منابع مشابه
Mark-recapture estimates of stickleback population sizes
Previous knowledge of population sizes of fish in these lakes comes from a mark-recapture study carried out in Paxton Lake in May, 2005 (M. Nomura and D. Schluter, unpublished). The results of this effort are shown in Table S1 of the Supplement. These estimates are now stale, being more than 10 years out of date. The estimates were based on relatively small samples, leading to highly uncertain ...
متن کاملMultiple data sources improve DNA-based mark-recapture population estimates of grizzly bears.
A fundamental challenge to estimating population size with mark-recapture methods is heterogeneous capture probabilities and subsequent bias of population estimates. Confronting this problem usually requires substantial sampling effort that can be difficult to achieve for some species, such as carnivores. We developed a methodology that uses two data sources to deal with heterogeneity and appli...
متن کاملSmoothing population size estimates for time-stratified mark-recapture experiments using Bayesian P-splines.
Petersen-type mark-recapture experiments are often used to estimate the number of fish or other animals in a population moving along a set migration route. A first sample of individuals is captured at one location, marked, and returned to the population. A second sample is then captured farther along the route, and inferences are derived from the numbers of marked and unmarked fish found in thi...
متن کاملMark-recapture estimates of recruitment, survivorship and population growth rate for the screwworm fly, Cochliomyia hominivorax.
Pradel model mark-release-recapture estimates of survivorship, phi, recruitment, f, and the rate of density-independent population growth, lambda, are presented for eight mark-recapture studies of the screwworm Cochliomyia hominivorax (Coquerel) (Diptera: Calliphoridae) from Costa Rica, totalling 19 573 released and 4476 recaptured flies. Corroborative estimates of survivorship and the rate of ...
متن کاملAssessing Small Mammal Abundance with Track-tube Indices and Mark–recapture Population Estimates
We compared track-tube sampling with mark–recapture livetrapping and evaluated a track-tube index, defined as the number of track tubes with identifiable small mammal tracks during a 4-night period, as a predictor of small mammal abundance estimates in North Dakota grasslands. Meadow voles (Microtus pennsylvanicus) were the most commonly recorded species by both methods, but were underrepresent...
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ژورنال
عنوان ژورنال: Conference on Applied Statistics in Agriculture
سال: 1994
ISSN: 2475-7772
DOI: 10.4148/2475-7772.1355