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|a On a collision course: competition and dispersal differences create no-analogue communities and cause extinctions during climate change |h [electronic resource]. |
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|a [S.l.] : |b The Royal Society, |c 2012-01-04. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a Most climate change predictions omit species interactions and interspecific variation in dispersal. Here, we
develop a model of multiple competing species along awarming climatic gradient that includes temperaturedependent
competition, differences in niche breadth and interspecific differences in dispersal ability.
Competition and dispersal differences decreased diversity and produced so-called ‘no-analogue’ communities,
defined as a novel combination of species that does not currently co-occur. Climate change altered
community richness the most when species had narrow niches, when mean community-wide dispersal
rates were low and when species differed in dispersal abilities. With high interspecific dispersal variance,
the best dispersers tracked climate change, out-competed slower dispersers and caused their extinction.
Overall, competition slowed the advance of colonists into newly suitable habitats, creating lags in climate
tracking. We predict that climate change will most threaten communities of species that have narrow
niches (e.g. tropics), vary in dispersal (most communities) and compete strongly. Current forecasts probably
underestimate climate change impacts on biodiversity by neglecting competition and dispersal differences. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15042543/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/04/25/43/00001/FI15042543_thm.jpg |
