Results 1 to 10 of about 2,030 (202)

Effective number of white shark (Carcharodon carcharias, Linnaeus) breeders is stable over four successive years in the population adjacent to eastern Australia and New Zealand [PDF]

open access: yesEcology and Evolution, 2021
Population size is a central parameter for conservation; however, monitoring abundance is often problematic for threatened marine species. Despite substantial investment in research, many marine species remain data‐poor presenting barriers to the ...
Danielle Davenport   +5 more
doaj   +8 more sources

Severe inbreeding and small effective number of breeders in a formerly abundant marine fish. [PDF]

open access: yesPLoS ONE, 2013
In contrast to freshwater fish it is presumed that marine fish are unlikely to spawn with close relatives due to the dilution effect of large breeding populations and their propensity for movement and reproductive mixing.
Shannon J O'Leary   +6 more
doaj   +7 more sources

Can genetic estimators provide robust estimates of the effective number of breeders in small populations? [PDF]

open access: yesPLoS ONE, 2012
The effective population size (N(e)) is proportional to the loss of genetic diversity and the rate of inbreeding, and its accurate estimation is crucial for the monitoring of small populations.
Marion Hoehn   +4 more
doaj   +7 more sources

Estimation of effective number of breeders and effective population size in an abundant and heavily exploited marine teleost

open access: yesEvolutionary Applications
Obtaining reliable estimates of the effective number of breeders (Nb) and generational effective population size (Ne) for fishery‐important species is challenging because they are often iteroparous and highly abundant, which can lead to bias and ...
Andrea Bertram   +7 more
doaj   +5 more sources

Pool Age and Local Habitat Are Associated with Effective Number of Breeders in Spotted Salamander Populations Colonizing Created Vernal Pools

open access: yesDiversity, 2023
Population genetics can reveal whether colonization of created habitats has been successful and inform future strategies for habitat creation. We used genetic analysis to investigate spotted salamander (Ambystoma maculatum) colonization of created vernal
Alice R. Millikin   +3 more
doaj   +3 more sources

Considerations for monitoring population trends of colonial waterbirds using the effective number of breeders and census estimates [PDF]

open access: yesEcology and Evolution, 2018
Detecting trends in population size fluctuations is a major focus in ecology, evolution, and conservation biology. Populations of colonial waterbirds have been monitored using demographic approaches to determine annual census size (Na).
Fagner M. daSilva   +3 more
doaj   +5 more sources

Estimation of effective number of breeders from molecular coancestry of single cohort sample

open access: yesEvolutionary Applications, 2008
The effective population size, Ne, is an important parameter in population genetics and conservation biology. It is, however, difficult to directly estimate Ne from demographic data in many wild species.
Tetsuro Nomura
exaly   +4 more sources

Estimates of Effective Number of Breeders Identify Drivers of Decline in Mid‐Atlantic Brook Trout Populations

open access: yesEvolutionary Applications
Brook Trout (Salvelinus fontinalis) populations have experienced marked declines throughout their native range and are presently threatened due to isolation in small habitat fragments, land use changes, and climate change.
Zachary L. Robinson   +4 more
doaj   +4 more sources

Effective number of breeders, effective population size and their relationship with census size in an iteroparous species,Salvelinus fontinalis [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2016
The relationship between the effective number of breeders ( N b ) and the generational effective size ( N e ) has rarely been examined empirically in species with overlapping generations and iteroparity.
Gregory Mccracken   +2 more
exaly   +4 more sources

Effective number of breeders from sibship reconstruction: empirical evaluations using hatchery steelhead [PDF]

open access: yesEvolutionary Applications, 2016
Effective population size (Ne) is among the most important metrics in evolutionary biology. In natural populations, it is often difficult to collect adequate demographic data to calculate Ne directly.
Michael W. Ackerman   +8 more
semanticscholar   +3 more sources

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