Ecology and evolution of Darwin's finches
After his famous visit to the Gal?pagos Islands, Darwin speculated that "one might fancy that, from an original paucity of birds in this archipelago, one species had been taken and modified for different ends." This book is the classic account of how much we have since learned about the evolution of these remarkable birds. Based upon over a decade's research, Grant shows how interspecific competition and natural selection act strongly enough on contemporary populations to produce observable and measurable evolutionary change. In this new edition, Grant outlines new discoveries made in the thirteen years since the book's publication. "Ecology and Evolution of Darwin's Finches" is an extraordinary account of evolution in action.
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two Characteristics of the Islands
three General Characteristics and Distributions of Finches
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Abbott adaptive adaptive radiation adult allometry allopatric arthropods beak depth beak sizes bill depth bill dimensions bill length biomass birds Boag and Grant Bowman breeding cactus finch Camarhynchus Certhidea olivacea Chapter character displacement Cocos Island competition conirostris conspecific correlated Daphne Major Darwin's Finches diets differentiation difficilis discrimination disruptive selection dry season ecological Espanola evolution evolutionary feeding females finch biomass finch populations Floreana food supply fortis fuliginosa G.fortis G.fortis and G Galapagos genetic Genovesa Geospiza species Grant and Grant ground finch species groups growth heterospecific hybridization hypothesis immigrants individuals interspecific Lack Lack's lower magnirostris males Marchena mates medium ground finch morphological natural selection nestlings niche observed occur Opuntia pairs pattern phenotypes Pinta Plate plumage populations of G psittacula relationship reproductive result Santa Cruz scandens Schluter and Grant seed biomass similar song speciation stabilizing selection sympatric tion traits tree finches variation warbler finch woodpecker finch