Results 71 to 80 of about 131,600 (190)

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

Integrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez, Santiago Hernández Del Pino, Esperanza Cerdeño, Manuel Hernández Fernández, Laura Domingo   +4 more
wiley   +1 more source

USING MORPHOMETRICS TO DETERMINE SEX IN A NEOTROPICAL PASSERINE: THE GRAY‐BREASTED WOOD‐WREN (HENICORHINA LEUCOPHRYS) [PDF]

, 2017
∙ Sexual size dimorphism is a widespread pattern among birds, but has remained untested for many Neotropical species. Here we examine sexual differences in a relatively common passerine that is found from Mexico to Bolivia, the Gray‐breasted Wood‐Wren ...
Pérez-Emán, Jorge L, Machado-Stredel, Fernando   +1 more
core   +2 more sources

Areas of high risk for mammalian biodiversity and nature's contributions to people under global warming

Conservation Science and Practice, EarlyView.
Climate change has reached unprecedented levels, causing frequent extreme events like droughts and fires. These changes are driving a sharp rise in extinction risk for mammals and threatening key Nature's Contributions to People (NCP) such as clean water, air quality, and climate regulation.
Marta Cimatti, Andrea Sacchi, Moreno Di Marco   +2 more
wiley   +1 more source

Sit‐and‐Wait for the Agoutis: Dung Beetle Phoresy on Dasyprocta azarae in a Tropical Forest

Biotropica, Volume 58, Issue 6, November 2026.
ABSTRACT We document the first case of phoresy by dung beetles with a rodent, involving Canthon (Goniocanthon) smaragdulus subviridis and agoutis (Dasyprocta azarae). Camera traps set in a tropical forest recorded 21 phoretic events, with agoutis carrying 1–6 beetles each. This behavior likely enhances how beetles locate fresh dung.
Fernanda C. Souza, Glauco Cássio de Sousa Oliveira, Letícia Vieira, Fernando Z. Vaz‐de‐Mello, Júlio Louzada, Fernando Cesar Cascelli Azevedo   +5 more
wiley   +1 more source

The origin and evolution of neotropical primates

, 2008
A significant event in the early evolution of Primates is the origin and radiation of anthropoids, with records in North Africa and Asia. The New World Primates, Infraorder Platyrrhini, have probably originated among these earliest anthropoids morphologically and temporally previous to the catarrhine/platyrrhine branching .
openaire   +2 more sources

Adaptive evolution of facial colour patterns in Neotropical primates [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2012
The rich diversity of primate faces has interested naturalists for over a century. Researchers have long proposed that social behaviours have shaped the evolution of primate facial diversity. However, the primate face constitutes a unique structure where the diverse and potentially competing functions of communication, ecology and physiology intersect,
Sharlene E, Santana, Jessica, Lynch Alfaro, Michael E, Alfaro   +2 more
openaire   +2 more sources

Genetic diversity of neotropical primates: phylogeny, population genetics, and animal models for infectious diseases

, 2010
The classification of neotropical primates has been controversial, and different arrangements have been proposed based on disparate taxonomic criteria and on the traits selected for elucidating phylogenetic reconstructions, like morphologic characters ...
Seuánez, H. N., Moreira, M. A. M., Bonvicino, C. R., Soares, M. A.   +3 more
core   +1 more source

Multilevel societies in new world primates? Flexibility may characterize the organization of Peruvian red uakaris (Cacajao calvus ucayalii) [PDF]

, 2012
Researchers have described multilevel societies with one-male, multifemale units (OMUs) forming within a larger group in several catarrhine species, but not in platyrhines.
Knogge, Christoph, Bowler, Mark Timothy, Bowler, Mark, Zinner, D, Zinner, Dietmar, Heymann, Eckhard, Eckhard W. Heymann, Knogge, C, Christoph Knogge, Dietmar Zinner, Mark Bowler, Heymann, Eckhard W.   +11 more
core   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, Volume 309, Issue 10, Page 2873-2896, October 2026.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source

BIRD COMMUNITIES ALONG URBANIZATION GRADIENTS: A COMPARATIVE ANALYSIS AMONG THREE NEOTROPICAL CITIES [PDF]

, 2017
∙ Urbanization is expanding continuously over rural and natural areas and it is imperative to analyze its effect on bird communities. Although the impact of urbanization on bird communities in the Neotropical region has been explored by several authors ...
Villegas, Mariana, Leveau, Lucas M, Cursach, Jaime A., Leveau, Carlos M., Suazo, Cristian G.   +4 more
core   +2 more sources