Comparison of noninvasive genetics and camera trapping for estimating population density of ocelots (Leopardus pardalis) on Barro Colorado Island, Panama

Torrey W. Rodgers, Jacalyn Giacalone, Edward J. Heske, Jan E. Janečka, Christopher A. Phillips, Robert L. Schooley

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Estimates of population density are essential for the effective conservation and management of any threatened species. Accurately estimating density of elusive carnivores can be a challenge, however. One approach to this challenge is integration of DNA collected noninvasively from feces with capture-recapture modeling. To date, the bias and precision of this technique have seldom been evaluated in the field. We compared density estimates of ocelots (Leopardus pardalis) derived from fecal noninvasive genetic techniques to density estimates from camera trapping in the same population, during the same study period. Density estimates from the two techniques were comparable, especially when using spatially explicit capture-recapture models. Population density estimated using the program DENSITY was 1.74/km 2 (SE = 0.584) from noninvasive genetics and 1.59/km 2 (SE = 0.464) from camera trapping. These estimates also represent the highest reported ocelot population density within the species range.

Original languageEnglish
Pages (from-to)690-705
Number of pages16
JournalTropical Conservation Science
Volume7
Issue number4
DOIs
StatePublished - 1 Dec 2014

Fingerprint

trapping
population density
carnivore
feces
DNA
comparison
modeling

Keywords

  • Elusive species conservation
  • Ocelot
  • Spatially-explicit capture-recapture

Cite this

Rodgers, Torrey W. ; Giacalone, Jacalyn ; Heske, Edward J. ; Janečka, Jan E. ; Phillips, Christopher A. ; Schooley, Robert L. / Comparison of noninvasive genetics and camera trapping for estimating population density of ocelots (Leopardus pardalis) on Barro Colorado Island, Panama. In: Tropical Conservation Science. 2014 ; Vol. 7, No. 4. pp. 690-705.
@article{92d00cc2390b41b1978a5aa5ef289285,
title = "Comparison of noninvasive genetics and camera trapping for estimating population density of ocelots (Leopardus pardalis) on Barro Colorado Island, Panama",
abstract = "Estimates of population density are essential for the effective conservation and management of any threatened species. Accurately estimating density of elusive carnivores can be a challenge, however. One approach to this challenge is integration of DNA collected noninvasively from feces with capture-recapture modeling. To date, the bias and precision of this technique have seldom been evaluated in the field. We compared density estimates of ocelots (Leopardus pardalis) derived from fecal noninvasive genetic techniques to density estimates from camera trapping in the same population, during the same study period. Density estimates from the two techniques were comparable, especially when using spatially explicit capture-recapture models. Population density estimated using the program DENSITY was 1.74/km 2 (SE = 0.584) from noninvasive genetics and 1.59/km 2 (SE = 0.464) from camera trapping. These estimates also represent the highest reported ocelot population density within the species range.",
keywords = "Elusive species conservation, Ocelot, Spatially-explicit capture-recapture",
author = "Rodgers, {Torrey W.} and Jacalyn Giacalone and Heske, {Edward J.} and Janečka, {Jan E.} and Phillips, {Christopher A.} and Schooley, {Robert L.}",
year = "2014",
month = "12",
day = "1",
doi = "10.1177/194008291400700408",
language = "English",
volume = "7",
pages = "690--705",
journal = "Tropical Conservation Science",
issn = "1940-0829",
publisher = "Mongabay.com",
number = "4",

}

Comparison of noninvasive genetics and camera trapping for estimating population density of ocelots (Leopardus pardalis) on Barro Colorado Island, Panama. / Rodgers, Torrey W.; Giacalone, Jacalyn; Heske, Edward J.; Janečka, Jan E.; Phillips, Christopher A.; Schooley, Robert L.

In: Tropical Conservation Science, Vol. 7, No. 4, 01.12.2014, p. 690-705.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Comparison of noninvasive genetics and camera trapping for estimating population density of ocelots (Leopardus pardalis) on Barro Colorado Island, Panama

AU - Rodgers, Torrey W.

AU - Giacalone, Jacalyn

AU - Heske, Edward J.

AU - Janečka, Jan E.

AU - Phillips, Christopher A.

AU - Schooley, Robert L.

PY - 2014/12/1

Y1 - 2014/12/1

N2 - Estimates of population density are essential for the effective conservation and management of any threatened species. Accurately estimating density of elusive carnivores can be a challenge, however. One approach to this challenge is integration of DNA collected noninvasively from feces with capture-recapture modeling. To date, the bias and precision of this technique have seldom been evaluated in the field. We compared density estimates of ocelots (Leopardus pardalis) derived from fecal noninvasive genetic techniques to density estimates from camera trapping in the same population, during the same study period. Density estimates from the two techniques were comparable, especially when using spatially explicit capture-recapture models. Population density estimated using the program DENSITY was 1.74/km 2 (SE = 0.584) from noninvasive genetics and 1.59/km 2 (SE = 0.464) from camera trapping. These estimates also represent the highest reported ocelot population density within the species range.

AB - Estimates of population density are essential for the effective conservation and management of any threatened species. Accurately estimating density of elusive carnivores can be a challenge, however. One approach to this challenge is integration of DNA collected noninvasively from feces with capture-recapture modeling. To date, the bias and precision of this technique have seldom been evaluated in the field. We compared density estimates of ocelots (Leopardus pardalis) derived from fecal noninvasive genetic techniques to density estimates from camera trapping in the same population, during the same study period. Density estimates from the two techniques were comparable, especially when using spatially explicit capture-recapture models. Population density estimated using the program DENSITY was 1.74/km 2 (SE = 0.584) from noninvasive genetics and 1.59/km 2 (SE = 0.464) from camera trapping. These estimates also represent the highest reported ocelot population density within the species range.

KW - Elusive species conservation

KW - Ocelot

KW - Spatially-explicit capture-recapture

UR - http://www.scopus.com/inward/record.url?scp=84924801514&partnerID=8YFLogxK

U2 - 10.1177/194008291400700408

DO - 10.1177/194008291400700408

M3 - Article

AN - SCOPUS:84924801514

VL - 7

SP - 690

EP - 705

JO - Tropical Conservation Science

JF - Tropical Conservation Science

SN - 1940-0829

IS - 4

ER -