Results 71 to 80 of about 5,690 (270)

A glimpse on the pattern of rodent diversification: a phylogenetic approach. [PDF]

open access: yes, 2012
BACKGROUND: Development of phylogenetic methods that do not rely on fossils for the study of evolutionary processes through time have revolutionized the field of evolutionary biology and resulted in an unprecedented expansion of our knowledge about the ...
Dimitrov, Dimitar   +3 more
core   +3 more sources

Are owl pellets good estimators of prey abundance? [PDF]

open access: yes, 2016
Some ecologists have been skeptics about the use of owl pellets to estimate small mammal's fauna. This is due to the assumptions required by this method: (a) that owls hunt at random, and (b) that pellets represent a random sample from the environment ...
Adrián Monjeau   +40 more
core   +2 more sources

Taxonomic identification using geometric morphometric approach and limited data: an example using the upper molars of two sympatric species of Calomys (Cricetidae: Rodentia)

open access: yesZoologia (Curitiba), 2017
The taxonomic identification of micromammals might be complicated when the study material is fragmented, as it is the case with pellets and fossil material.
Natália Lima Boroni   +3 more
doaj   +1 more source

Loxodontomys pikumche (Rodentia, Cricetidae): nueva especie para Argentina [PDF]

open access: yes, 2009
We report the first record of occurrence of Loxodontomys pikumche Spotorno et al., 1998, in the Central Andes of Argentina. We briefly describe external characters, skull, karyotype, and habitat; also, we provide general comparisons with the other known ...
Novillo, Agustina   +2 more
core  

A new species of Andean mouse of the genus Thomasomys (Cricetidae, Sigmodontinae) from the eastern Andes of Ecuador

open access: yesVertebrate zoology, 2022
We name and describe a new species of Andean mouse from the eastern slope of the Andes of central Ecuador (Sangay National Park). This rodent is large-bodied (head-body length 167–184 mm) inhabiting the wet montane forest between 3,400–3,900 m in ...
Thomas E. Lee Jr.   +2 more
semanticscholar   +1 more source

New distribution reports of Rhagomys rufescens (Rodentia: Sigmodontinae) Thomas, 1886 [PDF]

open access: yesCheck List, 2012
Rhagomys rufescens is a rare, arboreal sigmodontine rodent endemic to the Brazilian Atlantic Forest biome. This species is known from eight localities in Brazil. Here we present a new report based on four individuals of this species registered in Serra do Ouro Branco, municipality of Ouro Branco (Minas Gerais, Brazil). One juvenile male, one adult male
Braga, Caryne, Pires, Maria
openaire   +3 more sources

Further support for a palaearctic origin of Leishmania

open access: yesMemorias do Instituto Oswaldo Cruz, 2000
The fossil record and systematics of murid rodents, reservoirs of zoonotic cutaneous leishmaniasis in the Palaearctic, Oriental, African, Nearctic and Neotropical, strongly support a Palaearctic origin of Leishmania.
Sara F Kerr   +2 more
doaj   +1 more source

Geographic Variation in Cranial Morphology of the Southern Mountain Cavy, Microcavia australis (Rodentia, Caviidae): Taxonomic Implications, with the Description of A New Species [PDF]

open access: yes, 2017
We analyzed the geographic variation in cranial morphology of the Southern Mountain Cavy, Microcavia australis, throughout of its distributional range. Our analysis allows us to recognize three geographically allopatric morphotypes.
D Elía, Guillermo   +3 more
core   +1 more source

Metabolic rates and thermoregulatory characteristics of Akodon azarae (Rodentia: Sigmodontinae) [PDF]

open access: yesRevista chilena de historia natural, 2000
En este trabajo fueron evaluadas, para Akodon azarae (Fisher 1829), la tasa metabolica basal (BMR) y de actividad diaria asi como la capacidad termorregulatoria y la posible existencia de torpor. La BMR no presento diferencias estadisticas con la esperada por la ecuacion de Kleiber asi como con la esperada para especies filogeneticamente relacionadas ...
ANTINUCHI, C. DANIEL, BUSCH, CRISTINA
openaire   +3 more sources

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