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Related Concept Videos

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.
Threats to Biodiversity01:50

Threats to Biodiversity

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
What is Population Genetics?01:25

What is Population Genetics?

A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.While some alleles of a given gene might be observed commonly, other variants...
Genetics of Speciation02:16

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.The genetics of speciation involves the different traits or isolating mechanisms preventing gene exchange, leading to reproductive isolation. Reproductive isolation can be due to reproductive barriers that have effects either before or after the formation of a zygote. Pre-zygotic mechanisms prevent fertilization from occurring, and post-zygotic mechanisms...
Evolutionary Relationships through Genome Comparisons02:54

Evolutionary Relationships through Genome Comparisons

Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
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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...

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Related Experiment Video

Updated: Jun 10, 2026

Reconstructing Terrestrial Paleoclimate and Paleoecology with Fossil Leaves Using Digital Leaf Physiognomy and Leaf Mass Per Area
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Landscape genetics: where are we now?

Andrew Storfer1, Melanie A Murphy, Stephen F Spear

  • 1School of Biological Sciences, Washington State University, Pullman, WA 99164, USA. astorfer@wsu.edu

Molecular Ecology
|August 21, 2010
PubMed
Summary

Landscape genetics research has expanded significantly, revealing varied impacts of landscape variables on gene flow across species. Further species-specific studies are needed to understand these complex ecological interactions.

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Area of Science:

  • Ecology
  • Genetics
  • Conservation Biology

Background:

  • Landscape genetics has rapidly grown since 2003, with 655 articles identified between 1998-2008.
  • A review of 174 studies explicitly linking landscape and genetic data was conducted.

Purpose of the Study:

  • To assess taxonomic and temporal trends in landscape genetics research.
  • To evaluate geographic regions, research questions, molecular markers, statistical analyses, and spatial data used.

Main Methods:

  • Systematic review of 174 landscape genetics studies published between 1998-2008.
  • Analysis of study trends including geographic focus, research questions, molecular markers (microsatellites, AFLPs), and statistical methods (Mantel, assignment tests).

Main Results:

  • Studies predominantly occurred in developed regions and terrestrial habitats.
  • Research focused on landscape barriers and gene flow; microsatellites and AFLPs were common markers.
  • Results showed varied species-specific responses to landscape variables like topographic relief and habitat fragmentation.

Conclusions:

  • General trends exist, but landscape effects are species-specific, necessitating tailored research.
  • Identified knowledge and methodological gaps, offering guidelines for future landscape genetics studies and research directions.