The invasive South American tomato pinworm, Tuta absoluta, continues to spread in Afro-Eurasia and beyond: the new threat to tomato world production

Journal of Pest Science, Journal Year: 2011, Volume and Issue: 84(4), P. 403 - 408

Published: Nov. 7, 2011

Language: Английский

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Intraspecific trait variation across scales: implications for understanding global change responses

Global Change Biology, Journal Year: 2015, Volume and Issue: 22(1), P. 137 - 150

Published: June 10, 2015

Abstract Recognition of the importance intraspecific variation in ecological processes has been growing, but empirical studies and models global change have only begun to address this issue detail. This review discusses sources patterns trait their consequences for understanding how will respond change. We examine current theories incorporate variation, existing data that could help parameterize account predictions, discuss new may be needed. provide guidelines on when it is most important consider such as heritable or nonlinear relationships are involved. also highlight benefits limitations different model types argue many common modeling approaches matrix population dynamic vegetation can allow a stronger consideration if necessary available. recommend need made more accessible, though some cases, experiments needed disentangle causes variation.

Language: Английский

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Non-random gene flow: an underappreciated force in evolution and ecology

Trends in Ecology & Evolution, Journal Year: 2012, Volume and Issue: 27(12), P. 659 - 665

Published: Aug. 10, 2012

Language: Английский

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Expanding population edges: theories, traits, and trade‐offs

Global Change Biology, Journal Year: 2015, Volume and Issue: 22(2), P. 494 - 512

Published: Oct. 1, 2015

Abstract Recent patterns of global change have highlighted the importance understanding dynamics and mechanisms species range shifts expansions. Unique demographic features, spatial processes, selective pressures can result in accumulation evolution distinctive phenotypic traits at leading edges We review characteristics expanding margins highlight possible for appearance differences between individuals edge core range. The development life history that increase dispersal or reproductive ability is predicted by theory supported with extensive empirical evidence. Many examples rapid are associated trade‐offs may influence persistence trait once expansion ends. Accounting effects phenotypes related could be critical predicting spread invasive population responses to climate change.

Language: Английский

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A road map for integrating eco‐evolutionary processes into biodiversity models

Ecology Letters, Journal Year: 2013, Volume and Issue: 16(s1), P. 94 - 105

Published: May 1, 2013

Abstract The demand for projections of the future distribution biodiversity has triggered an upsurge in modelling at crossroads between ecology and evolution. Despite enthusiasm around these so‐called models, most approaches are still criticised not integrating key processes known to shape species ranges community structure. Developing integrative framework promises improve reliability predictions give a better understanding eco‐evolutionary dynamics communities under changing environments. In this article, we briefly review some interplays among them, which essential provide reliable distributions We identify gaps theory, quantitative knowledge data availability hampering development integrated framework. argue that model relying on strong theoretical foundation is inspire new manage complexity maintain tractability. support our argument with example novel modelling, derived from metapopulation accounts abiotic constraints, dispersal, biotic interactions evolution environmental conditions. hope such perspective will motivate exciting research, challenge others proposed approach.

Language: Английский

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Evolution of dispersal strategies and dispersal syndromes in fragmented landscapes

Ecography, Journal Year: 2016, Volume and Issue: 40(1), P. 56 - 73

Published: Nov. 1, 2016

Habitat fragmentation, an important element of current global change, has profound repercussions on population and species extinction. Landscape fragmentation reduces individual movements between patches (i.e. dispersal) while such connecting enhance the persistence metapopulations metacommunities. Through recognition non‐random movements, dispersal recently been recognized as a highly complex process. This complexity likely changes predictions evolution in spatially structured populations communities. In this article, we emphasize effects dispersal. may shape local selective pressures acting large array phenotypic traits known to covary with behaviors. On top propensity, habitat could therefore modify syndromes dispersers' specializations). often leads spatial structuring conditions consequently lead different at landscape scale. By neglecting impacts syndromes, might underestimate crucial biodiversity level for metapopulation metacommunity functioning. We highlight set priorities future empirical theoretical work that together would provide understanding eco‐evolutionary dynamics required improving our ability predict manage

Language: Английский

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Dispersal: a central and independent trait in life history

Oikos, Journal Year: 2016, Volume and Issue: 126(4), P. 472 - 479

Published: Oct. 13, 2016

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

Language: Английский

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Evolution of dispersal and life history interact to drive accelerating spread of an invasive species

Ecology Letters, Journal Year: 2013, Volume and Issue: 16(8), P. 1079 - 1087

Published: July 1, 2013

Populations on the edge of an expanding range are subject to unique evolutionary pressures acting their life-history and dispersal traits. Empirical evidence theory suggest that traits there can evolve rapidly enough interact with ecological dynamics, potentially giving rise accelerating spread. Nevertheless, which several mechanisms drive this interaction between evolution spread remains open question. We propose integrated theoretical framework for partitioning contributions different spread, we apply model invasive cane toads in northern Australia. In doing so, identify a previously unrecognised process involves during shift. roughly equal parts, evolution, led doubling distance by our model, highlighting potential importance multiple processes dynamics expansion.

Language: Английский

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Rapid evolution of dispersal ability makes biological invasions faster and more variable

Nature Communications, Journal Year: 2017, Volume and Issue: 8(1)

Published: Jan. 27, 2017

Genetic variation in dispersal ability may result the spatial sorting of alleles during range expansion. Recent theory suggests that can favour rapid evolution life history traits at expanding fronts, and therefore modify ecological dynamics Here we test this prediction by disrupting replicated invasions bean beetle Callosobruchus maculatus across homogeneous experimental landscapes. We show promotes distance, which increases speed variability invasions: after 10 generations expansion, subject to spread 8.9% farther exhibit 41-fold more variable relative is suppressed. Correspondingly, descendants from spatially evolving greater mean variance distance. Our results reveal an important role for invasion, even absence environmental filters, argue evolutionarily informed forecasts invasive exotic species or climate change migration native species.

Language: Английский

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Eco-evolutionary feedbacks during experimental range expansions

Nature Communications, Journal Year: 2015, Volume and Issue: 6(1)

Published: April 22, 2015

Abstract Understanding biological range expansions and invasions is of great ecological economical interest. Importantly, spatial dynamics can be deeply affected by rapid evolution depending on the context. Using experimental in replicated microcosm landscapes numerical analyses we show experimentally that process leads to increased dispersal. This evolutionary change counter-intuitively feeds back (macro-)ecological patterns affecting distribution population densities. While existing theory suggests densities decrease from cores margins due K -selection, reverse true when competition considered explicitly including resource dynamics. We suggest a dispersal-foraging trade-off, leading more ‘prudent’ foraging at margins, driving mechanism behind macroecological pattern reported. In conclusion, multi-trait eco-evolutionary feedbacks are highly relevant for understanding designing appropriate conservation strategies.

Language: Английский

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