Density estimates of rural dog populations and an assessment of marking methods during a rabies vaccination campaign in the Philippines. Childs, J. E., Robinson, L. E., Sadek, R., Madden, A., Miranda, M. E., & Miranda, N. L. Preventive Veterinary Medicine, 33(1-4):207–218, Viral and Rickettsial Zoonoses Br., Centers for Dis. Contr. and Prev., 1600 Clifton Road MS/G13, Atlanta, GA 30333, United States, 1998.
abstract   bibtex   
We estimated the population density of dogs by distance sampling and assessed the potential utility of two marking methods for capture-mark-recapture applications following a mass canine rabies-vaccination campaign in Sorsogon Province, the Republic of the Philippines. Thirty villages selected to assess vaccine coverage and for dog surveys were visited 1 to 11 days after the vaccinating team. Measurements of the distance of dogs or groups of dogs from transect lines were obtained in 1088 instances (N = 1278 dogs; mean group size = 1.2). Various functions modelling the probability of detection were fitted to a truncated distribution of distances of dogs from transect lines. A hazard rate model provided the best fit and an overall estimate of dog-population density of 468/km2 (95% confidence interval, 359 to 611). At vaccination, most dogs were marked with either a paint stick or a black plastic collar. Overall, 34.8% of 2167 and 28.5% of 2115 dogs could be accurately identified as wearing a collar or showing a paint mark; 49.1% of the dogs had either mark. Increasing time interval between vaccination-team visit and dog survey and increasing distance from transect line were inversely associated with the probability of observing a paint mark. Probability of observing a collar was positively associated with increasing estimated density of the dog population in a given village and with animals not associated with a house. The data indicate that distance sampling is a relatively simple and adaptable method for estimating dog-population density and is not prone to problems associated with meeting some model assumptions inherent to mark-recapture estimators. © 1998 Elsevier Science B.V.
@ARTICLE{Childs1998,
  author = {Childs, J. E. and Robinson, L. E. and Sadek, R. and Madden, A. and
	Miranda, M. E. and Miranda, N. L.},
  title = {Density estimates of rural dog populations and an assessment of marking
	methods during a rabies vaccination campaign in the Philippines},
  journal = {Preventive Veterinary Medicine},
  year = {1998},
  volume = {33},
  pages = {207--218},
  number = {1-4},
  abstract = {We estimated the population density of dogs by distance sampling and
	assessed the potential utility of two marking methods for capture-mark-recapture
	applications following a mass canine rabies-vaccination campaign
	in Sorsogon Province, the Republic of the Philippines. Thirty villages
	selected to assess vaccine coverage and for dog surveys were visited
	1 to 11 days after the vaccinating team. Measurements of the distance
	of dogs or groups of dogs from transect lines were obtained in 1088
	instances (N = 1278 dogs; mean group size = 1.2). Various functions
	modelling the probability of detection were fitted to a truncated
	distribution of distances of dogs from transect lines. A hazard rate
	model provided the best fit and an overall estimate of dog-population
	density of 468/km2 (95% confidence interval, 359 to 611). At vaccination,
	most dogs were marked with either a paint stick or a black plastic
	collar. Overall, 34.8% of 2167 and 28.5% of 2115 dogs could be accurately
	identified as wearing a collar or showing a paint mark; 49.1% of
	the dogs had either mark. Increasing time interval between vaccination-team
	visit and dog survey and increasing distance from transect line were
	inversely associated with the probability of observing a paint mark.
	Probability of observing a collar was positively associated with
	increasing estimated density of the dog population in a given village
	and with animals not associated with a house. The data indicate that
	distance sampling is a relatively simple and adaptable method for
	estimating dog-population density and is not prone to problems associated
	with meeting some model assumptions inherent to mark-recapture estimators.
	© 1998 Elsevier Science B.V.},
  address = {Viral and Rickettsial Zoonoses Br., Centers for Dis. Contr. and Prev.,
	1600 Clifton Road MS/G13, Atlanta, GA 30333, United States},
  keywords = {Dog, Mark-recapture, Philippines, Population estimation, Rabies virus
	vaccination, Sampling},
  owner = {eric},
  subdatabase = {distance},
  timestamp = {2006.11.05}
}
Downloads: 0