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Life Underground: The Biology of Subterranean Rodents
SUBTERRANEAN rodents are intriguing subjects for research. On the one hand they display extreme variability in social organisation and life history, and exhibit a range of unique adaptations inExpand
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Male mating behaviour and patterns of sperm precedence in Arctic ground squirrels
Ground squirrels (genus Spermophilus) display considerable interspecific variation in male reproductive behaviour. Although male Arctic ground squirrels, S. parryii plesius, are territorial duringExpand
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Oxytocin and vasopressin receptor distributions in a solitary and a social species of tuco‐tuco (Ctenomys haigi and Ctenomys sociabilis)
The neuropeptides oxytocin and vasopressin and their receptors have been implicated in elements of mammalian social behavior such as attachment to mates and offspring, but their potential role inExpand
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Bateman's Principle in Cooperatively Breeding Vertebrates: The Effects of Non-breeding Alloparents on Variability in Female and Male Reproductive Success1
Abstract The sex-specific slopes of Bateman's gradients have important implications for understanding animal mating systems, including patterns of sexual selection and reproductive competition.Expand
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Microsatellite variation in solitary and social tuco-tucos: molecular properties and population dynamics
Variation at 15 microsatellite loci was characterized for a population of the solitary Patagonian tuco-tuco (Ctenomys haigi) and a population of group-living colonial tuco-tuco (C. sociabilis), bothExpand
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Seasonal changes in glucocorticoid and testosterone concentrations in free-living arctic ground squirrels from the boreal forest of the Yukon
We examined how glucocorticoid and testosterone concentrations changed from spring to summer by livetrapping free-living populations of arctic ground squirrels (Spermophilus parryii). The primaryExpand
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Cooperating to compete: altruism, sexual selection and causes of male reproductive cooperation
Competition among males for access to reproductive opportunities is a central tenet of behavioural biology that has critical implications for studies of mating systems, sexual selection and theExpand
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Genetic structure of an isolated population of mantled howler monkeys (Alouatta palliata) on Barro Colorado Island, Panama
Habitat fragmentation may influence genetic variability through reductions in population size and the physical isolation of conspecifics. We explored the effects of these factors on genetic diversityExpand
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