Are there body size implications for the success of globally introduced land birds?
Abstract
Verbal models have hypothesized a relation between body size and the successful introduction of animal species. This relation is largely based on studies of intrinsic rate of increase in what have been termed “colonizing” species. From these studies it has been predicted that introduction success should be negatively correlated with body size across taxa but positively correlated within closely related taxa. T examine this relation for globally introduced land birds. Introduced land birds are. on average, larger bodied than extant land bird species. Across species, families, and higher family nodes, global introduction success is significantly related to decreasing body size. However, within taxa there is a significant positive relationship between introduction success and body size. I discuss possible explanations for the observed relations and conclude that an indirect but genuine relationship between the introduction success of land birds and their body size is currently the most plausible.Keywords
This publication has 43 references indexed in Scilit:
- Determining variation in the success of New Zealand land birdsGlobal Ecology and Biogeography, 2001
- Are islands more susceptible to be invaded than continents? Birds say noEcography, 2000
- Testing Character Correlation using Pairwise Comparisons on a PhylogenyJournal of Theoretical Biology, 2000
- Using Taxonomy to Predict Success among Introduced Avifauna: Relative Importance of Transport and EstablishmentConservation Biology, 1999
- Extinction Vulnerability and Selectivity: Combining Ecological and Paleontological ViewsAnnual Review of Ecology and Systematics, 1997
- Bird extinctions in the central PacificPhilosophical Transactions of the Royal Society B: Biological Sciences, 1994
- Prediction and biological invasionsTrends in Ecology & Evolution, 1993
- Bird community structureNature, 1991
- The intrinsic rates of increase of insects of different sizesEcological Entomology, 1988
- Phylogenies and the Comparative MethodThe American Naturalist, 1985