Legacy introductions and climatic variation explain spatiotemporal patterns of invasive hybridization in a native trout

© 2017 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 23(2017), 11 vom: 22. Nov., Seite 4663-4674
1. Verfasser: Muhlfeld, Clint C (VerfasserIn)
Weitere Verfasser: Kovach, Ryan P, Al-Chokhachy, Robert, Amish, Stephen J, Kershner, Jeffrey L, Leary, Robb F, Lowe, Winsor H, Luikart, Gordon, Matson, Phil, Schmetterling, David A, Shepard, Bradley B, Westley, Peter A H, Whited, Diane, Whiteley, Andrew, Allendorf, Fred W
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article biodiversity climate change cutthroat trout hybridization introgression invasion propagule pressure translocation
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245 1 0 |a Legacy introductions and climatic variation explain spatiotemporal patterns of invasive hybridization in a native trout 
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500 |a CommentIn: Glob Chang Biol. 2017 Dec;23 (12 ):5021-5023. - PMID 28741794 
500 |a Citation Status MEDLINE 
520 |a © 2017 John Wiley & Sons Ltd. 
520 |a Hybridization between invasive and native species, a significant threat to worldwide biodiversity, is predicted to increase due to climate-induced expansions of invasive species. Long-term research and monitoring are crucial for understanding the ecological and evolutionary processes that modulate the effects of invasive species. Using a large, multidecade genetics dataset (N = 582 sites, 12,878 individuals) with high-resolution climate predictions and extensive stocking records, we evaluate the spatiotemporal dynamics of hybridization between native cutthroat trout and invasive rainbow trout, the world's most widely introduced invasive fish, across the Northern Rocky Mountains of the United States. Historical effects of stocking and contemporary patterns of climatic variation were strongly related to the spread of hybridization across space and time. The probability of occurrence, extent of, and temporal changes in hybridization increased at sites in close proximity to historical stocking locations with greater rainbow trout propagule pressure, warmer water temperatures, and lower spring precipitation. Although locations with warmer water temperatures were more prone to hybridization, cold sites were not protected from invasion; 58% of hybridized sites had cold mean summer water temperatures (<11°C). Despite cessation of stocking over 40 years ago, hybridization increased over time at half (50%) of the locations with long-term data, the vast majority of which (74%) were initially nonhybridized, emphasizing the chronic, negative impacts of human-mediated hybridization. These results show that effects of climate change on biodiversity must be analyzed in the context of historical human impacts that set ecological and evolutionary trajectories 
650 4 |a Journal Article 
650 4 |a biodiversity 
650 4 |a climate change 
650 4 |a cutthroat trout 
650 4 |a hybridization 
650 4 |a introgression 
650 4 |a invasion 
650 4 |a propagule pressure 
650 4 |a translocation 
700 1 |a Kovach, Ryan P  |e verfasserin  |4 aut 
700 1 |a Al-Chokhachy, Robert  |e verfasserin  |4 aut 
700 1 |a Amish, Stephen J  |e verfasserin  |4 aut 
700 1 |a Kershner, Jeffrey L  |e verfasserin  |4 aut 
700 1 |a Leary, Robb F  |e verfasserin  |4 aut 
700 1 |a Lowe, Winsor H  |e verfasserin  |4 aut 
700 1 |a Luikart, Gordon  |e verfasserin  |4 aut 
700 1 |a Matson, Phil  |e verfasserin  |4 aut 
700 1 |a Schmetterling, David A  |e verfasserin  |4 aut 
700 1 |a Shepard, Bradley B  |e verfasserin  |4 aut 
700 1 |a Westley, Peter A H  |e verfasserin  |4 aut 
700 1 |a Whited, Diane  |e verfasserin  |4 aut 
700 1 |a Whiteley, Andrew  |e verfasserin  |4 aut 
700 1 |a Allendorf, Fred W  |e verfasserin  |4 aut 
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773 1 8 |g volume:23  |g year:2017  |g number:11  |g day:22  |g month:11  |g pages:4663-4674 
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