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Microbiota-mediated competition between Drosophila species.

Antoine Rombaut1, Romain Gallet1, Kenza Qitout1

  • 1CBGP, INRAE, CIRAD, IRD, Montpellier SupAgro, Univ Montpellier, Montpellier, France.

Microbiome
|September 7, 2023
PubMed
Summary

Insect competition is influenced by gut bacteria. Drosophila suzukii avoids laying eggs where Drosophila melanogaster has been, especially if it carries Lactobacillus bacteria, preventing larval competition.

Keywords:
AgroecologyCompetitionMicrobiotaSymbiosis

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Competition

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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