Invasion and the evolution of speed in toads
- B. Phillips, Gregory P. Brown, J. Webb, R. Shine
- Environmental ScienceNature
- 16 February 2006
The annual rate of progress of the toad invasion front has increased about fivefold since the toads first arrived and it is found that toads with longer legs can not only move faster and are the first to arrive in new areas, but also that those at the front have longer legs than toads in older populations.
Rapid expansion of the cane toad (Bufo marinus) invasion front in tropical Australia
- B. Phillips, Gregory P. Brown, M. Greenlees, J. Webb, R. Shine
- Environmental Science
- 1 April 2007
Surveys of the location of the toad invasion front in 2001 to 2005, and radiotracking of toads at the front near Darwin in 2005, reveal much faster westwards expansion than was recorded in earlier stages of toad invade through Queensland.
Body size, locomotor speed and antipredator behaviour in a tropical snake (Tropidonophis mairii, colubridae): The influence of incubation environments and genetic factors
- J. Webb, Gregory P. Brown, R. Shine
- Environmental Science, Biology
- 1 October 2001
Sex differences in phenotypic responses of hatchling snakes support a major assumption of the Charnov-Bull hypothesis for the evolution of temperature-dependent sex determination.
Life underground: food habits and reproductive biology of two amphisbaenian species from southern Africa
The substantial differences in trophic biology between these two taxa and other sympatric fossorial reptiles, suggest that adaptations to fossoriality do not constrain ecological diversity within burrowing squamates.
Toad on the road: use of roads as dispersal corridors by cane toads (Bufo marinus) at an invasion front in tropical Australia.
- Gregory P. Brown, B. Phillips, J. Webb, R. Shine
- Environmental Science
- 1 November 2006
THE ADAPTIVE SIGNIFICANCE OF REPTILIAN VIVIPARITY IN THE TROPICS: TESTING THE MATERNAL MANIPULATION HYPOTHESIS
- J. Webb, R. Shine, K. Christian
- Environmental Science, BiologyEvolution; international journal of organic…
- 2006
In a laboratory thermal gradient, pregnant death adders from tropical Australia maintained less variable body temperatures than did nonpregnant females, and reproducing female reptiles manipulate the thermal regimes experienced by their developing embryos in ways that enhance the fitness of their offspring.
The Physiological Cost of Pregnancy in a Tropical Viviparous Snake
- T. Schultz, J. Webb, K. Christian
- BiologyCopeia
- 10 September 2008
The results do not support the assumption that the metabolism of embryos (prior to birth and neonates is similar in this species, and the energetic cost of supporting the pregnancy is only a minor component of the total reproductive effort for females of this species.
Invasive cane toads (Bufo marinus) cause mass mortality of freshwater crocodiles (Crocodylus johnstoni) in tropical Australia
- Mike Letnic, J. Webb, R. Shine
- Environmental Science
- 1 July 2008
A native dasyurid predator (common planigale, Planigale maculata) rapidly learns to avoid a toxic invader.
- J. Webb, Gregory P. Brown, T. Child, M. Greenlees, B. Phillips, R. Shine
- Environmental Science
- 1 November 2008
The results suggest that generalist predators can learn to distinguish and avoid novel toxic prey very rapidly - and hence, that small dasyurid predators can rapidly adapt to the cane toad invasion.
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