2022
DOI: 10.1002/jwmg.22290
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Robustness of fecal DNA spatial capture‐recapture to clustered space‐use by tule elk

Abstract: Spatially explicit capture-recapture (SCR) approaches using noninvasive fecal DNA (fDNA) are applied increasingly to obtain statistically robust abundance estimates for various wildlife species. But SCR has not been widely used for more gregarious species, such as elk (Cervus canadensis). Because of their heterogeneous use of the landscape and grouping behavior, elk present novel challenges to sampling efficiency and statistical assumptions. We employed fDNA SCR and a stratified random sampling approach to est… Show more

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Cited by 4 publications
(5 citation statements)
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“…In Livingstone's fruit bats (Pteropus livingstonii), mean genotyping success rate was 7% (Ibouroi et al 2021). In semi-captive elk, amplification success was 68% (Batter et al 2022). Even with variation in amplification success between years, our study exhibits similar genotyping success rates to previous efforts and demonstrates the efficacy of this technique for rodents in arid study systems.…”
Section: Discussionsupporting
confidence: 64%
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“…In Livingstone's fruit bats (Pteropus livingstonii), mean genotyping success rate was 7% (Ibouroi et al 2021). In semi-captive elk, amplification success was 68% (Batter et al 2022). Even with variation in amplification success between years, our study exhibits similar genotyping success rates to previous efforts and demonstrates the efficacy of this technique for rodents in arid study systems.…”
Section: Discussionsupporting
confidence: 64%
“…This method has the potential to reduce field expenses and bureaucratic burdens related to live handling, eliminate welfare risks, as well as provide insight into individual differences in trap-capture probabilities that may bias traditional mark-recapture estimates. Noninvasive genetic sampling has been widely implemented, primarily in population estimates for large, wide-ranging carnivores (Mondol et al 2009;Stenglein et al 2010;Owen-Ramos et al 2022) or ungulates (Henk et al 2022;Batter et al 2022). The technique has also been used for lagomorphs (DeMay et al 2017;Uhrig 2019;Bauer et al 2020).…”
Section: Introductionmentioning
confidence: 99%
“…Cache Creek had a similarly low N e / N c ratio. In particular, the Tupman herd size has fluctuated between 25 and 35 individuals over the past decade (CDFW 2018 a ), whereas the most recent estimate of N c for the Cache Creek population (95% CI) was 259–397 individuals (Batter et al 2022), resulting in approximate N e / N c ratios of 0.06–0.08 for Tupman and 0.04–0.06 for Cache Creek. In contrast, the estimated N e of the other 2 populations were much higher relative to the census population estimates.…”
Section: Discussionmentioning
confidence: 99%
“…Tissue and blood samples consisted of muscle or skin and were stored in desiccant after collection during 1995-2022. Genotypes for fecal samples had been analyzed as part of prior research projects conducted during 2017-2019, allowing us to select only a single genotype per individual for this study (Batter et al 2021(Batter et al , 2022Sacks et al 2022), which was described in detail for the same 427 fecal samples by Batter et al (2021). Specifically, only fecal DNA genotypes with ≥18 of the 20 loci were retained (Batter et al 2021) and genotype error rates for those genotypes were estimated at 0.011 allelic dropout and <0.001 false alleles (Batter et al 2022).…”
Section: Samples and Laboratory Analysismentioning
confidence: 99%
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