Results 71 to 80 of about 131,083 (191)

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

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

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

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

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

The 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

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

PLoS 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, Milton Cezar Ribeiro, Érica Hasui, Carla Aparecida da Costa, Rogério Grassetto Teixeira da Cunha   +4 more
doaj   +1 more source

Vector-borne transmission of Trypanosoma cruzi among captive Neotropical primates in a Brazilian zoo. [PDF]

Parasit Vectors, 2016
Background: Neotropical primates are important sylvatic hosts of Trypanosoma cruzi, the etiological agent of Chagas disease. Infection is often subclinical, but severe disease has been described in both free-ranging and captive primates.
Minuzzi-Souza TT, Nitz N, Knox MB, Reis F, Hagström L, Cuba CA, Hecht MM, Gurgel-Gonçalves R.   +7 more
europepmc   +2 more sources

Ecological significance of fruit displays in Myrtaceae: relationship between fruit colour, maturation stage, attractiveness and seed germination

Oikos, Volume 2026, Issue 9, September 2026.
Fruit colour has long fascinated scientists and is widely considered an evolutionary adaptation to attract both avian and mammalian frugivores. While fleshy fruits play a key role in plant–animal interactions by promoting seed dispersal, the functional significance of colour variation, particularly multicoloured displays during ripening, remains poorly
Hercília Freitas da Cunha, Eduardo Luiz Voigt, Eliana Cazetta, Vanessa Graziele Staggemeier   +3 more
wiley   +1 more source