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Activity patterns of eurasian lynx are modulated by light regime and individual traits over a wide latitudinal range

Heurich, Marco and Andren, Henrik and Persson, Jens and Rauset, Geir Rune and Linnell, John D.C. (2014). Activity patterns of eurasian lynx are modulated by light regime and individual traits over a wide latitudinal range. PloS one. 9:12, 1-20
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Official URL: http://dx.doi.org/10.1371/journal.pone.0114143

Abstract

The activity patterns of most terrestrial animals are regarded as being primarily influenced by light, although other factors, such as sexual cycle and climatic conditions, can modify the underlying patterns. However, most activity studies have been limited to a single study area, which in turn limit the variability of light conditions and other factors. Here we considered a range of variables that might potentially influence the activity of a large carnivore, the Eurasian lynx, in a network of studies conducted with identical methodology in different areas spanning latitudes from 49 degrees 7'N in central Europe to 70 degrees 00'N in northern Scandinavia. The variables considered both light conditions, ranging from a day with a complete day-night cycle to polar night and polar day, as well as individual traits of the animals. We analysed activity data of 38 individual free-ranging lynx equipped with GPS-collars with acceleration sensors, covering more than 11,000 lynx days. Mixed linear additive models revealed that the lynx activity level was not influenced by the daily daylight duration and the activity pattern was bimodal, even during polar night and polar day. The duration of the active phase of the activity cycle varied with the widening and narrowing of the photoperiod. Activity varied significantly with moonlight. Among adults, males were more active than females, and subadult lynx were more active than adults. In polar regions, the amplitude of the lynx daily activity pattern was low, likely as a result of the polycyclic activity pattern of their main prey, reindeer. At lower latitudes, the basic lynx activity pattern peaked during twilight, corresponding to the crepuscular activity pattern of the main prey, roe deer. Our results indicated that the basic activity of lynx is independent of light conditions, but is modified by both individual traits and the activity pattern of the locally most important prey.

Authors/Creators:Heurich, Marco and Andren, Henrik and Persson, Jens and Rauset, Geir Rune and Linnell, John D.C.
Title:Activity patterns of eurasian lynx are modulated by light regime and individual traits over a wide latitudinal range
Series/Journal:PloS one (1932-6203)
Year of publishing :2014
Depositing date:2015
Volume:9
Number:12
Page range:1-20
Number of Pages:20
Publisher:Public Library of Science
ISSN:1932-6203
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:L Animal production > L20 Animal ecology
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
Agrovoc terms:predation, lynxes
Keywords:Predation, Lynxes, Twilight
URN:NBN:urn:nbn:se:slu:epsilon-e-2388
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2388
Additional ID:
Type of IDID
Web of Science (WoS)000347215600012
DOI10.1371/journal.pone.0114143
ID Code:11838
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:09 Feb 2015 14:53
Metadata Last Modified:19 Feb 2015 03:19

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