Results 21 to 30 of about 379 (62)
Anti‐Predation and Size‐Dependent Gas Exchange Functions of Amazonian Architect Cicada Towers
Biotropica, Volume 58, Issue 2, March 2026.Clay towers built by cicada nymphs before metamorphosis are poorly understood. We experimentally show that towers of the Amazonian cicada Guyalna chlorogena reduce predation risk and exhibit size‐dependent growth responses to gas exchange obstruction, supporting their interpretation as adaptive extended phenotypes.
Marina Mega +5 more
wiley +1 more source
Brazilian Journal of Biology, 2018 Most studies on mechanisms regulating fish larvae processes have focused on assessing the isolated effects of food distribution and feeding behavior. However, in natural ecosystems, fish larvae may strongly interact with zooplankton organisms in an array
P. H. S. Picapedra +2 more
doaj +1 more source
Social media highlights the overlooked impact of cats on arthropods
Insect Conservation and Diversity, Volume 19, Issue 2, Page 460-465, March 2026.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
Boletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 2008 O gênero Helicops inclui, atualmente, 15 espécies, das quais onze ocorrem na floresta amazônica. Helicops hagmanni se alimenta de peixes e apresenta hábitos noturnos, mas dados detalhados sobre seu comportamento alimentar e ecologia são escassos.
Marcelo José Sturaro +1 more
doaj +1 more source
Ecologia de sementes de Pithecolobium racemosum Ducke. () [PDF]
Acta Amazonica, 1981 Resumo Observações da frutificação, predação e germinação de sementes, levando em consideração a luminosidade e a alelopatia, bem como o crescimento inicial de Pithecolobium racemosum Ducke, são aqui expostos. A produção de frutos mostra um padrão bienal,
Angela M. C. Leite, Judy M. Rankin
doaj +1 more source
Journal of Zoology, Volume 328, Issue 3, Page 234-247, March 2026.In our recent study, we examined whether ants in the Brazilian Cerrado follow the “grain‐size hypothesis,” which proposes that larger ants should have proportionally longer legs to move efficiently across different environments. We used Ectatomma permagnum, a common predatory ant in the Cerrado, measuring hundreds of individuals collected from various ...
A. Sandim, R. Aranda
wiley +1 more source
Acta Amazonica, 2009 Podocnemis expansa e P. unifilis são animais de vida longa, com uma demorada maturação sexual, o que influencia uma baixa taxa de substituição de indivíduos.
Giovanni Salera Junior +2 more
doaj +1 more source
Animal Conservation, Volume 28, Issue 6, Page 803-816, December 2025.Our study projects significant climate change‐induced distribution shifts of a keratin‐feeding beetle Omorgus suberosus, with expansions into higher latitudes in Europe and North America and notable habitat losses in tropical regions by 2100. Ecological niche models predict a global habitat reduction of 9.5% under SSP2–4.5 and 20.8% under SSP5–8.5 ...
Janderson Batista Rodrigues Alencar +4 more
wiley +1 more source
When Raptors Are Away, Opossums Will Play: Woolly Opossums as Carrion Feeders in Harpy Eagle Nests
Biotropica, Volume 57, Issue 6, November 2025.Scavenging by New World marsupials is rarely documented. We recorded woolly opossums (Caluromys lanatus) scavenging prey remains from a Harpy eagle’s nest in central Brazil. The low overlap in activity periods between the two species may facilitate the behavior observed here.
João Pedro Fernandes Machado +3 more
wiley +1 more source
Landscape use by prey: Bottom‐up regulation prevails under reduced predation risk
Ecosphere, Volume 15, Issue 11, November 2024.Abstract Resource specialist herbivores may suppress antipredator strategies to access scarcely available key resources, while proactive antipredator behaviors should be favored by generalists or when resources are abundant. We quantified the relative effects of predation‐ (top‐down) and resource‐driven (bottom‐up) constraints on spatiotemporal ...
Filipe Rocha +3 more
wiley +1 more source