CSIRO Publishing blank image blank image blank image blank imageBooksblank image blank image blank image blank imageJournalsblank image blank image blank image blank imageAbout Usblank image blank image blank image blank imageShopping Cartblank image blank image blank image You are here: Journals > Wildlife Research   
Wildlife Research
Journal Banner
  Ecology, management and conservation in natural and modified habitats
blank image Search
blank image blank image
blank image
  Advanced Search

Journal Home
About the Journal
Editorial Structure
Online Early
Current Issue
Just Accepted
All Issues
Special Issues
Sample Issue
For Authors
General Information
Submit Article
Author Instructions
Open Access
For Referees
Referee Guidelines
Review an Article
Annual Referee Index
For Subscribers
Subscription Prices
Customer Service
Print Publication Dates
Library Recommendation

blue arrow e-Alerts
blank image
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

red arrow Connect with us
blank image
facebook twitter logo LinkedIn

red arrow Submit Article
blank image
Use the online submission system to send us your paper.

red arrow CSIRO Wildlife Research
blank image
All volumes of CSIRO Wildlife Research are online and available to subscribers of Wildlife Research.


Article << Previous     |     Next >>   Contents Vol 36(1)

Comparisons through time and space suggest rapid evolution of dispersal behaviour in an invasive species

Ross A. Alford A, Gregory P. Brown B, Lin Schwarzkopf A, Benjamin L. Phillips B, Richard Shine B C

A School of Marine and Tropical Biology, James Cook University, Townsville, Qld 4811, Australia.
B School of Biological Sciences A08, University of Sydney, NSW 2006, Australia.
C Corresponding author. Email: rics@bio.usyd.edu.au
PDF (249 KB) $25
 Export Citation


During a biological invasion, we expect that the expanding front will increasingly become dominated by individuals with better dispersal abilities. Over many generations, selection at the invasion front thus will favour traits that increase dispersal rates. As a result of this process, cane toads (Bufo marinus) are now spreading through tropical Australia about 5-fold faster than in the early years of toad invasion; but how have toads changed to make this happen? Here we present data from radio-tracking of free-ranging cane toads from three populations (spanning a 15-year period of the toads’ Australian invasion, and across 1800 km). Our data reveal dramatic shifts in behavioural traits (proportion of nights when toads move from their existing retreat-site to a new one, and distance between those successive retreat-sites) associated with the rapid acceleration of toad invasion. Over a maximum period of 70 years (~50 generations), cane toads at the invasion front in Australia apparently have evolved such that populations include a higher proportion of individuals that make long, straight moves.

Subscriber Login

Legal & Privacy | Contact Us | Help


© CSIRO 1996-2016