| Scopus记录号: | 2-s2.0-85059622812
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| 论文题名: | How many and when? Optimising targeted gene flow for a step change in the environment |
| 作者: | Kelly E.; Phillips B.
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| 刊名: | Ecology Letters
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| ISSN: | 1461023X
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| 出版年: | 2019
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| 卷: | 22, 期:3 | | 起始页码: | 447
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| 结束页码: | 457
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| 语种: | 英语
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| 英文关键词: | Assisted gene flow
; conservation genetics
; evolutionary rescue
; population modelling
; population viability analysis
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| Scopus关键词: | Bufo marinus
; Dasyurus hallucatus
; Metatheria
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| 英文摘要: | Targeted gene flow is an emerging conservation strategy that involves introducing individuals with particular traits to places where these traits are of benefit. One obvious application is to adapt a recipient population to a known threat, but questions remain as to how best to achieve this. Here, we vary timing and size of the introduction to maximise our objective – survival of the recipient population's genome. We explore a generic population model as well as a specific example – the northern quoll, an Australian marsupial predator threatened by the toxic cane toad. We reveal a trade-off between preserving the recipient genome and reducing population extinction risk, but key management levers can often optimise this so that nearly 100% of the recipient population's genome is preserved. Any action was better than none but the size of the benefit was sensitive to outbreeding depression, recombination rate, and the timing and size of the introduction. © 2019 John Wiley & Sons Ltd/CNRS |
| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/122727
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | School of Biosciences, The University of Melbourne, Parkville, 3010, Australia
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| Recommended Citation: | |
Kelly E.,Phillips B.. How many and when? Optimising targeted gene flow for a step change in the environment[J]. Ecology Letters,2019-01-01,22(3)
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