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ArticlesThe niche, biogeography and species interactions
Published:27 August 2011https://doi.org/10.1098/rstb.2011.0059
Abstract
In this paper, I review the relevance of the niche to biogeography, and what biogeography may tell us about the niche. The niche is defined as the combination of abiotic and biotic conditions where a species can persist. I argue that most biogeographic patterns are created by niche differences over space, and that even ‘geographic barriers’ must have an ecological basis. However, we know little about specific ecological factors underlying most biogeographic patterns. Some evidence supports the importance of abiotic factors, whereas few examples exist of large-scale patterns created by biotic interactions. I also show how incorporating biogeography may offer new perspectives on resource-related niches and species interactions. Several examples demonstrate that even after a major evolutionary radiation within a region, the region can still be invaded by ecologically similar species from another clade, countering the long-standing idea that communities and regions are generally ‘saturated’ with species. I also describe the somewhat paradoxical situation where competition seems to limit trait evolution in a group, but does not prevent co-occurrence of species with similar values for that trait (called here the ‘competition–divergence–co-occurrence conundrum’). In general, the interface of biogeography and ecology could be a major area for research in both fields.
Footnotes
References
- 1
Wiens J. J.& Donoghue M. J. . 2004Historical biogeography, ecology, and species richness. Trends Ecol. Evol. 19, 639–644.doi:10.1016/j.tree.2004.09.011 (doi:10.1016/j.tree.2004.09.011). Crossref, PubMed, ISI, Google Scholar - 2
Lomolino M. V., Riddle B. R.& Brown J. H. . 2006Biogeography,3rd edn. Sunderland, MA: Sinauer Associates. Google Scholar - 3
Ricklefs R. E. . 1987Community diversity: relative roles of local and regional processes. Science 235, 167–171.doi:10.1126/science.235.4785.167 (doi:10.1126/science.235.4785.167). Crossref, PubMed, ISI, Google Scholar - 4
Ricklefs R. E.& Schluter D. (eds)1993Species diversity in ecological communities: historical and geographical perspectives.Chicago, IL: University of Chicago Press. Google Scholar - 5
Hutchinson G. E. . 1957Concluding remarks. Cold Spring Harbor Symp. 22, 415–427. Crossref, Google Scholar - 6
Holt R. D. . 2009Bringing the Hutchinsonian niche into the 21st century: ecological and evolutionary perspectives. Proc. Natl Acad. Sci. USA 106, 19 659–19 665.doi:10.1073/pnas.0905137106 (doi:10.1073/pnas.0905137106). Crossref, ISI, Google Scholar - 7
Soberon J. . 2007Grinnellian and Eltonian niches and geographic distributions of species. Ecol. Lett. 10, 1115–1123.doi:10.1111/j.1461-0248.2007.01107.x (doi:10.1111/j.1461-0248.2007.01107.x). Crossref, PubMed, ISI, Google Scholar - 8
Wiens J. J.& Graham C. H. . 2005Niche conservatism: integrating evolution, ecology, and conservation biology. Ann. Rev. Ecol. Evol. Syst. 36, 519–539.doi:10.1146/annurev.ecolsys.36.102803.095431 (doi:10.1146/annurev.ecolsys.36.102803.095431). Crossref, ISI, Google Scholar - 9
- 10
Chase J. M.& Myers J. A. . 2011Disentangling the importance of ecological niches from stochastic processes across scales. Phil. Trans. R. Soc. B 366, 2351–2363.doi:10.1098/rstb.2011.0063 (doi:10.1098/rstb.2011.0063). Link, ISI, Google Scholar - 11
Weiher E., Freund D., Bunton T., Stefanski A., Lee T.& Bentivenga S. . 2011Advances, challenges, and a developing synthesis of ecological community assembly theory. Phil. Trans. R. Soc. B 366, 2403–2413.doi:10.1098/rstb.2011.0056 (doi:10.1098/rstb.2011.0056). Link, ISI, Google Scholar - 12
Schurr F. M., Midgley G. F., Rebelo A. G., Reeves G., Poschlod P.& Higgins S. I. . 2007Colonization and persistence ability explain the extent to which plant species fill their potential range. Global. Ecol. Biogeogr. 16, 449–459.doi:10.1111/j.1466-8238.2006.00293.x (doi:10.1111/j.1466-8238.2006.00293.x). Crossref, Google Scholar - 13
Paul J. R., Morton C., Taylor C. M.& Tonsor S. J. . 2009Evolutionary time for dispersal limits the extent but not the occupancy of species' potential ranges in the tropical plant genus Psychotria (Rubiaceae). Am. Nat. 173, 188–199.doi:10.1086/595762 (doi:10.1086/595762). Crossref, PubMed, ISI, Google Scholar - 14
Sexton J. P., McIntyre P. J., Angert A. L.& Rice K. J. . 2009The evolution and ecology of geographic range limits. Ann. Rev. Ecol. Evol. Syst. 40, 415–436.doi:10.1146/annurev.ecolsys.110308.120317 (doi:10.1146/annurev.ecolsys.110308.120317). Crossref, ISI, Google Scholar - 15
Gross S. J.& Price T. D. . 2000Determinants of the northern and southern range limits of a warbler. J. Biogeogr. 27, 869–878.doi:10.1046/j.1365-2699.2000.00440.x (doi:10.1046/j.1365-2699.2000.00440.x). Crossref, ISI, Google Scholar - 16
- 17
Kirkpatrick M.& Barton N. H. . 1997Evolution of a species' range. Am. Nat. 150, 1–23.doi:10.1086/286054 (doi:10.1086/286054). Crossref, PubMed, ISI, Google Scholar - 18
Gaston K. J. . 2003The structure and dynamics of geographic ranges. Oxford, UK: Oxford University Press. Google Scholar - 19
Gaston K. J. . 2009Geographic range limits: achieving synthesis. Proc. R. Soc. B 276, 1395–1406.doi:10.1098/rspb.2008.1480 (doi:10.1098/rspb.2008.1480). Link, ISI, Google Scholar - 20
Davis M. B.& Shaw R. G. . 2001Range shifts and adaptive responses to Quaternary climate change. Science 292, 673–679.doi:10.1126/science.292.5517.673 (doi:10.1126/science.292.5517.673). Crossref, PubMed, ISI, Google Scholar - 21
Thompson J. N. . 2005The geographic mosaic of coevolution.Chicago, IL: University of Chicago Press. Crossref, Google Scholar - 22
Wiens J. J., 2010Niche conservatism as an emerging principle in ecology and conservation biology. Ecol. Lett. 13, 1310–1324.doi:10.1111/j.1461-0248.2010.01515.x (doi:10.1111/j.1461-0248.2010.01515.x). Crossref, PubMed, ISI, Google Scholar - 23
Wiens J. J., Graham C. H., Moen D. S., Smith S. A.& Reeder T. W. . 2006Evolutionary and ecological causes of the latitudinal diversity gradient in hylid frogs: treefrog trees unearth the roots of high tropical diversity. Am. Nat. 168, 579–596.doi:10.1086/507882 (doi:10.1086/507882). Crossref, PubMed, ISI, Google Scholar - 24
Stephens P. R.& Wiens J. J. . 2009Bridging the gap between historical biogeography and community ecology: niche conservatism and community structure in emydid turtles. Mol. Ecol. 18, 4664–4679.doi:10.1111/j.1365-294X.2009.04378.x (doi:10.1111/j.1365-294X.2009.04378.x). Crossref, PubMed, ISI, Google Scholar - 25
Kozak K. H.& Wiens J. J. . 2010Niche conservatism drives elevational diversity patterns in Appalachian salamanders. Am. Nat. 176, 40–54.doi:10.1086/653031 (doi:10.1086/653031). Crossref, PubMed, ISI, Google Scholar - 26
Rangel T. F. L. V. B., Diniz-Filho J. A. F.& Colwell R. K. . 2007Species richness and evolutionary niche dynamics: a spatial pattern-oriented simulation experiment. Am. Nat. 170, 602–616.doi:10.1086/521315 (doi:10.1086/521315). Crossref, PubMed, ISI, Google Scholar - 27
Evans M. E. K., Smith S. A., Flynn R.& Donoghue M. J. . 2009Climate, niche evolution, and diversification of the ‘bird-cage’ evening primroses (Oenothera, sections Anogra and Kleinia). Am. Nat. 173, 225–240.doi:10.1086/595757 (doi:10.1086/595757). Crossref, PubMed, ISI, Google Scholar - 28
Peterson A. T., Soberon J.& Sanchez-Cordero V. . 1999Conservatism of ecological niches in evolutionary time. Science 285, 1265–1267.doi:10.1126/science.285.5431.1265 (doi:10.1126/science.285.5431.1265). Crossref, PubMed, ISI, Google Scholar - 29
Kozak K. H.& Wiens J. J. . 2006Does niche conservatism drive speciation? A case study in North American salamanders. Evolution 60, 2604–2621. Crossref, PubMed, ISI, Google Scholar - 30
Warren D. L., Glor R. E.& Turelli M. . 2008Environmental niche equivalency versus conservatism: quantitative approaches to niche evolution. Evolution 62, 2868–2883.doi:10.1111/j.1558-5646.2008.00482.x (doi:10.1111/j.1558-5646.2008.00482.x). Crossref, PubMed, ISI, Google Scholar - 31
Cooper N., Jetz W.& Freckleton R. P. . 2010Phylogenetic comparative approaches for studying niche conservatism. J. Evol. Biol. 23, 2529–2539.doi:10.1111/j.1420-9101.2010.02144.x (doi:10.1111/j.1420-9101.2010.02144.x). Crossref, PubMed, ISI, Google Scholar - 32
Hua X.& Wiens J. J. . 2010Latitudinal variation in speciation mechanisms in frogs. Evolution 64, 429–443.doi:10.1111/j.1558-5646.2009.00836.x (doi:10.1111/j.1558-5646.2009.00836.x). Crossref, PubMed, ISI, Google Scholar - 33
Smith S. A.& Donoghue M. J. . 2010Combining historical biogeography with niche modeling in the Caprifolium clade of Lonicera (Caprifoliaceae, Dipsacales). Syst. Biol. 590, 322–341.doi:10.1093/sysbio/syq011 (doi:10.1093/sysbio/syq011). Crossref, ISI, Google Scholar - 34
Crisp M. D., 2009Phylogenetic biome conservatism on a global scale. Nature 458, 754–756.doi:10.1038/nature07764 (doi:10.1038/nature07764). Crossref, PubMed, ISI, Google Scholar - 35
Li J., He Q., Hua X., Zho J., Xu H., Chen J.& Fu C. . 2009Climate and history explain the species richness peak at midelevation for Schizothorax fishes (Cypriniformes: Cyprinidae) distributed in the Tibetan Plateau and its adjacent regions. Glob. Ecol. Biogeogr. 18, 264–272.doi:10.1111/j.1466-8238.2008.00430.x (doi:10.1111/j.1466-8238.2008.00430.x). Crossref, Google Scholar - 36
Smith S. A., Stephens P. R.& Wiens J. J. . 2005Replicate patterns of species richness, historical biogeography, and phylogeny in Holarctic treefrogs. Evolution 59, 2433–2450. Crossref, PubMed, ISI, Google Scholar - 37
Pyron R. A.& Burbrink F. T. . 2009Can the tropical conservatism hypothesis explain temperate species richness patterns? An inverse latitudinal biodiversity gradient in the New World snake tribe Lampropeltini. Glob. Ecol. Biogeogr. 18, 406–415.doi:10.1111/j.1466-8238.2009.00462.x (doi:10.1111/j.1466-8238.2009.00462.x). Crossref, Google Scholar - 38
Buckley L. B., 2010Phylogeny, niche conservatism, and the latitudinal diversity gradient in mammals. Proc. R. Soc. B 277, 2131–2138.doi:10.1098/rspb.2010.0179 (doi:10.1098/rspb.2010.0179). Link, ISI, Google Scholar - 39
Kozak K. H.& Wiens J. J. . 2010Accelerated rates of climatic-niche evolution underlie rapid species diversification. Ecol. Lett. 13, 1378–1389.doi:10.1111/j.1461-0248.2010.01530.x (doi:10.1111/j.1461-0248.2010.01530.x). Crossref, PubMed, ISI, Google Scholar - 40
Merriam C. H. . 1894Laws of temperature control of the geographic distribution of terrestrial animals and plants. Natl Geogr. 6, 229–238. Google Scholar - 41
John-Alder H. B., Morin P. J.& Lawler S. P. . 1988Thermal physiology, phenology, and distribution of tree frogs. Am. Nat. 132, 506–520.doi:10.1086/284868 (doi:10.1086/284868). Crossref, ISI, Google Scholar - 42
Vitt L. J.& Caldwell J. P. . 2009Herpetology: an introductory biology of reptiles and amphibians, 3rd edn.San Diego, CA: Academic Press. Google Scholar - 43NatureServe. 2004InfoNatura: birds, mammals, and amphibians of Latin America, version 4.1.Arlington, VA: NatureServe. See http://www.natureserve.org/infonatura. Google Scholar
- 44
Sax D. F. . 2001Latitudinal gradients and geographic ranges of exotic species: implications for biogeography. J. Biogeogr. 28, 139–150.doi:10.1046/j.1365-2699.2001.00536.x (doi:10.1046/j.1365-2699.2001.00536.x). Crossref, ISI, Google Scholar - 45
Peterson A. T.& Vieglais D. A. . 2001Predicting species invasions using ecological niche modeling: new approaches from bioinformatics attack a pressing problem. Bioscience 51, 363–371.doi:10.1641/0006-3568(2001)051[0363:PSIUEN]2.0.CO;2 (doi:10.1641/0006-3568(2001)051[0363:PSIUEN]2.0.CO;2). Crossref, ISI, Google Scholar - 46
Peterson A. T. . 2003Predicting the geography of species invasions via ecological niche modeling. Q. Rev. Biol 78, 419–433.doi:10.1086/378926 (doi:10.1086/378926). Crossref, PubMed, ISI, Google Scholar - 47
Broennimann O., Treier U. A., Muller-Scharer H., Thuiller W., Peterson A. T.& Guisan A. . 2007Evidence of climatic niche shift during biological invasion. Ecol. Lett. 10, 701–709.doi:10.1111/j.1461-0248.2007.01060.x (doi:10.1111/j.1461-0248.2007.01060.x). Crossref, PubMed, ISI, Google Scholar - 48
Beaumont L. J., Gallagher R. V., Thuiller W., Downey P. O., Leishman M. R.& Hughes L. . 2009Different climatic envelopes among invasive populations may lead to underestimations of current and future biological invasions. Divers. Distrib. 15, 409–420.doi:10.1111/j.1472-4642.2008.00547.x (doi:10.1111/j.1472-4642.2008.00547.x). Crossref, ISI, Google Scholar - 49
Rodder D.& Lotters S. . 2009Niche shift versus niche conservatism? Climatic characteristics of the native and invasive ranges of the Mediterranean house gecko (Hemidactylus turcicus). Glob. Ecol. Biogeogr. 18, 674–687.doi:10.1111/j.1466-8238.2009.00477.x (doi:10.1111/j.1466-8238.2009.00477.x). Crossref, Google Scholar - 50
Medley K. A. . 2010Niche shifts during the global invasion of the Asian tiger mosquito, Aedes albopictus Skuse (Culicidae), revealed by reciprocal distribution models. Global Ecol. Biogeogr. 19, 122–133.doi:10.1111/j.1466-8238.2009.00497.x (doi:10.1111/j.1466-8238.2009.00497.x). Crossref, Google Scholar - 51
Parmesan C.& Yohe G. . 2003A globally coherent fingerprint of climate change impacts across natural systems. Nature 421, 37–42.doi:10.1038/nature01286 (doi:10.1038/nature01286). Crossref, PubMed, ISI, Google Scholar - 52
Tingley M. W., Monahan W. B., Beissinger S. R.& Moritz C. . 2009Birds track their Grinnellian niche through a century of climate change. Proc. Natl Acad. Sci. USA 106, 19 637–19 643.doi:10.1073/pnas.0901562106 (doi:10.1073/pnas.0901562106). Crossref, ISI, Google Scholar - 53
Connell J. H. . 1961The influence of interspecific competition and other factors on the distribution of the barnacle Chthamalus stellatus. Ecology 42, 710–723.doi:10.2307/1933500 (doi:10.2307/1933500). Crossref, ISI, Google Scholar - 54
Brown J. H. . 1971Mechanisms of competitive exclusion between two species of chipmunks (Eutamis). Ecology 52, 306–311. Crossref, ISI, Google Scholar - 55
Diamond J. M. . 1975Assembly of species communities. Ecology and evolution of communities (eds, Cody M. L.& Diamond J. M. ), pp. 342–444. Cambridge, MA: Harvard University Press. Google Scholar - 56
McPeek M. A. . 1990Determination of species composition in the Enallagma damselfly assemblages of permanent lakes. Ecology 71, 83–98.doi:10.2307/1940249 (doi:10.2307/1940249). Crossref, ISI, Google Scholar - 57
McPeek M. A. . 1998The consequences of changing the top predator in a food web: a comparative experimental approach. Ecol. Monogr. 68, 1–23. ISI, Google Scholar - 58
Anderson R. P., Peterson A. T.& Gómez-Laverde M. . 2002Using niche-based GIS modeling to test geographic predictions of competitive exclusion and competitive release in South American pocket mice. Oikos 98, 3–16.doi:10.1034/j.1600-0706.2002.t01-1-980116.x (doi:10.1034/j.1600-0706.2002.t01-1-980116.x). Crossref, ISI, Google Scholar - 59AmphibiaWeb. 2011Information on amphibian biology and conservation.Berkeley, CA: AmphibiaWeb. See http://amphibiaweb.org/ (accessed January 2011). Google Scholar
- 60
Deban S. M., Wake D. B.& Roth G. . 1997Salamander with a ballistic tongue. Nature 389, 27–28.doi:10.1038/37898 (doi:10.1038/37898). Crossref, PubMed, ISI, Google Scholar - 61
Jockusch E. L., Yanev K. P.& Wake D. B. . 2002Molecular phylogenetics and speciation in a complex of cryptic salamander species (Plethodontidae: Batrachoseps). Biol. J. Linn. Soc. 76, 361–391.doi:10.1111/j.1095-8312.2002.tb01703.x (doi:10.1111/j.1095-8312.2002.tb01703.x). Crossref, Google Scholar - 62
Rosenzweig M. L.& McCord R. D. . 1991Incumbent replacement: evidence for long-term evolutionary progress. Paleobiology 17, 202–213. Crossref, ISI, Google Scholar - 63
Vermeij G. J. . 1991When biotas meet: understanding biotic interchange. Science 253, 1099–1104.doi:10.1126/science.253.5024.1099 (doi:10.1126/science.253.5024.1099). Crossref, PubMed, ISI, Google Scholar - 64
Sax D. F.& Gaines S. D. . 2008Species invasions and extinction: the future of native biodiversity on islands. Proc. Natl Acad. Sci. USA 105, 114 900–114 907.doi:10.1073/pnas.0802290105 (doi:10.1073/pnas.0802290105). Crossref, ISI, Google Scholar - 65
Skerratt L. F., Berger L., Speare R., Cashins S., McDonald K. R., Phillott A. D., Hines H. B.& Kenyon N. . 2007Spread of chytridiomycosis has caused the rapid global decline and extinction of frogs. Ecohealth 4, 125–134.doi:10.1007/s10393-007-0093-5 (doi:10.1007/s10393-007-0093-5). Crossref, ISI, Google Scholar - 66IUCN. 2010. IUCN red list of threatened species. Version 2010.4. See http://www.iucnredlist.org (accessed 16 January 2011). Google Scholar
- 67
Lips K. R., Diffendorfer J., Mendelson J.& Sears M. . 2008Riding the wave: climate change, emerging infectious disease and amphibian declines. PLoS Biol. 6, e72.doi:10.1371/journal.pbio.0060072 (doi:10.1371/journal.pbio.0060072). Crossref, PubMed, ISI, Google Scholar - 68
Loreau M. . 2000Are communities saturated? On the relationship between α, β and γ diversity. Ecol. Lett. 3, 73–76.doi:10.1046/j.1461-0248.2000.00127.x (doi:10.1046/j.1461-0248.2000.00127.x). Crossref, ISI, Google Scholar - 69
Moen D. S., Smith S. A.& Wiens J. J. . 2009Community assembly through evolutionary diversification and dispersal in Middle American treefrogs. Evolution 63, 3228–3247.doi:10.1111/j.1558-5646.2009.00810.x (doi:10.1111/j.1558-5646.2009.00810.x). Crossref, PubMed, ISI, Google Scholar - 70
Duellman W. E. . 2001The hylid frogs of Middle America, 2nd edn.Lawrence, KS: Society for the Study of Amphibians and Reptiles. Google Scholar - 71
Moen D. S.& Wiens J. J. . 2009Phylogenetic evidence for competitively-driven divergence: body-size evolution in Caribbean treefrogs (Hylidae: Osteopilus). Evolution 63, 195–214.doi:10.1111/j.1558-5646.2008.00538.x (doi:10.1111/j.1558-5646.2008.00538.x). Crossref, PubMed, ISI, Google Scholar - 72
Duellman W. E. . 2005Cusco Amazonico: the lives of amphibians and reptiles in an Amazonian rainforest.Ithaca, NY: Comstock Publishing Associates. Google Scholar - 73
Wiens J. J., Pyron R. A.& Moen D. S. . 2011Phylogenetic origins of local-scale diversity patterns and the origins of Amazonian megadiversity. Ecol. Lett.doi:10.1111/j.1461-0248.2011.01625.x (doi:10.1111/j.1461-0248.2011.01625.x). Crossref, PubMed, ISI, Google Scholar - 74
O'Meara B. C., Ane C., Sanderson M. J.& Wainwright P. C. . 2006Testing for different rates of continuous trait evolution using likelihood. Evolution 60, 922–933. Crossref, PubMed, ISI, Google Scholar - 75
Duellman W. E. . 1978The biology of an equatorial herpetofauna in Amazonian Ecuador. Misc. Publ. Mus. Nat. Hist. Univ. Kansas 65, 1–352. Google Scholar - 76
Roelants K., Gower D. J., Wilkinson M., Loader S. P., Biju S. D., Guillaume K.& Bossuyt F. . 2007Patterns of diversification in the history of modern amphibians. Proc. Natl Acad. Sci. USA 104, 887–892.doi:10.1073/pnas.0608378104 (doi:10.1073/pnas.0608378104). Crossref, PubMed, ISI, Google Scholar - 77
Wiens J. J., Sukumaran J., Pyron R. A.& Brown R. M. . 2009Evolutionary and biogeographic origins of high tropical diversity in Old World frogs (Ranidae). Evolution 63, 1217–1231.doi:10.1111/j.1558-5646.2009.00610.x (doi:10.1111/j.1558-5646.2009.00610.x). Crossref, PubMed, ISI, Google Scholar - 78
Vences M., Vieites D. R., Glaw F., Brinkmann H., Kosuch J., Veith M.& Meyer A. . 2003Multiple overseas dispersal in amphibians. Proc. R. Soc. B 270, 2435–2442.doi:10.1098/rspb.2003.2516 (doi:10.1098/rspb.2003.2516). Link, ISI, Google Scholar - 79
Glaw F.& Vences M. . 2007Field guide to the amphibians and reptiles of Madagascar,3rd edn.Köln, Germany: Vences and Glaw Verlag. Google Scholar - 80
Wiens J. J., Kuczynski C., Duellman W. E.& Reeder T. W. . 2007Loss and re-evolution of complex life cycles in marsupial frogs: can ancestral trait reconstruction mislead?Evolution 61, 1886–1899.doi:10.1111/j.1558-5646.2007.00159.x (doi:10.1111/j.1558-5646.2007.00159.x). Crossref, PubMed, ISI, Google Scholar - 81
Smith S. A., Nieto Montes de Oca A., Reeder T. W.& Wiens J. J. . 2007A phylogenetic perspective on elevational species richness patterns in Middle American treefrogs: why so few species in lowland tropical rainforests?Evolution 61, 1188–1207.doi:10.1111/j.1558-5646.2007.00085.x (doi:10.1111/j.1558-5646.2007.00085.x). Crossref, PubMed, ISI, Google Scholar - 82
Guayasamin J. M., Castroviejo-Fisher S., Ayarzagüena J., Trueb L.& Vilà C. . 2008Phylogenetic relationships of glassfrogs (Centrolenidae) based on mitochondrial and nuclear genes. Mol. Phylogenet. Evol. 48, 574–595.doi:10.1016/j.ympev.2008.04.012 (doi:10.1016/j.ympev.2008.04.012). Crossref, PubMed, ISI, Google Scholar - 83
Wiens J. J., Brandley M. C.& Reeder T. W. . 2006Why does a trait evolve multiple times within a clade? Repeated evolution of snake-like body form in squamate reptiles. Evolution 60, 123–141. PubMed, ISI, Google Scholar - 84
Uetz P. . 2011TIGR Reptile Database. See http://www.reptile-database.org/ (accessed January 2011). Google Scholar - 85
Branch B. . 1998Field guide to the snakes and other reptiles of southern Africa.Sanibel Island, FL: Ralph Curtis Books. Google Scholar - 86
Conant R.& Collins J. T. . 1991A field guide to reptiles and amphibians of Eastern and Central North America, 3rd edn.Boston, MA: Houghton-Mifflin. Google Scholar - 87
Achaval F.& Olmos A. . 1997Anfibios y reptiles de Uruguay.Montevideo, Uruguay: Barreiro y Ramos S.A. Google Scholar - 88
Cogger H. G. . 1992Reptiles and amphibians of Australia, 5th edn. Hollywood, FL: Ralph Curtis Books. Google Scholar - 89
Rabosky D. L. . 2009Ecological limits and diversification rate: alternative paradigms to explain the variation in species richness among clades and regions. Ecol. Lett. 12, 735–743.doi:10.1111/j.1461-0248.2009.01333.x (doi:10.1111/j.1461-0248.2009.01333.x). Crossref, PubMed, ISI, Google Scholar - 90
Harrison S.& Cornell H. V. . 2008Toward a better understanding of regional causes of local species richness. Ecol. Lett. 11, 969–979.doi:10.1111/j.1461-0248.2008.01210.x (doi:10.1111/j.1461-0248.2008.01210.x). Crossref, PubMed, ISI, Google Scholar - 91
Stephens P. R.& Wiens J. J. . 2003Explaining species richness from continents to communities: the time-for-speciation effect in emydid turtles. Am. Nat. 161, 112–128.doi:10.1086/345091 (doi:10.1086/345091). Crossref, PubMed, ISI, Google Scholar - 92
Stevens R. D. . 2006Historical processes enhance patterns of diversity along latitudinal gradients. Proc. R. Soc. B 273, 2283–2289.doi:10.1098/rspb.2006.3596 (doi:10.1098/rspb.2006.3596). Link, ISI, Google Scholar - 93
Wiens J. J. . 2011The causes of species richness patterns across space, time, and clades and the role of ‘ecological limits.’. Q. Rev. Biol.. Crossref, PubMed, ISI, Google Scholar - 94
Schluter D. . 2000The ecology of adaptive radiations.Oxford, UK: Oxford University Press. Google Scholar - 95
Mahler D. L., Revell L. J., Glor R. E.& Losos J. B. . 2010Ecological opportunity and the rate of morphological evolution in the diversification of Greater Antillean anoles. Evolution 64, 2731–2745.doi:10.1111/j.1558-5646.2010.01026.x (doi:10.1111/j.1558-5646.2010.01026.x). Crossref, PubMed, ISI, Google Scholar - 96
MacArthur R. H. . 1958Population ecology of some warblers of northeastern coniferous forests. Ecology 39, 599–619.doi:10.2307/1931600 (doi:10.2307/1931600). Crossref, ISI, Google Scholar - 97
Leibold M. A.& McPeek M. A. . 2006Coexistence of the niche and neutral perspectives in community ecology. Ecology 87, 1399–1410.doi:10.1890/0012-9658(2006)87[1399:COTNAN]2.0.CO;2 (doi:10.1890/0012-9658(2006)87[1399:COTNAN]2.0.CO;2). Crossref, PubMed, ISI, Google Scholar - 98
Scheffer M.& van Nes E. H. . 2006Self-organized similarity, the evolutionary emergence of groups of similar species. Proc. Natl Acad. Sci. USA 103, 6230–6235.doi:10.1073/pnas.0508024103 (doi:10.1073/pnas.0508024103). Crossref, PubMed, ISI, Google Scholar - 99
Kozak K. H., Mendyk R. W.& Wiens J. J. . 2009Can parallel diversification occur in sympatry? Repeated patterns of body-size evolution in co-existing clades of North American salamanders. Evolution 63, 1769–1784.doi:10.1111/j.1558-5646.2009.00680.x (doi:10.1111/j.1558-5646.2009.00680.x). Crossref, PubMed, ISI, Google Scholar - 100
McPeek M. A. . 2008The ecological dynamics of clade diversification and community assembly. Am. Nat. 172, E270–E284.doi:10.1086/593137 (doi:10.1086/593137). Crossref, PubMed, ISI, Google Scholar - 101
Webb C. O., Ackerly D. D., McPeek M. A.& Donoghue M. J. . 2002Phylogenies and community ecology. Ann. Rev. Ecol. Evol. Syst. 33, 475–505.doi:10.1146/annurev.ecolsys.33.010802.150448 (doi:10.1146/annurev.ecolsys.33.010802.150448). Crossref, ISI, Google Scholar - 102
Cavender-Bares J., Ackerly D. D., Baum D. A.& Bazzaz F. A. . 2004Phylogenetic overdispersion in Floridian oak communities. Am. Nat. 163, 823–843.doi:10.1086/386375 (doi:10.1086/386375). Crossref, PubMed, ISI, Google Scholar - 103
Cavender-Bares J., Kozak K. H., Fine P. V. A.& Kembel S. W. . 2009The merging of community ecology and phylogenetic biology. Ecol. Lett. 12, 693–715.doi:10.1111/j.1461-0248.2009.01314.x (doi:10.1111/j.1461-0248.2009.01314.x). Crossref, PubMed, ISI, Google Scholar - 104
Willig M. R., Kaufman D. M.& Stevens R. D. . 2003Latitudinal gradients of biodiversity: pattern, process, scale, and synthesis. Ann. Rev. Ecol. Evol. Syst. 34, 273–309.doi:10.1146/annurev.ecolsys.34.012103.144032 (doi:10.1146/annurev.ecolsys.34.012103.144032). Crossref, ISI, Google Scholar - 105
Mittelbach G. G., 2007Evolution and the latitudinal diversity gradient: speciation, extinction and biogeography. Ecol. Lett. 10, 315–331.doi:10.1111/j.1461-0248.2007.01020.x (doi:10.1111/j.1461-0248.2007.01020.x). Crossref, PubMed, ISI, Google Scholar - 106
Ricklefs R. E. . 2004A comprehensive framework for global patterns in biodiversity. Ecol. Lett. 7, 1–15.doi:10.1046/j.1461-0248.2003.00554.x (doi:10.1046/j.1461-0248.2003.00554.x). Crossref, ISI, Google Scholar
