Results 51 to 60 of about 2,891 (183)
Mammalian Rest/Activity Patterns Explained by Physiologically Based Modeling [PDF]
, 2013 Circadian rhythms are fundamental to life. In mammals, these rhythms are generated by pacemaker neurons in the suprachiasmatic nucleus (SCN) of the hypothalamus.
Fulcher, B. D. +3 more
core +3 more sources
Reproductive correlates of social network variation in plurally breeding degus (Octodon degus) [PDF]
Animal Behaviour, 2013 Studying the causes and reproductive consequences of social variation can provide insight into the evolutionary basis of sociality. Individuals are expected to behave adaptively to maximize reproductive success, but reproductive outcomes can also depend on group structure.
Wey, Tina W. +3 more
openaire +7 more sources
Female home range size is regulated by resource distribution and intraspecific competition: a long-term field study [PDF]
, 2010 The size of an individual’s home range is an important feature, influencing reproduction and survival, but it can vary considerably among both populations and individuals.
Bleeker, M +9 more
core +1 more source
Seasonal variation in the degu (Octodon degus) endocrine stress response
General and Comparative Endocrinology, 2014 Many wild animals show seasonal variation in circulating levels of stress hormones. Seasonal changes in the stress response may help animals better cope with the different challenges faced during each life history stage. We determined the seasonal stress profile of wild, free-living degus in Chile. Female degus were sampled during non-breeding (January)
Bauer, Carolyn M. +3 more
openaire +5 more sources
Frontiers in Forests and Global Change, 2023 IntroductionBiotic interactions are a crucial component of the plant regeneration process, which has been traditionally studied at more local scales, providing the tools for planning and decision-making.
Ignacio Núñez-Hidalgo +8 more
doaj +1 more source
Reflections on the Utility of the Retina as a Biomarker for Alzheimer's Disease: A Literature Review. [PDF]
, 2019 As a part of the central nervous system, the retina may reflect both physiologic processes and abnormalities related to diseases of the brain. Indeed, a concerted effort has been put forth to understand how Alzheimer's disease (AD) pathology may manifest
Honma, Patrick +2 more
core +1 more source
Female degus (Octodon degus) monitor their environment while foraging socially
Animal Cognition, 2008 Vigilance or scanning involves interruptions in foraging behavior when individuals lift their heads and conduct visual monitoring of the environment. Theoretical considerations assume that foraging with the "head down", and scanning ("head up") are mutually exclusive activities, such that foraging precludes vigilance. We tested this generalization in a
Quirici, Veronica +3 more
openaire +5 more sources
Gayana, 2018 A total of 13 individuals of the Abrocoma bennetti rodent were captured and 354 ectoparasites belonging to 10 different species were collected and analyzed. The most abundant species was a Phithraptera, Monogyropus longus (62%), followed by Siphonaptera
Andrea Paz Yáñez-Meza +2 more
doaj +1 more source
Habitat type influences endocrine stress response in the degu (Octodon degus)
General and Comparative Endocrinology, 2013 While many studies have examined whether the stress response differs between habitats, few studies have examined this within a single population. This study tested whether habitat differences, both within-populations and between-populations, relate to differences in the endocrine stress response in wild, free-living degus (Octodon degus).
Bauer, Carolyn M. +7 more
openaire +5 more sources
IMPORTANCE OF BURROW-ENTRANCE MOUNDS OF GUNNISON'S PRAIRIE DOGS (CYNOMYS GUNNISONI) FOR VIGILANCE AND MIXING OF SOIL [PDF]
, 2012 Aboveground mounds and underground burrows are multifunctional and influence behavior and habitat of Gunnison's prairie dogs (Cynomys gunnisoni). Four colonies were studied June September 2004 to examine function of mounds with respect to vigilance for ...
Drickamer, Lee C. +2 more
core +1 more source