Home range plus: a space-time characterization of movement over real landscapes

Movement Ecology

Wayne M Getz³  Wendy C Turner¹  Andrew J Lyons² 

[1] Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, P.O. Box 1066, Blindern, Oslo, 0361, Norway;Department of Environmental Science Policy & Management, University of California at Berkeley, 130 Mulford Hall, CA 94720-3114, USA;School of Mathematical Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, 4000, South Africa

关键词: Utilization distribution;    T-LoCoH;    Time use;    Springbok;    Revisitation;    Movement phase;    Movement ecology;    LoCoH;    GPS;   

Others  :  803089
DOI  :  10.1186/2051-3933-1-2

 received in 2012-11-17, accepted in 2013-02-11,  发布年份 2013

【 摘 要 】

Background

Advances in GPS technology have created both opportunities in ecology as well as a need for analytical tools that can deal with the growing volume of data and ancillary variables associated with each location.

Results

We present T-LoCoH, a home range construction algorithm that incorporates time into the construction and aggregation of local kernels. Time is integrated with Euclidean space using an adaptive scaling of the individual's characteristic velocity, enabling the construction of utilization distributions that capture temporal partitions of space as well as contours that differentiate internal space based on movement phase and time-use metrics. We test T-LoCoH against a simulated dataset and provide illustrative examples from a GPS dataset from springbok in Namibia.

Conclusions

The incorporation of time into home range construction expands the concept of utilization distributions beyond the traditional density gradient to spatial models of movement and time, opening the door to new applications in movement ecology.

【 授权许可】

   
2013 Lyons et al.; licensee BioMed Central Ltd.

【 图 表 】

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