Nutritional response to different diet quality was examined in the subterranean rodent Ctenomys talarum (tuco-tuco). Animals maintained in captive conditions were fed with three plant species that differed in their fibre content. Tuco-tucos showed the ability to perform adjusts in short time lapse in response to diet quality; food ingestion, egestion ...
Martino, Natalia Silvana +2 more
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Multi-year longitudinal profiles of cortisol and corticosterone recovered from baleen of North Atlantic right whales (Eubalaena glacialis) [PDF]
© The Author(s), 2017. This is the author's version of the work. It is posted here under a nonexclusive, irrevocable, paid-up, worldwide license granted to WHOI. It is made available for personal use, not for redistribution.
Hunt, Kathleen E. +3 more
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Effect of ambient temperature on evaporative water loss in the subterranean rodent Ctenomys talarum
Subterranean rodents face unique thermoregulatory challenges. Evaporative water loss (EWL) is a crucial mechanism for maintaining heat balance in endotherms subjected to heat stress but also leads to potential dehydration. EWL depends on gradients of temperature and humidity between the surface of the individual and the surrounding environment ...
Baldo, María Belén +2 more
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Morphometry of paleocaves at the Chapadmalal "Formation" assigned to fossorial rodent Actenomys sp. (Rodentia, Caviomorpha), Paedotherium (Notoungulata), and to other fossil mammals [PDF]
En la “Formación” Chapadmalal, aflorante en las barrancas que se extienden desde Mar del Plata a Miramar, se diferencian paleocuevas que han sido asignadas al roedor fósil Actenomys sp. (Rodentia, Caviomorpha).
de Santi, Luciano Jose Maria +2 more
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Comparative Energetics of the Subterranean Ctenomys Rodents: Breaking Patterns [PDF]
Subterranean mammals show lower mass independent basal metabolic rates (BMR), and several competing hypotheses were suggested to explain how microenvironmental conditions and underground life affect subterranean mammalian energetics. Two of these are the
Antenucci, Carlos Daniel +2 more
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Prenatal predatory stress in a wild species of subterranean rodent: Do ecological stressors always have a negative effect on the offspring? [PDF]
In pregnant females, a failed predatory event not only induces individual responses but also represents a significant change in the developmental environment of the offspring, which may lead to modifications in their phenotype that may persist at ...
Brachetta, Valentina +5 more
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Digging for answers: contributions of density- and frequency-dependent factors on ectoparasite burden in a social mammal [PDF]
Due to the density-dependent nature of parasite transmission parasites are generally assumed to constrain the evolution of sociality. However, evidence for a correlation between group size and parasite burden is equivocal, particularly for mammals.
Archer, EK +3 more
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Parasites and pathogens can play a significant role in shaping the genetic diversity of host populations, particularly at genes associated with host immune response. To explore this relationship in a natural population of vertebrates, we characterized Major Histocompatibility Complex (MHC) variation in the subterranean rodent Ctenomys talarum (the ...
Cutrera, Ana Paula +2 more
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Familiarity and mating behavior in the subterranean rodent Ctenomys talarum (tuco-tuco)
Biological odors that convey cues regarding individual identity are known to alter mating behavior in some rodents. Deposition of chemical signals by males on the substrate could give females information about their neighbors’ identity and allow familiarization with their odors.
Zenuto, Roxana Rita +2 more
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