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Related Concept Videos

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Ecological Disturbance

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Ecological Niches

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Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...

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Updated: Jun 3, 2026

JenaTron - An Experimental Approach to Study the Effects of Plant History and Soil History on Grassland Ecosystem Functioning
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Published on: March 21, 2025

Genotypic richness and dissimilarity opposingly affect ecosystem functioning.

A Jousset1, B Schmid, S Scheu

  • 1J.F. Blumenbach Institute of Zoology and Anthropology, Georg-August- University Göttingen, Berliner Straße 28, 37073 Göttingen, Germany. ajousse@gwdg.de

Ecology Letters
|March 26, 2011
PubMed
Summary
This summary is machine-generated.

Biodiversity

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Last Updated: Jun 3, 2026

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Published on: March 21, 2025

Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
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Published on: March 13, 2014

Divergence of Root Microbiota in Different Habitats based on Weighted Correlation Networks
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Published on: September 25, 2021

Area of Science:

  • Ecology
  • Microbiology
  • Genetics

Background:

  • Biodiversity influences ecosystem functioning through resource use and facilitation.
  • High biodiversity can also increase competition and antagonism, negatively impacting communities.

Discussion:

  • Experimental bacterial communities revealed contrasting effects of genotypic richness and dissimilarity on ecosystem functioning.
  • Genotypic dissimilarity enhanced functioning in complex environments via resource complementarity.
  • Genotypic richness led to antagonistic interactions, reducing functioning, especially in simple environments.

Key Insights:

  • The interplay between community genetic structure and resource complexity determines the net biodiversity effect.
  • Increasing richness without dissimilarity can impair ecosystem functioning due to antagonism.

Outlook:

  • Mechanistic models need to incorporate the negative impacts of richness-driven antagonism.
  • Understanding genetic structure is crucial for predicting biodiversity-ecosystem functioning relationships.