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| Registros recuperados: 37 | |
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| MENIN,Marcelo; FERREIRA,Rafaela Fernanda Batista; MELO,Izomar Barbosa; GORDO,Marcelo; HATTORI,Gustavo Yomar; SANT’ANNA,Bruno Sampaio. |
| ABSTRACT Few studies in the Amazon region have evaluated anuran diversity in urban forest fragments or in areas with differing degrees of anthropogenic impact. We determined the composition and abundance of the anurofauna in urban and rural sites within the municipality of Itacoatiara in central Amazonia, Brazil. Specimens were sampled from January 2012 to May 2013 in 10 urban sites and five rural sites. A total of 1,538 anurans (930 in rural sites and 608 in urban sites) were recorded, belonging to 29 species in five families. Species richness was higher in rural sites, with 10 exclusive species. All species found in urban sites were also found in rural sites, however, species abundance varied considerably between the habitats. Sampling- and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Floodplain forests; Unflooded forest; Rarefaction curves; Species composition; Time-constrained searches. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000200122 |
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| Paraluppi,Norival D. |
| Calliphoridae of the region of the upper Urucu river basin, West of the city of Manaus, Amazonas State, Brazil, were sludied considering composition and abundance of the species, capturing 14729 specimen distributcd as follows: Cochliomyia macellaria (Fabricius) (12643), Chloroprocta idioidea (Robineau-Desvoidy) (1667), Phaenicia eximia (Wiedemann) (354), Hemilucilia semidiaphana (Rondani) (54), H. segmentaria (Fabricius) (6), Chrysomya pularia (Wiedemann) (1) e C. albiceps (Wiedemann) (1). The rcsults showthat Cochliomyia macellaria has a facility to adapt rapidly to an environment changed by man. The fact that was registered two specimen of Chrysomya Robineau-Desvoidy in highly isolated localilies contributed to showthc ability of thesc flics in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calliphoridae; Central Amazônia; Invader species; Species composition. |
| Ano: 1996 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300003 |
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| Mariluis,Juan C.; Schnack,Juan A.; Mulieri,Pablo P.; Patitucci,Luciano D.. |
| Species composition, relative abundance, sex ratio and habitat preference of blowflies (Diptera: Calliphoridae) from Caleta Olivia, Puerto Deseado, and Puerto San Julián (Santa Cruz Province, Argentina) were studied during late spring and summer in 2004-2005. Results showed a higher prevalence of the exotic species, Calliphora vicina (Robineau-Desvoidy) and Phaenicia sericata (Meigen) at urban sites over the natives, Compsomyops fulvicrura (Robineau-Desvoidy) and Sarconesia chlorogaster (Wiedemann), which shows a strong preference for those sampling sites either not inhabited or less influenced by human activities. Sex ratio was female biased for all species, except for Sarconesia chlorogaster, which exhibited a male prevalence over females. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calliphoridae; Species composition; Relative abundance; Synanthropy; Southeastern Patagonia. |
| Ano: 2008 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802008000100010 |
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| Hasegawa,Motohiro; Fukuyama,Kenji; Makino,Shun'ichi; Okochi,Isamu; Tanaka,Hiroshi; Okabe,Kimiko; Goto,Hideaki; Mizoguchi,Takeo; Sakata,Tadashi. |
| Collembolan communities in conifer plantations (Japanese cedar, Cryptomeria japonica) and secondary deciduous broad-leaved forests of varying ages were investigated to determine the extent to which forest conversion (broad-leaved to coniferous) affects the species richness and assemblage composition of Collembola in central Japan. Density and total species richness of Collembola not differed between the broad-leaved and cedar forests except immediately after clear-cutting. The amount of forest-floor organic matter was larger in cedar forests and positively correlated with the species richness of detritus feeders. Species richness of fungal feeders and sucking feeders positively correlated with the species richness of forest-floor plants. There was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Japanese cedar; Species composition; Feeding habit; Undergrowth. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800012 |
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| Elías, E; Calderón, G.; Luzuriaga, G.; Chavarría, J.. |
| Entre el 04 y 13 de septiembre de 2007, se realizó el crucero T07-09-04HL, para determinar la composición de huevos y larvas de peces en la zona marine costera de la costa ecuatoriana. El área de estudio se subdividió en cuatro subáreas, dentro de las cuales se ubicaron 157 estaciones donde se realizaron arrastres verticales utilizando una red CalVET. Se registro un total de 15 940 huevos de peces.m-2, correspondientes a 11 órdenes, 19 familias, 18 géneros, 18 especies y además huevos en su primer estadio embrionario. También se identificaron 23 140 larvas.m-2, que correspondieron a 12 órdenes, 32 familias, 45 géneros, 45 especies, y organismos en estado de prelarva. La distribución de las áreas de abundancia de huevos y larvas de peces determine zonas de... |
| Tipo: Journal Contribution |
Palavras-chave: Fish eggs; Fish larvae; Species composition; Spatial distribution; Ichthyoplankton. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/4835 |
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| Marandel, Florianne; Lorance, Pascal; Trenkel, Verena. |
| Sustainable fisheries management requires assessment of exploited populations and communities. Traditional fisheries stock assessment methods need species‐specific input data, which for skates have only recently become available in Europe. To overcome this limitation, a Bayesian multispecies biomass production model was developed. In addition to aggregated landings, input data are short time series with species‐specific information (landings and biomass indices). Applying the approach to four main skate species and a group of two skate species, all managed together in the Bay of Biscay (Northeast Atlantic), long‐term changes in the skate assemblage composition were identified. Since the 1990s, Leucoraja naevus became increasingly dominant, while the... |
| Tipo: Text |
Palavras-chave: Community changes; Fishing impacts; Multispecies management; Multispecies model; Rajiformes; Species composition; Vulnerable skates. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00589/70088/68138.pdf |
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| LOURIDO,Gilcélia Melo; MOTTA,Catarina da Silva; GRAÇA,Márlon Breno; RAFAEL,José Albertino. |
| ABSTRACT Sphingidae attracted to light were systematically collected in an Amazonian forest canopy. Sampling occurred at a height of 34 m in an upland primary rainforest plateau in the Cueiras River basin, located within the Experimental Station of Tropical Silviculture, Manaus municipality, Amazonas, Brazil. The hawkmoths were collected using a vertical white sheet illuminated by a 250 W mixed mercury light and a 20 W black-light (BLB) fluorescent tube. Monthly collections were carried out from January to December 2004, during three nights of lunar transition from third quarter moon to new moon between 6 p.m. and 6 a.m. We sampled 1748 specimens, represented by 1485 males and 263 females, belonging to 52 species and 21 genera. Xylophanes comprised the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon rainforest; Flight activity; Forest canopy; Species composition; Species richness. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000200117 |
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| Lenza,Eddie; Abadia,Ana Clara; Menegat,Hélio; Lúcio,Nadjarriny W.; Maracahipes-Santos,Leonardo; Mews,Henrique A.; Santos,Josias O. dos; Martins,Jhany. |
| ABSTRACT We surveyed two savanna sites, one on flat terrain with deep soil (DS), and the other on hilly terrain with rocky outcrops and shallow soil (RS), before and after an accidental fire. We found that the fire did not cause any significant changes in the species composition or diversity of either community, and did not result in floristic homogenization. However, we did record a reduction in the density of plants and in basal area in the DS savanna in comparison with the RS savanna, as well as a higher rate of basal sprouting, which indicates a trade-off between mortality and sprouting. We conclude that, whereas post-fire changes in vegetation structure were more pronounced in the DS savanna than in the RS, the difference in the underlying substrate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diversity; Fire; Fuel; Savanna; Species composition. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000200250 |
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| Santa-Brígida,Rosângela; Schmitz,Hermes José; Martins,Marlúcia Bonifácio. |
| Abstract This list contains information on the Drosophilidae that occur in the Brazilian state of Pará, Amazon biome, and an analysis of the current knowledge of Drosophilidae based on museum material and literature records. This list includes a detailed account of the material deposited in the entomological collections of the Museu Paraense Emílio Goeldi and Museu de Zoologia da Universidade de São Paulo, up to 2015. In total, 122 species of Drosophilidae were registered, including 27 new records for the state of Pará and 22 are new records for the Amazon; for instance, the genera Diathoneura and Rhinoleucophenga, and three new records for Brazil, (Drosophila fasciola, Diathoneura flavolineata and Drosophila neochracea). The state of Pará is the third... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Species composition; Amazon; Diathoneura; Rhinoleucophenga. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000100204 |
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| Sajjad Haider,Muhammad; Maclaurin,Angus; Ali Chaudhry,Amjad; Mushtaque,Muhammad; Ullah,Sami. |
| Grazing management of rangeland systems has not been well researched in Pakistan; grazing system the most sustainable is not known. In order to evaluate various grazing systems, a study was performed at Pabbi Hills Reserve Forest, Kharian, Punjab. Four simulated grazing treatments, viz. ungrazed control, continuous grazing, seasonal deferred grazing, and rotational deferred grazing, were tested in a randomized complete block design with four replicates. Response variables included species composition, fresh herbage yield, dry herbage yield of grasses and forbs, basal cover, and ground cover. Of the three grazing systems, the six-month seasonal deferred grazing system resulted in a marked increase in basal cover, but had no changes in relative species... |
| Tipo: Journal article |
Palavras-chave: Sustainable rangeland system; Basal cover; Species composition; Herbage production; Ground cover; Six-month seasonal deferred grazing system. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000400010 |
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| Leite,Amanda Barreto Xavier; Menezes,Aline Anjos de; Souto,Leandro de Sousa; Aptroot,André; Lücking,Robert; Santos,Viviane Monique dos; Cáceres,Marcela Eugenia da Silva. |
| The present study tested the hypothesis that species richness and composition of epiphytic microlichens can be used to support the phytosociological differentiation between Caatinga and Brejos de Altitude, as exemplified by the Muralha Reserve (Caatinga) and the Parque Estadual Mata do Pau Ferro (Brejo de Altitude), in the state of Paraíba, Brazil. A total of 755 lichen samples were collected, comprising 18 families, 42 genera and 111 species of epiphytic, corticolous microlichens. Overall species richness was higher in the Caatinga, with 67 species, compared to the Brejo, with 46 species. Species richness per sample was significantly higher in the Caatinga compared to the Brejo. Taxonomic composition also differed significantly between the two areas, with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Corticolous microlichens; Mata Pau-Ferro; Reserva Muralha; Species composition; Species richness. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000400457 |
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| Casatti,Lilian; Teresa,Fabrício Barreto; Gonçalves-Souza,Thiago; Bessa,Eduardo; Manzotti,Angelo Rodrigo; Gonçalves,Cristina da Silva; Zeni,Jaquelini de Oliveira. |
| The aim of this study was to verify whether taxonomic and functional composition of stream fishes vary under three different preservation conditions of riparian zone: preserved (PRE), intermediate condition (INT), and degraded (DEG). Five stream stretches representing each condition were selected. Samples were taken from each stream in three occasions during the dry seasons from 2004 to 2007. Electro fishing (PRE and INT), sieves, dip nets, and hand seines (DEG) were used according to the characteristics of each sampled site. Overall, 46 species were registered. Differences in the taxonomic and functional species composition among groups were found, following the condition of riparian zones. The ichthyofauna recorded in the PRE was typical to pristine... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biotic homogenization; CWM analysis; Functional composition; Riparian forest; Species composition. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000100020 |
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| Mendonça Jr,Milton De S; Piccardi,Hosana M F; Jahnke,Simone M; Dalbem,Ricardo V. |
| Galling arthropods create plant structures inside which they find shelter. Factors acting on galler diversity are still being discussed, with this fauna considered more diverse in xeric than mesic environments (higrothermic stress hypothesis, HSH), and also in more plant diverse sites. Here we compare galler abundance (N), equitability (E), species richness (S) and composition between adjacent restinga (xeric) and swamp forests (mesic) in Parque Estadual de Itapeva (29°21' S, 49°45' W), Rio Grande do Sul, southern Brazil. Five trails, two in swamp forest and three in restingas, were sampled four times each (January/December 2005). After an effort of 60h/person, 621 galled plant individuals belonging to 104 gall morphotypes were recorded. This suggests a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hygrothermic stress; Gall; Species composition; Species richness. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000400008 |
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| Rocha,Ednaldo Cândido; Silva,Jhefferson; Silva,Pablo Timóteo da; Araújo,Márcio da Silva; Castro,André Luis da Silva. |
| Abstract: The reduction and fragmentation of remnant vegetation habitats has been one of the main threats to Cerrado biodiversity. The aim of the present study is to make an inventory of medium and large mammal species in a Cerrado remnant and to assess deforestation influence on part of this fragment on the richness and composition of mammal species. The study was conducted in a Cerrado fragment in southeast Goias State, Ipameri County. Data were collected during three different periods (P1, January-June, 2014; P2, December, 2016 - June, 2017; P3, July-December, 2017) through direct (visual, vocal and camera-trap records) and indirect methods (foot prints, animal burrows and other traces) in order to register the mammal species. Jackknife 1 estimator was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mammal fauna; Wildlife survey; Species composition; Fragmentation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000300309 |
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| MENESES,ISABEL; SANTELICES,BERNABE. |
| According to biogeographic studies made two decades ago, marine benthic algal species of the Pacific temperate coast of South America could be grouped into five components according to their geographic affinities. Each of these components was distributed differentially along the coastline between 4º and 56ºS and thus, their contribution to the overall flora varied depending on the latitude. Species composition changed at specific latitudes in such a way that three groups could be observed: from 4 to 6ºS, from 6 to 30ºS and from 30 to 55ºS. Since 1980, new information on marine algae along this coastline allows a review of the previous phytogeographic characterization. The presence/absence of algal species, separated by division and geographic affinity, was... |
| Tipo: Journal article |
Palavras-chave: Distribution patterns; Breaking points; Species composition; Temperate Pacific. |
| Ano: 2000 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400006 |
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| Registros recuperados: 37 | |
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