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Noninvasive genetic sampling reveals intrasex territoriality in wolverines
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- Bischof, Richard (författare)
- Norwegian Univ Life Sci, Dept Ecol & Nat Resource Management, Hogskoleveien 12, N-1430 As, Norway.
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- Gregersen, Espen R. (författare)
- Norwegian Univ Life Sci, Dept Ecol & Nat Resource Management, Hogskoleveien 12, N-1430 As, Norway.
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- Broseth, Henrik (författare)
- Norwegian Inst Nat Res, Tungasletta 2, N-7004 Trondheim, Norway.
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- Norwegian Univ Life Sci, Dept Ecol & Nat Resource Management, Hogskoleveien 12, N-1430 As, Norway Norwegian Inst Nat Res, Tungasletta 2, N-7004 Trondheim, Norway. (creator_code:org_t)
- 2016-02-09
- 2016
- Engelska.
- Ingår i: Ecology and Evolution. - : Wiley. - 2045-7758. ; 6:5, s. 1527-1536
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Due to its conspicuous manifestations and its capacity to shape the configuration and dynamics of wild populations, territorial behavior has long intrigued ecologists. Territoriality and other animal interactions in situ have traditionally been studied via direct observations and telemetry. Here, we explore whether noninvasive genetic sampling, which is increasingly supplementing traditional field methods in ecological research, can reveal territorial behavior in an elusive carnivore, the wolverine (Gulo gulo). Using the locations of genotyped wolverine scat samples collected annually over a period of 12 years in central Norway, we test three predictions: (1) male home ranges constructed from noninvasive genetic sampling data are larger than those of females, (2) individuals avoid areas used by other conspecifics of the same sex (intrasexual territoriality), and (3) avoidance of same-sex territories diminishes or disappears after the territory owner's death. Each of these predictions is substantiated by our results: sex-specific differences in home range size and intrasexual territoriality in wolverine are patently reflected in the spatial and temporal configuration of noninvasively collected genetic samples. Our study confirms that wildlife monitoring programs can utilize the spatial information in noninvasive genetic sampling data to detect and quantify home ranges and social organization.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- Animal movements
- home range overlap
- kernel home range
- large carnivores
- resource selection function
- territory takeover
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