Results 51 to 60 of about 25,241 (133)

Systematics of Marmosa Subgenus Micoureus With Emphasis in ‘rapposa’ Group (Didelphidae, Marmosini): Geographic Variation and Revalidation of M. budini

open access: yesZoologica Scripta, EarlyView.
ABSTRACT Micoureus is the most species‐rich subgenus within the genus Marmosa. Conflicting arrangements regarding the number of species comprising this subgenus have been proposed and the validity of M. budini has been debated. Here, we used an approach integrating genetic and morphological data were conducted to reanalyze the ‘rapposa’ group ...
Maria Clara Santos Ribeiro   +3 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

The Franciscana (Pontoporia blainvillei) in the Northern Limit of the FMA II: Strandings and Habitat Use in Ilha Grande Bay

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT The presence of the franciscana (Pontoporia blainvillei) at the northern limit of the FMA II was investigated using a range of methods, including monitoring of strandings, boat surveys, and passive acoustic monitoring (PAM). Franciscana strandings were recorded within the distributional gap between Macaé (22°55′ S) and Ilha Grande (23°09′ S ...
Alexandre F. Azevedo   +10 more
wiley   +1 more source

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

Habitat Suitability for a Unique, Fully Marine American Manatee (Trichechus manatus) Population Primarily Depends on Presence of Submarine Freshwater Springs

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT The American manatee (Trichechus manatus) requires freshwater mainly from rivers and springs to maintain osmoregulatory balance in saline environments. However, in Brazil's semi‐arid Potiguar Basin, manatees now rely solely on submarine freshwater springs because hypersaline estuaries have become unsuitable sources of freshwater.
A. C. O. Meirelles   +7 more
wiley   +1 more source

Fauna de bosques con Ceroxylon quindiuense (Arecaceae) y sus alrededores en una región de los Andes centrales colombianos

open access: yesActa Biológica Colombiana
Los palmares de Ceroxylon quindiuense hacen parte de bosques de niebla, que han sido uno de los ecosistemas más vulnerables pero, a la vez, únicos y estratégicos de los Andes colombianos, por su gran valor en términos de servicios ecosistémicos y ...
Laura Daniela Rojas-Sandino   +5 more
doaj   +1 more source

The role of the water voles (Arvicola, Rodentia) in the Quatemary

open access: yesEstudios Geologicos, 1999
Los arvicólidos son roedores que tienen la morfología de la corona de los dientes formada por una secuencia de pliegues de esmalte que se asemeja a la curva y=sen f(x). Las especies actuales del género Arvicola cumplen en la morfología del molar mI, seis
A. Ruiz Bustos
doaj   +1 more source

Functional divergence drives the prevalence of low‐abundance species in bat assemblages

open access: yesFunctional Ecology, Volume 40, Issue 6, Page 1587-1602, June 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecological communities are structured by a few common species, while most occur at low abundance. Understanding the drivers of this widespread pattern raises fundamental questions about community assembly rules and is important for applied ecology for identifying ...
Andrés F. Ramírez‐Mejía   +3 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  

Spatial Ecology and Habitat Selection by Jaguars and Pumas in a Protected Area in the Atlantic Forest of Brazil

open access: yesAustral Ecology, Volume 51, Issue 6, June 2026.
ABSTRACT Understanding animal distribution is crucial for elucidating natural history, population dynamics, and inter‐ and intraspecific interactions. This knowledge informs the planning and evaluation of management and conservation strategies, particularly for sympatric, scarce, and threatened species such as jaguars (Panthera onca) and pumas (Puma ...
Ricardo Corassa Arrais   +4 more
wiley   +1 more source

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