mark and recapture

Mark and recapture is a method commonly used in ecology to estimate an animal population's size.

Mark and recapture techniques make demographic studies possible.

The same reasoning applies to mark and recapture.

Usually a researcher attempts to estimate current abundance, N, often using some form of mark and recapture technique.

The success of released individuals in contributing to wild populations can be measured by the mark and recapture method.

The life expectancy and demography of wild animals are often estimated by capturing, marking and recapturing them.

Mark and recapture studies are commonly used to estimate movement, migration, growth rate, natural mortality, and discard mortality.

This is the biggest toad population ever recorded but careful studies elsewhere, using similar mark and recapture techniques, will probably reveal others as large or even larger.

Periodic, random electroshocking and seining would be ideal for conducting mark and recapture surveys in low order streams.

Clipping of specific scales, such as the subcaudals, to mark individual snakes is a popular approach to population estimation by mark and recapture techniques.

Marking and recapturing animals is more useful when keeping a close eye on individual movement (Mech & Hallet 2001).

Isotope dilution can be effectively explained using mark and recapture method from biology - a method commonly used in ecology to estimate the population size of fish.

Zoologists need special methods to study cryptic animals including biotelemetry techniques such as radio tracking, mark and recapture, and enclosures or exclosures.

In one study, the bill length, tarsus length, and mass of native Hawaiian passerine birds were measured during 1987-2006 using the technique of mark and recapture.

During the summer of 1982, Aloi and Ringler conducted a mark and recapture study in the patch of watercress where the snails appeared most densely.

More measures like water and sediment sampling as well as mark and recapture techniques should be put into place to compile data on E.oblongus population levels and health.

Sutton, P.E. (1996), A mark and recapture study of the Florida sand skink Neoseps reynoldsi and a comparison of sand skink sampling methods.

In principle, a variety of macroeconomics data can be estimated by applying the formulas used in mark and recapture to data from currency bill tracking projects such as EuroBillTracker and Where's George?

Seining and mark and recapture estimates are advised in areas where this is feasible; in deeper areas where boat access is accomplishable electroshocking would be a good way to gather data on population numbers.

He didn't report growth rates based on these age determinations, and mark and recapture data, but he reported that the growth bands revealed 12+ year-old starfish: much older than those that became 'senile' and died in the laboratory.

In Missouri however, where shadow bass has a demand in the game fish market, biologists are conducing population studies and conducting estimates using mark and recapture methods and information for anglers to provide data to determine what if any angling restrictions need to apply to shadow bass fishing.

The Eurasian population is broken up into the eastern Greenland, Barents Sea, Kara Sea, Laptev Sea, and Chukchi Sea subpopulations, though there is considerable uncertainty about the structure of these populations due to limited mark and recapture data.

Estimates of B might be obtained via a ratio of immatures to adults soon after the breeding season, R. Number of deaths can be obtained by estimating annual survival probability, usually via mark and recapture methods, then multipling present abundance and survival rate.