Results 71 to 80 of about 146,276 (168)

Dimorphism in quaternary scelidotheriinae (mammalia, xenarthra, phyllophaga) [PDF]

open access: yes, 2015
The contributions concerning possible cases of sexual dimorphisms in fossil and living sloths are scarce. Until now, studies in fossil ground sloth sexual dimorphism have been limited to the subfamilies Megatheriinae (Eremotherium) and Mylodontinae ...
Miño Boilini, Ángel Ramón   +1 more
core   +1 more source

Hemisphere‐Level Comparison of Climate‐Driven Humpback Whale Breeding Migrations to the Eastern Pacific Off Costa Rica

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
This study analyzed humpback whale occurrence off the Pacific coast of Costa Rica from 2001 to 2023, focusing on the Central America and Southeast Pacific Distinct Population Segments, using long‐term sightings and Bayesian time‐series and habitat models.
Lili Pelayo‐González   +6 more
wiley   +1 more source

Los roedores y lagomorfos del Neógeno de España

open access: yesEstudios Geologicos, 2006
Los estudios realizados desde mediados del siglo pasado en España por muchos autores sobre las faunas de micromamíferos, han dado lugar a que actualmente haya un buen conocimiento del registro fósil del Neógeno español.
C. Sesé
doaj   +1 more source

Un nuevo género para Habrothrix angustidens y Akodon serrensis (RODENTIA, CRICETIDAE): de nuevo palentología y neontología se encuentran en el legado de Lund [PDF]

open access: yes, 2016
We describe a new genus of sigmodontine rodent to allocate a fossil species from Lagoa Santa cave deposits, Habrothrix angustidens Winge, and a living species from southeastern Atlantic Forest described at the start of the past century, Akodon serrensis ...
Geise, Lena   +3 more
core  

A New Species of Neoglyptatelus (Mammalia, Xenarthra, Cingulata) from the Late Miocene of Uruguay Provides New Insights on the Evolution of the Dorsal Armor in Cingulates [PDF]

open access: yes, 2018
The genus Neoglyptatelus Carlini, Vizcaíno and Scillato-Yané has been considered a member of Glyptatelinae, a group encompassing the purportedly basal-most glyptodonts.
Fernicola, Juan Carlos   +4 more
core   +2 more sources

American manatees adjust their diet composition and trophic niche breadth across different coastal regions

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 3, May 2026.
Abstract Marine mammals can exhibit high plasticity in foraging strategies, but how such plasticity is driven by environmental conditions is poorly understood. The American manatee (Trichechus manatus), a large, endangered herbivore, inhabits marine, estuarine, and freshwater environments.
Camila Carvalho de Carvalho   +13 more
wiley   +1 more source

A capivara, Hydrochoerus hydrochaeris (Mammalia, Rodentia), no sítio arqueológico SC PRV 02, Ilha de Santa Catarina – Santa Catarina

open access: yesBiotemas, 2005
A Ilha de Santa Catarina contém dezenas de sítios arqueológicos, nos quais podem ser encontrados restos ósseos de diversos animais. O trabalho diagnostica e quantifica restos ósseos de capivaras extraídos do Sítio Arqueológico SC PRV 02 (1067 a 1735 A.P.)
Pedro Volkmer de Castilho   +1 more
doaj  

Las áreas de mitosis forjan nuevos estilos en los estudios sobre paleontología de mamíferos

open access: yesEstudios Geologicos, 2006
Desde el siglo XIX, la morfología descriptiva y comparada de los molares, basada en la observación directa y comparación morfológica, es utilizada para elegir los caracteres, que mejor fundamenta la filogenia de los linajes de mamíferos.
A. Ruiz Bustos
doaj   +1 more source

Metodologia [PDF]

open access: yes, 2017
Este atlas inclui as espécies de mamíferos silvestres com ocorrência documentada em Portugal, tanto em meio marinho como em meio terrestre. Para os mamíferos terrestres, os mapas incluem todo o território continental e insular. Para os mamíferos marinhos,
Barbosa, A. Márcia   +3 more
core  

Host–Parasite Interaction Networks of Helminths of Sigmodontine Rodents in Two Different Areas of the Brazilian Atlantic Forest

open access: yesEcological Research, Volume 41, Issue 3, May 2026.
Two helminth‐rodent networks were analyzed for two distinct areas. Network modularity, nestedness, and degree of specialization were calculated for each network. Higher network modularity than nestedness and high network specialization were observed in both networks, suggesting functional and/or taxonomic specialization between helminth species and ...
Thiago dos Santos Cardoso   +7 more
wiley   +1 more source

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