Results 11 to 20 of about 22,275 (123)

Estimating Demographic Parameters for Bearded Seals, Erignathus barbatus, in Alaska Using Close‐Kin Mark‐Recapture Methods [PDF]

open access: yesEvolutionary Applications
Reliable estimates of population abundance and demographics are essential for managing harvested species. Ice‐associated phocids, “ice seals,” are a vital resource for subsistence‐dependent coastal Native communities in western and northern Alaska, USA ...
Brian D. Taras   +7 more
doaj   +3 more sources

Age is not just a number: How incorrect ageing impacts close‐kin mark‐recapture estimates of population size [PDF]

open access: yesEcology and Evolution
Population size is a key parameter for the conservation of animal species. Close‐kin mark‐recapture (CKMR) relies on the observed frequency and type of kinship among individuals sampled from the population to estimate population size.
Felix T. Petersma   +4 more
doaj   +3 more sources

Reproductive Success Dynamics Could Limit Precision in Close-Kin Mark–Recapture Abundance Estimation for Atlantic Goliath Grouper (Epinephelus itajara)

open access: yesFishes, 2023
Extra-Poisson variance in annual reproductive success can affect the precision of abundance estimates made using ‘close-kin’ mark–recapture procedures. However, empirical evaluation of that variance in natural marine populations can be daunting.
Michael D. Tringali
doaj   +2 more sources

A review of an emerging tool to estimate population parameters: the close-kin mark-recapture method [PDF]

open access: yesFrontiers in Marine Science, 2023
Knowing the number of individuals in a population is fundamental for the sustainable management of exploited marine resources but estimating this parameter is often extremely challenging, especially in large, highly mobile and dispersed populations ...
Laura Casas, Fran Saborido-Rey
doaj   +2 more sources

Assessing the suitability of a one‐time sampling event for close‐kin mark‐recapture: A caribou case study [PDF]

open access: yesEcology and Evolution
Abundance estimation is frequently an objective of conservation and monitoring initiatives for threatened and other managed populations. While abundance estimation via capture–mark–recapture or spatially explicit capture–recapture is now common, such ...
Brandon D. Merriell   +2 more
doaj   +2 more sources

A simulation-based evaluation of methods for estimating census population size of terrestrial game species from genetically-identified parent-offspring pairs [PDF]

open access: yesPeerJ, 2023
Estimates of wildlife population size are critical for conservation and management, but accurate estimates are difficult to obtain for many species. Several methods have recently been developed that estimate abundance using kinship relationships observed
Jeremy Larroque, Niko Balkenhol
doaj   +3 more sources

Spatial close‐kin mark‐recapture models applied to terrestrial species with continuous natal dispersal

open access: yesMethods in Ecology and Evolution
Close‐kin mark–recapture (CKMR) methods use information on genetic relatedness among individuals to estimate demographic parameters. An individual's genotype can be considered a ‘recapture’ of each of its parent's genotype, and the frequency of kin‐pair ...
Anthony Sévêque   +3 more
doaj   +2 more sources

Reliability of trans‐generational genetic mark–recapture (tGMR) for enumerating Pacific salmon [PDF]

open access: yesEvolutionary Applications
As Pacific salmon (Oncorhynchus spp.) decline across much of their range, it is imperative to further develop minimally invasive tools to quantify population abundance.
Samuel W. Rosenbaum   +6 more
doaj   +2 more sources

Estimation of Parental Abundance Using Hierarchical Bayesian Modeling With Data Augmentation [PDF]

open access: yesEcology and Evolution
Pedigree‐based estimation methods leverage the fact that each offspring in a cohort is genotypically “marked” by its parents and represent a recent and promising toolset for estimating population dynamics.
Benjamin Marcy‐Quay, Nicholas M. Sard
doaj   +2 more sources

Feasibility of a Close-Kin Mark-Recapture for Stock Assessment of Indian Ocean Swordfish (Xiphias gladius)

open access: yesFishes
The Indian Ocean Tuna Commission (IOTC) manages swordfish, Xiphias gladius, a species of high economic importance in the Indian Ocean. Current stock assessments rely on catch per unit effort indices, which can be biased, complicating reliable abundance ...
Thomas Chevrier   +5 more
doaj   +2 more sources

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