Abundance Distribution Relationship
Mostrando 1-12 de 56 artigos, teses e dissertações.
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1. Composition, abundance, and diversity of limnetic cladocerans (Crustacea: Anomopoda and Ctenopoda) in a black-water lake in the Negro River basin, Amazonas State, Brazil
Abstract For the past 10 years, studies have contributed greatly to knowledge regarding the composition and distribution of the planktonic cladocerans of Tupé Lake in Amazonas State, Brazil, but comparisons between these studies have not been made, and this would increase the comprehension of the ecology of these organisms and their environment. Periodicall
Nauplius. Publicado em: 13/09/2018
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2. Growth of the Anchovy Anchoa tricolor in a brazilian subtropical estuary
ABSTRACT This study aimed to describe the growth parameters of Anchoa tricolor in a subtropical estuary. From August 2010 to July 2011, 10.009 specimens of the anchovy Anchoa tricolor, mean total length 4.2 cm (±1.45), were captured in the intertidal region of the Estuarine Complex of Paranaguá (25º 15’ - 25° 35’ S and 48° 20’ - 48° 45’ W). Spe
An. Acad. Bras. Ciênc.. Publicado em: 25/06/2018
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3. Spatial Variability of Soil Fauna Under Different Land Use and Managements
ABSTRACT Geostatistics allows the evaluation of the distribution pattern of data with high spatial variability in agricultural systems. This study aimed to evaluate the spatial variability of biological diversity indices of soil fauna under different land (agriculture and forest). Samples were collected in seven areas (millet, soybean, corn, eucalyptus, past
Rev. Bras. Ciênc. Solo. Publicado em: 28/05/2018
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4. Density, abundance and extractive potential of the mangrove crab, Ucides cordatus (Linnaeus, 1763) (Brachyura, Ocypodidae): subsidies for fishery management
ABSTRACT Ucides cordatus is a relevant fishery resource of Brazilian mangroves and requires legal normative to sustainable use based on stock assessment and management. This study evaluated some population parameters (structure, density, abundance, fishery potential and stock) of this crab species in Brazil Southeast (São Paulo, State), discussing the use o
An. Acad. Bras. Ciênc.. Publicado em: 2018-04
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5. Protocol for collecting Mutillidae (Hymenoptera, Aculeata) in ecological studies: species-area effects on Mutillidae communities
ABSTRACT The species-area relationship is one of the most consistent patterns in ecology, and fragmentation is a major cause of habitat loss. Environmental changes in a site can affect the spatial distribution of organisms. Knowledge of Mutillidae ecology is still scarce due to the lack of standardized sampling. Our aim was to: (1) determine the effect of ha
Rev. Bras. entomol.. Publicado em: 2016-12
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6. Abundance of Lutzomyia longipalpis in urban households as risk factor of transmission of visceral leishmaniasis
Urban occurrence of human and canine visceral leishmaniasis (VL) is linked to households with characteristics conducive to the presence of sand flies. This study proposes an ad hoc classification of households according to the environmental characteristics of receptivity to phlebotominae and an entomological study to validate the proposal. Here we describe t
Mem. Inst. Oswaldo Cruz. Publicado em: 2016-05
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7. Aspectos da ecologia trÃfica e distribuiÃÃo vertical de uma populaÃÃo de Dendropsophus gr. Microcephalus (Anura, Hylidae) em uma area de mata de tabuleiro litorÃneo do Nordeste brasileiro. / Aspects of trophic ecology and microhabitat use (vertical distribution) of a population of Dendropsophus gr. microcephalus (Anura, Hylidae) in a forest area of the coastal tableland Brazilian Northeast
In this work, it was studied the diet and vertical stratification in D. gr. microcephalus in an area of coastal tableland of northeastern Brazil. Regarding diet, it was identified the main food items, the occurrence of sexual, ontogenetic and seasonal variation in relation to the consumed prey, as well as the ratio of length and volume of these with the snou
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2012
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8. Lutzomyia longipalpis abundance in the city of Posadas, northeastern Argentina: variations at different spatial scales
The distribution of Lutzomyia longipalpis is heterogeneous with a pattern of high abundance areas (HAAs) embedded in a matrix of low abundance areas (LAAs). The objective of this study was to describe the variability in the abundance of Lu. longipalpis at two different spatial levels and to analyse the relationship between the abundance and multiple environm
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-09
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9. Contribuição ao conhecimento dos Metopiinae (Hymenoptera, Ichneumonidae) do Brasil, com ênfase em ambientes de mata e cerrado da Bacia Hidrográfica do Rio Mogi-Guaçu
ABSTRACT This study aimed to contribute to the knowledge of the Brazilian fauna of Metopiinae through the characterization and quantification of their genus and species in areas of semideciduous forest and savanna in Mogi-Guaçu River Basin, located in Minas Gerais and São Paulo. Malaise traps were installed in 10 sampling points located in six localities a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/08/2011
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10. Drought resistance in seedlings tree species of semideciduous tropical forest / Resistência à seca em plântulas de espécies arbóreas da floresta estacional semidecídua
The rainfall is high in tropical forests, but there is great variation in water availability to plants. On a local scale, this availability may vary depending on the location of individuals in gaps, their position in the landscape and soil composition. On a regional scale, variations related to the volume and distribution of rainfall, coupled with seasonal c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/06/2011
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11. Ecological distribution of the shrimp Pleoticus muelleri (Bate, 1888) and Artemesia longinaris Bate, 1888 (Decapoda, Penaeoidea) in the southeastern Brazilian littoral
The relationship between species abundance and environmental factors such as the bottom water temperature and salinity, the texture and organic matter content of the sediment and the distribution of Pleoticus muelleri and Artemesia longinaris were investigated. Specimens and samples of abiotic factors were collected monthly from May 2008 to April 2010 at 4 l
Nauplius. Publicado em: 2011-12
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12. Exploração ilegal de madeira no arquipélago de Anavilhanas (Amazônia Central): variáveis humanas que determinam a distribuição espacial da exploração e efeitos estruturais sobre os táxons mais explorados
The Anavilhanas National Park is an Amazonian protected area facing nowadays the challenge of controlling illegal logging. To aid this task, this study aimed to determine (1) the densities of the exploited species in this area; (2) the spatial distribution of logging; (3) the effect of logging on population structure; (4) the growth rate of each species and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/10/2010