Results 51 to 60 of about 16,226,702 (331)

Differences in local population history at the finest level: the case of the Estonian population

open access: yesEuropean Journal of Human Genetics, 2020
Several recent studies detected fine-scale genetic structure in human populations. Hence, groups conventionally treated as single populations harbour significant variation in terms of allele frequencies and patterns of haplotype sharing.
V. Pankratov   +20 more
semanticscholar   +1 more source

Historical changes in caribou distribution and land cover in and around Prince Albert National Park: land management implications

open access: yesRangifer, 2011
In central Saskatchewan, boreal woodland caribou population declines have been documented in the 1940s and again in the 1980s. Although both declines led to a ban in sport hunting, a recovery was only seen in the 1950s and was attributed to wolf control ...
Maria L. Arlt, Micheline Manseau
doaj   +1 more source

Size Estimate of a Local Population of Brychius Hungerfordi (Coleoptera: Haliplidae) [PDF]

open access: yes, 2018
Much of the natural history of the endangered crawling water beetle, Brychius hungerfordi, is unknown. Population estimates have only been surmised. We have measured, using a mark and recapture technique, a localize population of the beetle in a pool on ...
Ebbers, Bert   +3 more
core   +3 more sources

Swedish population history [PDF]

open access: yesScandinavian Economic History Review, 1976
Abstract Scandinavia, and Sweden in particular, has long held a prominent place in studies of historical demography. This is explained by the simple fact that these countries began to hold population censuses and to establish the national registration of baptisms, burials and marriages in the eighteenth century long before other European countries ...
openaire   +1 more source

Non-linear relationship between food resource exploitation and population density of stored-product pests

open access: yesCzech Journal of Food Sciences, 2000
The main current strategies (IPM, HACCP) to control pests in stored food products are based on critical thresholds derived from pest population density.
V. Stejskal
doaj   +1 more source

Using life-history traits to explain bird population responses to changing weather variability [PDF]

open access: yes, 2011
Bird population dynamics are expected to change in response to increased weather variability, an expression of climate change. The extent to which species are sensitive to effects of weather on survival and reproduction depends on their life-history ...
Braak, C.J.F., ter   +4 more
core   +2 more sources

Uganda Genome Resource Enables Insights into Population History and Genomic Discovery in Africa.

open access: yesCell, 2019
Genomic studies in African populations provide unique opportunities to understand disease etiology, human diversity, and population history. In the largest study of its kind, comprising genome-wide data from 6,400 individuals and whole-genome sequences ...
D. Gurdasani   +56 more
semanticscholar   +1 more source

Can one hear the shape of a population history?

open access: yes, 2014
Reconstructing past population size from present day genetic data is a major goal of population genetics. Recent empirical studies infer population size history using coalescent-based models applied to a small number of individuals. Here we provide tight
Kim, Junhyong   +3 more
core   +1 more source

The stellar populations of spiral galaxies [PDF]

open access: yes, 1999
We have used a large sample of low-inclination spiral galaxies with radially-resolved optical and near-infrared photometry to investigate trends in star formation history with radius as a function of galaxy structural parameters.
Bell, Eric F., de Jong, Roelof S.
core   +2 more sources

Life histories of pathogen populations [PDF]

open access: yesInternational Journal of Infectious Diseases, 2009
The populations of pathogens in individual hosts have many of the characteristics of multicellular organisms, or individuals. These populations go through a life cycle within a host and they reproduce by founding daughter populations in new hosts. Natural selection shapes the life history characteristics of pathogen populations--life expectancy, trade ...
openaire   +2 more sources

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