe 2 : Fiches métriques : Influences du statut de protection (Réserve de la passe Longogori), du type géomorphologique et de l’habitat
Provedor de dados: 5
Autores: Roman, William; Pelletier, Dominique; Wickel, Julien; Giannasi, Paul.
• This work deals with coral reef fish resources and communities in the Natural Marine Park of Mayotte, Western Indian Ocean). It relies on remote unbaited underwater video observations, using the STAVIRO rotating technique.  • This document is complementary to the main assessment report:  William Roman and Dominique Pelletier, 2016. The STAVIRO video technique for monitoring fish resources and reef ecosystems in the Natural Marine Park of Mayotte (Western Indian Ocean). Pilot study and recommendations for monitoring. EXPLOCEAN-IFREMER Report.  • It pertains to the assessment of resources with respect to protection status and factors related to local habitat and reef geomorphology. • It comprises the description of the metrics used for the assessment:...
Tipo: Text
Palavras-chave: Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Biodiversité; Ecosystème corallien; AMP; Parc Naturel Marin de Mayotte; Indicateur; PAMPA; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Biodiversity; Coral reefs; MPA; Natural Marine Park of Mayotte; Indicator; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00373/48423/48644.pdf

Evolution du peuplement halieutique de la baie de Vilaine au cours des décennies 1980 et 1990
Provedor de dados: 5
Autores: Desaunay, Yves; Guerault, Daniel.
A beam trawl survey of the Bay of Vilaine was conducted from 1981 to 1997. Changes in the commercial fish community were analyzed by comparing the characteristics at the year and decadal scales. The community structure and nursery function of the Bay were steady during the period. However, specific richness, assiduity and distribution indices demonstrated a reduction in the second decade. The global abundance fell from 105.8 ind.ha-1 to 31.3 ind.ha-1. This trend was less marked for the external more marine stratum, which exhibited the lowest densities. The results are discussed in terms of ecological meaning of such a community, compared with the overall demersal fish community. The reasons of the decrease are questioned regarding nursery habitat, local...
Tipo: Text
Palavras-chave: Habitat; Survey; Bay of Vilaine; Fish community; Habitat; Suivi; Baie de Vilaine; Poissons; Peuplement.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/rapport-1288.pdf

Suivi de la biodiversité par vidéo sous-marine : analyse d’images et analyse des données recueillies dans la zone de Koné, Province Nord de Nouvelle-Calédonie
Provedor de dados: 5
Autores: Jac, Cyrielle.
This study describes my work within the AMBIO project at the IFREMER center of Noumea. The aim of this study is to analyze and to treat underwater video to make a short ecological report of Koné lagoon. After an explanation of the video technics used (STAVIRO) and of the pictures analyze protocols, you will find a description of the working area. Next, this report presents ecological status of this place.
Tipo: Text
Palavras-chave: Stations Vidéos Rotatives; Ichtyofaune; Habitat; Réserve; SIG; Statistiques; STAVIRO; Fish; Habitat; Reserve; SIG; Statistics.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00250/36078/34629.pdf

Datalogging instrument arrays: powerful yet inexpensive tools for recording the heterogeneous physical environment of coral reefs
Provedor de dados: 5
Autores: Moore, Sw.
The physical structure of coral reefs, like that of rainforests and other spatially-complex ecosystems, modulates light, fluid flow, and other physical variables to create a spatially and temporally complex mosaic of microhabitats. Accurate and affordable methods for quantifying this spatio-temporal variation are required to address many basic and applied research questions related to the ecology and management of reefs. Recent advances in semiconductor electronics technology have made it easier and much less expensive to build small and reliable datalogging instruments, which can be deployed in arrays to record spatio-temporal patterns of ecologically-important variables. Suitable instruments are already commercially available for $100 (US) or less per...
Tipo: Text
Palavras-chave: Instrumentation; Habitat; Écologie physique; Électronique; Instrumentation; Habitat characterization; Physical ecology; Electronics.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43592/44033.pdf

Picturing thermal niches and biomass of hydrothermal vent species
Provedor de dados: 5
Autores: Husson, Berengere; Sarradin, Pierre-marie; Zeppilli, Daniela; Sarrazin, Jozee.
In community ecology, niche analysis is a classic tool for investigating species’ distribution and dynamics. Components of a species’ niche include biotic and abiotic factors. In the hydrothermal vent ecosystem, although composition and temporal variation have been investigated since these deep-sea habitats were discovered nearly 40 years ago, the roles and the factors behind the success of the dominant species of these ecosystems have yet to be fully elucidated. In the Lucky Strike vent field on the Mid Atlantic Ridge (MAR), the dominant species is the mussel Bathymodiolus azoricus. Data on this species and its associated community were collected during four oceanographic cruises on the Eiffel Tower edifice and integrated in a novel statistical framework...
Tipo: Text
Palavras-chave: Bathymodiolus azoricus; OMI; Habitat; Niche; Mid-Atlantic ridge; Lucky strike.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00341/45254/44692.pdf

Mapping marine habitats with high resolution sidescan sonar
Provedor de dados: 5
Autores: Mcrea, Je; Greene, Hg; O'Connell, Vm; Wakefield, Ww.
The application of marine geophysics and GIS techniques to the characterization of benthic habitats has increased the ability of fisheries managers to assess distribution and habitat types beyond common practices. We report upon a 150 kHz sidescan sonar survey offshore of Kruzof Island, Alaska undertaken to characterize rockfish (Sebastes) habitat. Using GIS, MapGrafix and Map*Factory we determined the percentage of seafloor cover that exists in our survey area. Bathymetry in the study area was determined with sidescan interferometry. All XYZ data were gridded using Surfer and plotted in shaded relief, bathymetric contour, and 3-dimensional formats. Contoured bathymetry was used as an overlay in MapGrafix. Small sub-areas were extracted from the...
Tipo: Text
Palavras-chave: Habitat; Mégahabitat; Mésohabitat; Balayage; Cartographie; Habitat; Megahabitat; Mesohabitat; Sidescan; Mapping.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43591/44031.pdf

Bionomie benthique de l'estuaire de la Loire. I. Observations sur l'estran maritime de la mer a Cordemais.
Provedor de dados: 5
Autores: Marchand, Jocelyne.
This study was the first to be undertaken since 1901, since when natural and industrial changes had occurred to affect the habitat. Observations are reported here for the banks of the north and south shores, using certain points as reference. Features of the 2 shores are described, and an inventory given of the fauna of the banks. Hydrozoan Cnidaria, Bryozoans, Annelids, Molluscs, Crustacea and fish are listed with notes, and particular attention is given to the crabs found (Rhithropanopeus harrisii tridentatus). The monthly distribution of crab sizes and sexes is given, and the species of animals found in association with crabs is shown to vary according to the site studied. The percentage of female crabs found to be fertile each month was investigated,...
Tipo: Text
Palavras-chave: Crustacea and fish; Molluscs; Fauna; Habitat; Observation; Loire; Benthic bionomy.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2069.pdf

Etat de santé initial des habitats et peuplements de poissons des récifs de Chesterfield-Bellona, Parc Naturel de la Mer de Corail, Campagne de stations vidéo rotatives STAVIRO 2013
Provedor de dados: 5
Autores: Pelletier, Dominique; Bockel, Thomas; Roman, William; Carpentier, Liliane; Laugier, Thierry.
- The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. The surveys rely on remote unbaited underwater video observations, using the STAVIRO rotating technique. Chesterfield and Bellona remote reefs and atolls are located in the Coral Sea Marine Park, northwest of New Caledonia. -This 2013 survey is the first scientific survey covering the entire area, with a sampling design stratified according to reef type. 203 stations were validated within 10 days. They were analyzed to characterize the habitat surrounding each station, and fish communities, based on a list of 565 fish species (cf. AMBIO/A/1). - 34 indicators were computed and mapped (maps...
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Parc de la Mer de Corail; Aire Marine Protégée; AMP; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Coral Sea Marine Park; Marine Protected Area; MPA; World Heritage; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00381/49247/49700.pdf

Forêts de laminaires à Molène : approches multi-échelles des fonds rocheux de l’archipel
Provedor de dados: 5
Autores: Ehrhold, Axel; Bajjouk, Touria; Cordier, Celine; Le Nilliot, Philippe; Hamdi, Anouar; Drussel, Benjamin; Guerin, Charline; Le Gall, Bernard; Populus, Jacques.
Tipo: Text
Palavras-chave: Habitat; Laminaires; Systèmes acoustiques; Lidar; Géomorphologie; MNT.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00281/39230/37790.pdf

Evaluation de l’état de santé des habitats et peuplements de poissons de la zone de Voh-Koné-Pouembout, Campagnes de stations vidéo rotatives STAVIRO 2007-2013
Provedor de dados: 5
Autores: Giraud-carrier, Charlotte; Pelletier, Dominique.
• Conducted within the AMBIO project, this work deals with coral reef fish communities and associated habitats, in the New Caledonian lagoons. It aims at assessing the status and trends of habitats and mobile macrofauna in the Voh-Kone-Pouembout lagoon, in the light of demographic and industrial developments and accounting for the existing customary reserve of Oundjo. • It relies on 280 stations collected in 2007 and 2013 using the remote unbaited underwater video STAVIRO rotating technique, which were analysed to characterize habitat, fish assemblages, turtles and sea snakes, from a list of 490 species (AMBIO/A/1). • 143 species (including one turtle species and one sea snake species), belonging to 23 families were observed. The most frequent and abundant...
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Impact anthropique; Aire Marine Protégée; Réserve coutumière; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Biodiversity; Fish assemblage; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Anthropogenic impact; Marine Protected Area; MPA; Customary reserve; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00360/47109/47050.pdf

Projet GERMON. Structure génétique et migration du thon Germon
Provedor de dados: 5
Autores: Nikolic, Natacha; Puech, Alexis; Chouvelon, Tiphaine; Munschy, Catherine; Bodin, Nathalie; Brach-papa, Christophe; Potier, Michel; West, Wendy; Knoery, Joel; Zudaire, Iker; Dhurmeea, Zahirah; Degroote, Maxime; Cedras, Maria; Evano, Hugues; Bourjea, Jerome.
The GERMON project had several aims i) to understand the populations’ structure between albacore tuna southwest of the Indian Ocean and southeast Atlantic, ii) to determine the origin of juveniles observed in South Africa iii) to improve the understanding of the biology field (Size/Size and Size/Weight; reproduction and feeding area; trophic linkages) and iv) to initiate work on chemical analyzes and adaptation of the albacore species to its environment. These aims have been held and the results allow a better understanding of the management albacore. A general summary of results is presented in Part 9.
Tipo: Text
Palavras-chave: Germon; Thunnus alalunga; Génétique; Stock; Structure; Connectivité; Chimie; Reproduction; Alimentation; Habitat; Albacore; Thunnus alalunga; Genetic; Stock; Structure; Connectivity; Chemical; Reproduction; Feeding behavior; Habitat.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00293/40461/39152.pdf

Arbre de régression multivariable : application à une communauté de poissons littoraux d’un lac du Bouclier canadien
Provedor de dados: 5
Autores: Brind'Amour, Anik.
La combinaison de deux approches statistiques, une analyse de partitionnement et la technique de l’arbre de régression mutivariable, a été utilisée afin de développer un modèle d’utilisation d’habitats pour une communauté de poissons d’un lac du Bouclier canadien. Les résultats soulignent l’importance des variables dites associées dans le modèle et l’importance de la taille de l’habitat dans la succession d’autres variables environnementales structurantes et dans la détermination de la composition spécifique de la communauté de poissons du lac à l’étude.
Tipo: Text
Palavras-chave: Arbre de régression mutivariable; Communauté piscicole; Habitat; Lac; Partitionnement par la méthode des K centroïdes (K-means).
Ano: 2005
URL: http://archimer.ifremer.fr/doc/00048/15972/13412.pdf

Habitat particulier : le coralligène. Sous-région marine Méditerranée occidentale. Evaluation initiale DCSMM.
Provedor de dados: 5
Autores: Sartoretto, Stephane; Baucour, Colombe.
Tipo: Text
Palavras-chave: Méditerranée; Coralligène; Habitat; Circalittoral; Communautés; Etat de conservation.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00331/44207/43776.pdf

Analysing Temporal Variability in Spatial Distributions Using Min–Max Autocorrelation Factors: Sardine Eggs in the Bay of Biscay
Provedor de dados: 5
Autores: Petitgas, Pierre; Renard, Didier; Desassis, Nicolas; Huret, Martin; Romagnan, Jean-baptiste; Doray, Mathieu; Woillez, Mathieu; Rivoirard, Jacques.
This paper presents a novel application of the geostatistical multivariate method known as min–max autocorrelation factors (MAFs) for analysing fisheries survey data in a space–time context. The method was used to map essential fish habitats and evaluate the variability in time of their occupancy. Research surveys at sea on marine fish stocks have been undertaken for several decades now. The data are time series of yearly maps of fish density, making it possible to analyse the space–time variability in fish spatial distributions. Space–time models are key to addressing conservation issues requiring the characterization of variability in habitat maps over time. Here, the variability in fisheries survey data series is decomposed in space and time to address...
Tipo: Text
Palavras-chave: MAF; Space-time; Habitat; Mapping; Sardine; Bay of Biscay.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00599/71157/69915.pdf

On the presence of the rissoid gastropod Alvania lamellata Dautzenberg, 1889 on the top of the azorean Condor seamount (206 m depth)
Provedor de dados: 5
Autores: Le Duff, Michel; Bongiorni, Lucia; Zeppilli, Daniela; Grall, Jacques.
This note reports the presence of the rissoid gastropod Alvania lamellata Dautzenberg, 1889 on the top of the Condor seamount (Azores) at 206 m depth. This allows reconsideration of the ecology of the species which lives in the deep circalittoral rather than in the bathyal zone.
Tipo: Text
Palavras-chave: Rissoidae; Alvania lamellata; Açores; Mont sous-marin; Étage; Rissoidae; Alvania lamellata; Azores; Seamount; Habitat.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00199/31051/29471.pdf

Utilisation de la technique vidéo STAVIRO pour l’observation et le suivi des ressources et des écosystèmes récifo-lagonaires de Mayotte. Etude pilote et recommandations pour les suivis futurs
Provedor de dados: 5
Autores: Roman, William; Pelletier, Dominique.
• In order to assess the sustainability of fish resources in the Natural Marine Park of Mayotte (Western Indian Ocean), indicators and monitoring protocols must be determined. • This study relied on the underwater video technique STAVIRO for assessing fish communities and resources. A pilot survey was conducted in Nov. 2014 in the south-east quarter of the Mayotte lagoon, an area encompassing the marine reserves of Longogori, M’Bouzi and the Saziley Marine Park. Out of 115 stations collected, 104 were analysed for habitat and fish, based on a list of 527 species with fishing, ecological, or emblematic interest (cf. AMBIO/A/1). • 43 indicators were computed, analysed, and for some mapped. The PAMPA computing tool was used in this purpose. • 130 fish species...
Tipo: Text
Palavras-chave: Ichtyofaune; Pêche; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Biodiversité; Ecosystème corallien; AMP; Parc Naturel Marin de Mayotte; Océan Indien; Indicateur; Tableau de bord; PAMPA; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Biodiversity; Coral reefs; MPA; Natural Marine Park of Mayotte; Western Indian Ocean; Indicator; Dashboard; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00373/48421/48642.pdf

Aires marines protégées et récifs artificiels : méthodes d'évaluation, protocoles expérimentaux et indicateurs
Provedor de dados: 5
Autores: Claudet, Joachim.
Marine Protected Areas' (MPAs) and Artificial Reef's (ARs) management requires complex assessment and monitoring programmes, dealing with different sources of variability. We studied and developed experimental designs and analysis methods suited for the establishment of a monitoring of MPAs and ARs. This methodology is developed from existing data sets in the Northwestern Mediterranean. We build multi-criteria indicators allowing a statistically testable diagnosis of the impact of MPAs and ARs on reef fish assemblages. Using ecological performance indicators permits to monitor and to give an image of the assessed system to managers.  It was possible to show the global response of the fish assemblages to the protection by a MPA. This response was evidenced...
Tipo: Text
Palavras-chave: Management; Northwestern Mediterranean; Statistical Power; Monitoring; Habitat; Multivariate; Indicators; Temperate Fish; Impact Assessment; Artificial Reefs; Marines Protected Areas; Gestion; Méditerranée Nord Occidentale; Puissance Statistique; Suivis; Habitat; Multivarié; Indicateurs; Poissons Tempérés; Evaluation d'Impact; Récifs Artificiels; Aires Marines Protégées.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/these-2132.pdf

Le rouget barbet de roche Mullus surmuletus (L. 1758) en Manche orientale et mer du Nord.
Provedor de dados: 5
Autores: Mahe, Kelig; Destombe, A.; Coppin, Franck; Koubbi, P.; Vaz, Sandrine; Le Roy, Didier; Carpentier, Audrey.
General introduction: The red mullet is among the fish that are the most popular and that have been known of for the longest amount of time. The Greeks and the Romans have left us in their literature famous pages in which they praise the quality and beautiful colours of their gurnards and their mulles. Also, the skin of this fish has been very popular since earliest antiquity:   It is said that for the Romans, a beautiful fish was worth more than the man who had caught it! Moreover, at feasts, a red mullet was displayed in a vase to amuse the guests with the changes of colour (Bloch, 1793).  The red rock mullet (Mullus surmuletus) is a benthic fish, which means it lives near the sea bottom. It is geographically present in the Atlantic Ocean from the coasts...
Tipo: Text
Palavras-chave: Sig; North sea; English channel; Population dynamic  data; Habitat; Spatial repartition; Biology; Mullus surmuletus.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/rapport-2351.pdf

Modelling the variability in fish spatial distributions over time with empirical orthogonal functions: anchovy in the Bay of Biscay
Provedor de dados: 5
Autores: Petitgas, Pierre; Doray, Mathieu; Huret, Martin; Masse, Jacques; Woillez, Mathieu.
Characterizing the space–time variability in spatial distributions as well as understanding its drivers is basic to designing robust spatial management plans. As a prerequisite, we analyse here how this variability relates to population dynamics in conjunction with environmental conditions. For that, spatio-temporal statistical approaches are needed but seldom used in fisheries science. To fill this gap, we showcase the usefulness of the method of empirical orthogonal functions (EOFs). Guidelines are given to apply the method on a series of gridded maps as derived from fisheries survey dataseries that now span over decades. The method is applied to the series, 2000–2012, of the spatial distributions of European anchovy in the Bay of Biscay at spawning...
Tipo: Text
Palavras-chave: Anchovy; Bay of Biscay; Density-dependence; EOF; Habitat; Spatial distribution.
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00222/33365/31907.pdf

A classification scheme for deep seafloor habitats
Provedor de dados: 5
Autores: Greene, Hg; Yoklavich, Mm; Starr, Rm; O'Connell, Vm; Wakefield, Ww; Sullivan, De; Mcrea, Je; Cailliet, Gm.
A standard, universally useful classification scheme for deepwater habitats needs to be established so that descriptions of these habitats can be accurately and efficiently applied among scientific disciplines. In recent years many marine benthic habitats in deep water have been described using geophysical and biological data. These descriptions can vary from one investigator to another, which makes it difficult to compare habitats and associated biological assemblages among geographic regions. Using geophysical data collected with a variety of remote sensor systems and in situ biological and geologic observations, we have constructed a classification scheme that can be used in describing marine benthic habitats in deep water.
Tipo: Text
Palavras-chave: Habitat; Classification universelle; Benthique; Gestion des pêcheries; Habitat; Universal classification; Benthic; Fisheries management.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43590/44030.pdf

Utilisation de la technique vidéo STAVIRO pour l’observation et le suivi des ressources et des écosystèmes récifo‐lagonaires de Mayotte. Etude pilote et recommandations pour les suivis futurs. Annexe 1 : Fiches métriques : Influences du statut de pêche, du type géomorphologique et de l’habitat
Provedor de dados: 5
Autores: Roman, William; Pelletier, Dominique; Wickel, Julien; Giannasi, Paul.
• This work deals with coral reef fish resources and communities in the Natural Marine Park of Mayotte, Western Indian Ocean). It relies on remote unbaited underwater video observations, using the STAVIRO rotating technique.  • This document is complementary to the main assessment report:  William Roman and Dominique Pelletier, 2016. The STAVIRO video technique for monitoring fish resources and reef ecosystems in the Natural Marine Park of Mayotte (Western Indian Ocean). Pilot study and recommendations for monitoring. EXPLOCEAN-IFREMER Report.  • It pertains to the assessment of resources with respect to fishing pressure and factors related to local habitat and reef geomorphology. • It comprises the description of the metrics used for the assessment:...
Tipo: Text
Palavras-chave: Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Biodiversité; Ecosystème corallien; AMP; Parc Naturel Marin de Mayotte; Indicateur; PAMPA; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Biodiversity; Coral reefs; MPA; Natural Marine Park of Mayotte; Indicator; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00373/48422/48643.pdf

The role of mangrove in the French Guiana shrimp fishery
Provedor de dados: 5
Autores: Diop, Bassirou; Sanz, Nicolas; Blanchard, Fabian; Walcker, Romain; Gardel, Antoine.
This paper investigates the role of mangrove as an habitat in the evolution of the French Guiana shrimp stock to explain the recent collapse of shrimp production. To achieve our aim, we use the open access fishery model developed by Barbier and Strand [1998. “Valuing Mangrove-Fishery Linkages-A Case Study of Campeche, Mexico.” Environmental and Resource Economics 12: 151–166] and integrate mangrove surface into the shrimp natural growth function. This enables to account directly for the effects of mangrove surface changes on the stock dynamics and thus production. Our results indicate that financial losses in the French Guiana shrimp fishery increase when mangrove surface decreases and are mitigated when mangrove surface increases. We show that changes in...
Tipo: Text
Palavras-chave: Shrimp fishery; Mangrove; Habitat; Production function; Open access.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00458/56936/59376.pdf

Natural history and conservation of the rediscovered Hula painted frog, Latonia nigriventer
Provedor de dados: 16
Autores: Bina Perl, R.G.; Gafny, S.; Malka, Y.; Renan, S.; Woodhams, D.C.; Rollins-Smith, L.; Pask, J.D.; Bletz, M.C.; Geffen, E.; Vences, M.
Dramatic global amphibian declines have recently led to an increased concern for many species of this animal class. The enigmatic Hula painted frog (Latonia nigriventer), the first amphibian to be declared extinct but unexpectedly rediscovered in 2011, has remained one of the rarest and most poorly understood amphibians worldwide. Gathering basic biological information on this species, along with an understanding of its disease-related threats remains fundamental for developing risk assessments and conservation strategies. Our surveys in recent years confirmed that L. nigriventer is a localised species with elusive habits. The species appears to follow an opportunistic breeding phenology and has a tadpole morphology similar to its well-studied sister group...
Tipo: Article / Letter to the editor
Palavras-chave: Amphibia; Antimicrobial peptides; Anura; Batrachochytrium dendrobatidis; Habitat; Skin microbiota; Tadpole.
Ano: 2017
URL: http://www.repository.naturalis.nl/record/623831

Verspreiding en habitat van de zeggekorfslak Vertigo moulinsiana in Zuid-Holland
Provedor de dados: 16
Autores: Boesveld, A.; Kalkman, V.J.
In 2005 werd onverwachts de zeggekorfslak op twee plaatsen in Zuid-Holland aangetroffen (Boesveld, 2005). De zeggekorfslak staat op de Habitatrichtlijn en geniet wettelijke bescherming. Om hieraan invulling te kunnen geven is het voor de provincie Zuid-Holland van belang om goede informatie over de verspreiding, biotoopkeuze en beheer van deze soort te hebben. In 2006 heeft de provincie daarom aan EIS-Nederland de opdracht gegeven om het voorkomen van de soort in de provincie in kaart te brengen.   Tijdens het in 2006 uitgevoerde veldwerk is V. moulinsiana in totaal in negen (deel)gebieden aangetroffen: Nieuwkoopse plassen, Kagerplassen, Braassemermeer en Wijde Aa, Rotte, Hennipsloot en Lange Vaart, Vlietlanden, Kinderdijk, Groote- of Achterwaterschap en...
Tipo: Book (monograph)
Palavras-chave: Vertigo moulinsiana; Zeggekorfslak; Habitat; Verspreiding; 42.73.
Ano: 2007
URL: http://www.repository.naturalis.nl/record/226914

Variation in the nocturnal foraging distribution of and resource use by endangered Ryukyu flying foxes (Pteropus dasymallus) on Iriomotejima Island, Japan
Provedor de dados: 16
Autores: Lee, Y.-F.; Takaso, T.; Chiang, T.-Y.; Kuo, Y.-M.; Nakanishi, N.; Tzeng, H.-Y.; Yasuda, K.
The nocturnal distribution and resource use by Ryukyu flying foxes was studied along 28 transects, covering five types of habitats, on Iriomote Island, Japan, from early June to late September, 2005. Bats were mostly encountered solitarily (66.8%) or in pairs (16.8%), with a mean linear density of 2.5 ± 0.6 bats/km of transect/night. Across the island, however, bat densities were distributed non-randomly among transect-nights, not correlated with transect length, and showed a slightly clumped distribution (variance/mean = 3.3). Outskirt trails contributed higher values to the relative importance of bat abundance, but the highest mean abundances occurred mostly at village sites on the west coast, which on average devoted only a quarter of their land area to...
Tipo: Article / Letter to the editor
Palavras-chave: Abundance; Bats; Chiroptera; Diet; Figs; Frugivores; Habitat; 42.84.
Ano: 2009
URL: http://www.repository.naturalis.nl/record/311809

Trends in dragonfly occurrence in Belgium (Odonata)
Provedor de dados: 16
Autores: Knijf, G. de; Anselin, A.; Goffart, P.
Trends in dragonfly occurrence in Belgium (Odonata)   The group ‘Gomphus’ collected 65 000 records of 69 species of Odonata, more or less equally scattered over Belgium. The best-investigated areas are the northern part and some river valleys in the south. Most hot spots can be found in the northeastern part, with a maximum of 48 species for 25 km². Remarkable is the fact that 50% of the species occurs in less than 7% of the 5 km grid cells (UTM). We determined trends in occurrence by comparing three periods: before 1950, 1950-1989 and 1990-2000. Four species show a clear decline over the three periods, eight species give evidence of a historical decline but survive on a limited number of sites and eight species also display a historical decline but have...
Tipo: Article in monograph or in proceedings
Palavras-chave: Odonata; Dragonflies; Belgium; Atlas; Hot spot; Abundance class shift; Habitat; 42.75.
Ano: 2003
URL: http://www.repository.naturalis.nl/record/219852

A new species of Atractus (Reptilia: Ophidia: Colubridae: Dipsadinae) from the Amazon forest region in Brazil
Provedor de dados: 16
Autores: Hoogmoed, M.S.; Prudente, A.L.C.
Three specimens of Atractus natans were found during fieldwork in the “Reserva Mamirauá”, Amazonas and a fourth one in the “Estação Científica Ferreira Penna”, Floresta de Caxiuanã, Pará, Brazil. The specimens from Mamirauá were all collected in floating logs in várzea forest during the period of flooding. The new species is small (maximum total length 308 mm) with a coniform head, has 17-17-17 smooth dorsals, without apical pits, male lacking pre-anal keels, ventrals 136-162, caudals 19-25, anal undivided. One or two postoculars, loreal 1.6 –2.8 times as long as high, frontal triangular, wider than long. Maxillary teeth 5-6. The hemipenis is bilobed, with bifurcated sulcus spematicus, capitulum with calyces covered by very small spines, body covered by...
Tipo: Article / Letter to the editor
Palavras-chave: Reptilia; Colubridae; Atractus; Spec. nov.; Brazil; Amazonia; Mamirauá; Caxiuanã; Habitat; Várzea; 42.82.
Ano: 2003
URL: http://www.repository.naturalis.nl/record/216162

Body condition and energy density of juvenile streaked prochilod Prochilodus lineatus (Valenciennes, 1837) in a Neotropical floodplain
Provedor de dados: 83
Autores: Corbetta,Daiany de Fátima; Veronezzi,Ana Lúcia; Benedito,Evanilde.
ABSTRACT Variations in energetic density (E  D ) and the relative condition factor (K  n ) of juveniles of Prochilodus lineatus were investigated to identify whether these two variables respond similarly to environmental factors. We hypothesized that fluviometric levels in different sub-basins of the Upper Paraná River floodplain positively influence the E  D and K  n of juvenile fish. Temporally, the values of E  D and K  n were linked more directly to the dynamics of the flood pulses on the plain. Spatially, the lowest values of E  D and K  n were observed in the environment that was directly affected by the operation of dams, the sub-basin Paraná. Although the energy density and condition factor did not show similar results for juveniles in some of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Condition Factor; Food web; Habitat; Impact; Paraná basin.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000400201

Variation in energy density of Loricariichthys platymetopon (Siluriformes: Loricariidae) in the upper Paraná River basin
Provedor de dados: 83
Autores: Garcia,Daniela Aparecida; Benedito,Evanilde.
The present study described the variations in energy density from skeletal muscles of Loricariichthys platymetopon in relation to body size, sex, gonadal development stages, sampling site and habitat type (lotic, semi-lotic and lotic). Samplings were performed between June 2002 and August 2006 in points located in the upper Paraná River floodplain, Rosana Reservoir and Diamante Stream. The energy density from each muscle sample of 212 specimens was determined using an adiabatic calorimeter. The correlations between the variables 'muscle energy density' and 'specimen standard length' were not significant. Only in the Rosana Reservoir there was a significant difference in energetic means between 'sex'. Otherwise, due to the gonadal development stage, a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calorimetry; Detritivorous fish; Body size; Gonadal maturation; Habitat.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000200010

Behavior of prey links midwater and demersal piscivorous reef fishes
Provedor de dados: 83
Autores: Auster,Peter J.; Godfrey,Jeff; Watson,Anya; Paquette,Amy; McFall,Greg.
Pelagic and demersal guilds of piscivorous fishes are linked by a variety of biological and physical processes that mediate interactions with common prey species. Understanding the behaviors of predators and prey can provide insight into the conditions that make such linkages possible. Here we report on the behaviors of mid-water piscivorous fishes and the responses of prey that produce feeding opportunities for demersal piscivorous fishes associated with "live bottom" ledge habitats off the coast of Georgia (northwest Atlantic Ocean). Prey taxa reduced nearest neighbor distances and retreated towards the seafloor during predatory attacks by mid-water fishes. Demersal fishes subsequently attacked and consumed prey in these ephemeral high density patches....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Habitat; Reefs; Live bottom; Prey density.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000100014

Habitat of northern pikas (Ochotona hyperborea yesoensis) in the low altitude area at the southern tip of the Hidaka Mountains
Provedor de dados: 19
Autores: 家入, 明日美; 柳川, 久.
分布の南限かつ最も標高の低い地域における，エゾナキウサギ（Ochotona hyperborea yesoensis）の生息環境を明らかにするために，日高山脈襟裳国定公園内にある豊似湖周辺の岩塊地において2008年６月から11月に調査を行なった．プレイバック法を用いた個体確認調査により，本種の生息状況を判断した．当地域におけるエゾナキウサギの生息環境は，空隙数および岩塊数が多く，フッキソウ（Pachysandra terminalis）とミヤコザサ（Sasa nipponica）が少ない環境であった．
Palavras-chave: エゾナキウサギ; 日高山脈; 低標高域; 生息環境; Ochotona hyperborea yesoensis; Hidaka Mountains; Low altitude area; Habitat.
Ano: 2009
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2649

Ants as prey of the yezo brown bear ursus arctos yesoensis，with considerations on its feeding habit
Provedor de dados: 19
Autores: Onoyama, Keiichi; 小野山, 敬一.
Palavras-chave: Bear; Ant; Food preference; Habitat; Nest.
Ano: 1988
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1543

Estudio biométrico, estructura poblacional y habitat del camarón Penaeus vannamei, Boone en criaderos
Provedor de dados: 20
Autores: Reinoso, B.
The present work is about biometry study, population structure and habitat Penaeus vannamei, Boone shrimp cultivated in ponds 939 shrimps were analised from March-July 1991 at a shrimp farm located in Hebano-Manabí port. The analysis demostrated that a strong difference exists between the male and female shrimp product of morphological diformis in this species. Also, the calculated correlation coeficient values were always near the unit indicated for us that the relations between the different averages were very narrow. The proportion of the sexes showed a clear predominance of the females over the males. The proportions being 60%/40% respectively. Aside from this, this population distribution remained steady during the period of the investigation. The...
Tipo: Journal Contribution
Palavras-chave: Biometrics; Habitat; Population characteristics; Breeding; Crustacean culture; Length-weight relationships; Breeding; Crustacean culture; Http://aims.fao.org/aos/agrovoc/c_49902; Http://aims.fao.org/aos/agrovoc/c_1985.
Ano: 1993
URL: http://hdl.handle.net/1834/3048

Reef associated molluscan fauna of the Santa Marta Area, Caribbean Coast of Colombia
Provedor de dados: 20
Autores: Díaz, J.M.; Escobar, L.A.; Velásquez, L.E.
Se registra un total de 263 especies de moluscos (201 encontradas vivas) colectadas entre 1982 y 1989 en siete localidades arrecifales de la región de Santa-Marta, Colombia. Los moluscos fueron ordenados de acuerdo a las zonas de arrecife en que fueron encontradas, a sus hábitos alimentarios y a su modo de vida. El dendrograma resultante del análisis de similaridad faunística entre las zonas muestra que existen tres tipos básicos de comunidades en el arrecife (asentadas respectivamente en zonas someras, zona de declive arrecifal y zona con coral muerto y arena), más una comunidad pobre en especies y restringida a la zona dominada por el coral Agaricia tenuifo/ia. Existen algunas diferencias entre las zonas arrecifales en cuanto a la distribución porcentual...
Tipo: Journal Contribution
Palavras-chave: Malacology; Habitat; Geographical distribution; Interspecific relationships; Feeding behaviour; Population structure; Abundance; Malacology; Geographical distribution; Feeding behaviour; Population structure; Http://aims.fao.org/aos/agrovoc/c_4528; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_6115.
Ano: 1990
URL: http://hdl.handle.net/1834/3890

Estructura del manglar en el Delta exterior del Río Magdalena-Ciénaga Grande de Santa Marta, una zona tensionada por alteraciones del equilibrio hídrico
Provedor de dados: 20
Autores: Serrano-Díaz, L.A.; Botero, L.; Cardona, P.; Mancera-Pineda, J.E.
La estructura de los bosques de manglar del Delta Exterior del Río Magdalena-Ciénaga Grande de Santa Marta (DERM-CGSM) y algunas variables abióticas de sus suelos fueron cuantificadas con el objeto principal de proveer una línea de base para evaluaciones futuras de cambios en el ecosistema, como consecuencia de la reapertura de caños de agua dulce provenientes del Río Magdalena. Se encontró que los bosques que rodean el complejo lagunar exhiben diferentes grados de desarrollo estructural, desde casi ningún desarrollo (completamente muertos) hasta bosques complejos. El mejor desarrollo estructural se encontró en las estaciones localizadas sobre el Caño El Jobo (JOB) y sobre la Ciénaga de la Aguja (AGU) en la zona suroccidental del área de estudio. La...
Tipo: Journal Contribution
Palavras-chave: Coastal lagoons; Estuaries; Mangroves; Ecology; Population structure; Salinity effects; Lethal limits; Habitat; Redox potential; Condition factor; Redox potential; Estuaries; Ecology; Population structure; Coastal lagoons; Mangroves; Http://aims.fao.org/aos/agrovoc/c_6482; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_1697; Http://aims.fao.org/aos/agrovoc/c_16190.
Ano: 1995
URL: http://hdl.handle.net/1834/3814

La malacofauna de la zona costera de Santa Marta y Parque Nacional Natural Tayrona, Caribe colombiano
Provedor de dados: 20
Autores: Díaz, Juan M.
Con base en colectas intensivas y en la bibliografía existente se hizo un listado de las especies de moluscos conocidas de la región de Santa Marta y Parque Nacional Natural Tayrona con anotaciones sobre sus preferencias de sustrato y rango de profundidad. De un total de 727 especies, 485 son gastrópodos, 214 bivalvos, 13 poliplacóforos, 10 escafópodos y 5 cefalópodos. La mayor cantidad de especies se encuentra en fondos de arena con fanerógamas marinas y de rocas sueltas (cantos, bloques) en aguas someras. La gran cantidad de especies en esta región se explica por la concentración de variados biotopos y rangos de profundidad en áreas reducidas y por factores histórico-biogeográficos particulares de esta región.
Tipo: Journal Contribution
Palavras-chave: Depth; Malacology; Ecology; Habitat; Condition factor; Substrate preferences; Malacology; Ecology; Http://aims.fao.org/aos/agrovoc/c_4528; Http://aims.fao.org/aos/agrovoc/c_2467.
Ano: 1994
URL: http://hdl.handle.net/1834/3759

Characterizing and Comparing the Spawning Habitats of Sardine (Sardinops sagax) and Anchovy (Engraulis encrasicolus) in the Northern Benguela Region
Provedor de dados: 20
Autores: Tjizoo,Mbeurora Beau.
Spawning habitats of sardine and anchovy in eastern boundary current systems are characterized in an attempt to understand the fluctuations observed in their abundance. The northern Benguela, as an eastern boundary current system, is characterized by turbulent conditions that seem to govern the variability observed in the abundance of these species. Sardine and anchovy have developed mechanisms that enable them to maximize productivity. In the northern Benguela, spawning intensity is historically known to be high in periods and vicinities where turbulence is reduced. However, it is believed that selection of conditions for spawning by these species may change withfluctuations in abundance of fish.
Tipo: Theses and Dissertations
Palavras-chave: Sardine fisheries; Spawning; Anchovy fisheries; Habitat; Ecosystems; Sea surface temperature; Salinity; Spatial distribution; Climatic changes; Anthropogenic factors; Pelagic environment; Circulation; Coastlines.
Ano: 2008
URL: http://hdl.handle.net/1834/5231

Presencia de los octocorales Styla tula Diadema Bayer (Pennatulacea) y Carijoa riisei (Duchassaevg y Michelotti) (Telestacea) en la Costa Caribe colombiana
Provedor de dados: 20
Autores: Sanchéz-M., Juan M.
Con el fin de colectar octocorales telestáceos y penatuláceos se revisaron diferentes ecosistemas entre O y 30 m de profundidad, mediante buceo SCUBA y simple a pulmón que comprendían litorales rocosos, fondos arenosos y arrecifes coralinos, en un área que incluye a Cartagena, las Islas del Rosario, Tierra Bomba, Barú y San Bernardo, los bancos de Salmedina y Bushnell, las ensenadas de Zapzurro y Capurganá (8°20'-10°45' N; 75°50'-77025' W), en la región de Santa Marta (11°14'50" N; 74°15' W) y la Guajira (11°56'58" N; 72°16'18" W), en el Caribe colombiano. Se encontró por primera vez en el mar Caribe y la costa colombiana a Sfy/afu/a diadema Bayer (Virgulariidae: Pennatulacea) que se halló solamente en fondos arenosos blandos entre 25 y 30 m a la salida de...
Tipo: Journal Contribution
Palavras-chave: Rocky shores; Coral reefs; Habitat; Geographical distribution; Condition factor; Coral reefs; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_5083.
Ano: 1994
URL: http://hdl.handle.net/1834/3792

Juvenile penaeid shrimp density, spatial distribution and size composition in four adjacent habitats within a Mangrove-Fringed Bay on Inhaca Island, Mozambique
Provedor de dados: 20
Autores: Macia, A.
The effects of habitat characteristics (mangrove creek, sandflat, mudflat and seagrass meadow) water salinity, temperature, and depth on the density, spatial distribution and size distribution of juveniles of five commercially important penaied shrimp species (Metapenaus monoceros, M. stebbingi, Fenneropenaeus indicus, Penaeus japonicus and P. semisulcatus) were investigated during a high shrimp recruitment peak lasting from January to June 2002, in four contiguous habitats within a non-estuarine mangrove bay at Saco da Inhaca, Inhaca Island, Southern Mozambique. A total of 14,976 specimens representing the five species were collected by means of a 1m beam-trawl fitted with a 2 mm mesh net with a cod-end. Every two weeks corresponding with spring tides on...
Tipo: Journal Contribution
Palavras-chave: METAPENAUS MONOCEROS; FENNEROPENAEUS INDICUS; METAPENAEUS STEBBINGI; PENAEUS  SEMISULCATUS; MARSUPENAEUS JAPONICUS; Distribution; Habitat; Juveniles; Salinity; Shrimp culture; Penaeid shrimp fisheries; Mangrove swamps; Seagrass; Mud flats; Distribution; Juveniles; Salinity.
Ano: 2004
URL: http://hdl.handle.net/1834/1121

Contribución al conocimiento del género Voluta Linné, 1758 (Prosobranchia) en la costa del Caribe de Colombia
Provedor de dados: 20
Autores: Cosel, R.
Se describe la distribución y la ecología de las 2 especies del gen. Voluta Linné, 1758, V. Virescens y V. Musica, V. Virescens se encuentra entre Wounta Haulover, Nicaragua, y Taganga, es habitante de fondo suave y vive en fango, arena fina y arena con cal coralina, desde agua seca hasta más o menos 90 Mts. de profundidad. V. Musica se halla en la parte este y sur del mar caribe, y en Colombia va hacia el oeste hasta la ensenada de Chengue. Vive en arena coralina y calcárea y parece que evita arena mineral y fango. Su distribución vertical es desde agua seca hasta 30-40 mts. de profundidad. Ambas especies viven completamente enterradas y se alimentan de gasterópodos y otros invertebrados, además de carroña. Se describe y figura la radula de V. virescens....
Tipo: Journal Contribution
Palavras-chave: Marine molluscs; Marine organisms; Habitat.
Ano: 1976
URL: http://hdl.handle.net/1834/3287

Corales, formaciones arrecifales y blanqueamiento de 1987 en Bahía Portete (Guajira, Colombia)
Provedor de dados: 20
Autores: Solano-P., Oscar D.
Para el reconocimiento y caracterización de las formaciones arrecifales de Bahía Pórtete se visitaron un total de 22 estaciones entre junio de 1987 y enero de I988. Se registraron por primera vez Acropora cervicomis, Agaricia agaricites, Montastrea cavernosa, Diploría clivosa e Isophyllia sinuosa, elevando a 18 el número de especies de escleractinios de la bahía. El componente principal por su abundancia y diversidad de formas fue el hidrocoral Millepora alcicomis. Las formaciones arrecifales del área se concentran sobre los costados oeste y suroeste, sin llegar a constituirse en verdaderos arrecifes. Estructuralmente se discriminan dos tipos de formaciones: tipo 1 parches arrecifales y tipo 2 praderas de fanerógamas con colonias dispersas de M. alcicomis....
Tipo: Journal Contribution
Palavras-chave: Bleaching; Ecology; Geographical distribution; Habitat; Population structure; Population dynamics; Turbidity; Density; Species diversity; Ecology; Geographical distribution; Population structure; Turbidity; Bleaching; Population dynamics; Density; Species diversity; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_15043; Http://aims.fao.org/aos/agrovoc/c_953; Http://aims.fao.org/aos/agrovoc/c_6111; Http://aims.fao.org/aos/agrovoc/c_2186; Http://aims.fao.org/aos/agrovoc/c_33954.
Ano: 1994
URL: http://hdl.handle.net/1834/3782

Biología y distribución de la familia Aplysiidae (Babosas de mar), en la zona intermareal del Ecuador, desde el 2003 al 2005
Provedor de dados: 20
Autores: Cruz, M.; Hill, D.; Cortez, P.
El propósito de este trabajo es contribuir a conocer que especies de vaquitas o babosas de mar tenemos en la costa del Ecuador, cual es su abundancia, distribución, densidad, hábitat e importancia que tienen estas especies, dar a conocer sus características taxonómicas, que permitan ser identificadas por otros investigadores para que puedan desarrollar otros trabajos de investigación.
Tipo: Journal Contribution
Palavras-chave: Marine molluscs; Abundance; Habitat; Coastal zone; Geographical distribution; Intertidal environment; Organism morphology; Geographical distribution; Intertidal environment; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_3923.
Ano: 2007
URL: http://hdl.handle.net/1834/2347

Efecto del alga invasora Undaria pinnatifida sobre la comunidad de peces de arrecife en los golfos Norpatagónicos
Provedor de dados: 20
Autores: Irigoyen, A.J.
This study investigates the impact of Undaria pinnatifida on the reef  fish assemblage associated with the coastal rocky reefs of Golfo Nuevo in northern Patagonia, Argentina. Undaria pinnatifida is a laminarian kelp, indigenous to the temperate regions of Japan, China and Korea. It has spread around the world by international shipping and has also been introduced in some regions for mariculture. Its expansion into the northern Patagonian gulfs and Peninsula Valdes, a UNESCO Natural Heritage Site, may threaten eco-tourism activities that depend on local biodiversity and the esthetic quality of the ecosystem. In particular, there is concern about the impact of Undaria on a variety of recreational activities including diving, angling and spear fishing, which...
Tipo: Theses and Dissertations
Palavras-chave: Reef fish; Ecological associations; Introduced species; Habitat; Environmental impact; Environmental monitoring; Census; Undaria pinnatifida; Marine environment.
Ano: 2010
URL: http://hdl.handle.net/1834/4774

Modélisation de l’habitat des ressources halieutiques dans le golfe de Gabès et projections selon un scénario de changement global
Provedor de dados: 20
Autores: Hattab, T.; Ben Rais Lasram, F.; Sammari, Ch.
Le golfe de Gabès situé au sud-est de la Tunisie, est la région où l’activité de pêche est la plus développée du pays. L’intensité de cette activité a eu des conséquences négatives sur l’écosystème (diminution de la productivité, changements dans la composition spécifique des assemblages, recul du couvert végétal etc…) qui, par ailleurs, est le siège d’une pollution importante et où le changement global se fait de plus en plus ressentir. Il est maintenant démontré que le changement global ne peut pas être sans impact sur le fonctionnement des écosystèmes. Cependant, jusqu’à aujourd’hui, aucune étude n’a démontré d’une manière objective les modifications qui pourront avoir lieu dans l’écosystème du golfe de Gabès suite à ces changements. Ce travail a donc...
Tipo: Journal Contribution
Palavras-chave: Remote satellite sensing; Habitat; Marine resources; Habitats; GIS.
Ano: 2011
URL: http://hdl.handle.net/1834/4736

A new subterranean species of Phreatobius Goeldi, 1905 (Siluriformes, Incertae sedis) from the Southwestern Amazon basin
Provedor de dados: 84
Autores: Shibatta,Oscar Akio; Muriel-Cunha,Janice; Pinna,Mário C.C. de.
A new species of the previously monotypic catfish genus Phreatobius is described from an artificial well in the village of Rio Pardo, located 90 km south of the city of Porto Velho, State of Rondônia, Brazil, in the drainage area of the Rio Branco (Rio Madeira system, Amazon basin). Phreatobius dracunculus n. sp. differs from its only congener, P. cisternarum, by the absence of eyes (vs. present), the lack of dark integumentary pigmentation (vs. faint dark pigment always present), the presence of five pectoral-fin rays (vs. four), ventral procurrent rays 11-13 (vs. 22 to 26), dorsal procurrent rays 29-31 (vs. 42 to 50), fewer vertebrae (52 or 53 vs. 59 to 64) and the larger pseudotympanus. The new species shows all diagnostic characters so far proposed for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blind catfish; Subterranean fishes; Madeira basin; Habitat; Taxonomy.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492007001700001

Oligochaeta, Naididae of the West Indies and adjacent regions
Provedor de dados: 84
Autores: Righi,Gilberto; Hamoui,Viviane.
A very large collection of Naididae of the West Indies (153 localities), Suriname (15), Venezuela (2) and Florida (1) is studied. Five new species Nais barua, Dero scalariformis, D. tuna, Aulophorus kalina, A. barbatus are described. Dero magna, D. trifida, Aulophorus tridentatus, Allonais japonica, Pristina sima are redescribed. The 46 Naididae species of the West Indies are discussed by their taxonomy, distribution and habitat.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oligochaeta; Naididae; West Indies; Suriname; Venezuela; Florida; Taxonomy; Habitat; Distribution.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492002000600001

Fatores ambientais na distribuição de populações de Brachiaria subquadripara presentes no Reservatório de Barra Bonita-SP
Provedor de dados: 87
Autores: Domingos,V.D.; Martins,D.; Costa,N.V.; Marchi,S.R.
Este estudo teve como objetivos monitorar a distribuição de populações de Brachiaria subquadripara e caracterizar seu ambiente de ocorrência em duas épocas (seca e águas). As coletas foram realizadas em julho de 2004 e janeiro de 2005 em pontos previamente selecionados e georreferenciados, os quais se constituíram de 13 pontos no reservatório Barra Bonita (sete pontos no braço do rio Piracicaba e seis no braço do rio Tietê). Foram realizadas coletas de solo nas margens dos rios, sedimento, água e plantas. A distribuição em relação à área de infestação das populações de B. subquadripara observada na estação chuvosa foi influenciada pela variação sazonal, a qual ocorreu de forma heterogênea em relação à densidade populacional. O rio Tietê foi considerado um...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Braquiária; Habitat; Levantamento; Planta aquática; Planta daninha.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582011000100005

Optimising the spatial pattern of landscape revegetation
Provedor de dados: 31
Autores: Polyakov,   Maksym; Pannell,   David J.; Rowles,   Alexei; Park,   Geoff; Roberts,   Anna M.
The spatial pattern of landscape reconstruction makes a substantial difference to environmental outcomes. We develop a spatially explicit bio-economic model that optimises the reconstruction of a heavily cleared landscape through revegetation. The model determines the spatial priorities for revegetation that minimises economic costs subject to achieving particular improvements in habitat for 29 woodland-dependent bird species. The study focuses on the Avoca catchment (330 thousand ha) in North-Central Victoria. Our model incorporates spatial pattern and heterogeneity of existing and reconstructed vegetation types. The revegetation priorities are identified as being: sites in the vicinity of existing remnants, riparian areas, and parts of the landscape with...
Tipo: Conference Paper or Presentation
Palavras-chave: Landscape reconstruction; Biodiversity; Optimisation; Habitat; Environmental Economics and Policy; Land Economics/Use; Q57.
Ano: 2011
URL: http://purl.umn.edu/100697

Distribuição geográfica, ambiente preferencial e centros de diversidade dos membros da tribo Swartzieae na região sudeste do Brasil
Provedor de dados: 88
Autores: MANSANO,VIDAL DE FREITAS; TOZZI,ANA MARIA GOULART DE AZEVEDO.
A tribo Swartzieae pertence à subfamília Papilionoideae de Leguminosae e consiste do gênero tipo (com 143 espécies) e de outros 11 gêneros (com um total de cerca de 50 espécies), todos de regiões paleo ou neotropicais. O sudeste do Brasil possui uma considerável representatividade de espécies desta tribo, principalmente do gênero Zollernia, que compreende 70% do total de suas espécies ocorrentes nesta área. Os objetivos do presente trabalho são estudar a distribuição geográfica, o ambiente preferencial e localizar os centros de diversidade dos componentes de Swartzieae na região sudeste do Brasil. Para tanto foram obtidos dados de coletas próprias e os contidos nas etiquetas de material herborizado. Foi verificada a ocorrência de quatro gêneros, Bocoa na...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geographical distribution; Habitat; Centers of diversity; Swartzieae; Leguminosae Papilionoideae.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000500005

New occurrence and potential distribution of Anastrepha zacharyi (Diptera: Tephritidae) in the Eastern Amazon
Provedor de dados: 92
Autores: Soares,Jefferson Bruno Carvalho; Santos Junior,Cezário Ferreira dos; Miranda,Leonardo de Sousa; Godoy,Mauricio Sekiguchi de; Souza-Filho,Miguel Francisco de; Lemos,Walkymário de Paulo; Silva,Anderson Gonçalves da.
Abstract The species Anastrepha zacharyi Norrbom has recently been recorded in the Amazon, however the species is subsampling in the biome. In this research, we report a new occurrence of A. zacharyi in the state of Pará and, through climate suitability modelling, present new possible distribution areas of the species in the Brazilian eastern Amazon.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Habitat; Insect pest; Modeling; Fruit fly.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000100210

Trophic ecology and microhabitat utilization by the Bufo gargarizans, Rana guentheri, and Rana limnocharis in southwestern China
Provedor de dados: 103
Autores: Yu,Tonglei; Guo,Yanshu.
We studied the trophic ecology and microhabitat use of the Asiatic toad, Bufo gargarizans Cantor, 1842; Guentheri frog, Rana guentheri (Boulenger, 1882); and the Ricefield frog, Rana limnocharis (Boie, 1834). These three species are common around Nanchong City, in southwestern China, where they live in the same habitat before hibernation. The main objective of this study was to analyze the diets and patterns of coexistence relative to the microhabitat of each species. In the Asiatic toad, based on index of relative importance, the diet was dominated by adult Coleoptera, Isopoda, and Hymenoptera (29.53%, 22.07%, and 15.20%, respectively), while the Guenther's frog and Ricefield frog ingested predominantly Orthoptera (67.44% and 40.94%, respectively). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anuran; Asiatic toad; Diet; Guentheri frog; Habitat; Resource partitioning; Ricefield frog.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000100006

Responses of wild titi monkeys, Callicebus coimbrai (Primates: Platyrrhini: Pitheciidae), to the habituation process
Provedor de dados: 103
Autores: Souza-Alves,João Pedro; Ferrari,Stephen F.
Adequate habituation of free-ranging subjects is essential for any field study, but is generally unsystematic. Here, attempts to habituate three titi monkey (Callicebus coimbrai Kobayashi &amp;amp; Langguth, 1999) groups are described, and factors determining the effectiveness of the process are discussed. The "relentless pursuit" approach was aided by playback recordings of vocalizations but only one group was habituated adequately. Average contact in 13 encounters with group 1 was just over one minute, whereas in 32 encounters with group 2, it averaged 3,5 minutes (maximum = 22 minutes). Group 3 was more tolerant of observers, and was considered fully habituated by the seventh encounter. The factors determining this disparity remain unclear, although...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Behavior; Habitat; Habituation; Observation.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000600004

Responses of water mite assemblages (Acari) to environmental parameters at irrigated rice cultivation fields and native lakes
Provedor de dados: 103
Autores: Silva,Guilherme L. da; Metzelthin,Maicon H.; Da-Costa,Tairis; Rocha,Matheus S.; Silva,Darliane E.; Ferla,Noeli J.; Silva,Onilda S. da.
ABSTRACT Many studies have revealed that water mite communities can be affected by the physical and chemical parameters of the water. The similarity between the water ‘mite assemblages in local water bodies and in irrigated rice areas can be a way to measure the water conditions, enabling an assessment of the anthropic impact in the environment. The aim of this study was to evaluate the distribution of water mites in lakes and irrigated rice fields in south Brazil. To accomplish that we characterized the distinctive environments using physical and chemical variables such as pH, turbidity (NTU), water temperature (°C) and dissolved oxygen (mg/L), in order to verify the influence of these abiotic factors on the species composition of water mite communities;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coastal plain; Habitat; Physical and chemical variables; Rice field; Water mite.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702017000100320

Atol das Rocas: an oasis for Octopus insularis juveniles (Cephalopoda: Octopodidae)
Provedor de dados: 103
Autores: Bouth,Helena F; Leite,Tatiana S; Lima,Françoise D. de; Oliveira,Jorge E. Lins.
The habitat, population density, distribution and diet of Octopus insularis Leite &amp;amp; Haimovici, 2008 were studied in the Atol das Rocas Biological Reserve, based on visual census carried out in fixed quadrants. For each octopus den, we collected data on octopus size, substrate, type of den, and food remains around it. A total of 100 octopus dens were found within the fixed quadrants. The highest density occurred at Mapas area (0.30 inds/100 m²) and the lowest at Crista Algálica (0.07 inds/100 m²). The preferred den type was the one on the reef bed (69%), reinforcing the importance of rocky substrates for this species. A total of 454 food items, classified into 22 distinct taxa, were collected. The class Crustacea was best represented, accounting for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Habitat; Oceanic island; Octopus.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000100007

Persistence of Dromiciops gliroides in landscapes dominated by Pinus radiata plantations
Provedor de dados: 97
Autores: Uribe,Sandra V.; Chiappe,Romina G.; Estades,Cristián F.
Abstract  Background  Monitos del monte (Dromiciops gliroides) are old-growth forest specialists and, thus, believed to be very sensitive to habitat transformation, although some recent studies show some level of plasticity of their habitat selection patterns.  Findings  In this note we report on records of D. gliroides living in a very modified environment, composed mostly by industrial pine plantations and small fragments of Nothofagus spp. forests and we report the extension of the northernmost limit of its currently known distribution.  Conclusions  Although highly reliant on native vegetation, Dromiciops gliroides has been able to persist in industrial forest landscapes dominated by pine plantations.
Tipo: Journal article
Palavras-chave: Marsupial; Fragmentation; Conservation; Habitat; Transformation.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2017000100402

Status and conservation of the ruddy-headed goose Chloephaga rubidiceps Sclater (Aves, Anatidae) in its wintering grounds (Province of Buenos Aires, Argentina)
Provedor de dados: 97
Autores: BLANCO,DANIEL E; ZALBA,SERGIO M; BELENGUER,CAROLINA J; PUGNALI,GERMÁN; RODRÍGUEZ GOÑI,HERNÁN.
ABSTRACT The mainland population of the ruddy-headed goose (Chloephaga rubidiceps) breeds in southern Patagonia and winters in the south of Buenos Aires province (Argentina), with a recent estimated size at around 900 individuals. This population is considered "in danger of extinction", while the Malvinas (Falkland) Islands population is in well conservation status, with an estimated size of 40,000 birds. The aim of this work is to contribute with updated information about the ruddy-headed goose's population wintering in southern Buenos Aires province. The specific objectives were to better delimit its wintering area, to look for sites with large numbers, to study its habitat used, and to identify main threats to the species. Two intensive surveys were...
Tipo: Journal article
Palavras-chave: Ruddy-headed goose; Conservation; Management; Distribution; Habitat.
Ano: 2003
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2003000100005

Morphological characterization under different ecological habitats and physical mapping of 5S and 45S rDNA in Lilium distichum with fluorescence in situ hybridization
Provedor de dados: 97
Autores: Hwang,Yoon-Jung; Song,Chang-Min; Younis,Adnan; Kim,Chang-Kil; Kang,Yoon-Im; Lim,Ki-Byung.
BACKGROUND: This study was performed to investigate the phenotypic, karyomorphological, and habitat environment characteristics of Lilium distichum that grows naturally in South Korea. Currently, this species follows limited distribution areas and its natural populations are at the brink of extinction mainly due to fragmentation or destruction its natural habitat. RESULTS: This species was distributed between approximately 1,000 and 1,500 m above sea level with an average temperature of 22°C. The soil characteristics surrounding the natural habitats included loamy and silt loam soils having organic matter content (10.82%), pH (5.22), electrical conductivity (EC) (0.37 dS/m), total nitrogen (0.45%), and cation exchange capacity (34.3 cmol+/kg). The peak...
Tipo: Journal article
Palavras-chave: Chromosome; Karyotype; Habitat; Korea; 5S rDNA; 45S rDNA.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2015000100008

Riqueza de espécies e distribuição espacial e temporal em comunidade de anuros (Amphibia, Anura) em uma localidade de Tijucas do Sul, Paraná, Brasil
Provedor de dados: 104
Autores: Conte,Carlos E.; Machado,Reginaldo A.
O presente trabalho teve como objetivo fornecer dados ecológicos sobre a anurofauna da localidade de Lagoa (25º55'S, 49º11'W), Município de Tijucas do Sul, Paraná, Brasil. Dentro da área de estudo a vegetação é expressa por diminutos relictos de Floresta Ombrófila Mista primária alterada e formações antrópicas, sobretudo áreas de reflorestamento com Pinus sp. e pequenas áreas de terra ocupadas pela agricultura. Durante os meses de março de 2000 a março de 2001, foram coligidos dados sobre a distribuição espacial e temporal das espécies, bem como informações quanto à utilização do ambiente como sítio de vocalização. Foram registradas 23 espécies de anfíbios anuros. Nenhum anfíbio foi encontrado vocalizando durante os meses mais secos (abril e maio), porém...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biorritmo; Ecologia de anuros; Habitat; Organização de comunidades.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000400021

Análise preliminar das manifestações sonoras e do habitat de Picumnus nebulosus Sundevall (Aves, Picidae)
Provedor de dados: 104
Autores: Anjos,Luiz dos.
Observations and recordings of Picumnus nebulosus Sundevall, 1866 were carried out at Santa Rita farm (21º15'S, 50º00'), municipality of Palmeira, state of Paraná, southern Brazil, from 1984 to 1991. The song of this species (0.25 s to 0.64 s total time) is composed by a series of four to six high pitched (6.3 to 7.8 kHz) and short (0.03 to 0.05 s) notes (n=23). The fight call is a series of very short notes emitted between 2 to 8 kHz during 0.23 s to 0.32 s (n=34). The drum, a sequence of pulses, is emitted during 3.5 to 7.2 s (n=42); the four sequences in the begining are composed by four pulses and the rest by three pulses. P. nebulosus was more abundant in forest patches than in continuous forest. It was usually watched foraging in branches 1 to 4 mm...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Picumnus nebulosus; Sounds; Habitat; Abundance; Araucaria forest.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000200009

Biologia reprodutiva e ecologia de Aegla leptoaectyla Buckup &amp;amp; Rossi (Crustacea, Anomura, Aeglidae)
Provedor de dados: 104
Autores: Noro,Clarissa Köhler; Buckup,Ludwig.
The crustaeeans of Aeglidae family oeeur in South America's fresh water enviranments, featuring as important links in the food chains. The present article has the intention to give an acount of the results from investigations made from April/2000 to July/2001 on the biological and ecological features of Aegla leptodactyla Buckup &amp;amp; Rossi, 1977, an endemic species from the headwaters of the Rio Pelotas Basin in Rio Grande do Sul State, Brazil. The sampling was performed at the Rio da Divisa, tributary of Rio Pelotas, municipal district of São José dos Ausentes, Rio Grande do Sul. The animais were collected with a hand net (puçá) at four different sites of the river. High contents of dissolved oxygen was verified, with a medium value of 108% and alow...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aegla leptodactyla; Habitat; Reproduction; Recruitment.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000400011

Habitat use, fruit consumption, and population density of the black-headed night monkey, Aotus nigriceps, in southeastern Peru
Provedor de dados: 36
Autores: HELENBROOK,William. D.; WILKINSON,Madison L.; SUAREZ,Jessica A.
ABSTRACT The black-headed night monkey, Aotus nigriceps, has one of the largest distribution ranges of the 11 night monkey species found across Central and South America. Yet, only three studies have focused on their ecology, describing considerable variation in habitat, group composition, and population density. Therefore, we analyzed habitat use, group composition, population density, and diet of 14 groups at two field sites in southeastern Peru. All sampled groups were found in secondary tropical rainforest, often dominated by native bamboo species. Half of the observed sleeping sites were in bamboo stands, though groups also emerged from cane thickets and lianas. This contrasts with other Aotus studies which have found groups living in tree cavities...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Primates; Aotidae; Conservation; Owl monkey; Nocturnal; Habitat.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100037

Environmental structure affects taxonomic diversity but not functional structure of understory birds in the southwestern Brazilian Amazon
Provedor de dados: 36
Autores: OLIVEIRA,Jocieli de; ALMEIDA,Sara M.; FLORÊNCIO,Fernando P.; PINHO,João B.; OLIVEIRA,Dalci M. M.; LIGEIRO,Raphael; RODRIGUES,Domingos J.
ABSTRACT Changes in environmental characteristics can affect habitat use by birds, impacting the number of individuals, number of species, and changing species composition and functional structure of assemblages. Metrics that evaluate the functional structure of biological assemblages constitute a complementary tool to the traditional taxonomic approach, because they quantify the differences between species by means of functional traits. We assessed the effect of environmental characteristics on the taxonomic diversity (species richness, species composition and number of individuals) and functional structure (functional richness, functional evenness, Rao’s functional diversity, and community-weighted mean traits) of bird assemblages in northern Mato Grosso...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aves; Assemblage structure; Habitat; Functional richness.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000300232

Ocorrência e distribuição de pteridófitas na reserva florestal Walter Egler, Amazônia Central, Brasil
Provedor de dados: 36
Autores: Souza,Maria Cristina de; Guillaumet,Jean-Louis; Aguiar,Izonete de Jesus Araujo.
Na Reserva Florestal Walter Egler, localizada a 64 km de Manaus, no município de Rio Preto da Eva, foi investigada a ocorrência de Pteridófitas ao longo de uma toposseqüência. O grupo ocorre nos três ambientes observados na área (baixio, vertente e platô) com diferença tanto qualitativa quanto quantitativa. Foram registrados 375 indivíduos, distribuídos em oito famílias, 10 gêneros e 17 espécies; entre epífitas, hemiepífitas, herbáceas e arbóreas. Das 8 famílias, 4 ocorrem em todos os ambientes: Dennstaedtiaceae, Hymenophyllaceae, Dryopteridaceae e Lomariopsidaceae, enquanto, Cyatheaceae e Vittariaceae ocorrem apenas no baixio. Das 17 espécies encontradas, sete ocorrem apenas no baixio, três na vertente e cinco são comuns em todos os ambientes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pteridófitas; Sub-bosque; Habitat; Hábito.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672003000400003

Quinolizidine alkaloids in Calia secundiflora (FABACEAE)
Provedor de dados: 115
Autores: García-Mateos,Rosario; Soto-Hernández,Marcos; Zavala-Chávez,Fernando; Kite,Geofrey.
Abstract The purpose of this study was to compare the alkaloid profile in different tissues analyzed by GC/MS and to contribute to the ecological knowledge of Calia secundiflora (patol). Samples of leaves, root and seeds of patol (mescal bean) were collected and field information was recorded in the States of Hidalgo and Querétaro, México, using the point-centered quarted method. Species dominance was calculated (value of importance) and the two locations were compared in species richness, similarity index, and soil data. Seventeen species of plants were found in Hidalgo and 21 in Querétaro; Flourensia resinosa and patol dominated the vegetation in Hidalgo, while patol and Dodonaea viscosa dominated in Querétaro. The profile of the quinolizidine alkaloids...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dodonaea viscosa; Flourensia resinosa; Ecology; Fabaceae; Habitat; Toxicity.
Ano: 2007
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952007000200161

Testing arbitrary classes of light in a physiognomically heterogeneous area of "campo rupestre" vegetation
Provedor de dados: 42
Autores: MOREIRA,ANA S.F.P.; BORBA,EDUARDO L.; LEMOS-FILHO,JOSE P.
The Brazilian "campo rupestre" vegetation shows high light heterogeneity, characteristic which is often disregarded in ecophysiological studies due the difficult of obtaining accurate measurements in a complex environment. The aim of the present study it was to describe how much heterogeneous is the light distribution in this environment, as well as tried to define classes in relation to the photosynthetically active radiation (PAR) for 30 rupicolous individuals of Bulbophyllum involutum. The individuals were marked and previously classified in light classes visually predetermined ("full sun", "partially shaded" and "shaded"). Once defined these classes, principal component analysis, cluster and dispersal analyses using direct and indirect PAR measures...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bulbophyllum involutum; Habitat; Light heterogeneity; Multivariate analysis; Orchidaceae; Rocky outcrops.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200635

Composition of functional ecological guilds of the fish fauna of the internal sector of the Amazon Estuary, Pará, Brazil
Provedor de dados: 42
Autores: MOURÃO,KEILA R.M.; FERREIRA,VALDIMERE; LUCENA-FRÉDOU,FLÁVIA.
The present study describes the spatial and temporal structure of the estuarine fish community in the internal sector of the Amazon Estuary. Samples were obtained in the main channels and tidal creeks of Guajará and Marajó Bays and Guamá River. A total of 41,516 fish specimens were collected, representing 136 taxa, 38 families and 12 orders. In the dry season, the mean salinity of the main channel increased along a limnic-marine gradient, between the Guamá River and the Marajó Bay. Species richness was lowest in the mouth of the Guamá River and in the right margin of the Guajará Bay. Fish species composition and environmental guilds differed markedly among areas: Migrants and Freshwater Stragglers were dominant in the Guamá River and the Guajará Bay, while...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estuaries; Fish diversity; Functional ecology; Habitat; Salinity gradients.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000401783

Use of intertidal areas by shrimps (Decapoda) in a brazilian Amazon estuary
Provedor de dados: 42
Autores: SAMPAIO,HEBERT A.; MARTINELLI-LEMOS,JUSSARA M.
The present work investigated the occupation and the correlation of the shrimp abundance in relation to environmental variables in different habitats (mangroves, salt marshes and rocky outcrops) in an Amazon estuary. The collections were made in August and November 2009, at low syzygy tide on Areuá Beach, situated in the Extractive Reserve of Mãe Grande de Curuçá, Pará, Brazil totaling 20 pools. In each environment, we recorded the physical-chemical factors (pH, salinity, and temperature) and measured the area (m2) and volume (m3) of every pool through bathymetry. The average pH, salinity, temperature, area and volume of tide pools were 8.75 (± 0.8 standard deviation), 35.45 (± 3), 29.49 °C (± 2.32), 27.41 m2 (± 41.18), and 5.19 m3(± 8.01), respectively....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Habitat; Density; Biomass; Decapoda.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100333

Electroretinography in eight species of neotropical deer
Provedor de dados: 45
Autores: Crivelaro,R.M.; Thiesen,R.; Aldrovani,M.; Lima,T.B.; Ortêncio,K.P.; Padua,I.R.M.; Duarte,J.M.B.; Laus,J.L.
ABSTRACT The aim of this study was to establish normal baseline ERG values of 23 anesthetized deer belonging to 8 neotropical species (Mazama americana, Mazama nemorivaga, Mazama gouazoubira, Mazama nana, Mazama bororo, Ozotocerus bezoarticus, Odocoileus virginianus and Blastocerus dichotomus). Only right eyes were studied. Chemical restraint was performed using xylazine associated with ketamine, IM, for M. americana, M. gouazoubira, M. nemorivaga, M. nana, M. bororo, O. bezoarticus and O. virginianus. A combination of tiletamine/zolazepam diluted in xylazine 2% was used for B. dichotomus individuals. After 20min of dark adaptation, electroretinograms were obtained using a handheld electroretinography (ERG) machine using the QuickRetCheck Protocol at three...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cervidae; Habitat; Retina; Wild animal; ERG.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000501505

O primeiro registro de Sinningia gigantifolia Chautems (Gesneriaceae) no estado de São Paulo
Provedor de dados: 49
Autores: Arzolla,Frederico Alexandre Roccia Dal Pozzo; Paula,Gláucia Cortez Ramos de; Chautems,Alain Philippe; Shepherd,George John.
Sinningia gigantifolia Chautems é uma espécie rupícola restrita à Serra da Mantiqueira e partes altas da Serra do Mar, que ocorre principalmente em formações florestais. O presente trabalho apresenta o primeiro registro desta espécie para o Estado de São Paulo, na Serra do Baú, em São Bento do Sapucaí. Uma descrição completa da espécie, uma análise da sua distribuição e uma alteração na chave de identificação do gênero Sinningia da Flora Fanerogâmica do Estado de São Paulo são fornecidas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flora do Estado de São Paulo; Serra da Mantiqueira; Serra do Baú; Espécie rupícola; Habitat; Chave de identificação.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000300040

What do we know about Anisotremus moricandi (Teleostei: Haemulidae), an endangered reef fish?
Provedor de dados: 49
Autores: Dias,Thelma Lúcia Pereira.
This article provides general information on habitat, behavior, and conservation status of Anisotremus moricandi and reinforces its distribution to the western Atlantic. The species inhabits rocky reefs with low coralline overgrowth and it is found in reef crevices in small groups or solitary individuals. The distribution of A. moricandi seems to be discontinuous occurring in the coasts of Panama (Caribbean side), Aruba, Colombia, Orchila Island (Venezuela) and in Brazil (from Ceará State to Espírito Santo State).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coastal reefs; Distribution; Habitat; Conservation; Behavior; Northeastern Brazil.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000200037

Occupancy of different types of forest habitats by tyrant flycatchers (Passeriformes: Tyrannidae)
Provedor de dados: 49
Autores: Rosa,Gabriel Lima Medina; Anjos,Luiz dos; Moura,Maurício Osvaldo.
The abundance distribution of the tyrant flycatchers (Tyrannidae family) was evaluated in three main forest habitats of Mata dos Godoy State Park (PEMG), north of the state of Paraná. We conducted point counts and from the collected data we calculated the Index of Point Abundance (I. P. A.) of each species in the habitats of interior of mature forest (FLI), slope forest (FLE) and reforestation (REF). Among the 22 recorded species, eight occurred in all habitats, while other eight occurred in two habitats and six were exclusive of one habitat. Among the 16 recorded species in more than one habitat, 10 were more abundant in only one. On the contrary to our expectation and despite the clear habitat segregation among species, the abundance distribution was not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Habitat; Foraging; Abundance; Distribution; Frugivory.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000400190

Courtship, vocalization, and tadpole description of Epipedobates flavopictus (Anura: Dendrobatidae) in southern Goiás, Brazil
Provedor de dados: 49
Autores: Costa,Ronan Caldeira; Facure,Kátia Gomes; Giaretta,Ariovaldo Antonio.
Epipedobates flavopictus is a diurnal, aposematic dendrobatid with a wide distribution in seasonal wet tropical regions of Brazil. We describe the daily period of vocalization, advertisement call, courtship behavior, and tadpole of E. flavopictus from a previously unknown population in southern Goiás and compare theses features with that of other populations. Studies were carried out in November (2004) and February (2005). We counted the number of calling males and duration of calling bouts in the morning and evening periods. The advertisement call was recorded with a digital recorder. Tadpole description was based on specimens collected in pools. Males called from well-illuminated sites such as rocky fields, rain channels, and borders of riverine forests....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Populational variation; Brazilian Cerrado; Habitat; Pattern of activity; Behavior; Reproduction; Advertisement call.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032006000100006

Morphological patterns of fish and their relationships with reservoirs hydrodynamics
Provedor de dados: 52
Autores: Cunico,Almir Manoel; Agostinho,Angelo Antonio.
The aim of this study was to determine morphological patterns of the most abundant fish species found in reservoirs with different hydraulic retention times and stages of colonization, considering habitat strata and feeding strategies. Samplings were carried out in six Paraná State (Brazil) reservoirs, and morphological data were obtained from 15 individuals of 17 fish species. Ecomorphological attributes that best segregated species, were selected using Discriminant Analysis. These selected attributes were later used in a Principal Components Analysis (PCA). Differences among reservoirs concerning occupation of the ecomorphological space were tested through analysis of variance (null models). The six reservoirs differed in the occupation of the fish...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecomorphology; Feeding strategies; Habitat; Reservoir.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000100015

Planktonic and non-planktonic rotifers in two environments of the Upper Paraná River floodplain, state of Mato Grosso do Sul, Brazil
Provedor de dados: 52
Autores: Bonecker,Cláudia C.; Lansac-Tôha,Fábio A.; Rossa,Dayane C.
Investigations were carried out for the composition and occurrence of rotifer taxa of different forms and sizes during two distinct hydrological periods, in two environments (river and lake). Two sampling stations were established in open water of each environments. Surface samples were taken daily for 14 days. The faunistic similarity between the environments was established using Jaccard's index. One hundred and fourty three taxa were identified. The largest number of taxa was recorded in the river. Faunistic similarity between these environments was greater during high water. The planktonic taxa predominated and the difference for the non-planktonic ones was not marked. Non-planktonic taxa predominated in the river, while both types were numerous in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rotifers; Size classes; Habitat; Floodplain; Brazil.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000400009

Effects of natural and anthropogenic environmental changes on riverine fish assemblages: a framework for ecological assessment of rivers
Provedor de dados: 52
Autores: Tejerina-Garro,Francisco Leonardo; Maldonado,Mabel; Ibañez,Carla; Pont,Didier; Roset,Nicolas; Oberdorff,Thierry.
Freshwater is a basic need for the mankind. Effective biological tools (ecologically based, efficient, rapid and consistently applicable to different ecological regions) are needed to measure the "health" of rivers. Adapting such tools over a broad geographic area requires a detailed understanding of both the patterns of organisms assemblage composition and distribution within and among water bodies under natural conditions, and the nature of the major environmental gradients that cause or explain these patterns. A comprehensive review of the available litterature dealing with the identification of environmental factors structuring riverine fish assemblages under natural conditions permits to identify the most consistent ones.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological indices; Fish community; Environmental parameters; Habitat.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000100013

Occurrence of entomopathogenic nematodes in Polish soils
Provedor de dados: 65
Autores: Tumialis,Dorota; Pezowicz,Elżbieta; Skrzecz,Iwona; Mazurkiewicz,Anna; Maszewska,Justyna; Pietraszczyk,Joanna Jarmuł; Kucharska,Kornelia.
ABSTRACT: Entomopathogenic nematodes ( Steinernematidaeand  Heterorhabditidae) were studied in Polish soils according to the: season, habitat and altitude. In total, 167 soil samples were taken from 111 localities in Poland along north-south transect. Entomopathogenic nematodes were isolated from 53 soil samples (31.7%). Nematodes species were identified genetically from 16 samples, and in all other 37 samples nematodes were determined to the genus level. Three species of the genus Steinernema ( Steinernema kraussei, S. feltiae, S. carpocapsae) and one of the genus Heterorhabditis( Heterorhabditis megidis) were recorded.  Steinernema feltiaewas the most common species. There was not a significant association between the occurrence of nematodes and season...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Distribution; Steinernema; Heterorhabditis; Poland; Season; Habitat.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701126