Individual heterozygosity predicts translocation success in threatened desert tortoises

doi:10.1126/science.abb0421

GSTDTAP > 气候变化

DOI	10.1126/science.abb0421
	Individual heterozygosity predicts translocation success in threatened desert tortoises
	Peter A. Scott; Linda J. Allison; Kimberleigh J. Field; Roy C. Averill-Murray; H. Bradley Shaffer
	2020-11-27
发表期刊	Science
出版年	2020
英文摘要	As more species become highly threatened because of human activity, there has been an increasing push to understand how best to reintroduce or translocate individuals from wild or captive populations. Suggestions have varied from choosing individuals from the most environmentally similar regions to choosing those that might have the best ability to adapt to new environments. Scott et al. used long-term data collected during translocations of Mojave Desert tortoises, including animals formerly kept as pets, to test these questions. Although the overall rates of survival for all tortoises at the site (both reintroduced and native) were extremely low, translocated individuals with the highest heterozygosity survived at much higher rates than those determined to be similar to the target population. Science , this issue p. [1086][1] Anthropogenic environmental modification is placing as many as 1 million species at risk of extinction. One management action for reducing extinction risk is translocation of individuals to locations from which they have disappeared or to new locations where biologists hypothesize they have a good chance of surviving. To maximize this survival probability, the standard practice is to move animals from the closest possible populations that contain presumably related individuals. In an empirical test of this conventional wisdom, we analyzed a genomic dataset for 166 translocated desert tortoises ( Gopherus agassizii ) that either survived or died over a period of two decades. We used genomic data to infer the geographic origin of translocated tortoises and found that individual heterozygosity predicted tortoise survival, whereas translocation distance or geographic unit of origin did not. Our results suggest a relatively simple indicator of the likelihood of a translocated individual’s survival: heterozygosity. [1]: /lookup/doi/10.1126/science.abb0421
领域	气候变化 ; 资源环境
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/304883
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Peter A. Scott,Linda J. Allison,Kimberleigh J. Field,et al. Individual heterozygosity predicts translocation success in threatened desert tortoises[J]. Science,2020.
APA	Peter A. Scott,Linda J. Allison,Kimberleigh J. Field,Roy C. Averill-Murray,&H. Bradley Shaffer.(2020).Individual heterozygosity predicts translocation success in threatened desert tortoises.Science.
MLA	Peter A. Scott,et al."Individual heterozygosity predicts translocation success in threatened desert tortoises".Science (2020).