Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1371/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
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ISSN | 1932-6203 |
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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