Predator odour does not influence trappability of southern brown bandicoots (Isoodon obesulus) and common brushtail possums (Trichosurus vulpecula)

Predators cause changes in the behaviour of many prey species. This study investigated whether trappability of wild southern brown bandicoots (Isoodon obesulus) and common brushtail possums (Trichosurus vulpecula) was influenced by odour cues suggesting the presence of potential predators. Trapping...

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Main Authors: Mella, V., Cooper, Christine, Davies, Stephen
Format: Journal Article
Published: CSIRO Publishing 2010
Online Access:http://hdl.handle.net/20.500.11937/17537
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author Mella, V.
Cooper, Christine
Davies, Stephen
author_facet Mella, V.
Cooper, Christine
Davies, Stephen
author_sort Mella, V.
building Curtin Institutional Repository
collection Online Access
description Predators cause changes in the behaviour of many prey species. This study investigated whether trappability of wild southern brown bandicoots (Isoodon obesulus) and common brushtail possums (Trichosurus vulpecula) was influenced by odour cues suggesting the presence of potential predators. Trapping success was compared between traps with predator scents and controls in two different experiments. The first measured trapping success of single clean traps, traps with unfamiliar herbivore (horse) odour and traps scented with predator (fox, cat, quoll and dingo) odours, while the second offered three choices (fox, dingo and clean traps) simultaneously. Frequency of capture of bandicoots and possums was not influenced by odour, mass or sex in either experiment. The lack of avoidance response observed in this study suggests that neither southern brown bandicoots nor common brushtail possums alter foraging behaviour in response to olfactory cues that suggest the presence of exotic or Australian predators. This is consistent with previous studies, which indicate that native Australian marsupials do not avoid predator odours.
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spelling curtin-20.500.11937-175372017-09-13T15:44:54Z Predator odour does not influence trappability of southern brown bandicoots (Isoodon obesulus) and common brushtail possums (Trichosurus vulpecula) Mella, V. Cooper, Christine Davies, Stephen Predators cause changes in the behaviour of many prey species. This study investigated whether trappability of wild southern brown bandicoots (Isoodon obesulus) and common brushtail possums (Trichosurus vulpecula) was influenced by odour cues suggesting the presence of potential predators. Trapping success was compared between traps with predator scents and controls in two different experiments. The first measured trapping success of single clean traps, traps with unfamiliar herbivore (horse) odour and traps scented with predator (fox, cat, quoll and dingo) odours, while the second offered three choices (fox, dingo and clean traps) simultaneously. Frequency of capture of bandicoots and possums was not influenced by odour, mass or sex in either experiment. The lack of avoidance response observed in this study suggests that neither southern brown bandicoots nor common brushtail possums alter foraging behaviour in response to olfactory cues that suggest the presence of exotic or Australian predators. This is consistent with previous studies, which indicate that native Australian marsupials do not avoid predator odours. 2010 Journal Article http://hdl.handle.net/20.500.11937/17537 10.1071/ZO10049 CSIRO Publishing restricted
spellingShingle Mella, V.
Cooper, Christine
Davies, Stephen
Predator odour does not influence trappability of southern brown bandicoots (Isoodon obesulus) and common brushtail possums (Trichosurus vulpecula)
title Predator odour does not influence trappability of southern brown bandicoots (Isoodon obesulus) and common brushtail possums (Trichosurus vulpecula)
title_full Predator odour does not influence trappability of southern brown bandicoots (Isoodon obesulus) and common brushtail possums (Trichosurus vulpecula)
title_fullStr Predator odour does not influence trappability of southern brown bandicoots (Isoodon obesulus) and common brushtail possums (Trichosurus vulpecula)
title_full_unstemmed Predator odour does not influence trappability of southern brown bandicoots (Isoodon obesulus) and common brushtail possums (Trichosurus vulpecula)
title_short Predator odour does not influence trappability of southern brown bandicoots (Isoodon obesulus) and common brushtail possums (Trichosurus vulpecula)
title_sort predator odour does not influence trappability of southern brown bandicoots (isoodon obesulus) and common brushtail possums (trichosurus vulpecula)
url http://hdl.handle.net/20.500.11937/17537