Mapping the spatial configuration of hybridization risk for an endangered population of the European wildcat (Felis silvestris silvestris) in Scotland
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- 作者：Kerry Kilshaw ; Robert A. Montgomery ; Ruairidh D. Campbell…
- 关键词：Camera ; trap ; Distribution ; Felis silvestris silvestris ; Hybridization ; Occupancy ; Wildcat
- 刊名：Acta Theriologica
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：61
- 期：1
- 页码：1-11
- 全文大小：1,348 KB
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Robert A. Montgomery (1) (2)
Ruairidh D. Campbell (3)
David A. Hetherington (4)
Paul J. Johnson (1)
Andrew C. Kitchener (6) (7)
David W. Macdonald (1)
Joshua J. Millspaugh (5)
1. Wildlife Conservation Research Unit, Recanti-Kaplan Centre, Tubney House, Department of Zoology, University of Oxford, Abingdon Road, Tubney, OX13 5QL, Oxon, UK
2. Department of Fisheries and Wildlife, Michigan State University, 480 Wilson Road, 13 Natural Resources Building, East Lansing, MI, 48824, USA
3. Royal Zoological Society of Scotland, Edinburgh Zoo, Edinburgh, Scotland, EH12 6TS, UK
4. Cairngorms National Park Authority, 14 The Square, Grantown on Spey, Scotland, PH26 3HG, UK
6. Department of Natural Sciences, National Museums Scotland, Chambers Street, Edinburgh, EH1 1JF, USA
7. Institute of Geography, School of GeoSciences, University of Edinburgh, Drummond Street, Edinburgh, EH8 9XP, UK
5. Department of Fisheries and Wildlife Sciences, University of Missouri, 302 Natural Resources Building, Columbia, MO, 65211, USA - 刊物主题：Zoology; Animal Physiology; Behavioural Sciences; Animal Ecology; Evolutionary Biology; Animal Anatomy / Morphology / Histology;
- 出版者：Springer Berlin Heidelberg
- ISSN：2190-3743
文摘
The wildcat in Scotland, UK, is currently at risk of extinction because of hybridization with feral domestic cats (ferals) and hybrids (wildcat × domestic cat crosses). Conservation efforts are hampered by limited information on the distribution of these three cat types and the spatial variation in hybridization risk. From January 2010 to July 2013, we conducted widespread camera-trapping surveys throughout northern Scotland to document the distribution of ferals, hybrids, and wildcats. Using single-season occupancy models, we predicted the probability of occupancy for these three cat types across Scotland. Over 49,031 camera-trapping days, we had 87 captures (photo of a cat at a camera-trap station within a 24-h period) of wildcats, 145 captures of hybrids, and 193 captures of ferals. At over 48 % of the camera-trap stations where we detected wildcats, we also detected ferals or hybrids. We predicted wildcat occupancy as a function of habitat covariates. Wildcat occupancy probability increased in habitat with a higher proportion of mixed woodland habitat and decreased in habitat with more edge (transition from closed to open habitats). Hybrids showed a clear overlap in their distribution pattern with both ferals and wildcats. The results indicate that wildcats in Scotland are at risk of hybridization across much of their current distribution from ferals and/or hybrids. In particular, hybrids have an increased probability of occupying much of the same habitat as wildcats compared to ferals, supporting recent suggestions that hybrids may pose a significant additional hybridization threat by facilitating gene flow between wildcats and ferals. Keywords Camera-trap Distribution Felis silvestris silvestris Hybridization Occupancy Wildcat