ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2018
Eco-evolutionary dynamics, density-dependent dispersal and collective behaviour: implications for salmon metapopulation robustness.
Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
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Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Physiology can predict animal activity, exploration, and dispersal.Communications biology · 2022Pooled it
- In and out: factors influencing two decades of straying and homing by Pacific salmon within the Columbia River basin.Royal Society open science · 2025Article
- Evolution and stability of social learning in animal migration.Movement ecology · 2025Article
- Salmon hatchery strays can demographically boost wild populations at the cost of diversity: quantitative genetic modelling of Alaska pink salmon.Royal Society open science · 2024Article
- Reliability of trans-generational genetic mark-recapture (tGMR) for enumerating Pacific salmon.Evolutionary applications · 2024Article
- Assortative mating for reproductive timing affects population recruitment and resilience in a quantitative genetic model.Evolutionary applications · 2023Article
- Group size affects predation risk and foraging success in Pacific salmon at sea.Science advances · 2022Article
- Genetic and plastic rewiring of food webs under climate change.The Journal of animal ecology · 2021Review
- Modern models of trophic meta-communities.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Review
- Glacier Retreat and Pacific Salmon.Bioscience · 2020Article
- Inferring the rules of social interaction in migrating caribou.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018Article
- Fitness trade-offs of group formation and movement by Thomson's gazelles in the Serengeti ecosystem.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018Article
- Collective animal navigation and migratory culture: from theoretical models to empirical evidence.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018Review
- Collective movement in ecology: from emerging technologies to conservation and management.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018Article
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5 authors.
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Abstract
The spatial dispersal of individuals plays an important role in the dynamics of populations, and is central to metapopulation theory. Dispersal provides connections within metapopulations, promoting demographic and evolutionary rescue, but may also introduce maladapted individuals, potentially lowering the fitness of recipient populations through introgression of heritable traits. To explore this dual nature of dispersal, we modify a well-established eco-evolutionary model of two locally adapted populations and their associated mean trait values, to examine recruiting salmon populations that are connected by density-dependent dispersal, consistent with collective migratory behaviour that promotes navigation. When the strength of collective behaviour is weak such that straying is effectively constant, we show that a low level of straying is associated with the highest gains in metapopulation robustness and that high straying serves to erode robustness. Moreover, we find that as the strength of collective behaviour increases, metapopulation robustness is enhanced, but this relationship depends on the rate at which individuals stray. Specifically, strong collective behaviour increases the presence of hidden low-density basins of attraction, which may serve to trap disturbed populations, and this is exacerbated by increased habitat heterogeneity. Taken as a whole, our findings suggest that density-dependent straying and collective migratory behaviour may help metapopulations, such as in salmon, thrive in dynamic landscapes. Given the pervasive eco-evolutionary impacts of dispersal on metapopulations, these findings have important ramifications for the conservation of salmon metapopulations facing both natural and anthropogenic contemporary disturbances.This article is part of the theme issue 'Collective movement ecology'.
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