High dispersal ability is related to fast life‐history strategies

Beckman, Noelle G.; Bullock, James M.; Salguero‐Gómez, Roberto

doi:10.1111/1365-2745.12989

Cited by 80 publications

(83 citation statements)

References 150 publications

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“…Several contributions in this special feature develop integrative frameworks to that end. Beckman, Bullock, and Salguero‐Gómez () focus on a phenomenon that has not typically been viewed as a functional trait: dispersal. They bring together global data on key anatomical traits, life‐history traits, and dispersal ability and mode of dispersal for 141 plant species to evaluate emerging dispersal syndromes ( sensu Ronce & Clobert, ).…”

Section: Novel Contributions Of This Special Issuementioning

confidence: 99%

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Delivering the promises of trait‐based approaches to the needs of demographic approaches, and vice versa

et al. 2018

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Few facets of biology vary more than functional traits and life‐history traits. To explore this vast variation, functional ecologists and population ecologists have developed independent approaches that identify the mechanisms behind and consequences of trait variation.Collaborative research between researchers using trait‐based and demographic approaches remains scarce. We argue that this is a missed opportunity, as the strengths of both approaches could help boost the research agendas of functional ecology and population ecology.This special feature, which spans three journals of the British Ecological Society due to its interdisciplinary nature, showcases state‐of‐the‐art research applying trait‐based and demographic approaches to examine relationships between organismal function, life history strategies and population performance across multiple kingdoms. Examples include the exploration of how functional trait × environment interactions affect vital rates and thus explain population trends and species occurrence; the coordination of seed traits and dispersal ability with the pace of life in plants; the incorporation of functional traits in dynamic energy budget models; or the discovery of linkages between microbial functional traits and the fast–slow continuum.Despite their historical isolation, collaborative work between functional ecologists and population ecologists could unlock novel research pathways. We call for an integrative research agenda to evaluate which and when traits are functional, as well as their ability to describe and predict life history strategies and population dynamics. We highlight promising, complementary research avenues to overcome current limitations. These include a more explicit linkage of selection gradients in the context of functional trait–vital rate relationships, and the implementation of standardised protocols to track changes in traits and vital rates over time at the same location and individuals, thus allowing for the explicit incorporation of trade‐offs in analyses of covariation of functional traits and life‐history traits.

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Section: Novel Contributions Of This Special Issuementioning

confidence: 99%

“…Several contributions in this special feature develop integrative frameworks to that end. Beckman, Bullock, and Salguero-Gómez (2018) focus on a phenomenon that has not typically been viewed as a functional trait:…”

Section: Theme 3: Coordination Of Traits Into Syndromesmentioning

confidence: 99%

Delivering the promises of trait‐based approaches to the needs of demographic approaches, and vice versa

et al. 2018

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“…In fact, systematic differences in more than one character are the rule rather than the exception. Species with low generations times often exhibit systematically higher population sizes (n t and n e ), greater intrinsic growth rates, larger dispersal abilities, but lower competitive abilities than species with long generation times (Petit and Hampe, 2006;Buoro and Carlson, 2014;Beckman et al, 2018). It thus remains to be further investigated whether life-history strategies could overcome the evolvability robustness tradeoff also by other means than λ max , or whether some life-history strategies are indeed more prone to certain environmental dynamics than others.…”

Section: Discussionmentioning

confidence: 99%

A tradeoff between robustness to environmental fluctuations and speed of evolution

Schmid

Paniw

Postuma

et al. 2019

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Organisms must cope with both short-and long-term environmental changes to persist. In this study we investigated theoretically if life histories trade off between their robustness to short-term environmental perturbations and their ability to evolve directional trait changes. By the use of mathematical models and stochastic individual-based simulations we could confirm the tradeoff, at least for comparisons between standardized life histories. Offspring dormancy and high adult survival allowed to maintain large population sizes when confronted with interannual environmental fluctuations while depressing the speed of evolution with ongoing environmental change. Instead, precocious offspring maturation and short-living adults promoted evolvability while lowering robustness. This tradeoff had immediate consequences for extinction dynamics in variable environments. High evolvability allowed to cope best with long-lasting gradual environmental change, but came at the expense of more pronounced population declines from environmental variability and during the initial phase of environmental change.

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“…Dispersal syndromes may arise due to a variety of proximate and ultimate causes [reviewed in Ronce and Clobert, 2012], including trade-offs in allocation, similar responses in expression to environmental conditions, genetic correlations among traits, joint selection on several traits, or selection on dispersal constrained by or constraining the evolution of other traits. Across species, Beckman et al [2018] found species with fast life-history strategies dispersed their seeds further than species with slow life-history strategies. Within species, dispersal is predicted to be an independent axis of other life history traits [Bonte and Dahirel, 2017], although this is not well-studied in plants.…”

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confidence: 94%

Individual variation in dispersal and fecundity increases rates of spatial spread

Schreiber

Beckman²

2019

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Dispersal and fecundity are two fundamental traits underlying the spread of populations. Using integral difference equation models, we examine how individual variation in these fundamental traits and the heritability of these traits influence rates of spatial spread of populations along a one-dimensional transect. Using a mixture of analytic and numerical methods, we show that individual variation in dispersal rates increases spread rates and the more heritable this variation, the greater the increase. In contrast, individual variation in lifetime fecundity only increases spread rates when some of this variation is heritable. The highest increases in spread rates occurs when variation in dispersal positively covaries with fecundity. Our results highlight the importance of estimating individual variation in dispersal rates, dispersal syndromes in which fecundity and dispersal co-vary positively, and heritability of these traits to predict population rates of spatial spread.

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High dispersal ability is related to fast life‐history strategies

Cited by 80 publications

References 150 publications

Delivering the promises of trait‐based approaches to the needs of demographic approaches, and vice versa

Delivering the promises of trait‐based approaches to the needs of demographic approaches, and vice versa

A tradeoff between robustness to environmental fluctuations and speed of evolution

Individual variation in dispersal and fecundity increases rates of spatial spread

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