Dispersal distance is influenced by parental and grand-parental density

Bitume, Ellyn; Bonte, Dries; Ronce, Ophélie; Olivieri, Isabelle; Nieberding, Caroline M.

doi:10.1098/rspb.2014.1061

Cited by 54 publications

(54 citation statements)

References 61 publications

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“…In recent studies, we have shown the variation in density during the non-breeding season influences the dry weight of flies surviving to enter the breeding period (Betini et al 2013b), which then carries over to influence reproductive output (Betini et al 2013a). However, in other populations, the decision to disperse could also be influenced by past densities acting through other mechanisms (Morris and Diffendorfer 2004), such as maternal effects (Bitume et al 2014), access to mates (Stamps 1991), aggressive interactions (Hestbeck 1982), mating status (Simon et al 2011), foraging behavior (Edelsparre et al 2014), or competitive environment (Innocent et al 2010). For example, individuals may be more willing to disperse in a given season if their assessment of the competitive environment is Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Given that dispersal can be energetically costly (Bonte et al 2011), delayed effects of density on dispersal caused by temporal variation in resources could be a widespread, but underappreciated, phenomenon (Morris and Diffendorfer 2004, Debeffe et al 2012, Bitume et al 2014. This is particularly important because humans are creating an increasingly disturbed and fragmented landscape, and it is widely recognized that the persistence of a species relies on the ability to explore and move through the landscape (Parmesan 2006, Swift and Hannon 2010, Post 2013.…”

Section: Discussionmentioning

confidence: 99%

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The role of seasonality and non‐lethal carry‐over effects on density‐dependent dispersal

et al. 2015

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. 2015. The role of seasonality and non-lethal carry-over effects on density-dependent dispersal. Ecosphere 6(12):272. http://dx.doi.org/10.1890/ES15-00257.1Abstract. Understanding dispersal is critical for predicting a wide range of ecological dynamics.Variation in intraspecific density is widely regarded as a major factor influencing dispersal rates but it is not clear why dispersal is positively related to density in some systems and negatively related to density in other systems. Using seasonal populations of Drosophila melanogaster, we experimentally show that dispersal rates are both positively related to breeding density at the time of dispersal and negatively related to density at the beginning of the previous non-breeding season. This suggests that flies use density at the time of dispersal as a cue for habitat quality but are also negatively influenced by the delayed, non-lethal effects of density in the previous season. A parameterized model indicates that a carry-over effect not only causes a decrease in the proportion of individuals that disperse, but also a decrease in population size caused by lower per capita breeding output. Our results demonstrate how density can have contrasting effects on dispersal and population size depending on when density is measured in the annual cycle and that non-lethal effects on individuals can have important, but previously unrecognized, consequences for both the movement rates and long-term dynamics of seasonal populations.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The role of seasonality and non‐lethal carry‐over effects on density‐dependent dispersal

et al. 2015

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“…Consistent genetic dispersal syndromes at the individual‐level are neither expected to maximise fitness. Like life‐history traits related to reproduction and aging (Lindström 1999), dispersal is now acknowledged to be context‐ and density‐dependent (Clobert et al , De Meester and Bonte , Bitume et al , ) and thus highly heterogeneous when studied at the phenotypic level. An analysis of phenotypic data on dispersal and movement of European butterflies revealed at least as much variation within as among species (Stevens et al ).…”

Section: Is Dispersal Genetically Integrated In Life Histories?mentioning

confidence: 99%

“…Within a food web perspective, phenotypic variation has been demonstrated to affect interaction strengths between prey and predators (terHorst et al ). Carry‐over effects across life stages (Van Allen and Bhavsar ) or even generations (Bitume et al , ) can be particularly relevant to maintain and generate spatiotemporal variation in demography among local populations (Benard and McCauley ).…”

Section: Consequences – Condition Dependencymentioning

confidence: 99%

Dispersal: a central and independent trait in life history

Bonte

Dahirel

2016

Oikos

202

194

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International audienceThe study of tradeoffs among major life history components (age at maturity, lifespan and reproduction) allowed the development of a quantitative framework to understand how environmental variation shapes patterns of biodiversity among and within species. Because every environment is inherently spatially structured, and in most cases temporally variable, individuals need to move within and among habitats to maximize fitness. Dispersal is often assumed to be tightly integrated into life histories through genetic correlations with other vital traits. This assumption is particularly strong within the context of a fast-slow continuum of life-history variation. Such a framework is to date used to explain many aspects of population and community dynamics. Evidence for a consistent and context-independent integration of dispersal in life histories is, however, weak. We therefore advocate the explicit integration of dispersal into life history theory as a principal axis of variation influencing fitness, that is free to evolve, independently of other life history traits. We synthesize theoretical and empirical evidence on the central role of dispersal and its evolutionary dynamics on the spatial distribution of ecological strategies and its impact on population spread, invasions and coexistence. By applying an optimality framework we show that the inclusion of dispersal as an independent dimension of life histories might substantially change our view on evolutionary trajectories in spatially structured environments. Because changes in the spatial configuration of habitats affect the costs of movement and dispersal, adaptations to reduce these costs will increase phenotypic divergence among and within populations. We outline how this phenotypic heterogeneity is anticipated to further impact population and community dynamics

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“…Our results are consistent with the observation that the dispersal distance of offspring is strongly affected by maternal and grand-maternal environments (Bitume et al. 2014). We could thus infer that females reared on the tomato common environment produced adults with a dispersal capacity higher than those from females reared on the cucumber common environment, this capacity potentially being adaptive for searching for a more suitable host.…”

Section: Discussionmentioning

confidence: 99%

Effects of host plant on life‐history traits in the polyphagous spider mite Tetranychus urticae

Marinosci

Magalhães

Macke

et al. 2015

Ecology and Evolution

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Studying antagonistic coevolution between host plants and herbivores is particularly relevant for polyphagous species that can experience a great diversity of host plants with a large range of defenses. Here, we performed experimental evolution with the polyphagous spider mite Tetranychus urticae to detect how mites can exploit host plants. We thus compared on a same host the performance of replicated populations from an ancestral one reared for hundreds of generations on cucumber plants that were shifted to either tomato or cucumber plants. We controlled for maternal effects by rearing females from all replicated populations on either tomato or cucumber leaves, crossing this factor with the host plant in a factorial design. About 24 generations after the host shift and for all individual mites, we measured the following fitness components on tomato leaf fragments: survival at all stages, acceptance of the host plant by juvenile and adult mites, longevity, and female fecundity. The host plant on which mite populations had evolved did not affect the performance of the mites, but only affected their sex ratio. Females that lived on tomato plants for circa 24 generations produced a higher proportion of daughters than did females that lived on cucumber plants. In contrast, maternal effects influenced juvenile survival, acceptance of the host plant by adult mites and female fecundity. Independently of the host plant species on which their population had evolved, females reared on the tomato maternal environment produced offspring that survived better on tomato as juveniles, but accepted less this host plant as adults and had a lower fecundity than did females reared on the cucumber maternal environment. We also found that temporal blocks affected mite dispersal and both female longevity and fecundity. Taken together, our results show that the host plant species can affect critical parameters of population dynamics, and most importantly that maternal and environmental conditions can facilitate colonization and exploitation of a novel host in the polyphagous T. urticae, by affecting dispersal behavior (host acceptance) and female fecundity.

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Dispersal distance is influenced by parental and grand-parental density

Cited by 54 publications

References 61 publications

The role of seasonality and non‐lethal carry‐over effects on density‐dependent dispersal

The role of seasonality and non‐lethal carry‐over effects on density‐dependent dispersal

Dispersal: a central and independent trait in life history

Effects of host plant on life‐history traits in the polyphagous spider mite Tetranychus urticae

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