Prey selection by  Asplanchna girodi  (Rotifera): the importance of prey defence mechanisms | Zendy

CONDEPORCUNA J.M. | Zendy; SARMA S.S.S. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Prey selection by Asplanchna girodi (Rotifera): the importance of prey defence mechanisms

Author(s) -

CONDEPORCUNA J.M.,

SARMA S.S.S.

Publication year - 1995

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.1365-2427.1995.tb00396.x

Subject(s) - rotifer , predation , biology , fecundity , predator , clearance rate , zoology , functional response , ecology , brachionus , population , demography , sociology , endocrinology

SUMMARY 1. Predator (laboratory‐grown Asplanchna girodi and prey (several field‐collected non‐carnivorous rotifer species) interactions were studied in the laboratory as a function of both predator and prey densities. The clearance rates of A, girodi decreased with increasing prey density. Predator density had no effect on the feeding of A. girodi . 2. Asplanchna girodi selectively fed on Keratella cochlearis . Its clearance rates for K. cochlearis were much higher than those for Polyarthra and Brachionus . Short‐spined forms (spine length less than 25 μm) showed a significantly higher susceptibility to predation than either the non‐spined or the long‐spined forms. 3. Large Asplanchna individuals fed selectively on reproductive females of K. cochlearis , thereby reducing the fecundity of their prey.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research