ANCIENT COLONIZATION PREDICTS RECENT NATURALIZATION IN ANOLIS LIZARDS
Article first published online: 8 MAR 2011
© 2011 The Author(s). Evolution© 2011 The Society for the Study of Evolution.
Volume 65, Issue 4, pages 1195–1202, April 2011
How to Cite
Poe, S., Giermakowski, J. T., Latella, I., Schaad, E. W., Hulebak, E. P. and Ryan, M. J. (2011), ANCIENT COLONIZATION PREDICTS RECENT NATURALIZATION IN ANOLIS LIZARDS. Evolution, 65: 1195–1202. doi: 10.1111/j.1558-5646.2011.01238.x
- Issue published online: 4 APR 2011
- Article first published online: 8 MAR 2011
- Accepted manuscript online: 1 FEB 2011 07:48AM EST
- Received February 25, 2009, Accepted January 7, 2011
- natural processes;
- solitary species
The distributions and characteristics of naturalized species may be explained by novel anthropogenous aspects of world biogeography such as the creation of favorable transport environments for propagules on ships. Conversely, the unprecedented connectivity of humans may simply accelerate omnipresent ecological and evolutionary forces, for example, ships may allow species that are generally good dispersers to disperse more quickly. As a null hypothesis, there may be no human component to species naturalization. The first hypothesis predicts that naturalized species will possess unusual characteristics specific to interactions with humans. The latter two hypotheses predict similarity between ancient colonizers and recently naturalized species. In this article, we present a test of the latter hypotheses and show how they may be reconciled with the former. We show that species of Anolis lizard that are ancient solitary colonizers share characteristics of size, shape, scalation, and phylogeny with naturalized species of Anolis. Characteristics of ancient solitary colonizers predict naturalization approximately as well as characteristics of naturalized species themselves. These results suggest the existence of a general colonizing type of Anolis, and that contemporary patterns of naturalization are at least partially explained by abilities that are unrelated to interactions with humans.