Results 11 to 20 of about 102 (67)

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

Evolutionary 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, Paul B. Conn, Mark V. Bravington, Andrzej Kilian, Aimée R. Lang, Anna Bryan, Raphaela Stimmelmayr, Lori Quakenbush   +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]

Ecology 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, Len Thomas, Danielle Harris, Darcy Bradley, Yannis P. Papastamatiou   +4 more
doaj   +2 more sources

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

Methods 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, Robert C. Lonsinger, Lisette P. Waits, Dana J. Morin   +3 more
doaj   +2 more sources

Estimating effective population size using close‐kin mark–recapture

Methods in Ecology and Evolution
Close‐kin mark–recapture (CKMR) is a method that allows estimating population census size, among other parameters, through the observed number of pairs that are close‐kin including parent–offspring pairs (POPs) and half‐sibling pairs (HSPs).
Jonathan Babyn, Daniel Ruzzante, Mark Bravington, Joanna Mills Flemming   +3 more
doaj   +2 more sources

Simulation-Based Spatially Explicit Close-Kin Mark-Recapture. [PDF]

Mol Ecol Resour
ABSTRACT Estimating the size of wild populations is a critical priority for ecologists and conservation biologists, but tools to do so are often labour intensive and expensive. A promising set of newer approaches are based on genetic data, which can be cheaper to obtain and less invasive than information from more direct observation.
Patterson G, Goodfellow CK, Ting N, Kern AD, Ralph PL.   +4 more
europepmc   +2 more sources

Collapsible Kernel Machine Regression for Exposomic Analyses. [PDF]

Stat Med
ABSTRACT An important goal of environmental epidemiology is to quantify the complex health effects posed by a wide array of environmental exposures. In studies of a small number of exposures, flexible models like Bayesian kernel machine regression (BKMR) are appealing because they allow for non‐linear and non‐additive associations among exposures ...
McGee G, Coull BA, Wilson A.
europepmc   +2 more sources

The Genomics Revolution in Nonmodel Species: Predictions vs. Reality for Salmonids. [PDF]

Mol Ecol
ABSTRACT The increasing feasibility of whole‐genome sequencing has been highly anticipated, promising to transform our understanding of the biology of nonmodel species. Notably, dramatic cost reductions beginning around 2007 with the advent of high‐throughput sequencing inspired publications heralding the ‘genomics revolution’, with predictions about ...
May SA, Rosenbaum SW, Pearse DE, Kardos M, Primmer CR, Baetscher DS, Waples RS.   +6 more
europepmc   +2 more sources

Temporal Variability in Effective Size ( N ̂ e ) Identifies Potential Sources of Discrepancies Between Mark Recapture and Close Kin Mark Recapture Estimates of Population Abundance. [PDF]

Mol Ecol Resour
ABSTRACT Although efforts to estimate effective population size, census size and their ratio in wild populations are expanding, few empirical studies investigate interannual changes in these parameters. Hence, we do not know how repeatable or representative many estimates may be. Answering this question requires studies of long‐term population dynamics.
Ruzzante DE, McCracken GR, Fraser DJ, MacMillan J, Buhariwalla C, Flemming JM.   +5 more
europepmc   +2 more sources

Must Epidemiologically Impactful Vector Control Interventions Disrupt Mosquito Population Structure? A Case Study of a Cluster-Randomised Controlled Trial. [PDF]

Evol Appl
ABSTRACT Large epidemiological impacts resulting from disease vector control interventions are typically associated with significant disruption of vector populations. While vector density is a frequently measured response, impacts on demography and connectivity are suspected but rarely quantified.
Dennis TPW, Guelbeogo WM, Ferguson HM, Lindsay S, N'Fale S, Pignatelli P, Ranson H, Sanou A, Tiono A, Weetman D, Viana M.   +10 more
europepmc   +3 more sources

Validation of close‐kin mark–recapture (CKMR) methods for estimating population abundance [PDF]

Methods in Ecology and Evolution, 2019
Abstract Knowing how many individuals there are in a population is a fundamental problem in the management and conservation of freshwater and marine fish. We compare abundance estimates (census size, Nc) in seven brook trout Salvelinus fontinalis populations using standard mark–recapture (MR) and the close‐kin mark–recapture (CKMR) method.
Daniel E. Ruzzante, Gregory R. McCracken, Brage Førland, John MacMillan, Daniela Notte, Colin Buhariwalla, Joanna Mills Flemming, Hans Skaug   +7 more
openaire   +3 more sources