Niche differentiation in Mexican birds: using point occurrences to detect ecological innovation Export

@article{citeulike:3733868, abstract = {The development of quantitative models of species' distributions has largely ignored the potential for intraspecific variation in species' niche requirements. Application of such models may nevertheless provide a rich, untapped opportunity to address the basic issue of niche conservatism vs. evolution. We illustrate this potential using genetic algorithms coupled with geographical information systems, which provide a powerful and novel approach to characterizing species' ecological niches and geographical distributions. Our example consists of several species of Mexican birds with recognized subspecies, and associated climatic and vegetation data. Our basic protocol is to develop an ecological niche model for each subspecies, and use this model to predict distributions of other subspecies. In some cases, the ecological niche model inferred for one subspecies provides an excellent descriptor of other subspecies' ranges, whereas in other cases the prediction is rather poor. We suggest that the latter may reveal the potential existence of evolved, intraspecific niche differentiation. We discuss alternative, non-evolutionary explanations, and point out potential implications of our results for predictive models of species' invasions.}, address = {Natural History Museum, The University of Kansas, Lawrence, KS 66045, USA ; Department of Zoology, University of Florida, Gainesville, FL 32611, USA}, author = {Peterson, Townsend A. and Holt, Robert D.}, citeulike-article-id = {3733868}, citeulike-linkout-0 = {http://dx.doi.org/10.1046/j.1461-0248.2003.00502.x}, citeulike-linkout-1 = {http://www3.interscience.wiley.com/cgi-bin/abstract/118853229/ABSTRACT}, doi = {10.1046/j.1461-0248.2003.00502.x}, journal = {Ecology Letters}, keywords = {distribution-modeling, garp, niches}, number = {8}, pages = {774--782}, posted-at = {2008-12-02 02:05:28}, priority = {2}, title = {Niche differentiation in Mexican birds: using point occurrences to detect ecological innovation}, url = {http://dx.doi.org/10.1046/j.1461-0248.2003.00502.x}, volume = {6}, year = {2003} }

TY - JOUR ID - citeulike:3733868 L3 - citeulike-article-id:3733868 N2 - The development of quantitative models of species' distributions has largely ignored the potential for intraspecific variation in species' niche requirements. Application of such models may nevertheless provide a rich, untapped opportunity to address the basic issue of niche conservatism vs. evolution. We illustrate this potential using genetic algorithms coupled with geographical information systems, which provide a powerful and novel approach to characterizing species' ecological niches and geographical distributions. Our example consists of several species of Mexican birds with recognized subspecies, and associated climatic and vegetation data. Our basic protocol is to develop an ecological niche model for each subspecies, and use this model to predict distributions of other subspecies. In some cases, the ecological niche model inferred for one subspecies provides an excellent descriptor of other subspecies' ranges, whereas in other cases the prediction is rather poor. We suggest that the latter may reveal the potential existence of evolved, intraspecific niche differentiation. We discuss alternative, non-evolutionary explanations, and point out potential implications of our results for predictive models of species' invasions. IS - 8 JF - Ecology Letters AD - Natural History Museum, The University of Kansas, Lawrence, KS 66045, USA ; Department of Zoology, University of Florida, Gainesville, FL 32611, USA EP - 782 TI - Niche differentiation in Mexican birds: using point occurrences to detect ecological innovation VL - 6 SP - 774 KW - distribution-modeling KW - garp KW - niches AU - Peterson, Townsend AU - Holt, Robert PY - 2003/// UR - http://dx.doi.org/10.1046/j.1461-0248.2003.00502.x ER -