Optimising camera trap deployment design across multiple sites for species inventory surveys

Smith, J., Legge, S., James, A. and Tuft, K. (2017) Optimising camera trap deployment design across multiple sites for species inventory surveys. Pacific Conservation Biology, 23 1: 43-51. doi:10.1071/PC16017


Author Smith, J.
Legge, S.
James, A.
Tuft, K.
Title Optimising camera trap deployment design across multiple sites for species inventory surveys
Journal name Pacific Conservation Biology   Check publisher's open access policy
ISSN 1038-2097
Publication date 2017-03-01
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1071/PC16017
Open Access Status Not yet assessed
Volume 23
Issue 1
Start page 43
End page 51
Total pages 9
Place of publication Clayton, VIC, Australia
Publisher C S I R O Publishing
Collection year 2018
Language eng
Abstract Camera traps are being increasingly used in biological surveys. One of the most common uses of camera trap data is the generation of species inventories and estimations of species richness. Many authors have advocated for increased camera trap-nights (long deployment times or more cameras in an array) to detect rare or wide-ranging species. However, in practice, the number of traps and the duration of surveys are constrained; a survey leader must make decisions about allocating the available cameras to sites. Here we investigate the effect of deployment time, camera array size and number of sites on detection of saxicoline mammal and varanid species obtained from surveys of discrete vegetation pockets in tropical Australia. This paper provides an analysis method for optimising decisions about how a limited number of cameras should be deployed across sites. We found that increasing the number of sites leads to larger species richness estimates in a shorter period. Increasing the number of cameras per site also leads to higher species richness estimates in a shorter time, but not to the same extent as increasing the number of sites. With fewer sites used or smaller arrays deployed at each site, a longer deployment duration is required, especially for rarer or wider-ranging species, or those not attracted to bait. Finally, we compared estimates of species richness generated by our camera trapping to those generated by live trapping at a subset of our sites, and found camera traps generated much larger estimates.
Keyword Bootstrap
Camera traps
Inventory
Species accumulation curves
Species richness estimators
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: HERDC Pre-Audit
School of Biological Sciences Publications
 
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