• Thumbnail for Population bottleneck
    A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events such as famines, earthquakes...
    25 KB (2,891 words) - 13:14, 25 March 2024
  • Thumbnail for Toba catastrophe theory
    leading to a genetic bottleneck in humans. A number of genetic studies have revealed that 50,000 years ago, the human ancestor population greatly expanded...
    48 KB (4,921 words) - 18:58, 16 February 2024
  • Thumbnail for World population
    earlier, genetic evidence suggests humans may have gone through a population bottleneck of between 1,000 and 10,000 people about 70,000 BC, according to...
    133 KB (9,685 words) - 00:29, 21 March 2024
  • Thumbnail for Bottleneck
    Look up bottleneck in Wiktionary, the free dictionary. Bottleneck literally refers to the narrowed portion (neck) of a bottle near its opening, which...
    2 KB (266 words) - 11:13, 29 March 2023
  • Thumbnail for American bison
    slaughtering of bison during the 1870s, the plains bison population went through a population bottleneck from an estimated 60 million individuals–an estimation...
    98 KB (11,385 words) - 04:56, 14 March 2024
  • Thumbnail for Founder effect
    sampling of the original population. A population bottleneck may also cause a founder effect, though it is not strictly a new population. The founder effect...
    36 KB (4,215 words) - 14:17, 6 March 2024
  • Thumbnail for Dice snake
    effect of bottlenecks on the Dice Snake population when Dice Snakes were introduced into several lakes in Switzerland. A bottleneck on a population is "an...
    13 KB (1,422 words) - 16:06, 20 March 2024
  • Thumbnail for Estimates of historical world population
    human population bottleneck is postulated by some scholars at approximately 70,000 years ago, during the Toba catastrophe, when Homo sapiens population may...
    48 KB (3,576 words) - 16:50, 16 March 2024
  • Genetic drift (category Population genetics)
    contracted to just four random survivors, a phenomenon known as a population bottleneck. The probabilities for the number of copies of allele A (or B) that...
    52 KB (6,266 words) - 20:17, 16 March 2024
  • Thumbnail for Introduction to evolution
    population bottleneck, the reduction does not favour any combination of alleles; it is totally random chance which individuals survive. A bottleneck can...
    80 KB (9,137 words) - 00:59, 21 March 2024
  • population. Population size is directly associated with amount of genetic drift, and is the underlying cause of effects like population bottlenecks and...
    11 KB (1,330 words) - 10:45, 3 December 2023
  • Thumbnail for Lake Toba
    consequences for human populations as it killed most humans living at that time and is believed to have created a population bottleneck in central east Africa...
    29 KB (3,222 words) - 04:52, 22 March 2024
  • simple population models in order to infer historical demographic changes, such as the presence of population bottlenecks, admixture events or population divergence...
    29 KB (3,363 words) - 13:08, 18 January 2024
  • Thumbnail for History of Eurasia
    Maritime Southeast Asia by about 65,000 years ago. The establishment of population centers in Western Asia, the Indian subcontinent and in East Asia is attested...
    17 KB (2,209 words) - 21:03, 14 March 2024
  • Small populations can behave differently from larger populations. They are often the result of population bottlenecks from larger populations, leading...
    17 KB (2,239 words) - 19:58, 16 March 2024
  • Thumbnail for Inbreeding
    Thousands of years ago, the cheetah went through a population bottleneck that reduced its population dramatically so the animals that are alive today are...
    61 KB (7,118 words) - 20:18, 26 March 2024
  • attributed to a population bottleneck among ancestors of modern Finns, estimated to have occurred about 4000 years ago, presumably when populations practicing...
    13 KB (1,459 words) - 07:08, 26 July 2023
  • Thumbnail for Homo
    around 500,000 years ago. Based on genetic studies, a human ancestor population bottleneck (from a possible 100,000 to 1000 individuals) occurred "around 930...
    91 KB (7,843 words) - 14:39, 29 March 2024
  • average in ethnically Jewish populations, particularly Ashkenazi Jews, because of relatively recent population bottlenecks and because of consanguineous...
    45 KB (3,827 words) - 07:45, 27 December 2023
  • transition by Warren Thompson (1887–1973) Demography Population Population growth Population bottleneck Population ecology This disambiguation page lists articles...
    565 bytes (92 words) - 13:51, 4 June 2020
  • Thumbnail for Indigenous people of New Guinea
    clade compared against Lowlanders. The Highlanders underwent a population bottleneck around 10,000 years ago, associated with the adaption of Neolithic...
    27 KB (2,191 words) - 01:31, 26 March 2024
  • Thumbnail for Alpine ibex
    through a population bottleneck of fewer than 100 individuals during its near-extinction event, leading to very low genetic diversity across populations. The...
    44 KB (5,099 words) - 18:06, 21 March 2024
  • Thumbnail for Evolution of the wolf
    common ancestral wolf population that existed as recently as 20,000 years ago. Grey wolves suffered a species-wide population bottleneck (reduction) approximately...
    176 KB (18,984 words) - 19:36, 7 March 2024
  • habitat. Eventually, loss of habitat could lead to a population bottleneck. In a small population, the risk of inbreeding will increase drastically which...
    13 KB (1,520 words) - 22:03, 2 December 2023
  • Thumbnail for Northern elephant seal
    issues. Such issues from the bottleneck a sharp loss of genetic diversity and increased homozygosity in the surviving population, and also a decreased number...
    34 KB (3,983 words) - 03:13, 22 March 2024
  • species (phylogenetics), as well as the population structure, demographic history (e.g. population bottlenecks, population growth), biological dispersal, source–sink...
    61 KB (6,956 words) - 16:10, 11 January 2024
  • Thumbnail for Koala
    Phascolarctos cinereus in south-eastern Australia following a severe population bottleneck". Molecular Ecology. 5 (2): 269–81. Bibcode:1996MolEc...5..269H...
    88 KB (9,542 words) - 06:37, 16 March 2024
  • Thumbnail for HLA-DR
    groupings in the human population it is possible to assert that more than a dozen major variants survived the population bottleneck. This observation is...
    31 KB (2,293 words) - 12:25, 28 December 2023
  • Thumbnail for Human
    other species suggests a population bottleneck during the Late Pleistocene (around 100,000 years ago), in which the human population was reduced to a small...
    261 KB (24,888 words) - 06:19, 27 March 2024
  • Inbreeding depression (category Population genetics)
    often the result of a population bottleneck. In general, the higher the genetic variation or gene pool within a breeding population, the less likely it...
    23 KB (2,667 words) - 05:39, 26 March 2024