Movement modeling reveals the complex nature of the response of moose to ambient temperatures during summer
| Autor: | Remington J. Moll, Erling Johan Solberg, Robert A. Montgomery, Kyle M. Redilla, Joshua J. Millspaugh, Christer Moe Rolandsen, Bram Van Moorter |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Ecology 010604 marine biology & hydrobiology Global warming Climate change Thermoregulation Atmospheric sciences 010603 evolutionary biology 01 natural sciences Heat stress Genetics Environmental science Animal Science and Zoology Climate variation Threshold response Ecology Evolution Behavior and Systematics Nature and Landscape Conservation |
| Zdroj: | Journal of Mammalogy. 100:169-177 |
| ISSN: | 1545-1542 0022-2372 |
| DOI: | 10.1093/jmammal/gyy185 |
| Popis: | Rising ambient temperatures associated with global climate change threaten the persistence of numerous species of wildlife. Moose (Alces alces), for instance, are purported to experience heat stress occurring when ambient temperatures rise above specific seasonal temperature thresholds. These temperature thresholds, however, were established in a study that linked physiological changes in thermoregulation to ambient temperatures among a small study group of captive-reared moose. Here, we quantified movement rate of 127 moose GPS-tracked during summer from 2006 to 2010 in central Norway as a function of ambient temperature. We found little evidence of a threshold response in moose movement in relation to rising ambient temperatures during summer. We did, however, detect differences in moose movement in relation to temperature variation between daylight and twilight–night periods. Moose increased their movement in the twilight–night period when ambient temperatures were high, suggesting a compensatory response to climate variation. Our analysis identifies that dynamics of moose movement in relation to ambient temperature are complex and may not be well correlated with temperature thresholds that were previously described. |
| Databáze: | OpenAIRE |
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