Arid
DOI10.1002/jwmg.21236
Noninvasive genetic spatial capture-recapture for estimating deer population abundance
Brazeal, Jennifer L.1; Weist, Terri2; Sacks, Benjamin N.3
通讯作者Brazeal, Jennifer L.
来源期刊JOURNAL OF WILDLIFE MANAGEMENT
ISSN0022-541X
EISSN1937-2817
出版年2017
卷号81期号:4页码:629-640
英文摘要

Informed management of wildlife populations requires the accurate estimation of abundance, sex ratio, and other population parameters. For deer (Odocoileus spp.), the use of closed-population, capture-recapture (CR) methods, in conjunction with noninvasive DNA sampling, has become increasingly practical, but, up to now, these methods have been used in a non-spatial modeling framework, which has limited their utility for population-level inferences. In particular, extrapolation of plot-level CR abundance estimates to the population required the use of multipliers of unknown reliability and potential bias. Spatially explicit capture-recapture (SCR) models provide an integrated framework for directly estimating density as a function of spatial and habitat variables at landscape scales. We used fecal DNA samples in conjunction with SCR to estimate density, sex ratio, and habitat correlates to density for a mule deer (O. hemionus) population across a large (approximate to 500km(2)) area in the central Sierra Nevada Range, California, USA during 2013 and 2014. We surveyed 24 random transects within 4 30-km(2) sites representative of the study area. Based on 411 samples genotyped at a sex marker and 8-10 microsatellite loci, the sex-ratio for the study area was 62 (95% CI=41-93) males/100 females in 2013 and 65 (95% CI=45-94) males/100 females in 2014. Using SCR, we estimated density at 5.0 (95% CI=2.3-7.8) deer/km(2) in 2013 and 5.1 (95% CI=3.1-7.2) deer/km(2) in 2014. In comparison, non-spatial CR analysis produced density estimates on average 60% higher, likely reflecting bias resulting from use of the commonly employed mean maximum recapture distance (MMRD) to estimate effective sampling area. The SCR models indicated that density was effectively homogeneous throughout the study area, with no strong relationship to habitat correlates. Altogether, these results demonstrate the utility of noninvasive fecal DNA methods in a SCR framework for estimation of abundance and density in deer populations at landscape scales. (c) 2017 The Wildlife Society


Through an application in a mule deer population in California, USA, we demonstrated the utility of spatially explicit capture recapture (SCR) analysis of fecal DNA samples to obtain precise estimates of abundance and density of mule deer at the population level. This method can provide a particularly useful way for wildlife managers to monitor deer abundance in forested areas where visibility limits feasibility of aerial surveys. The SCR models additionally allow for integration of environmental variables as predictors of density and estimation of survival and recruitment in longer term studies.


英文关键词abundance California density habitat modeling mule deer noninvasive Odocoileus hemionus spatially explicit capture-recapture
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000400029500010
WOS关键词BLACK-TAILED DEER ; DESERT MULE DEER ; DENSITY-ESTIMATION ; GENOTYPING ERRORS ; HABITAT USE ; SELECTION ; SURVIVAL ; FIELD ; SIZE ; ELK
WOS类目Ecology ; Zoology
WOS研究方向Environmental Sciences & Ecology ; Zoology
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/2XILL650/200894
作者单位1.Univ Calif Davis, Mammalian Ecol & Conservat Unit, Vet Genet Lab, One Shields Ave,Old Davis Rd, Davis, CA 95616 USA;
2.Calif Dept Fish & Wildlife, 1701 Nimbus Rd, Rancho Cordova, CA 95670 USA;
3.Univ Calif Davis, Mammalian Ecol & Conservat Unit, Vet Genet Lab, Dept Populat Hlth & Reprod, One Shields Ave,Old Davis Rd, Davis, CA 95616 USA
推荐引用方式
GB/T 7714
Brazeal, Jennifer L.,Weist, Terri,Sacks, Benjamin N.. Noninvasive genetic spatial capture-recapture for estimating deer population abundance[J]. University of California, Davis,2017,81(4):629-640.
APA Brazeal, Jennifer L.,Weist, Terri,&Sacks, Benjamin N..(2017).Noninvasive genetic spatial capture-recapture for estimating deer population abundance.JOURNAL OF WILDLIFE MANAGEMENT,81(4),629-640.
MLA Brazeal, Jennifer L.,et al."Noninvasive genetic spatial capture-recapture for estimating deer population abundance".JOURNAL OF WILDLIFE MANAGEMENT 81.4(2017):629-640.
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