The Effect of Molt on Oxygen Consumption of Yellow-bellied Marmots (marmota Flaviventris)
ثبت نشده
چکیده
l. Mean specific fro, of five adult female yellow-bellied marmots was significantly lower in postmolt individuals than in premolt animals. 2. Mean body temperature did not differ significantly between premolt and postmolt marmots. 3. Conductance was significantly lower in postmolt than in premolt marmots. 4. &cause body mass was significantly larger and total 00, significantly lower in postmolt than in premolt, the decrease in specific PO, is attributed to decreased conductance and not to the accumulation of metabolically inactive tissues.
منابع مشابه
Early play may predict later dominance relationships in yellow-bellied marmots (Marmota flaviventris).
Play has been defined as apparently functionless behaviour, yet since play is costly, models of adaptive evolution predict that it should have some beneficial function (or functions) that outweigh its costs. We provide strong evidence for a long-standing, but poorly supported hypothesis: that early social play is practice for later dominance relationships. We calculated the relative dominance r...
متن کاملElevation and vegetation determine Cryptosporidium oocyst shedding by yellow-bellied marmots (Marmota flaviventris) in the Sierra Nevada Mountains
Wildlife are increasingly recognized as important biological reservoirs of zoonotic species of Cryptosporidium that might contaminate water and cause human exposure to this protozoal parasite. The habitat range of the yellow-bellied marmot (Marmota flaviventris) overlaps extensively with the watershed boundaries of municipal water supplies for California communities along the foothills of the S...
متن کاملFaecal glucocorticoid metabolites and alarm calling in free-living yellow-bellied marmots.
When individuals of a variety of species encounter a potential predator, some, but not all, emit alarm calls. To explain the proximate basis of this variation, we compared faecal glucocorticoid metabolite concentrations in live-trapped yellow-bellied marmots (Marmota flaviventris) between occasions when they did and did not emit alarm calls. We found that marmots had significantly higher glucoc...
متن کاملFactors affecting oxygen consumption in wild-caught yellow-bellied marmots (Marmota flaviventris).
1. All age groups gained mass during the active season, but mass-gain of adult females was delayed during lactation. 2. The relationship of body mass to metabolic rate varied widely; when the relationship was significant, R2 varied from 10.3 to 72.6%. Body mass affects VO2 more during lactation than at any other period. 3. Mean VO2 of adult males was higher in June than that of adult, non-lacta...
متن کاملSocial Variety in the Yellow-bellied Marmot : a Population-behavioural System
Rates of amicable and agonistic behaviour are not correlated either within or between two colonies of Marmota flaviventris nor is there any consistent pattern of rates being higher in one colony than in the other . Rates of social behaviour are related to population density, the age-sex structure of the population, the individual behavioural characteristics of the residents and potential recrui...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002