Allelopathy prevents competitive exclusion and promotes phytoplankton biodiversity
نویسندگان
چکیده
منابع مشابه
Toxin-allelopathy among phytoplankton species prevents competitive exclusion
Toxic or allelopathic compounds liberated by toxin-producing phytoplankton (TPP) acts as a strong mediator in plankton dynamics. On an analysis of a set of phytoplankton biomass-data that have been collected by our group in the North-West part of the Bay of Bengal, and by analysis of a three-component mathematical model under a constant as well as a stochastic environment, we explore the role o...
متن کاملThe competitive exclusion principle versus biodiversity through competitive segregation and further adaptation to spatial heterogeneities.
In this work we introduce a general class of spatially heterogeneous competing species models where the species are assumed to disperse in a random way through the inhabiting region in the presence of some refuge patches where they are free from the aggressions of the antagonist species. Our model shows that the competitive exclusion principle fails to be true under these circumstances, as the ...
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Biotic interactions in the plankton can be both complex and dynamic. Competition among phytoplankton is often chemically mediated, but no studies have considered whether allelopathic compounds are modified by biotic interactions. Here, we show that compounds exuded during Karenia brevis blooms were allelopathic to the cosmopolitan diatom Skeletonema costatum, but that bloom allelopathy varied d...
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The biodiversity of phytoplankton is a core measurement of the state and activity of marine ecosystems. In the context of historical approaches, we review recent major advances in the technologies that have enabled deeper characterization of the biodiversity of phytoplankton. In particular, high-throughput sequencing of single loci/genes, genomes, and communities (metagenomics) has revealed exc...
متن کاملThe competitive exclusion principle.
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ژورنال
عنوان ژورنال: Oikos
سال: 2017
ISSN: 0030-1299
DOI: 10.1111/oik.04046