2019
DOI: 10.1007/s10113-019-01534-3
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Environmental change and variability influence niche evolution of isolated natural populations

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Cited by 3 publications
(6 citation statements)
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“…Contrary to our expectation the tolerance levels ultimately evolving were only influenced by the tradeoff parameter α but did not depend on the amount of spatial variation. The mean tolerance values evolving were in fact close to the optimal tolerance values reported in our previous study for scenarios with only a single population; the unavoidable temporal variance in environmental conditions imposes selection for a specific tolerance value that maximizes the geometric mean fitness (Sieger et al 2019), thus preventing an extreme ‘narrowing’ of the habitat niche on local average habitat conditions. Further, tolerance did not evolve to different values in average as compared to extreme habitat patches.…”
Section: Discussionsupporting
confidence: 80%
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“…Contrary to our expectation the tolerance levels ultimately evolving were only influenced by the tradeoff parameter α but did not depend on the amount of spatial variation. The mean tolerance values evolving were in fact close to the optimal tolerance values reported in our previous study for scenarios with only a single population; the unavoidable temporal variance in environmental conditions imposes selection for a specific tolerance value that maximizes the geometric mean fitness (Sieger et al 2019), thus preventing an extreme ‘narrowing’ of the habitat niche on local average habitat conditions. Further, tolerance did not evolve to different values in average as compared to extreme habitat patches.…”
Section: Discussionsupporting
confidence: 80%
“…Therefore, individuals with a high tolerance and high dispersal probability were initially favored, similar to results by Hillaert et al (2015). Indeed, in our previous publication (Sieger et al 2019) we could already demonstrate that an initial evolutionary response to local maladaption as, for example, initiated by climate change, may also be niche widening beyond the optimum under static average conditions as such a response can also reduce the cost of maladaptation. Only when the niche optimum had adapted to new conditions did the tolerance values evolve back to the optimal values.…”
Section: Discussionmentioning
confidence: 79%
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