Accommodating unmodeled heterogeneity in double-observer distance sampling surveys. Borchers, D. L., Laake, J. L., Southwell, C., & Paxton, C. G. M. Biometrics, 62:372–378, Australian Antarctic Division, Channel Highway, Kingston, Tasmania 7050, Australia, 2006.
abstract   bibtex   
Mark-recapture models applied to double-observer distance sampling data neglect the information on relative detectability of objects contained in the distribution of observed distances. A difference between the observed distribution and that predicted by the mark-recapture model is symptomatic of a failure of the assumption of zero correlation between detection probabilities implicit in the mark-recapture model. We develop a mark-recapture-based model that uses the observed distribution to relax this assumption to zero correlation at only one distance. We demonstrate its usefulness in coping with unmodeled heterogeneity using data from an aerial survey of crabeater seals in the Antarctic.
@ARTICLE{Borchers2006,
  author = {Borchers, D. L. and Laake, J. L. and Southwell, C. and Paxton, C.
	G. M.},
  title = {Accommodating unmodeled heterogeneity in double-observer distance
	sampling surveys},
  journal = {Biometrics},
  year = {2006},
  volume = {62},
  pages = {372--378},
  abstract = {Mark-recapture models applied to double-observer distance sampling
	data neglect the information on relative detectability of objects
	contained in the distribution of observed distances. A difference
	between the observed distribution and that predicted by the mark-recapture
	model is symptomatic of a failure of the assumption of zero correlation
	between detection probabilities implicit in the mark-recapture model.
	We develop a mark-recapture-based model that uses the observed distribution
	to relax this assumption to zero correlation at only one distance.
	We demonstrate its usefulness in coping with unmodeled heterogeneity
	using data from an aerial survey of crabeater seals in the Antarctic.},
  address = {Australian Antarctic Division, Channel Highway, Kingston, Tasmania
	7050, Australia},
  comment = {http://www.seaturtle.org/PDF/Borchers_2006_Biometrics.pdf},
  file = {Borchersetal2006.pdf:Borchersetal2006.pdf:PDF},
  keywords = {Distance sampling, Double observer, Heterogeneity, Mark-recapture,
	Point independence},
  owner = {eric},
  subdatabase = {distance},
  timestamp = {2006.11.05}
}

Downloads: 0