Results 81 to 90 of about 131,600 (190)

Arboreal and Terrestrial Frugivore Vertebrate Assemblage Diversity and Composition Vary With Disturbance Histories in Guianan Forests

open access: yesEcology and Evolution, Volume 16, Issue 10, October 2026.
This study examined the impact of human disturbances on arboreal and terrestrial fruit‐consuming vertebrate assemblages across three tropical forest sites in French Guiana. While species richness remained consistent across sites, results revealed significant variations in visitation rates and a shift in dominant species.
Raphaëlle Abensur   +7 more
wiley   +1 more source

Unpacking the drivers of gut‐passage times of seeds dispersed by frugivorous lemurs

open access: yesEcology, Volume 107, Issue 10, October 2026.
Abstract The impacts of endozoochory on plant populations are primarily determined by how seeds are processed in animal guts. Therefore, understanding the factors that determine how long seeds remain in the gut is crucial for predicting the outcomes of animal‐mediated seed dispersal.
Onja H. Razafindratsima   +2 more
wiley   +1 more source

Patch size, functional isolation, visibility and matrix permeability influences neotropical primate occurrence within highly fragmented landscapes. [PDF]

open access: yesPLoS ONE, 2015
Forest fragmentation and habitat loss are among the major current extinction causes. Remaining fragments are mostly small, isolated and showing poor quality. Being primarily arboreal, Neotropical primates are generally sensitive to fragmentation effects.
Lucas Goulart da Silva   +4 more
doaj   +1 more source

Seasonality and plasticity in the use of native and introduced plant resources by a large forest parrot

open access: yesIbis, Volume 168, Issue 4, Page 1572-1588, October 2026.
Human‐induced environmental change is reshaping plant communities, requiring native animals to adapt their foraging behaviour to track and exploit novel food resources. Trees such as pines (Pinus spp.) introduced for plantation forestry outside of their native ranges often become naturalized.
Tirth Vaishnav   +2 more
wiley   +1 more source

Unexpected Victims: Roadkill of Primates in the Fragmented Landscape of the Middle Magdalena, Colombia

open access: yesMammalogy Notes
We report five (5) events involving platyrrhine primates found in the Ruta del Sol highway, in the landscape of the Middle Magdalena Valley, Colombia.
Julián Arango-Lozano Arango Lozano   +1 more
doaj   +1 more source

Infection by Toxoplasma gondii in Neotropical non-human primates

open access: yesPesquisa Veterinária Brasileira, 2012
Toxoplasma gondii (Nicolle et Manceaux, 1909) is an obligatory intracellular protozoan parasite of warm animals, including human and non-human primates. Domestic and wild felids are considered definitive hosts.
Juliana S. Pires   +5 more
doaj   +1 more source

Fecal and Salivary Cortisol Concentrations in Woolly (Lagothrix ssp.) and Spider Monkeys (Ateles spp.) [PDF]

open access: yes, 2009
Detrimental physiological effects due to stressors can contribute to the low captive success of primates. The objective of this research was to investigate the potential impact of diet composition on cortisol concentrations in feces and saliva in woolly (
Heugten, E., van   +18 more
core   +1 more source

Laparoscopic ovum pick-up (LOPU) in neotropical primates of Amazonia: a post mortem model study

open access: yesScientific Reports
Neotropical primates from the Amazon are valuable models for biomedical research. However, several species are currently under threat of extinction, which highlights the need for reproductive conservation strategies. Laparoscopic ovum pick-up (LOPU) is a
Julyne Vivian Guimarães de Carvalho   +6 more
doaj   +1 more source

Comparative and functional anatomy of masticatory muscles and bite force in opossums (Didelphimorphia, Didelphidae)

open access: yesThe Anatomical Record, Volume 309, Issue 9, Page 2346-2367, September 2026.
We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley   +1 more source

Divergent evolution and purifying selection of the H (FUT1) gene in New World monkeys (Primates, Platyrrhini)

open access: yesGenetics and Molecular Biology, 2004
In the present study, the coding region of the H gene was sequenced and analyzed in fourteen genera of New World primates (Alouatta, Aotus, Ateles, Brachyteles, Cacajao, Callicebus, Callithrix, Cebus, Chiropotes, Lagothrix, Leontopithecus, Pithecia ...
Bárbara do Nascimento Borges   +1 more
doaj   +1 more source

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