By Barry G. Lovegrove (auth.), Thomas Ruf, Claudia Bieber, Walter Arnold, Eva Millesi (eds.)
This ebook summarises the latest info on seasonal model in animals. themes contain animal hibernation, day-by-day torpor, thermoregulation, warmth creation, metabolic melancholy, biochemical variations, neurophysiology and effort stability. The participants to this e-book current interdisciplinary examine at a number of degrees starting from the molecular to the ecophysiological, in addition to evolutionary ways. The chapters of this e-book offer unique info now not released in other places, which makes it the main updated, accomplished resource of data on those fields.
The book’s subchapters correspond to displays given on the 14th overseas Hibernation Symposium in August 2012 in Austria. this can be a very profitable sequence of symposia (held each 4 years for the reason that 1959) that pulls major researchers within the box. just like the earlier symposia, this assembly – and therefore the ebook – is aimed not just at hibernation yet at protecting the whole diversity of animal diversifications to seasonal environments. For the subsequent 4 years, this booklet will function the state of the art reference paintings for graduate scholars and scientists lively during this box of body structure and ecology.
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Extra resources for Living in a Seasonal World: Thermoregulatory and Metabolic Adaptations
All animals were allowed to become normothermic and fully capable of coordinated movements before metabolic rate measurements were made. All measurements were carried out at 29 ± 1°C, the thermoneutral zone of this species (Whittington-Jones and Brown 1999). Measurements were conducted at a sampling interval of one sample per second over a 4-h period. BMR was calculated from the lowest mean oxygen consumption over a period of 5 min in a resting animal. All animal experiments were approved by the Nelson Mandela Metropolitan University (NMMU) animal ethics committee (animal ethics clearance no.
Multiple species have been shown to be active, and perform optimally, at Tb close to or \30°C, the most commonly used cut-off Tb (Brice et al. 2002). 8°C (Warnecke and Geiser 2009). The distinction between the two states is especially difficult in baso- and meso-endotherms (sensu Lovegrove 34 C. I. Canale et al. Fig. 1 Body temperature of a nocturnal free-ranging male Setifer setosus over the course of 7 days during the rainy (breeding season). Arrows indicate times which the animal was located and found to be active (solid) or dashed (resting).
Moholi also undergoes torpid states only during the cold and dry season (from April to end of August) when food abundance and Ta are low, but heterothermy appears to be neither physiologically necessary nor possible for all individuals. Food-deprived juvenile and subadult individuals always entered torpor during the cold-dry season, but never during the hot-wet season. The length of torpor bouts seems to depend mainly on Ta (Nowack et al. 2010, unpublished data). C. medius only show daily torpor at the beginning of the hibernation season, so-called test drops (Dausmann et al.