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Mark and recapture is a method commonly used in ecology to estimate an animal population's size where it is impractical to count every individual. [1] A portion of the population is captured, marked, and released.
Especially he was the first to use the Mark and recapture method which he used to estimate the size of a Plaice population. The Lincoln-Petersen method (also known as the Petersen-Lincoln index) is named after him and Frederick Charles Lincoln who first described the method in 1930. [1] [2] [3] [4]
In mark-and-recapture methodology, a sample is taken directly from the population, marked, and re-introduced into the population. At a later date, another sample is then taken from the population (re-capture), and the proportion of previously marked samples is used to estimate the actual population size.
At the individual level, genetic identification can enable estimation of population abundance and population increase rates within the framework of mark-recapture models. . The abundance of cryptic or elusive species that are difficult to monitor can be estimated by collecting non-invasive biological samples in the field (e.g. feathers, scat or fur) and using these to identify individuals ...
The Lincoln index is a statistical measure used in several fields to estimate the population size of an animal species. Described by Frederick Charles Lincoln in 1930, it is also sometimes known as the Lincoln-Petersen method after C.G. Johannes Petersen who was the first to use the related mark and recapture method.
Because they allow scientists to examine species up close, mist nets are often used in mark-recapture studies over extended periods of time to detect trends in population indices. [4] Some uses of data collected using mist net sampling are: Mark-recapture for population sampling; Humane capture and relocation of small birds or bats; Tagging and ...
Sam LaPorta's one-handed catch for a touchdown was a highlight of a high-scoring first half. (Photo by Nic Antaya/Getty Images) (Nic Antaya via Getty Images)
Being able to capture and mark a species in a noninvasive way allows for accurate readings of the population's size, both total and effective over several rounds of recapture. However, for species that are difficult to capture or view directly such as endangered species , it can be near impossible to use the mark-recapture method to obtain ...