Results 71 to 80 of about 12,889 (145)

Fluctuating asymmetry in spider‐hunting wasps as a possible indicator of stress in Brazilian Atlantic Forest landscapes Assimetria flutuante em vespas caçadoras de aranhas como possível indicador de estresse em paisagens da Mata Atlântica brasileira

Ecological Entomology, EarlyView.
Agricultural cover was positively associated with fluctuating asymmetry in Trypoxylon opacum, suggesting a possible increase in developmental instability in intensively managed landscapes. Wing size was positively related to forest cover and negatively related to agricultural cover, indicating that forested landscapes may promote larger body size ...
Luana Vieira Carlin dos Santos, Jean Pablo Alves de Deus, Milton Cezar Ribeiro, Maria Luisa Tunes Buschini   +3 more
wiley   +1 more source

Who prefers the dark? Daily activity of dung beetles from an Amazonian region

Ecological Entomology, EarlyView.
Daily activity patterns shape how dung beetle species coexist in Amazonian forests, revealing temporal niches that reduce competition and structure biodiversity. We compared species richness, abundance and assemblage composition of dung beetles sampled during day and night in a conserved terra‐firme forest in the Brazilian Amazon. Although richness and
Leonardo Vilas‐Bôas M. P. de Cerqueira, Cesar Murilo de Albuquerque Correa, Gabrielle Jorge, André Felipe de Araújo Lira, Júlia de Góis Silva, André Yves, Gleycon Silva, Sergio Santorelli Jr., Renato Portela Salomão   +8 more
wiley   +1 more source

Social media highlights the overlooked impact of cats on arthropods

Insect Conservation and Diversity, EarlyView.
The impact of domestic cats on vertebrate biodiversity is unequivocal; however, we still know little about their effects on arthropods. By analysing over 17,000 photos and videos from social media platforms (iStock and TikTok), we documented 550 predation events of cats on arthropods.
Leticia Alexandre, Raul Costa‐Pereira
wiley   +1 more source

Period of the day drives distinctions in the taxonomic and functional structures of reef fish assemblages

Journal of Fish Biology, EarlyView.
Abstract Circadian processes are key drivers of animal behaviour, influencing patterns of activity, resource partitioning and competition avoidance. Studies evaluating circadian changes on the structure of marine assemblages are lacking, especially for reef fish.
Marcos B. Lucena, Thiago C. Mendes, Cesar A. M. M. Cordeiro, Carlos E. L. Ferreira   +3 more
wiley   +1 more source

Avaliação do risco de extinção do veado-galheiro Odocoileus virginianus Zimmermann, 1780, no Brasil

Biodiversidade Brasileira, 2012
O estado de conservação do veado-galheiro, Odocoileus virginianus cariacou (Zimmermann 1780), foi avaliado de acordo com os critérios da IUCN (2001), com base nos dados disponíveis até 2010.
José Maurício Barbanti Duarte, Alexandre Vogliotti, Eveline dos Santos Zanetti, Márcio Leite de Oliveira, Liliani Marília Tiepolo, Lilian Figueiredo Rodrigues, Lilian Bonjorne de Almeida   +6 more
doaj   +1 more source

New insights into Ituglanis (Siluriformes: Trichomycteridae) diversity in Bahia State, eastern Brazil: Description of a new species and conservation status reappraisal

Journal of Fish Biology, EarlyView.
Abstract The northeastern Atlantic Forest of Brazil harbours a remarkable diversity of species of Trichomycteridae, many of which remain poorly understood. This study describes a new species of Ituglanis, endemic to the Ribeirão São Roque, a stream tributary of Rio Piabanha, an affluent of Rio Colônia basin, Bahia State, Brazil.
Paulo J. Vilardo, Axel M. Katz, Wilson J. E. M. Costa   +2 more
wiley   +1 more source

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

Journal of Fish Biology, EarlyView.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert, João C. Maicrovicz, Daniel R. Blanco, Denise Lange, Carla S. Pavanelli, Heleno Brandão   +5 more
wiley   +1 more source

Deciphering the complex life cycle and partial migration of an ecological engineer and critical Neotropical fishery species, Prochilodus costatus

Journal of Fish Biology, EarlyView.
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Alexandre Peressin, João de Magalhães Lopes, Francisco Ricardo Andrade Neto, Gilmara Junqueira Machado, Carlos Bernardo Mascarenhas Alves, Luis David Solis Murgas, Paulo Santos Pompeu   +6 more
wiley   +1 more source

Tendências populacionais de vertebrados de médio e grande porte em áreas protegidas da Amazônia brasileira

Biodiversidade Brasileira
A atual crise de biodiversidade tem gerado uma demanda crescente por informações sobre o estado e as tendências da biodiversidade, especialmente em regiões megadiversas como os trópicos, onde há carência de dados.
Elildo Alves Ribeiro de Carvalho Junior, Ricardo Sampaio, Gerson Buss, Marcos de Souza Fialho, Marcelo Lima Reis   +4 more
doaj   +1 more source

Age and growth of the endemic groovebelly stingray (Dasyatis hypostigma), a heavily exploited batoid in the Brazilian Meridional Margin (21–34° S)

Journal of Fish Biology, EarlyView.
Abstract Life‐history data are often lacking for exploited elasmobranchs, jeopardizing proper management and conservation measures for this vulnerable group. Herein, we provided age and growth estimates for the groovebelly stingray (Dasyatis hypostigma), a medium‐sized, heavily exploited batoid endemic to the southwestern Atlantic Ocean.
Giovanni Arlan Torres, Rodrigo Silvestre Martins, Luciano Gomes Fischer, Luís Gustavo Cardoso, Rodrigo Sant'Ana, Bruno Mourato   +5 more
wiley   +1 more source