Which new technique allows us to discover more previously unknown species? Captive breeding and release Radio collaring and satellite tagging Mark recapture and translocations Camera trapping and live capture Next generation sequencing and taxonomic revision
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- Captive breeding and release - Radio collaring and satellite tagging - Mark recapture and translocations - Camera trapping and live capture - Next generation sequencing and taxonomic revision Show more…
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Wildlife Wild animal populations are often estimated through the use of the capture - tag-recapture method. Several animals are captured, tagged, and released back into the wild. The animals continue to roam freely. Then, some time later at the same site, several more animals are captured, and the number of tagged animals is recorded. An estimate of the population can then be calculated. This method of estimation assumes that the fraction of tagged animals in the second sample is equivalent to the fraction of tagged animals in the entire population. $$ \frac{\text { tagged animals in second sample }}{\text { animals in second sample }}=\frac{\text { tagged animals in population }}{\text { population }(P)} $$ Use the formula above to predict the black bear population of the northern coastal plain of South Carolina. Researchers tagged fourteen black bears in the fall and captured eleven bears the following summer. Of the eleven bears, three were tagged.
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