Arid
DOI10.3996/072016-JFWM-057
A Preliminary Range-Wide Distribution Model for the Sacramento Valley Red Fox
Sacks, Benjamin N.1; Statham, Mark J.1; Wittmer, Heiko U.2
通讯作者Sacks, Benjamin N.
来源期刊JOURNAL OF FISH AND WILDLIFE MANAGEMENT
ISSN1944-687X
出版年2017
卷号8期号:1页码:28-38
英文摘要

The Sacramento Valley red fox Vulpes vulpes patwin of California is a newly named subspecies recently found to be distinct both from other native red foxes and nearby introduced populations. The Sacramento Valley red fox experienced a historical demographic bottleneck resulting in a critically small genetic effective population size, causing concern over its current status and management requirements, yet little is known about its contemporary abundance, demographic trajectory, or habitat use. The hot, arid Sacramento Valley contrasts starkly in climate and physiography with the boreal habitats of other indigenous red foxes in western North America, indicating the need to obtain information specifically on the habitat requirements of this subspecies. A 3-y effort to locate reproductive den sites throughout the Sacramento Valley resulted in 42 independent dens, which we used to obtain preliminary information on habitat use and to develop a distribution model for this subspecies, and 28 Sacramento Valley red foxes killed by vehicles, which we used as independent data to test the models. Foxes were present significantly more than expected in grasslands and less than expected in wetlands and flooded agriculture and also tended to occur in proximity to human development, potentially as refuges from coyotes Canis latrans. We used Maxent to build predictive models. The best model, which incorporated vegetation/land-use classes and proximity to human development, identified 24% of the study area as predicted-presence habitat, which contained 76% of the den sites used to construct the model and 89% of independent locations used to test the model. Our model greatly narrowed the area over which foxes are predicted to occur and will facilitate future surveys to assess occupancy and ultimately abundance and population trends.


英文关键词California habitat Maxent Sacramento Valley red fox species distribution model Vulpes vulpes patwin
类型Article
语种英语
国家USA ; New Zealand
收录类别SCI-E
WOS记录号WOS:000403145300003
WOS关键词SPECIES DISTRIBUTIONS ; VULPES-VULPES ; COYOTES ; CALIFORNIA ; EXPANSION ; IMPROVE ; RARE
WOS类目Biodiversity Conservation ; Ecology
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构University of California, Davis
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/200427
作者单位1.Univ Calif Davis, Sch Vet Med, Dept Populat Hlth & Reprod, Mammalian Ecol & Conservat Unit,Vet Genet Lab, One Shields Ave Old Davis Rd, Davis, CA 95616 USA;
2.Victoria Univ Wellington, Sch Biol Sci, POB 600, Wellington 6140, New Zealand
推荐引用方式
GB/T 7714
Sacks, Benjamin N.,Statham, Mark J.,Wittmer, Heiko U.. A Preliminary Range-Wide Distribution Model for the Sacramento Valley Red Fox[J]. University of California, Davis,2017,8(1):28-38.
APA Sacks, Benjamin N.,Statham, Mark J.,&Wittmer, Heiko U..(2017).A Preliminary Range-Wide Distribution Model for the Sacramento Valley Red Fox.JOURNAL OF FISH AND WILDLIFE MANAGEMENT,8(1),28-38.
MLA Sacks, Benjamin N.,et al."A Preliminary Range-Wide Distribution Model for the Sacramento Valley Red Fox".JOURNAL OF FISH AND WILDLIFE MANAGEMENT 8.1(2017):28-38.
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