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Related Concept Videos

Ecological Disturbance02:26

Ecological Disturbance

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An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
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What is Biodiversity?01:19

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Biodiversity describes the variety of living things at multiple organizational levels: genetic, species and ecosystem diversity. Species diversity includes all branches of the evolutionary tree from single-celled prokaryotic organisms, bacteria, and archaea, to the eukaryotic kingdoms: plants; animals; fungi; and protists. To date, there have been about 1.75 million species identified, and new species are discovered every week.
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Keystone Species01:39

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Measures of species biodiversity, such as richness (i.e., the number of species present) and evenness (i.e., their relative abundance), describe an ecological community’s structure. Many factors affect community structure, including abiotic factors (e.g., sunlight and nutrients), disturbances (e.g., fire or flood), species interactions (e.g., predation or competition), and chance events (e.g., foreign species invasion). Certain species—such as keystone species—also play a...
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All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.
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When organisms require the same limited resources within an environment, they may have to compete for them. Competition is a net-negative interaction. Even if two competing individuals or populations do not interact directly, the overall fitness of both competitors is lowered as a result of not having full access to the limited resource.
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JenaTron - An Experimental Approach to Study the Effects of Plant History and Soil History on Grassland Ecosystem Functioning
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Quantifying interspecific and intraspecific diversity effects on ecosystem functioning.

Lynn Govaert1, Andrew P Hendry2, Farshad Fattahi3

  • 1Department of Evolutionary and Integrative Ecology, Leibniz Institute für Gewässerökologie und Binnenfischerei (IGB), Berlin, Germany.

Ecology
|October 30, 2023
PubMed
Summary
This summary is machine-generated.

Intraspecific diversity, the variation within species, significantly impacts ecosystem function, similar to species diversity. New methods quantify these effects, aiding conservation efforts in a changing environment.

Keywords:
Price equationecosystem functioninginterspecific diversityintraspecific diversity

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Area of Science:

  • Ecology
  • Biodiversity Research
  • Ecosystem Functioning

Background:

  • Rapid environmental changes drive significant biodiversity loss, threatening ecosystem functioning.
  • Intraspecific diversity (variation within species) shows potential to influence ecosystem function comparably to interspecific diversity (variation between species).
  • Limited quantitative understanding exists on the relative impacts of intraspecific versus interspecific biodiversity loss on ecosystem functioning.

Purpose of the Study:

  • To develop a quantitative framework for comparing the effects of intraspecific and interspecific biodiversity loss on ecosystem functioning.
  • To extend the interspecific Price partitioning method to incorporate intraspecific diversity dynamics.
  • To provide tools for assessing the compensatory potential of intraspecific diversity for interspecific diversity loss.

Main Methods:

  • Extension of the interspecific Price partitioning method (originally by J. Fox, 2006) to include intraspecific diversity loss and gain.
  • Application of the extended method to analyze biodiversity effects on ecosystem functioning.
  • Utilizing carefully designed experiments to validate the method's insights.

Main Results:

  • The extended Price partitioning method provides quantitative insights into the distinct and combined effects of interspecific and intraspecific diversity on ecosystem function.
  • The method allows for the identification of biodiversity components (at species or population level) with substantial impacts on ecosystem functioning.
  • It enables assessment of whether intraspecific diversity can mitigate the negative consequences of interspecific diversity loss.

Conclusions:

  • Quantifying the relative importance of intraspecific and interspecific diversity is crucial for predicting ecosystem responses to biodiversity loss.
  • The extended partitioning method offers a valuable tool for ecological research and conservation planning.
  • Understanding biodiversity at multiple levels is essential for effective ecosystem management and conservation strategies in the face of global change.