Arid
DOI10.1371/journal.pone.0063931
Anthropogenic Resource Subsidies Determine Space Use by Australian Arid Zone Dingoes: An Improved Resource Selection Modelling Approach
Newsome, Thomas M.1,2; Ballard, Guy-Anthony3; Dickman, Christopher R.1; Fleming, Peter J. S.4; Howden, Chris5
通讯作者Newsome, Thomas M.
来源期刊PLOS ONE
ISSN1932-6203
出版年2013
卷号8期号:5
英文摘要

Dingoes (Canis lupus dingo) were introduced to Australia and became feral at least 4,000 years ago. We hypothesized that dingoes, being of domestic origin, would be adaptable to anthropogenic resource subsidies and that their space use would be affected by the dispersion of those resources. We tested this by analyzing Resource Selection Functions (RSFs) developed from GPS fixes (locations) of dingoes in arid central Australia. Using Generalized Linear Mixed-effect Models (GLMMs), we investigated resource relationships for dingoes that had access to abundant food near mine facilities, and for those that did not. From these models, we predicted the probability of dingo occurrence in relation to anthropogenic resource subsidies and other habitat characteristics over similar to 18,000 km(2). Very small standard errors and subsequent pervasively high P-values of results will become more important as the size of data sets, such as our GPS tracking logs, increases. Therefore, we also investigated methods to minimize the effects of serial and spatio-temporal correlation among samples and unbalanced study designs. Using GLMMs, we accounted for some of the correlation structure of GPS animal tracking data; however, parameter standard errors remained very small and all predictors were highly significant. Consequently, we developed an alternative approach that allowed us to review effect sizes at different spatial scales and determine which predictors were sufficiently ecologically meaningful to include in final RSF models. We determined that the most important predictor for dingo occurrence around mine sites was distance to the refuse facility. Away from mine sites, close proximity to human-provided watering points was predictive of dingo dispersion as were other landscape factors including palaeochannels, rocky rises and elevated drainage depressions. Our models demonstrate that anthropogenically supplemented food and water can alter dingo-resource relationships. The spatial distribution of such resources is therefore critical for the conservation and management of dingoes and other top predators.


类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000321394700021
WOS关键词ESTIMATING EQUATIONS ; TANAMI DESERT ; WILD DOGS ; ECOLOGY ; FRAMEWORK ; HABITAT
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/179372
作者单位1.Univ Sydney, Sch Biol Sci, Inst Wildlife Res, Sydney, NSW 2006, Australia;
2.Univ Canberra, Invas Anim Cooperat Res Ctr, Canberra, ACT 2601, Australia;
3.Univ New England, Vertebrate Pest Res Unit, NSW Dept Primary Ind, Armidale, NSW, Australia;
4.NSW Dept Primary Ind, Vertebrate Pest Res Unit, Orange, NSW, Australia;
5.Tricky Solut, Sydney, NSW, Australia
推荐引用方式
GB/T 7714
Newsome, Thomas M.,Ballard, Guy-Anthony,Dickman, Christopher R.,et al. Anthropogenic Resource Subsidies Determine Space Use by Australian Arid Zone Dingoes: An Improved Resource Selection Modelling Approach[J],2013,8(5).
APA Newsome, Thomas M.,Ballard, Guy-Anthony,Dickman, Christopher R.,Fleming, Peter J. S.,&Howden, Chris.(2013).Anthropogenic Resource Subsidies Determine Space Use by Australian Arid Zone Dingoes: An Improved Resource Selection Modelling Approach.PLOS ONE,8(5).
MLA Newsome, Thomas M.,et al."Anthropogenic Resource Subsidies Determine Space Use by Australian Arid Zone Dingoes: An Improved Resource Selection Modelling Approach".PLOS ONE 8.5(2013).
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