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Mostrando ítems 151-160 de 184
The forelimbs of Octodontidae (Rodentia: Mammalia): substrate use, morphology, and phylogenetic signal
(Elsevier Gmbh, 2021-02)
Rodents of the family Octodontidae, endemic to South America, represent a group with low taxonomic richness group (six genera and 14 species) but have great ecomorphological diversity with epigean, semi-fossorial, fossorial, ...
Período de atividade e padrões de uso do espaço do rato-de-espinho Clyomys laticeps (Thomas, 1909) (Rodentia: Echimyidae)Activity period and space use patterns of the spiny rat Clyomys laticeps (Thomas, 1909) (Rodentia: Echimyidae)
(Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Ecologia e Conservação de Recursos Naturais, 2017)
Dispersión de hongos endófitos radicales por el roedor subterráneo Ctenomys knigthi y el efecto sobre plantas nativas del Desierto del Monte riojano
(2019-06-24)
El Desierto del Monte riojano es el hábitat natural de varias especies de roedores del género Ctenomys. Estos animales comúnmente llamados “tuco-tucos”, han sido descriptos como especies clave en los ecosistemas, debido a ...
Chromosomal variability in tuco-tucos (Ctenomys, Rodentia) from the Argentinean northeastern wetlands
(Conicet. Cricyt. Instituto Argentino de Investigación de las Zonas Áridas. Unidad de Zoología y Ecología Animal, 2015-12)
Chromosomal diversity is a key feature for understanding the evolution of mammalian species. Rodents, the most diversified taxon among mammals, depict a wide chromosomal diversity; the study of their karyomorphs has ...
Interpopulation differences in parasite load and variable selective pressures on MHC genes in Ctenomys talarum
(Alliance Communications Group Division Allen Press, 2014-08)
We explore potential geographic variation in the pathogen-mediated selective pressures acting on Major Histocompatibility Complex (MHC) loci in the subterranean rodent Ctenomys talarum, evaluating the impact of differences ...
Biomechanics and strategies of digging
(Springer, 2021)
In arid and semiarid ecosystems, digging and burrowing are common behaviors in many mammals looking for shelter, food, thermoregulation, etc. Many rodents, as tuco-tucos, may use both the foreclaws and incisors - according ...
Ecological Physiology and Behavior in the Genus Ctenomys
(Springer, 2021)
The understanding of the diversity of behavioral and physiological responses associated with the challenges of underground life requires expanding our attention to groups of underground rodents that have not yet been ...
An allometric analysis of sexual dimorphism in Ctenomys australis: integrating classic morphometry and functional performance in vivo
(Elsevier Gmbh, 2018-04)
The South American rodents of the genus Ctenomys (Rodentia, Hystricognathi), which use both forelimbs and incisors to dig, show strong, specialized morphological adaptations to living in the underground niche. In these ...
Variación estacional de la tasa metabólica de reposo en Ctenomys talarum (Rodentia, Ctenomyidae): ausencia de efectos ambientalesSeasonal variation of resting metabolic rate in Ctenomys talarum (Rodentia, Ctenomyidae): Absence of environmental effects
(Sociedad Argentina para el Estudio de los Mamíferos, 2014-12)
El género Ctenomys, roedores subterráneos endémicos de América del Sur, es un excelente modelo para evaluar la influencia de diversos factores sobre el metabolismo energético, en particular sobre la tasa metabólica de ...
Seasonal variations in plasma cortisol, testosterone, progesterone and leukocyte profiles in a wild population of tuco-tucos
(Zoological Society of London, 2013-02)
Studies addressing seasonal changes in hormone levels are important in order to understand the interplays between ecology and physiology. In this study, we evaluated seasonal variations in cortisol, testosterone, and ...