This paper proposes a novel application for estimating the size and evolution of web page populations, based on the capture-recapture experiments, which are predominantly used in wildlife biological studies. The necessary modifications for the web paradigm are explained, while the limitations confronted are discussed. The paper provides the implementation details of the proposed web capture rec...

Jolly (1982, Biometrics 38, 301-321) presented modifications of the Jolly-Seber model for capture-recapture data, which assume constant survival and/or capture rates. Where appropriate, because of the reduced number of parameters, these models lead to more efficient estimators than the Jolly-Seber model. The tests to compare models given by Jolly do not make complete use of the data, and we pre...

We used reverse time capture-mark-recapture models to describe associations between rate of population change (k) and climate for northern spotted owls (Strix occidentalis caurina) at six long-term study areas in Washington and Oregon, USA. Populations in three of six areas showed strong evidence of declining populations, while populations in two additional areas were likely declining as well. ...

Integral representations for generalised Mathieu series are obtained which recapture the Mathieu series as a special case. Bounds are obtained through the use of the integral representations.

During a peak summer for stoats in 1979/80 (density indices in two study areas 8.2 and 10.7 new captures per 100 trapnights) a total of 134 stoats were caught, marked and released (86% young of the year, 58% males). Fifty-seven of 110 stoats were recaptured at least once, of which 42 moved 0.4 1.6 km between first and second captures. Frequency distributions of numbers of captures and first rec...

Using capture-recapture analysis we estimate the effective size of the active Amazon Mechanical Turk (MTurk) population that a typical laboratory can access to be about 7,300 workers. We also estimate that the time taken for half of the workers to leave the MTurk pool and be replaced is about 7 months. Each laboratory has its own population pool which overlaps, often extensively, with the hundr...

Coenagrion hylas (Trybom, 1899) has a very limited distribution in Europe, lives small, isolated populations, rather specialised habitat demands, and is regarded as the rarest damselfly of Europe. Using combination capture-mark-recapture population genetics, we aimed to evaluate state populations Tyrolean Lech valley test whether exuviae from this species are usable DNA source. was extracted mi...

The identification and characterization of reproductively isolated subpopulations or 'stocks' are essential for effective conservation and management decisions. This can be difficult in vagile marine species like marine mammals. We used paternity assignment and 'gametic recapture' to examine the reproductive autonomy of southern right whales (Eubalaena australis) on their New Zealand (NZ) calvi...