The fitness landscape of a community of Darwin's finches.

Autor:	Beausoleil MO; Redpath Museum and Department of Biology, McGill University, Montréal, Québec, Canada., Carrión PL; Redpath Museum and Department of Biology, McGill University, Montréal, Québec, Canada., Podos J; Department of Biology, University of Massachusetts Amherst, Amherst, MA, United States., Camacho C; Department of Ecology and Evolution, Estación Biológica de Doñana-CSIC, Sevilla, Spain., Rabadán-González J; Observation.org Spain, Almensilla, Seville, Spain., Richard R; Redpath Museum and Department of Biology, McGill University, Montréal, Québec, Canada., Lalla K; Department of Natural Resource Sciences, McGill University, Sainte-Anne-de-Bellevue, Québec, Canada., Raeymaekers JAM; Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway., Knutie SA; Department of Ecology and Evolutionary Biology, Institute for Systems Genomics, University of Connecticut, Storrs, CT, United States., De León LF; Department of Biology, University of Massachusetts Boston, Boston, MA, United States., Chaves JA; Department of Biology, San Francisco State University, San Francisco, CA, United States.; Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Ecuador., Clayton DH; School of Biological Sciences, University of Utah, Salt Lake City, UT, United States., Koop JAH; Department of Biological Sciences, Northern Illinois University, DeKalb, IL, United States., Sharpe DMT; Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, United States., Gotanda KM; Redpath Museum and Department of Biology, McGill University, Montréal, Québec, Canada.; Department of Biological Sciences, Brock University, St. Catharines, Ontario, Canada.; Department of Zoology, University of Cambridge, United Kingdom.; Département de biologie, Université de Sherbrooke, Québec, Canada., Huber SK; Virginia Institute of Marine Science, William and Mary, Gloucester Point, VA, United States., Barrett RDH; Redpath Museum and Department of Biology, McGill University, Montréal, Québec, Canada., Hendry AP; Redpath Museum and Department of Biology, McGill University, Montréal, Québec, Canada.
Jazyk:	angličtina
Zdroj:	Evolution; international journal of organic evolution [Evolution] 2023 Dec 02; Vol. 77 (12), pp. 2533-2546.
DOI:	10.1093/evolut/qpad160
Abstrakt:	Divergent natural selection should lead to adaptive radiation-that is, the rapid evolution of phenotypic and ecological diversity originating from a single clade. The drivers of adaptive radiation have often been conceptualized through the concept of "adaptive landscapes," yet formal empirical estimates of adaptive landscapes for natural adaptive radiations have proven elusive. Here, we use a 17-year dataset of Darwin's ground finches (Geospiza spp.) at an intensively studied site on Santa Cruz (Galápagos) to estimate individual apparent lifespan in relation to beak traits. We use these estimates to model a multi-species fitness landscape, which we also convert to a formal adaptive landscape. We then assess the correspondence between estimated fitness peaks and observed phenotypes for each of five phenotypic modes (G. fuliginosa, G. fortis [small and large morphotypes], G. magnirostris, and G. scandens). The fitness and adaptive landscapes show 5 and 4 peaks, respectively, and, as expected, the adaptive landscape was smoother than the fitness landscape. Each of the five phenotypic modes appeared reasonably close to the corresponding fitness peak, yet interesting deviations were also documented and examined. By estimating adaptive landscapes in an ongoing adaptive radiation, our study demonstrates their utility as a quantitative tool for exploring and predicting adaptive radiation. (© The Author(s) 2023. Published by Oxford University Press on behalf of The Society for the Study of Evolution (SSE).)
Databáze:	MEDLINE
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