Behav Ecol Sociobiol (2017) 71:134 DOI 10.1007/s00265-017-2367-4 ORIGINAL ARTICLE Evolutionary shifts in anti-predator responses of invasive cane toads (Rhinella marina) Cameron M. Hudson & Gregory P. Brown & Richard Shine Received: 23 February 2017 /Revised: 3 August 2017 /Accepted: 8 August 2017 Springer-Verlag GmbH Germany 2017 Abstract Significance statement A potential prey item’s response to encountering a predator The process of colonising novel environments exposes an depends on aspects of the predator (e.g., its locomotor capac- organism to a host of different predators that exert selection ity), the local environment (e.g., proximity to shelter) and the on morphology, behaviour and physiology. Over time, this physiological state of the prey item, but in addition, anti- can lead to the evolution of novel phenotypes that are adapted predator tactics also vary geographically among different pop- to local conditions. Anthropogenically facilitated biological ulations within wide-ranging species. Using standardised tri- invasions provide a unique opportunity to study how species als, we tested responses of cane toads (Rhinella marina)to respond to colonisation of new environments. Here, we stud- being placed on a laboratory runway and encouraged to flee. ied geographic variation in cane toad (Rhinella marina)anti- Overall, the toads least capable of rapid locomotion
Behavioral Ecology and Sociobiology – Springer Journals
Published: Aug 16, 2017
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