The validity and precision of spotlighting for surveying desert mammal communities

Scott, D.M., Waite, S., Maddox, T.M., Freer, R.A. and Dunstone, N. (2005) The validity and precision of spotlighting for surveying desert mammal communities Journal of Arid Environments, 61 (4). pp. 589-601. ISSN 0140-1963

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Abstract

We investigated the validity of spotlighting techniques for surveying and monitoring desert mammal populations by determining the effect of repeating spotlight transects on the relative precision of density estimates. Precision was modelled by calculating cumulative mean density and associated coefficient of variation. The effect of moonlight at the time of surveying was also investigated. The results show that spotlighting is a valid technique for monitoring some species, however the number of transects required to obtain pre-defined adequate levels of precision is species-dependent. Reasons for these findings are discussed and recommendations for future spotlight surveys for monitoring desert mammal populations are given.

Item Type: Journal article
Uncontrolled Keywords: Density; Fox; Hare; Jerboa; Jordan; Precision; Spotlighting; Strip-transect
Subjects: F000 Physical Sciences > F800 Physical Geography and Environmental Sciences > F850 Environmental Sciences
DOI (a stable link to the resource): 10.1016/j.jaridenv.2004.09.008
Faculties: Faculty of Science and Engineering > School of Environment and Technology > Ecology, Landscape and Pollution Management
Faculty of Science and Engineering > School of Pharmacy and Biomolecular Sciences
Depositing User: editor environment
Date Deposited: 23 Nov 2006
Last Modified: 02 May 2012 09:02
URI: http://eprints.brighton.ac.uk/id/eprint/1018

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