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https://hdl.handle.net/1822/87046
Título: | Establishment versus population growth in spatio-temporally varying environments |
Autor(es): | Haccou, Patsy Serra, Maria Conceição |
Palavras-chave: | persistence repeated invasions environmental autocorrelation spatial structure inhomogeneous branching process introgression |
Data: | 6-Jan-2021 |
Editora: | The Royal Society |
Revista: | Proceedings of the Royal Society B: Biological Sciences |
Citação: | Haccou, P., & Serra, M. C. (2021, January 6). Establishment versus population growth in spatio-temporally varying environments. Proceedings of the Royal Society B: Biological Sciences. The Royal Society. http://doi.org/10.1098/rspb.2020.2009 |
Resumo(s): | We consider situations where repeated invasion attempts occur from a source population into a receptor population over extended periods of time. The receptor population contains two locations that provide different expected offspring numbers to invaders. There is demographic stochasticity in offspring numbers. In addition, temporal variation causes local invader fitnesses to vary. We show that effects of environmental autocorrelation on establishment success depend on spatial covariance of the receptor subpopulations. In situations with a low spatial covariance this effect is positive, whereas high spatial covariance and/or high migration probabilities between the subpopulations causes the effect to be negative. This result reconciles seemingly contradictory results from the literature concerning effects of temporal variation on population dynamics with demographic stochasticity. We study an example in the context of genetic introgression, where invasions of cultivar plant genes occur through pollen flow from a source population into wild-type receptor populations, but our results have implications in a wider range of contexts, such as the spread of exotic species, metapopulation dynamics and epidemics. |
Tipo: | Artigo |
Descrição: | Electronic supplementary material is available online at https://doi.org/10.6084/m9.figshare. c.5238541. |
URI: | https://hdl.handle.net/1822/87046 |
DOI: | 10.1098/rspb.2020.2009 |
ISSN: | 0962-8452 |
e-ISSN: | 1471-2954 |
Versão da editora: | https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2020.2009 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CMAT - Artigos em revistas com arbitragem / Papers in peer review journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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haccou-serra-2021-establishment-versus-population-growth-in-spatio-temporally-varying-environments.pdf | Article | 663,94 kB | Adobe PDF | Ver/Abrir |