Results 21 to 30 of about 1,472,050 (256)

Demographic resilience of brook trout populations subjected to experimental size‐selective harvesting

open access: yesEvolutionary Applications, 2022
Sustainable management of exploited populations benefits from integrating demographic and genetic considerations into assessments, as both play a role in determining harvest yields and population persistence.
Shannon H. Clarke   +5 more
doaj   +1 more source

Estimates of Effective Population Size in Commercial and Hatchery Strains of Coho Salmon (Oncorhynchus kisutch (Walbaum, 1792))

open access: yesAnimals, 2022
Understanding the genetic status of aquaculture strains is essential for developing management guidelines aimed at sustaining the rates of genetic gain for economically important traits, as well as securing populations that will be robust to climate ...
Victor Martinez   +6 more
doaj   +1 more source

Population structure and inbreeding of Holstein cattle in southern Brazil

open access: yesRevista Brasileira de Zootecnia, 2020
The present investigation aimed to evaluate the population structure and inbreeding of Holstein herds in southern Brazil. To carry out the analysis, the Associação Paranaense de Criadores de Bovinos da Raça Holandesa (APCBRH) in Brazil provided the data,
Michelli de Fátima Sieklicki   +4 more
doaj   +1 more source

Pacific salmon and the coalescent effective population size. [PDF]

open access: yesPLoS ONE, 2010
Pacific salmon include several species that are both commercially important and endangered. Understanding the causes of loss in genetic variation is essential for designing better conservation strategies.
Can Cenik, John Wakeley
doaj   +1 more source

Long-term dynamics of morphogenetic indicators of the terrestrial mollusk Cepaea vindobonensis (Gastropoda, Pulmonata, Helicidae) in the Bekaryukovsky Bor Natural Monument, Russia

open access: yesNature Conservation Research: Заповедная наука, 2021
Cepaea vindobonensis (Gastropoda, Pulmonata, Helicidae) is a terrestrial mollusk, protected in the Belgorod Region (European Russia). In the Bekaryukovsky Bor Natural Monument, its peripheral population is known considering to be one of the most abundant
Eduard A. Snegin   +1 more
doaj   +1 more source

On Heterozygosity and the Effective Size of Populations Subject to Size Changes [PDF]

open access: yesEvolution, 1982
When a population is subject to fluctuations in size, the effective population number during any time interval is usually approximated by the harmonic mean of the successive generation sizes (Wright, 1938, 1939). If there are no mutations, the population will eventually reach complete homozygosity.
Uzi, Motro, Glenys, Thomson
openaire   +2 more sources

The effective size of bryophyte populations

open access: yesJournal of Theoretical Biology, 2009
Bryophytes with their dominant haploid stage conform poorly to the life cycles generally treated in population genetical models. Here we make a detailed analysis of what effective sizes bryophyte model populations have as a function of their breeding system.
Bengtsson, Bengt O., Cronberg, Nils
openaire   +4 more sources

Effective Population Size in a Continuously Distributed Population [PDF]

open access: yesEvolution, 1995
An individual-based simulation model was created to examine genetic variability, time until fixation and spatial genetic structure in a continuously distributed population. Previous mathematical models for continuously distributed populations have the difficulty that the assumption of independent reproduction and independent dispersal of offspring ...
openaire   +2 more sources

Extensions of the Coalescent Effective Population Size [PDF]

open access: yesGenetics, 2009
Abstract We suggest two extensions of the coalescent effective population size of Sjödin  et al. (2005) and make a third, practical point. First, to bolster its relevance to data and allow comparisons between models, the coalescent effective size should be recast as a kind of mutation effective size.
John, Wakeley, Ori, Sargsyan
openaire   +2 more sources

Assessing the genetic diversity in small farm animal populations*

open access: yesAnimal, 2011
Genetic variation is vital for the populations to adapt to varying environments and to respond to artificial selection; therefore, any conservation and development scheme should start from assessing the state of variation in the population.
M.A. Toro   +4 more
doaj   +1 more source

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