Peak hour in the bush: Linear anthropogenic clearings funnel predator and prey species

© 2017 Ecological Society of Australia. Linear clearings, such as roads and tracks, are an obvious anthropogenic feature in many remote environments, even where infrastructure is sparse. Predator species have been shown to prefer moving down linear clearings, and therefore, clearings could increase...

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Main Authors: Dawson, S., Adams, P., Moseby, K., Waddington, K., Kobryn, H., Bateman, Bill, Fleming, P.
Format: Journal Article
Published: Blackwell Publishing Asia 2017
Online Access:http://hdl.handle.net/20.500.11937/58707
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author Dawson, S.
Adams, P.
Moseby, K.
Waddington, K.
Kobryn, H.
Bateman, Bill
Fleming, P.
author_facet Dawson, S.
Adams, P.
Moseby, K.
Waddington, K.
Kobryn, H.
Bateman, Bill
Fleming, P.
author_sort Dawson, S.
building Curtin Institutional Repository
collection Online Access
description © 2017 Ecological Society of Australia. Linear clearings, such as roads and tracks, are an obvious anthropogenic feature in many remote environments, even where infrastructure is sparse. Predator species have been shown to prefer moving down linear clearings, and therefore, clearings could increase predation risk for other species. We investigated whether tracks cleared for seismic surveys are preferentially used by predators and herbivores in a landscape inhabited by bilbies (Macrotis lagotis), a vulnerable species of conservation concern. We used a paired camera trap array to investigate the use of cleared seismic lines at four time points after clearing (1 month, 3 months, 7 months, 48 months) by six mammal species. Bilbies, cattle (Bos indicus/B. taurus), dingoes (Canis familiaris), feral cats (Felis catus) and agile wallabies (Macropus agilis) preferred to use seismic lines compared with adjacent undisturbed vegetation for almost all surveys, while spectacled hare wallabies (Lagorchestes conspicillatus) avoided them. Bilbies and agile wallabies showed similar temporal activity patterns on and off seismic lines but feral cats, dingoes and cattle used seismic lines at different times of day to control areas. We also investigated microhabitat selection by spool tracking individual bilbies. Bilbies selected a route through vegetation that was more open than surrounding vegetation. While spatial and temporal funnelling of bilbies and their predators (especially cats) may increase the frequency of encounter between the two, it is important to note that bilbies were active at significantly different times to predators both on and off seismic lines. The identified selection for seismic lines, and changes in spatial and temporal overlap between species, can be used to develop effective management strategies, to minimize potential impacts on native species.
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spelling curtin-20.500.11937-587072017-11-28T06:36:40Z Peak hour in the bush: Linear anthropogenic clearings funnel predator and prey species Dawson, S. Adams, P. Moseby, K. Waddington, K. Kobryn, H. Bateman, Bill Fleming, P. © 2017 Ecological Society of Australia. Linear clearings, such as roads and tracks, are an obvious anthropogenic feature in many remote environments, even where infrastructure is sparse. Predator species have been shown to prefer moving down linear clearings, and therefore, clearings could increase predation risk for other species. We investigated whether tracks cleared for seismic surveys are preferentially used by predators and herbivores in a landscape inhabited by bilbies (Macrotis lagotis), a vulnerable species of conservation concern. We used a paired camera trap array to investigate the use of cleared seismic lines at four time points after clearing (1 month, 3 months, 7 months, 48 months) by six mammal species. Bilbies, cattle (Bos indicus/B. taurus), dingoes (Canis familiaris), feral cats (Felis catus) and agile wallabies (Macropus agilis) preferred to use seismic lines compared with adjacent undisturbed vegetation for almost all surveys, while spectacled hare wallabies (Lagorchestes conspicillatus) avoided them. Bilbies and agile wallabies showed similar temporal activity patterns on and off seismic lines but feral cats, dingoes and cattle used seismic lines at different times of day to control areas. We also investigated microhabitat selection by spool tracking individual bilbies. Bilbies selected a route through vegetation that was more open than surrounding vegetation. While spatial and temporal funnelling of bilbies and their predators (especially cats) may increase the frequency of encounter between the two, it is important to note that bilbies were active at significantly different times to predators both on and off seismic lines. The identified selection for seismic lines, and changes in spatial and temporal overlap between species, can be used to develop effective management strategies, to minimize potential impacts on native species. 2017 Journal Article http://hdl.handle.net/20.500.11937/58707 10.1111/aec.12553 Blackwell Publishing Asia restricted
spellingShingle Dawson, S.
Adams, P.
Moseby, K.
Waddington, K.
Kobryn, H.
Bateman, Bill
Fleming, P.
Peak hour in the bush: Linear anthropogenic clearings funnel predator and prey species
title Peak hour in the bush: Linear anthropogenic clearings funnel predator and prey species
title_full Peak hour in the bush: Linear anthropogenic clearings funnel predator and prey species
title_fullStr Peak hour in the bush: Linear anthropogenic clearings funnel predator and prey species
title_full_unstemmed Peak hour in the bush: Linear anthropogenic clearings funnel predator and prey species
title_short Peak hour in the bush: Linear anthropogenic clearings funnel predator and prey species
title_sort peak hour in the bush: linear anthropogenic clearings funnel predator and prey species
url http://hdl.handle.net/20.500.11937/58707