Inorganic Particles Alter Competition in Grazing Plankton: The Role of Selective Feeding

Suspended sediments (clay and silt particles) differentially inhibit cladoceran populations, but not rotifer populations, and can change the outcome of competition between rotifers and cladocerans in favor of rotifers (Kirk and Gilbert 1990). This paper provides a mechanistic explanation for the pop...

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Bibliographic Details
Published in:Ecology (Durham) 1991-06, Vol.72 (3), p.915-923
Main Author: Kirk, Kevin L.
Format: Article
Language:English
Subjects:
Algae
Animal, plant and microbial ecology
Biological and medical sciences
Body size
Chemical suspensions
Cladocera
Ecological competition
Freshwater
Fundamental and applied biological sciences. Psychology
Ingestion
Phytoplankton
Plankton
Population growth rate
Rotifera
Suspended solids
Zooplankton
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Summary:Suspended sediments (clay and silt particles) differentially inhibit cladoceran populations, but not rotifer populations, and can change the outcome of competition between rotifers and cladocerans in favor of rotifers (Kirk and Gilbert 1990). This paper provides a mechanistic explanation for the population and community effects of suspended clay. Feeding experiments with radioactively labeled phytoplankton cells (Cryptomonas) showed that the presence of suspended clay (
ISSN:0012-9658
1939-9170
DOI:10.2307/1940593