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Descripción
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| The challenges raised by climate change demand new conservation and restoration approaches. One of the tools recently taken into consideration is facilitated adaptation, which involves increasing the frequency of alleles of adaptive value in a population by selecting individuals that carry these alleles. Here we present a review of its antecedents and theoretical context to evaluate its applicability as a potential restoration tool. Facilitated adaptation is framed in the context of assisted evolution, focused on improving the ability of organisms to adapt to stressful environments, or to accelerate recovery after unfavorable periods. Five stages can be identified in the process of facilitated adaptation: 1) Determination of the desired phenotype, 2) identification of the implicit genotypes, 3) evaluation and, if necessary, provision of genetic diversity, 4) selection of the individuals that carry the desired genotypes, and, finally, 5) reinforcement of the target populations with individuals carrying the desired phenotype. This approach may offer important benefits to biodiversity because of its potential to generate adapted individuals to future changing conditions, to accelerate natural processes where the present degradation does not allow natural recovery, or to restore altered processes and attributes in the ecosystems. However, it can also entail risks, mainly genetic, that need to be considered. Reduction of genetic diversity due to selection, decrease of fitness due to correlated effects, and loss of naturalness are among the main risks at the population level. Therefore, the application of this approach must be carefully assessed by weighting the benefits against the risks. | |
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Internacional
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Si |
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Nombre congreso
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1st Meeting of the Iberian Ecological Society (SIBECOL) & XIV AEET Meeting |
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Tipo de participación
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960 |
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Lugar del congreso
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Barcelona (Spain) |
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Revisores
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Si |
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ISBN o ISSN
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00-0000-000-0 |
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DOI
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DOI 10.7818/SIBECOLandAEETmeeting.2019 |
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Fecha inicio congreso
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04/02/2019 |
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Fecha fin congreso
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07/02/2019 |
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Desde la página
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119 |
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Hasta la página
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119 |
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Título de las actas
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Abstract book of the 1st Meeting of the Iberian Ecological Society (SIBECOL) & XIV AEET Meeting |