Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 67
Primeira ... 1234 ... Última
Imagem não selecionada

Imprime registro no formato completo
Aphididae (Hemiptera) on ornamental plants in Córdoba (Argentina) Rev. Soc. Entomol. Argent.
Szpeiner,Alfonsina.
In 30 surveys across Cordoba city and surroundings (Argentina) I recorded, from November 2001 to May 2002, a total of 109 ornamental plants infested with aphid colonies. Surveys were conducted in the local botanical garden as well as homestead gardens and nurseries. Seventeen species of aphids were identified, 4 of which are new species in the area, from 47 ornamental plants. In a total of 59 plant/aphid associations, 38 new associations were found. I present the first record of aphids colonizing Cactaceae in Argentina. Most aphid colonies were medium and a high proportion (more than 40%) showed alate individuals. The most frequent aphid species, Aphis gossypii Glover and Aphis craccivora Koch were especially associated with the most frequent damages:...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aphids; Ornamental plants; Richness; Damages; Urban areas.
Ano: 2008 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802008000100006
Imagem não selecionada

Imprime registro no formato completo
Assessment of fish assemblages in streams of different orders in the Upper Paraná River basin, Central Brazil Iheringia, Sér. Zool.
Vieira,Thiago B.; Tejerina-Garro,Francisco L..
The aim of this study was to test whether the richness observed and the biomass per trophic group of fish assemblages vary depending on the order (1st and 2nd) of the streams located in three different basins of the Upper Paraná River Basin, Central Brazil. Samples were collected between April and September, 2009, in 27 streams of the Meia Ponte, Piracanjuba and Santa Maria River basins. A total of 4,879 specimens were collected distributed in 59 species and 19 families. The statistical analyses carried out indicate that the observed richness and biomass of omnivore fish were influenced by the interaction of two factors: stream order and basin. The 2nd order streams located in the Santa Maria basin presented significant differences in the observed richness...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Trophic guilds; Omnivores; Richness; Biomass.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212014000200007
Imagem não selecionada

Imprime registro no formato completo
Avifauna en bosques manejados de Pinus patula en la Mojonera, Zacualtipán, Hidalgo Colegio de Postgraduados
Chi Poot, Roger Antonio.
El presente trabajo se realizó en La Mojonera, Zacualtipán, Hidalgo, con la finalidad de determinar el efecto del manejo del bosque de Pinus patula sobre la riqueza de avifauna, durante la transición invierno-primavera 2004-2005. Se definieron tres condiciones del bosque de acuerdo a su historial de manejo. La Condición Uno (C1) pertenece a un bosque no intervenido por el proceso de corta (bosque natural); la Condición Dos (C2) estuvo constituida por rodales mayores a 12 años; y la Condición Tres (C3) por rodales menores de 12 años de edad. Para el muestreo de la vegetación, se establecieron 21 parcelas de 400 m2 (20X20m). En cada parcela se etiquetaron todos los individuos de especies arbóreas con DAP≥2 cm. Se identificaron, se registró su DAP, altura,...
Tipo: Tesis Palavras-chave: Manejo del bosque; Avifauna; Abundancia; Riqueza; Maestría; Forestal; Forest management; Avian communities; Abundance; Richness.
Ano: 2007 URL: http://hdl.handle.net/10521/1549
Imagem não selecionada

Imprime registro no formato completo
Bancos de sementes do solo em pastagens na Amazônia Central. Repositório Alice
COSTA, J. R.; MITJA, D.; LEAL FILHO, N..
Este estudo investigou os bancos de sementes em pastagens implantadas na região de Manaus (Amazonas, Amazônia Central). Em quatro pastagens, foram coletadas 20 amostras de solo de 15 x 15 cm na profundidade de 0 cm a 5 cm e 6 amostras nas profundidades de 5 cm a 10 cm e 10 a 30 cm. Para a contagem e identificação das sementes utilizou-se o método de emergência de plântulas em casa de vegetação. As plântulas foram identificadas por morfotipo e, quando possível, até o nível de espécie. O acompanhamento foi feito durante nove meses. Verificou-se a existência de diferença significativa entre as densidades de sementes das quatro pastagens, variando de 304 a 6153 sementes por metro quadrado, na profundidade de 0 a 5 cm, o que mostra uma alta variação entre as...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Pastagem; Solo; Semente; Amazônia Central; Relative importance; Similarity index; Weed; Richness.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/969082
Imagem não selecionada

Imprime registro no formato completo
Bird community in an Araucaria forest fragment in relation to changes in the surrounding landscape in Southern Brazil Iheringia, Sér. Zool.
Scherer-Neto,Pedro; Toledo,Maria Cecília B..
The dynamics of the bird community in a small forest fragment was evaluated along seven years in relation to changes in the surrounding landscape. The study area is an Araucaria forest fragment in Southern Brazil (state of Paraná). The sampling period covered the years 1988 through 1994 and the mark-release-recapture method was utilized. The landscape analysis was based on Landsat TM images, and changes in exotic tree plantations, native forest, open areas (agriculture, pasture, bare soil, and abandoned field), and "capoeira"(native vegetation < 2 m) were quantified. The relationship between landscape changes and changes in abundance diversity of forest birds, open-area birds, forest-edge birds, and bamboo specialists was evaluated. Richness estimates...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Richness; Abundance; Diversity; Long-term assessment; State of Paraná.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212012000400007
Imagem não selecionada

Imprime registro no formato completo
Boracéia Biological Station: an ornithological review Pap. Avulsos de Zool. (São Paulo)
Cavarzere,Vagner; Moraes,Gabriel Parmezani; Silveira,Luís Fábio.
Boracéia Biological Station, near the city of Salesópolis, SP, is located in one of the most well-defined centers of endemism in eastern Brazil - the Serra do Mar Center. While the station was established only in 1954 under the auspices of the Museu de Zoologia da Universidade de São Paulo, the avifauna of this locality had already attracted the attention of ornithologists by the 1940s, when the first specimens were collected. Here we describe the ornithological history of the Boracéia Biological Station with a review of all the bird species recorded during more than 68 years, including recent transect and mist-netting records. Boracéia's records were found in museums, literature and unpublished reports that totaled 323 bird species when recent data is...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Montane Atlantic forest; Transect counts; Mist-net; Richness; Ornithological collection.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492010001300001
Imagem não selecionada

Imprime registro no formato completo
Changes in Brazilian Drosophilidae (Diptera) assemblages across an urbanisation gradient Neotropical Entomology
Gottschalk,Marco S.; De Toni,Daniela C.; Valente,Vera L.S.; Hofmann,Paulo R.P..
The present study aims to characterise the assemblages of Drosophilidae sampled from four sites subject to different levels of urbanisation, in the city of Florianópolis, South Brazil. Five samples were collected between August 2000 and August 2001 and five between August 2002 and August 2003 in each site. A gradual change in the dominant species was observed in the urbanisation gradient, with an increase in relative abundance of exotic species in urban areas. Among the native species, the relative abundance of Drosophila capricorni Dobzhansky &amp; Pavan had an expressive decrease. In the other hand the richness in the low urbanisation site increased, probably due to the presence of urban gardens. The diversity index did not vary significantly among...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Drosophila; Zaprionus; Ecology; Diversity; Richness.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000600005
Imagem não selecionada

Imprime registro no formato completo
Cladocerans (Crustacea, Anomopoda and Ctenopoda) from Cerrado of Central Brazil: Inventory of phytophilous community in natural wetlands Biota Neotropica
Sousa,Francisco Diogo Rocha; Elmoor-Loureiro,Lourdes Maria Abdu; Mendonça-Galvão,Luciana de.
The aim of this study was to inventory the cladoceran fauna in wetlands located in two large areas that protect fragments of Cerrado. Located in the Brasília National Park-DF and Campo de Instrução de Formosa-GO, these wetlands are formed by upwelling groundwater, with extensive vegetation cover. We found 24 species in the Brasília National Park and 30 in the Campo de Instrução de Formosa. The observed richness reached approximately 80% of the estimated values for both protected areas. Moreover, the community of cladocerans in the kind of environment studied appears to be influenced by depth, with higher values of richness and similarity in wetlands of higher average depths. However, shallow wetlands contributed to the total richness with exclusive...
Tipo: Info:eu-repo/semantics/article Palavras-chave: High Paraná River Basin; High São Francisco River Basin; Protected areas; Richness; Shallow wetlands.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000300222
Imagem não selecionada

Imprime registro no formato completo
Composition and trophic structure of the ichthyofauna from a stream downriver from Santo Antonio Falls in the Madeira River, Porto Velho, RO Biota Neotropica
Araújo,Túlio Raimundo de; Ribeiro,Ariana Cella; Doria,Carolina Rodrigues da Costa; Torrente-Vilara,Gislene.
Belmont Stream is the main tributary of the Madeira River in the area immediately downriver from the Santo Antonio Fall. Samplings were carried out using gill nets in the mouth of this stream between May 2005 and April 2006 and resulted in a list of 74 species. The analyses included values of composition, constancy of occurrence, species richness, abundance, Catch Per Unit of Effort and trophic structure about the ten most abundant species. Characiformes and Siluriformes were dominant order in the samples and Curimatidae (popularly known as "branquinhas") was the most abundant family, represented by Psectrogaster rutiloides (32.57% of the collected specimens), Potamorhina altamazonica (10.72%), and Potamorhina latior (7.79%). The most of species were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Richness; Dominance; CPUE; Migratory route; Amazon.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000300001
Imagem não selecionada

Imprime registro no formato completo
Comunidade de Euglossini (Hymenoptera, Apidae) das dunas litorâneas do Abaeté, Salvador, Bahia, Brasil Rev. Bras. entomol.
Viana,Blandina Felipe; Kleinert,Astrid Matos Peixoto; Neves,Edinaldo Luz das.
Community of Euglossini (Hymenoptera, Apidae) from the coastal sand dunes of Abaeté, Salvador, Bahia, Brazil. The Euglossini community structure was analyzed by attracting males with the scents eucalyptol, eugenol, vanillin, benzyl benzoate and methyl salicylate, and by netting bees on flowers. The samplings took place three times a month along one year from 6:00 a.m. to 6:00 p.m. The scent baits attracted 670 individuals belonging to seven species of three genus. The predominant species were Euglossa cordata (Linnaeus, 1758) (76.6%) and Eulaema nigrita Lepeletier, 1841 (21.8%). Euglossini males visited the scents along the whole year, being more abundant in May and in August. The most efficient fragrance was eucalyptol, attracting 624 individuals of five...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Community structure; Euglossini; Richness; Scent baits; Sand dunes.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262002000400008
Imagem não selecionada

Imprime registro no formato completo
Determinants of capture-recapture success: an evaluation of trapping methods to estimate population and community parameters for Atlantic forest small mammals Rev. Bras. Zool.
Barros,Camila S.; Püttker,Thomas; Pinotti,Bruno T.; Pardini,Renata.
ABSTRACT Efficiently obtaining high-quality data on animal populations and communities is paramount for ecological and conservation studies. In many instances these data come from live-trapping, the success of which depends on various factors, such as the interaction between the trap's mechanisms and the morphological or ecological characteristics of the animals, and weather conditions that can affect both trap efficiency and animal behavior. Integrative approaches that address the simultaneous effects of these factors on capture-recapture success are rare. Here we contribute to close this knowledge gap by focusing on a large capture-recapture dataset from three 2-ha grids monitored for approximately two years (totaling 55.000 traps-night) in the Morro...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abundance; Biodiversity survey; Demography; Richness; Trapping protocol..
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000500334
Imagem não selecionada

Imprime registro no formato completo
Different slopes of a mountain can determine the structure of ferns and lycophytes communities in a tropical forest of Brazil Anais da ABC (AABC)
NETTESHEIM,FELIPE C.; DAMASCENO,ELAINE R.; SYLVESTRE,LANA S..
A community of Ferns and Lycophytes was investigated by comparing the occurrence of species on different slopes of a paleoisland in Southeastern Brazil. Our goal was to evaluate the hypothesis that slopes with different geographic orientations determine a differentiation of Atlantic Forest ferns and lycophytes community. We recorded these plants at slopes turned towards the continent and at slopes turned towards the open sea. Analysis consisted of a preliminary assessment on fern beta diversity, a Non Metric Multidimensional Scaling (NMDS) and a Student t-test to confirm if sites sampling units ordination was different at each axis. We further used the Pearson coefficient to relate fern species to the differentiation pattern and again Student's t-test to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic rain forest; Topography; Pteridophytes; Richness; Environmental factors.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100199
Imagem não selecionada

Imprime registro no formato completo
Diversidad de cabras en los sistemas tradicionales de la montaña baja del estado de Guerrero, México. Colegio de Postgraduados
García Bonilla, Dulce Violeta.
La caprinocultura ha sido una actividad económica importante en la Montaña de Guerrero, a través del pastoreo trashumante, conocido como haciendas volantes, en la época colonial y como actividad a pequeña escala más recientemente. El trabajo tuvo como objetivo caracterizar el sistema de producción de caprinos y relacionarlo con la diversidad de cabras presentes en las unidades familiares de producción. Se aplicaron 112 cuestionarios y se registró información de 863 cabras de 27 rebaños. En los cuestionarios se registró información del productor, su organización, lengua, recursos productivos, estructura del rebaño, prácticas de manejo y beneficios. Para determinar la diversidad de cabras se registró información del fenotipo y medidas zoométricas. Los datos...
Palavras-chave: Explotaciones caprinas; Productores; Riqueza; Tipo de cabra; Breeds; Farms goat; Farmers; Richness; Estrategias para el Desarrollo Agrícola Regional; EDAR; Maestría.
Ano: 2013 URL: http://hdl.handle.net/10521/2199
Imagem não selecionada

Imprime registro no formato completo
Diversity, composition and phenology of araneid orb-weavers (Araneae, Araneidae) associated with riparian forests in southern Brazil Iheringia, Sér. Zool.
Rodrigues,Everton N. L.; Mendonça Jr.,Milton de S.; Rodrigues,Patrícia E. S.; Ott,Ricardo.
The Araneidae is a speciose family including web-spinning spiders that are very abundant in various terrestrial ecosystems. Several studies demonstrate that changes in vegetation surrounding rivers, streams and brooks affect the associated araneofauna. The aim of this research was to compare differences found in diversity (abundance and richness), composition and phenology of Araneidae spiders sampled in different habitats in four riparian forest catchments in southern Brazil. Samples were taken from riparian forests in four rivers of Rio Grande do Sul State: Piratini, Camaquã, Sinos and Maquiné rivers, each in a different hydrographic basin. Samples were taken twice seasonally on each basin during two years, sampling the araneofauna of the tree-shrub...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Spiders; Habitats; Rio Grande do Sul; Abundance; Richness.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212015000100053
Imagem não selecionada

Imprime registro no formato completo
Diversity of Braconidae (Insecta, Hymenoptera) of the Parque Natural Municipal de Porto Velho, Rondonia, Brazil Rev. Bras. entomol.
Gadelha,Sian de Souza; Penteado-Dias,Angelica Maria; Silva,Alexandre de Almeida e.
Braconidae is a highly diversified family of Hymenoptera and usually known by their role in biological control both in agricultural and natural ecosystems. Despite of that, little is known about its diversity in the Amazon region. The present work inventoried the braconid fauna of an Open Ombrophylous Forest with Palm Trees of the Parque Natural Municipal de Porto Velho, RO. Insects were collect from June/2008 to May/2009 using six Malaise traps in different parts of the reserve. A total of 377 wasps were captured, 17 subfamilies and 56 genera identified. Braconinae, Microgastrinae, Doryctinae and Rogadinae subfamilies were very abundant, and also the genera Aleiodes, Bracon, Capitonius, Compsobracon, Heterospilus, Hymenochaonia, Opius, Pedinotus, Rogas...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ichneumonoidea; Parasitoid wasps; Richness; Western Amazon.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000400011
Imagem não selecionada

Imprime registro no formato completo
Diversity of bryophytes in priority areas for conservation in the Atlantic forest of northeast Brazil Acta Botanica
Silva,Mércia Patrícia Pereira; Pôrto,Kátia Cavalcanti.
The northeastern Brazilian Atlantic forest is the region with the greatest diversity of bryophytes in the country. However, knowledge about bryophytes is irregularly distributed among Brazilian regions. Therefore, we aimed to contribute to knowledge about bryophytes on a regional scale in the northeastern Atlantic forest, to identify the centers of bryophyte diversity in that region, and to reiterate the importance and identify locations for which new protected areas should be created. We built a database of bryophytes in 23 locations of the region, based on a literature review and new floristic inventories. To identify the locations of greatest relevance to bryophyte conservation, we considered 1) total and endemic species richness, 2) phylogenetic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conservation units; Liverwort; Moss; Richness; Tropical forest.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000100016
Imagem não selecionada

Imprime registro no formato completo
Diversity of cave bats in the brazilian tropical dry forest of Rio Grande do Norte State Mastozool. neotrop.
Vargas-Mena,Juan Carlos; Cordero-Schmidt,Eugenia; de Medeiros Bento,Diego; Rodriguez-Herrera,Bernal; Medellín,Rodrigo A; Venticinque,Eduardo M.
Caves are important roosts for bats in karstic areas and play a critical role in the protection of bat populations. In the state of Rio Grande do Norte, in northeastern Brazil, cave-dwelling bats are poorly studied. Moreover, the state contains more than 900 caves, mainly in the Caatinga biome, that may offer important roosts for local bat populations. Thus, to gain a first insight into the richness, diversity, and colony size of cave-bats in the state, we sampled 13 caves through active search and captures with mist nets. Sixteen species from five families were recorded, and the biggest colonies belonged to Pteronotus gymnonotus and Phyllostomus discolor. Furna Feia cave was the richest, with 10 species. Our results showed that Rio Grande do Norte is home...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Assemblage; Caatinga; Cave-dwelling bats; Colony size; Richness.
Ano: 2018 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832018000100016
Imagem não selecionada

Imprime registro no formato completo
Diversity of mycobiota in colonies of different species of leaf-cutting ants and sampling sites across Argentina Ecología austral
Marfetan,Jorge A; Folgarait,Patricia J.
Attine ants are a monophyletic group comprising more than 230 species, distributed exclusively in the New World. All higher Attini ants depend on the cultivation of fungus gardens for food, and those gardens are continuously exposed to alien microorganisms. The present work describes, for the first time, the composition, relative frequency and the richness of the fungal species comprising the mycobiota from the garden of the most abundant Acromyrmex species from different regions of Argentina. We also compared, using a multivariate approach, the mycobiota composition with the purpose of testing two hypotheses: 1) whether mycobiota is defined by the ant species, or 2) whether mycobiota is determined by the geographical region. We found that each fungal...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abundance; Acromyrmex; Ascomycota; Fungal communities; Richness; Zygomycetes.
Ano: 2017 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2017000400008
Imagem não selecionada

Imprime registro no formato completo
Diversity of small land mammals in a subtropical Atlantic forest in the western region of the state of Santa Catarina, southern Brazil Biota Neotropica
Maestri,Renan; Galiano,Daniel; Kubiak,Bruno Busnello; Marinho,Jorge Reppold.
Small land mammals possess features that significantly influence the dynamics of ecosystems and participate in various levels of the food web. In the Brazilian Atlantic Forest the richness of these animals is high, which makes them even more ecologically and numerically relevant in this environment. In this context, we investigated the species composition of small mammals in an unexplored area of southern Brazil, and compared the species composition of this area with other Atlantic Forest regions in order to understand how this community is related to others. The study area was located in an interior Atlantic forest formation, at a transition region between deciduous and Araucaria forests. Small mammals were captured at five collection points using pitfall...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Richness; Species composition; Uruguay River; Rodentia; Didelphimorphia.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000400204
Imagem não selecionada

Imprime registro no formato completo
Diversity of wasps (Hymenoptera: Aculeata: Vespidae) along an altitudinal gradient of Atlantic Forest in Itatiaia National Park, Brazil Rev. Bras. entomol.
Ribeiro,Daniele Guedes; Silvestre,Rogerio; Garcete-Barrett,Bolívar R..
ABSTRACT Surveying the diversity of stinging wasps (Hymenoptera: Aculeata) provides an important information base to assist in biodiversity conservation and the management of forest reserves, as wasps depend on and maintain the population balance of several other groups of insects. In accordance, this paper presents an altitudinal survey of wasps (Hymenoptera, Aculeata, Vespidae) in Itatiaia National Park, Brazil, which is a protected area covered by Atlantic Forest in a mountainous landscape, with altitudes ranging between 540 and 2791 metres above sea level. Six altitudinal zones were sampled with entomological net, and the abundance and diversity of the species were indicated by zones. Field sampling took 288 h of discontinuous activity, which was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity hotspot; Eumeninae; Polistinae; Richness; Tropical forest.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262019000100022
Registros recuperados: 67
Primeira ... 1234 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional