Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-22T16:09:21.011Z Has data issue: false hasContentIssue false

Divergence in morphology, but not habitat use, despite low genetic differentiation among insular populations of the lizard Anolis lemurinus in Honduras

Published online by Cambridge University Press:  13 February 2012

Michael L. Logan*
Affiliation:
Department of Ecology and Evolutionary Biology, Dartmouth College, 54 College St., Hanover, NH 03755, USA
Chad E. Montgomery
Affiliation:
Department of Biology, Truman State University, 100 E. Normal St., Kirksville, MO 63501, USA
Scott M. Boback
Affiliation:
Department of Biology, Dickinson College, 105 Dana Hall, Carlisle, PA 17013, USA
Robert N. Reed
Affiliation:
U.S. Geological Survey, Fort Collins Science Center, 2150 Centre Ave, Bldg C, Fort Collins, CO 80526, USA
Jonathan A. Campbell
Affiliation:
Department of Biology, University of Texas at Arlington, 501 S. Nedderman Drive, Arlington, TX 76010, USA
*
1Corresponding author. Email: [email protected]

Abstract:

Studies of recently isolated populations are useful because observed differences can often be attributed to current environmental variation. Two populations of the lizard Anolis lemurinus have been isolated on the islands of Cayo Menor and Cayo Mayor in the Cayos Cochinos Archipelago of Honduras for less than 15 000 y. We measured 12 morphometric and 10 habitat-use variables on 220 lizards across these islands in 2 y, 2008 and 2009. The goals of our study were (1) to explore patterns of sexual dimorphism, and (2) to test the hypothesis that differences in environment among islands may have driven divergence in morphology and habitat use despite genetic homogeneity among populations. Although we found no differences among sexes in habitat use, males had narrower pelvic girdles and longer toe pads on both islands. Between islands, males differed in morphology, but neither males nor females differed in habitat use. Our data suggest that either recent selection has operated differentially on males despite low genetic differentiation, or that they display phenotypic plasticity in response to environmental variation. We suggest that patterns may be driven by variation in intrapopulation density or differences in predator diversity among islands.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2012

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

LITERATURE CITED

BERMINGHAM, E., COATES, A., CRUZ, G., EMMONS, L., FOSTER, R. B., LESCHEN, R., SEUTIN, G., THORN, S., WCISLO, W. & WERFEL, B. 1998. Geology and terrestrial flora and fauna of Cayos Cochinos, Honduras. Revista de Biología Tropical 46:1537.Google Scholar
BLOMBERG, S. & SHINE, R. 2006. Reptiles. Pp. 297306 in Sutherland, W. J. (ed.). Ecological census techniques. Cambridge University Press, Cambridge.CrossRefGoogle Scholar
BOBACK, S. M., MONTGOMERY, C. E., REED, R. N. & GREEN, S. 2006. Oxybelis aeneus (Brown Vine Snake). Herpetological Review 37:242.Google Scholar
BUTLER, M. A. & LOSOS, J. B. 2002. Multivariate sexual dimorphism, sexual selection, and adaptation in Geater Antillean Anolis lizards. Ecological Monographs 72:541559.CrossRefGoogle Scholar
CALSBEEK, R. 2009. Experimental evidence that competition and habitat use shape the individual fitness surface. Journal of Evolutionary Biology 22:97108.CrossRefGoogle ScholarPubMed
CALSBEEK, R. & SMITH, T. B. 2007. Probing the adaptive landscape using experimental islands: density-dependent natural selection on lizard body size. Evolution 61:10521061.CrossRefGoogle ScholarPubMed
CALSBEEK, R., SMITH, T. B. & BARDELEBEN, C. 2007. Intraspecific variation in Anolis sagrei mirrors the adaptive radiation of Greater Antillean anoles. Biological Journal of the Linnaean Society 90:189199.CrossRefGoogle Scholar
CASTILLA, A. M. & BAUWENS, D. 2000. Reproductive characteristics of the island lacertid lizard Podarcis lilfordi. Journal of Herpetology 34:390396.CrossRefGoogle Scholar
CORN, M. J. 1981. Ecological separation of Anolis lizards in a Costa Rican rainforest. Ph.D. thesis, University of Florida, Gainsville.Google Scholar
COX, R. B., STENQUIST, D. S., HENNINGSEN, J. P. & CALSBEEK, R. 2009. Manipulating testosterone to assess links between behavior, morphology, and performance in the brown anole Anolis sagrei. Physiological and Biochemical Zoology 82:686698.CrossRefGoogle ScholarPubMed
FITCH, H. S. 1976. Sexual size differences in the mainland anoles. Occasional Papers of the Museum of Natural History, the University of Kansas 50:121.Google Scholar
GARLAND, T., HUEY, R. B. & BENNETT, A. F. 1991. Phylogeny and coadaptation of thermal physiology of lizards: a reanalysis. Evolution 45:19691975.CrossRefGoogle ScholarPubMed
GASC, A., DURYEA, M. C., COX, R. M., KERN, A. & CALSBEEK, R. 2010. Invasive predators deplete genetic diversity of island lizards. PLOS One 5:e12061.CrossRefGoogle ScholarPubMed
GILLIS, G. B., BONVINI, L. A. & IRSCHICK, D. J. 2009. Losing stability: tail loss and jumping in the arboreal lizard Anolis carolinensis. Journal of Experimental Biology 212:604609.CrossRefGoogle ScholarPubMed
GLOSSIP, D. & LOSOS, J. B. 1997. Ecological correlates of number of subdigital lamellae in anoles. Herpetologica 53:192199.Google Scholar
GRANT, B. R. & GRANT, P. R. 2003. What Darwin's finches can teach us about the evolutionary origin and regulation of biodiversity. Bioscience 53:965975.CrossRefGoogle Scholar
GRANT, P. R. & GRANT, B. R. 2002. Unpredictable evolution in a 30-year study of Darwin's Finches. Science 296:707711.CrossRefGoogle Scholar
GREEN, S. E. W. 2010. Evolutionary biology and conservation of the Hog Island Boa constrictor. Ph.D. Thesis, University of Kent, UK.Google Scholar
GRETHER, G. F. 1996. Intrasexual competition alone favors a sexually dimorphic ornament in the rubyspot damselfly Hataerina americana. Evolution 50:19491957.CrossRefGoogle Scholar
GUYER, C. & DONNELLY, M. A. 2005. Amphibians and reptiles of La Selva, Costa Rica, and the Caribbean slope. University of California Press, Berkeley. 367 pp.CrossRefGoogle Scholar
GUYER, C. & SAVAGE, J. M. 1986. Cladistic relationships among anoles (Sauria, Iguanidae). Systematic Zoology 35:509531.CrossRefGoogle Scholar
HARVEY, P. H. & PAGEL, M. D. 1991. The comparative method in evolutionary biology. Oxford University Press, New York. 248 pp.CrossRefGoogle Scholar
HENDERSON, R. W. 1982. Trophic relationships and foraging strategies of some New World tree snakes (Leptophis, Oxybelis, Uromacer). Amphibia–Reptilia 3:7180.CrossRefGoogle Scholar
HOLT, R. D. & BARFIELD, M. 2008. Habitat selection and niche conservatism. Israel Journal of Ecology and Evolution 54:295309.CrossRefGoogle Scholar
HUEY, R. B. & BENNETT, A. F. 1987. Phylogenetic studies of coadaptation: preferred temperatures versus optimal performance temperatures of lizards. Evolution 41:10981115.CrossRefGoogle ScholarPubMed
HURLBERT, S. H. 1984. Pseudoreplication and the design of ecological field experiments. Ecological Monographs 54:187211.CrossRefGoogle Scholar
IRSCHICK, D. J. & LOSOS, J. B. 1999. Do lizards avoid habitats in which performance is submaximal? The relationship between sprinting capabilities and structural habitat use in Caribbean anoles. American Naturalist 154:293305.CrossRefGoogle ScholarPubMed
IRSCHICK, D. J., AUSTIN, C. C., PETREN, K., FISHER, R. N., LOSOS, J. B. & ELLERS, O. 1996. A comparative analysis of clinging ability among pad-bearing lizards. Biological Journal of the Linnaean Society 59:2135.CrossRefGoogle Scholar
JENSSEN, T. A., ORRELL, K. S. & LOVERN, M. B. 2000. Sexual dimorphisms in aggressive signal structure and use by a polygynous lizard, Anolis carolinensis. Copeia 1:140149.CrossRefGoogle Scholar
KLUTSCH, C. F. C., MISOF, B., GROSSE, W. R. & MORITZ, R. F. A. 2007. Genetic and morphometric differentiation among island populations of two Norops lizards (Reptilia: Sauria: Polychrotidae) on independently colonized islands of the Islas de Bahia Honduras. Journal of Biogeography 34:11241135.CrossRefGoogle Scholar
KOHLER, G. 2003. Reptiles of Central America. Herpeton, Offenbach. 400 pp.Google Scholar
LANGERHANS, R. B., KNOUFT, J. H. & LOSOS, J. B. 2006. Shared and unique features of diversification in Greater Antillean Anolis ecomorphs. Evolution 60:362369.Google ScholarPubMed
LENORMAND, T. 2002. Gene flow and the limits to natural selection. Trends in Ecology and Evolution 17:183189.CrossRefGoogle Scholar
LISTER, B. C. & AGUAYO, A. G. 1992. Seasonality, predation, and the behavior of a tropical mainland anole. Journal of Animal Ecology 61:717733.CrossRefGoogle Scholar
LOSOS, J. B. 2009. Lizards in an evolutionary tree: ecology and adaptive radiation of anoles. University of California Press, Berkeley. 528 pp.Google Scholar
LOSOS, J. B. & CHU, L. 1998. Examination of factors potentially affecting dewlap size in Caribbean anoles. Copeia 2:430438.CrossRefGoogle Scholar
LOSOS, J. B. & RICKLEFS, R. E. 2009. Adaptation and diversification on islands. Nature 457:830836.CrossRefGoogle ScholarPubMed
LOSOS, J. B., LEAL, M., GLOR, R. E., DE QUEIROS, K., HERTZ, P. E., SCHETTINO, L. R., LARA, A. C., JACKMAN, T. R. & LARSON, A. 2003. Niche lability in the evolution of a Caribbean lizard community. Nature 424:542545.CrossRefGoogle ScholarPubMed
MCCRANIE, J. R., WILSON, L. D. & KOHLER, G. 2005. Amphibians and reptiles of the Bay Islands and Cayos Cochinos, Honduras. Bibliomania!, Salt Lake City. 210 pp.Google Scholar
NICHOLSON, K. E., GLOR, R. E., KOLBE, J. J., LARSON, A., HEDGES, S. B. & LOSOS, J. B. 2005. Mainland colonization by island lizards. Journal of Biogeography 32:929938.CrossRefGoogle Scholar
ORD, T. J. 2008. Dawn and dusk “chorus” in visually communicating Jamaican Anolis lizards. American Naturalist 172:585592.CrossRefGoogle Scholar
PIZZATTO, L., ALMEIDA-SANTOS, S. M. & SHINE, R. 2007. Life-history adaptations to arboreality in snakes. Ecology 88:359366.CrossRefGoogle ScholarPubMed
ROUGHGARDEN, J. 1995. Anolis lizards of the Caribbean: ecology, evolution, and plate tectonics. Oxford University Press, Oxford. 226 pp.CrossRefGoogle Scholar
SAVAGE, J. M. 2002. The amphibians and reptiles of Costa Rica: a herpetofauna between two continents, between two seas. University of Chicago Press, Chicago. 954 pp.Google Scholar
SCHLUTER, D. 2000. The ecology of adaptive radiation. Oxford University Press, Oxford. 296 pp.CrossRefGoogle Scholar
SOKAL, R. R. & ROHLF, F. J. 1995. Biometry (Third edition). W.H. Freeman and Company, New York. 880 pp.Google Scholar
VANHOOYDONCK, B., HERREL, A., VAN DAMME, R., MEYERS, J. J. & IRSCHICK, D. J. 2005a. The relationship between dewlap size and performance changes with age and sex in a green anole (Anolis carolinensis) lizard population. Behavioral Ecology and Sociobiology 59:157165.CrossRefGoogle Scholar
VANHOOYDONCK, B., HERREL, A. Y., VAN DAMME, R. & IRSCHICK, D. J. 2005b. Does dewlap size predict male biting performance in Jamaican Anolis lizards? Functional Ecology 19:3842.CrossRefGoogle Scholar
VANHOOYDONCK, B., HERREL, A., MEYERS, J. J. & IRSCHICK, D. J. 2009. What determines dewlap diversity in Anolis lizards? An among-island comparison. Journal of Evolutionary Biology 22:293305.CrossRefGoogle ScholarPubMed
WALLACE, A. R. 1902. Island life. Macmillan, London. 412 pp.Google Scholar
WARREN, D. L., GLOR, R. E. & TURELLI, M. 2011. Environmental niche equivalency versus conservatism: quantitative approaches to niche evolution. Evolution 62:28682883.CrossRefGoogle Scholar
WHITTAKER, R. J. & Fernández-Palacios, J. M. 2007. Island biogeography: ecology, evolution, and conservation. Oxford University Press, Oxford. 416 pp.Google Scholar
WILSON, L. D. & HAHN, D. E. 1973. The herpetofauna of the Islas de la Bahia, Honduras. Bulletin of the Florida State Museum 2:93150.Google Scholar