Evaluating the metapopulation consequences of ecological traps

Proceedings. Biological Sciences
Robin HaleStephen E Swearer

Abstract

Ecological traps occur when environmental changes cause maladaptive habitat selection. Despite their relevance to metapopulations, ecological traps have been studied predominantly at local scales. How these local impacts scale up to affect the dynamics of spatially structured metapopulations in heterogeneous landscapes remains unexplored. We propose that assessing the metapopulation consequences of traps depends on a variety of factors that can be grouped into four categories: the probability of encounter, the likelihood of selection, the fitness costs of selection and species-specific vulnerability to these costs. We evaluate six hypotheses using a network-based metapopulation model to explore the relative importance of factors across these categories within a spatial context. Our model suggests (i) traps are most severe when they represent a large proportion of habitats, severely reduce fitness and are highly attractive, and (ii) species with high intrinsic fitness will be most susceptible. We provide the first evidence that (iii) traps may be beneficial for metapopulations in rare instances, and (iv) preferences for natal-like habitats can magnify the effects of traps. Our study provides important insight into the effects of...Continue Reading

References

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Citations

Feb 13, 2016·Proceedings. Biological Sciences·Robin Hale, Stephen E Swearer
Jun 23, 2016·Biology Letters·Robin HaleStephen E Swearer
Sep 30, 2016·The Journal of Animal Ecology·Clayton T LambStan Boutin
Jan 11, 2017·Ecology and Evolution·Robin HaleStephen E Swearer
Mar 2, 2018·Ecological Applications : a Publication of the Ecological Society of America·Michael SieversRobin Hale
Jun 21, 2019·Ecological Applications : a Publication of the Ecological Society of America·Luke T BarrettStephen E Swearer
Oct 18, 2019·Animal Cognition·Robert B MobleyJanette W Boughman
Jan 26, 2020·Ecology Letters·Nathan D Van Schmidt, Steven R Beissinger
Sep 21, 2017·Biological Reviews of the Cambridge Philosophical Society·Michael SieversStephen E Swearer
Jun 23, 2021·Oecologia·Ronalds KramsIndrikis A Krams

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Software Mentioned

IMPACT
R package CompModSA
R
MMLT IMPACT
MMLT IMPACT MIMPACT
MMLT
CompModSA
MIMPACT
NHPI
MASS

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