Estimating population size with noninvasive capture-mark-recapture data.

Estimating Population Size of Elusive Animals with DNA from Hunter-Collected Feces: Four Methods for Brown Bears

Noninvasive genetic methods can be used to estimate animal abundances and offer several advantages over conventional methods. Few attempts have been made, however, to evaluate the accuracy and precision of the estimates. We compared four methods of estimating population size based on fecal sampling. Two methods used rarefaction indices and two were based on capture-mark-recapture (CMR) estimato...

A comparison of linear transect and capture recapture methods results in Iranian Jerboa population density and abundance estimation in Mirabad plains, Shahreza

During a period from spring 2008 till fall 2010, Iranian Jerboa population abundance was estimated using distance (linear transect) and capture-recapture methods in the Mirabad plains near Shahreza city in Isfahan Province. In the study period, during the active time of the species except reproduction time, we tried to live-trap, mark, release and recapture individuals based on Schnabel method ...

Estimating Population Size From DNA-Based Closed Capture-Recapture Data Incorporating Genotyping Error

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

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...

Applications of Capture-Recapture Methods ARCH06V40N1_I

Applications of capture-recapture procedures go back to at least 1896, to the work of Petersen [1896], who was interested in the size of fish populations. Another early paper by Lincoln [1930] was concerned with waterfowl. The method gets its name from such applications concerned with estimating the number of fish in a pond, or more generally, estimating the population size of various species i...