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Biomass and energy transfer by a specialized predator of aquatic snails
Author(s) -
ECKBLAD JAMES
Publication year - 1976
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.1976.tb01586.x
Subject(s) - snail , predation , biology , predator , biomass (ecology) , larva , gastropoda , ecology , fishery
Summary The predatory larvae of Sepedon fuscipennis (Diptera: Sciomyzidae) feed only on aquatic pulmonate snails. Under laboratory conditions these larvae utilized ingested snail tissue more efficiently when a lower snail biomass was ingested at lower snail densities. The adaptive value of this response to fluctuating prey availability is suggested.