Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3996/072016-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
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ISSN | 1944-687X |
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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