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  • 1
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    Natural restoration of the species-area relation for a lizard after a hurricane (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-11-17
    Description: We document the decimation and recovery of the commonest lizard species, Anolis sagrei, on 66 islands in the Bahamas that were directly hit by Hurricane Floyd in September 1999. Before the hurricane, an island's area was a better predictor of the occurrence of A. sagrei than was its altitude. Immediately after, altitude was a better predictor: Apparently all lizards on islands lower than about 3 meters maximum elevation perished in the storm surge. After about 1 year, area again became the better predictor. By 19 months after the hurricane, A. sagrei populations occurred on 88% of the islands they formerly occupied. Recovery occurred via overwater colonization and propagation from eggs that survived inundation, mechanisms that were enhanced by larger island area. Thus, natural processes first destroyed and then quickly restored a highly regular species-area distribution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schoener, T W -- Spiller, D A -- Losos, J B -- New York, N.Y. -- Science. 2001 Nov 16;294(5546):1525-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Evolution and Ecology, University of California, Davis, CA 95616, USA. twschoener@ucdavis.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11711674" target="_blank"〉PubMed〈/a〉
    Keywords: Altitude ; Animals ; Bahamas ; Conservation of Natural Resources ; *Disasters ; *Ecosystem ; Geography ; *Lizards/physiology ; Ovum/physiology ; Population Density ; Population Dynamics ; Reproduction ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Island biogeography of populations: an introduced species transforms survival patterns (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-12-17
    Description: Population phenomena, which provide much of the underlying basis for the theoretical structure of island biogeography, have received little direct study. We determined a key population trait-survival-in the Bahamian lizard Anolis sagrei on islands with an experimentally introduced predatory lizard and on neighboring unmanipulated islands. On unmanipulated islands, survival declined with several variables, most notably vegetation height: The island with the shortest vegetation had nearly the highest survival recorded for any lizard. On islands with the introduced predator, which forages mostly on the ground, A. sagrei shifted to taller vegetation; unlike on unmanipulated islands, its survival was very low on islands with the shortest vegetation but was higher on the others. Thus, species introduction radically changed a resident species' relation of survival to a key island-biogeographical variable.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schoener, Thomas W -- Losos, Jonathan B -- Spiller, David A -- New York, N.Y. -- Science. 2005 Dec 16;310(5755):1807-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Evolution and Ecology, University of California, Davis, CA 95616, USA. twschoener@ucdavis.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16357259" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bahamas ; Birds ; *Ecosystem ; Environment ; *Geography ; *Lizards ; Models, Biological ; Models, Statistical ; Plant Development ; *Plants/anatomy & histology ; Population Density ; Population Dynamics ; Predatory Behavior ; *Trees/anatomy & histology/growth & development
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Founder effects persist despite adaptive differentiation: a field experiment with lizards (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-02-04
    Description: The extent to which random processes such as founder events contribute to evolutionary divergence is a long-standing controversy in evolutionary biology. To determine the respective contributions of founder effects and natural selection, we conducted an experiment in which brown anole (Anolis sagrei) lizard populations were established on seven small islands in the Bahamas, from male-female pairs randomly drawn from the same large-island source. These founding events generated significant among-island genetic and morphological differences that persisted throughout the course of the experiment despite all populations adapting in the predicted direction-shorter hindlimbs-in response to the narrower vegetation on the small islands. Thus, using a replicated experiment in nature, we showed that both founder effects and natural selection jointly determine trait values in these populations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolbe, Jason J -- Leal, Manuel -- Schoener, Thomas W -- Spiller, David A -- Losos, Jonathan B -- New York, N.Y. -- Science. 2012 Mar 2;335(6072):1086-9. doi: 10.1126/science.1209566. Epub 2012 Feb 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA. jjkolbe@gmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22300849" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; Bahamas ; *Biological Evolution ; *Ecosystem ; Female ; *Founder Effect ; Genetic Variation ; Genotype ; Hindlimb/anatomy & histology ; Introduced Species ; Lizards/*anatomy & histology/*genetics ; Male ; Microsatellite Repeats ; Phenotype ; Population Density ; *Selection, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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