Habitat Disturbance
Mostrando 1-12 de 38 artigos, teses e dissertações.
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1. Species richness and community composition of sphingid moths (Lepidoptera: Sphingidae) along an elevational gradient in southeast Peru
ABSTRACT A clear low-elevation skewed unimodal richness pattern is presented for hawkmoths in Southeast Peru. Several hypotheses offer plausible explanations for such a distribution. The effects of water-energy dynamics are partially supported by a strong correlation between temperature and species richness at higher elevations. Further, hypotheses of plant
Zoologia (Curitiba). Publicado em: 21/10/2019
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2. What do we know about Neotropical trap-nesting bees? Synopsis about their nest biology and taxonomy
Abstract Cavity-nesting bees are enigmatic because they are difficult to observe in the wild, hence trap-nests (man-made cavities) provide the means by which these bees may be studied. Trap-nests is an efficient methodology to study these bees and are common worldwide. These traps have been used for a variety of reasons, including inventories, to examine pol
Pap. Avulsos Zool.. Publicado em: 13/06/2019
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3. Structure and floristic diversity of remnant semideciduous forest under varying levels of disturbance
The perturbation of Neotropical forests generates large disturbances in biological communities. The species that suffer least from the resulting habitat fragmentation are the pioneers, because they possess greater ability to inhabit disturbed environments. Therefore, it is expected that species diversity will be greater in areas subjected to intermediate dis
Acta Bot. Bras.. Publicado em: 2014-12
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4. Habitat use and movements of Glossophaga soricina and Lonchophylla dekeyseri (Chiroptera: Phyllostomidae) in a Neotropical savannah
The greatest current threat to terrestrial fauna is continuous and severe landscape modification that destroys and degrades animal habitats. This rapid and severe modification has threatened species, local biological communities, and the ecological services that they provide, such as seed dispersal, insect predation, and pollination. Bats are important polli
Zoologia (Curitiba). Publicado em: 2014-06
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5. Trophic organization and fish assemblage structure as disturbance indicators in headwater streams of lower Sorocaba River basin, Sao Paulo, Brazil
Estudos que buscam investigar os padrões de relação entre a complexidade da estrutura ambiental e a fauna de peixes fornecem informações cruciais para os esforços de restauração de riachos. Para testar a hipótese de que riachos com estrutura ambiental mais complexa sustentam comunidades ícticas mais diversas do ponto de vista taxonômico e funciona
Neotrop. ichthyol.. Publicado em: 2013-03
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6. Carabid beetle assemblages in three environments in the Araucaria humid forest of southern Brazil
Carabid beetle assemblages in three environments in the Araucaria humid forest of southern Brazil. Carabidae is composed mainly by ground-dwelling predator beetles. It is the fourth most diverse group within Coleoptera, but its diversity in the Neotropical region is understudied. Here we describe and analyze the diversity of carabid beetles in a region of su
Rev. Bras. entomol.. Publicado em: 2013-03
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7. Seasonal habitat selection of the red deer (Cervus elaphus alxaicus) in the Helan Mountains, China
We studied the seasonal habitat selection of the red deer, Cervus elaphus alxaicus Bobrinskii & Flerov, 1935, in the Helan Mountains, China, from December 2007 to December 2008. Habitat selection varied widely by season. Seasonal movements between high and low elevations were attributed to changes in forage availability, alpine topography, the arid climate o
Zoologia (Curitiba). Publicado em: 2013-02
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8. Efeitos da rugosidade de substratos, distúrbios físicos e organismos pastejadores na estruturação de assembleias de algas bênticas e na biomassa perifítica em um riacho subtropical : uma abordagem experimental
Os estudos apresentados nesta tese tiveram como objetivo compreender aspectos da organização de assembleias de algas bênticas em riachos. Foi avaliado especificamente o efeito da heterogeneidade de habitat na escala de rugosidade de substratos e sua interação com distúrbios hidrológicos e organismos pastejadores (grazers). Utilizou-se uma abordagem ex
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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9. Avifauna de matas ciliares do Rio Batalha e adjacências, região centro-oeste do estado de São Paulo, Brasil
Forest fragmentation and habitat loss in tropical regions are implicated for different organisms responses, with special attention to avian species susceptible to disturbance. They react negatively in the face of changes in their habitats, reducing population size. In this scenario, the riparian forests play an important role as refuge for many species of bi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/03/2011
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10. Multimetric index for assessing ecological condition of running waters in the upper reaches of the Piabanha-Paquequer-Preto Basin, Rio de Janeiro, Brazil
The objective of this study was to develop a rapid multimetric index using benthic macrofauna as bioindicators of ecological conditions for the upper reaches of the Piabanha-Paquequer-Preto Basin located in the state of Rio de Janeiro, Brazil. A total of 33698 macroinvertebrates were collected in 27 sites. Benthic macroinvertebrates were sampled using the mu
Zoologia (Curitiba). Publicado em: 2011-10
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11. Interações entre o predador Podisus nigrispinus (Heteroptera: Pentatomidae) e o parasitóide Palmistichus elaeisis (Hymenoptera: Eulophidae) / Interactions among the predator Podisus nigrispinus (Heteroptera: Pentatomidae) and the parasitoid Palmistichus elaeisis (Hymenoptera: Eulophidae)
The use of more than one natural enemy for pests control can increase the efficiency of the biological control, mainly, when those organisms act on different apprenticeships of the pests. The diversification of the beneficial fauna can reduce the population of herbivores and the disturbance of the ecosystems, increasing the local stability. The objective was
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/09/2010
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12. Influência da composição de substrato do recife na atividade e distribuição de peixes zoobentívoros no arquipélago de Fernando de Noronha, Pernambuco / The influence of substratum composition on the activity and distribution of benthic carnivorous reef fishes of the Fernando de Noronha Archipelago
Reefs provide shelter and food for several fish species and, thus, there may be a correlation between the abundance and behaviour of fishes and the reef bottom composition-Physical factors, such as water movement and depth, may also have a profound impact in species distribuiton and activity on reefs. Here, the possible relationship between the distribution
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/07/2010