Point transect sampling with traps or lures. Buckland, S. T., Summers, R. W., Borchers, D. L., & Thomas, L. Journal of Applied Ecology, 43(2):377–384, CREEM, The Observatory, Buchanan Gardens, St Andrews, Fife KY16 9LZ, United Kingdom, 2006. abstract bibtex 1. The ability to monitor abundance of animal populations is becoming increasingly important, in light of growing concerns over the loss of biodiversity through anthropogenic changes. A widely used tool for such monitoring is distance sampling, in which distances of detected animals from a line or point are modelled, to estimate detectability and hence abundance. Nevertheless, many species still prove problematic to survey. We have developed two extensions to point transect sampling that potentially allow abundance to be estimated for a number of species from diverse taxa for which good survey methods have not previously been available. 2. For each method, the primary survey comprises a random sample of points, or more usually a systematic grid of points, through the region of interest. Animals are lured to a point, or trapped at a point, and the number of animals observed at each point is recorded. A separate study is conducted on a subset of animals, to record whether they respond to the lure or enter the trap, for a range of known distances from the point. These data are used to estimate the probability that an animal will respond to the lure or enter the trap, as a function of its initial distance from the point. This allows the counts to be converted to an estimate of abundance in the survey region. 3. We illustrated the methods using a lure survey of crossbills Loxia spp. in coniferous woodland in Scotland. 4. Synthesis and applications. Two extensions of point transect sampling that use the same statistical methodology, lure point transects and trapping point transects, have been developed. Lure point transects extend the applicability of distance sampling to species that can be lured to a point, while trapping point transects potentially allow abundance estimation of species that can be trapped, with fewer resources needed than trapping webs and conventional mark-recapture methods. © 2006 British Ecological Society.
@ARTICLE{Buckland2006b,
author = {Buckland, S. T. and Summers, R. W. and Borchers, D. L. and Thomas,
L.},
title = {Point transect sampling with traps or lures},
journal = {Journal of Applied Ecology},
year = {2006},
volume = {43},
pages = {377--384},
number = {2},
abstract = {1. The ability to monitor abundance of animal populations is becoming
increasingly important, in light of growing concerns over the loss
of biodiversity through anthropogenic changes. A widely used tool
for such monitoring is distance sampling, in which distances of detected
animals from a line or point are modelled, to estimate detectability
and hence abundance. Nevertheless, many species still prove problematic
to survey. We have developed two extensions to point transect sampling
that potentially allow abundance to be estimated for a number of
species from diverse taxa for which good survey methods have not
previously been available. 2. For each method, the primary survey
comprises a random sample of points, or more usually a systematic
grid of points, through the region of interest. Animals are lured
to a point, or trapped at a point, and the number of animals observed
at each point is recorded. A separate study is conducted on a subset
of animals, to record whether they respond to the lure or enter the
trap, for a range of known distances from the point. These data are
used to estimate the probability that an animal will respond to the
lure or enter the trap, as a function of its initial distance from
the point. This allows the counts to be converted to an estimate
of abundance in the survey region. 3. We illustrated the methods
using a lure survey of crossbills Loxia spp. in coniferous woodland
in Scotland. 4. Synthesis and applications. Two extensions of point
transect sampling that use the same statistical methodology, lure
point transects and trapping point transects, have been developed.
Lure point transects extend the applicability of distance sampling
to species that can be lured to a point, while trapping point transects
potentially allow abundance estimation of species that can be trapped,
with fewer resources needed than trapping webs and conventional mark-recapture
methods. © 2006 British Ecological Society.},
address = {CREEM, The Observatory, Buchanan Gardens, St Andrews, Fife KY16 9LZ,
United Kingdom},
comment = {http://www.creem.st-and.ac.uk/stb/lures.pdf},
file = {Bucklandetal2006.pdf:Bucklandetal2006.pdf:PDF},
keywords = {Distance sampling, Logistic regression, Loxia scotica, Lure point
transects, Point transect sampling, Trapping point transects, Trapping
webs},
owner = {Tiago},
subdatabase = {distance},
timestamp = {2006.11.23}
}
Downloads: 0
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