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The fitness landscape of a community of Darwin's finches.
Beausoleil, Marc-Olivier; Carrión, Paola Lorena; Podos, Jeffrey; Camacho, Carlos; Rabadán-González, Julio; Richard, Roxanne; Lalla, Kristen; Raeymaekers, Joost A M; Knutie, Sarah A; De León, Luis F; Chaves, Jaime A; Clayton, Dale H; Koop, Jennifer A H; Sharpe, Diana M T; Gotanda, Kiyoko M; Huber, Sarah K; Barrett, Rowan D H; Hendry, Andrew P.
Afiliação
  • 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.
  • Clayton DH; Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Ecuador.
  • Koop JAH; School of Biological Sciences, University of Utah, Salt Lake City, UT, United States.
  • Sharpe DMT; Department of Biological Sciences, Northern Illinois University, DeKalb, IL, United States.
  • Gotanda KM; Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, United States.
  • Huber SK; Redpath Museum and Department of Biology, McGill University, Montréal, Québec, Canada.
  • Barrett RDH; Department of Biological Sciences, Brock University, St. Catharines, Ontario, Canada.
  • Hendry AP; Department of Zoology, University of Cambridge, United Kingdom.
Evolution ; 77(12): 2533-2546, 2023 Dec 02.
Article em En | MEDLINE | ID: mdl-37671423
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.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Passeriformes / Tentilhões Tipo de estudo: Prognostic_studies Limite: Animals País/Região como assunto: America do sul / Ecuador Idioma: En Revista: Evolution Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Canadá País de publicação: Estados Unidos
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Passeriformes / Tentilhões Tipo de estudo: Prognostic_studies Limite: Animals País/Região como assunto: America do sul / Ecuador Idioma: En Revista: Evolution Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Canadá País de publicação: Estados Unidos