関連する実験動画

Updated: Jul 23, 2026

High-Resolution Video Tracking of Locomotion in Adult Drosophila Melanogaster
09:08

High-Resolution Video Tracking of Locomotion in Adult Drosophila Melanogaster

Published on: February 20, 2009

低移動率のドロソフィラメタポポレーションにおけるアシンクロニーによる安定性

Sutirth Dey1, Amitabh Joshi

  • 1Evolutionary Biology Laboratory, Evolutionary & Organismal Biology Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560 064, India.

Science (New York, N.Y.)
|April 22, 2006
PubMed
まとめ

低移動率は,アシンクロニーを生み出すことにより,フルーツフライのメタポポレーションのダイナミクスを安定させ,高い割合はサブポポレーションを同期させ,不安定性を引き起こしました. 移住は平均の人口サイズに影響を与えず,人口生態学の一般化可能な発見を示唆しています.

さらに関連する動画

Determination of the Spontaneous Locomotor Activity in Drosophila melanogaster08:06

Determination of the Spontaneous Locomotor Activity in Drosophila melanogaster

Published on: April 10, 2014

Conditions Affecting Social Space in Drosophila melanogaster08:04

Conditions Affecting Social Space in Drosophila melanogaster

Published on: November 5, 2015

関連する概念動画

Speciation Rates01:07

Speciation Rates

Speciation can proceed at markedly different rates, and evolutionary biologists commonly describe these differences through the models of gradualism and punctuated equilibrium. Both patterns explain how new species arise, but they differ in the tempo and continuity of evolutionary change. In both cases, evolutionary change arises from heritable variation within populations, with natural selection often shaping traits that improve survival and reproduction under specific environmental conditions.
Frequency-dependent Selection01:21

Frequency-dependent Selection

When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.Positive Frequency-Dependent SelectionIn positive...
Mutation, Gene Flow, and Genetic Drift01:09

Mutation, Gene Flow, and Genetic Drift

In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).Mechanisms of Genetic VariationThe original sources of genetic variation are mutations,...
Genetic Drift03:33

Genetic Drift

Natural selection—probably the most well-known evolutionary mechanism—increases the prevalence of traits that enhance survival and reproduction. However, evolution does not merely propagate favorable traits, nor does it always benefit populations.Life is not fair. A deer grazing contentedly in a field can have her meal cut tragically short by a bolt of lightning. If the doomed doe is one of only three in the population, 1/3 of the population’s gene pool is lost. Random events like this can...
Gene Flow02:39

Gene Flow

Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
Microtubule Instability02:17

Microtubule Instability

Microtubules are hollow cylindrical filaments having a diameter of approximately 25 nm and a length that varies from 200 nm to 25 μm. GTP-bound tubulin subunits form αβ-heterodimers for microtubule assembly. These core building blocks interact longitudinally, polymerizing into protofilaments. The protofilaments then interact with one another through lateral bonding forces to form stable cylindrical microtubules. These cylindrical filaments are dynamic as they undergo repeated assembly and...