Russian Journal of Ecology, Vol. 35, No. 5, 2004, pp. 354–356. Translated from Ekologiya, No. 5, 2004, pp. 398–400. Original Russian Text Copyright © 2004 by Ivanov. SHORT COMMUNICATIONS Specific Features of the Functional Response of a Sluggish Predator to Mobile Prey in an Aquatic Environment (Experimental Approach) V. K. Ivanov Darwin State Nature Reserve, Borok, Cherepovetskii raion, Vologda oblast, 162543 Russia Received July 29, 2003 Key words: predator, prey, interactions, functional response. Animal interactions, particularly those in the preda- allowing the caddisworms to build their cases (see tor–prey system, are still of great interest to research- below). When necessary, water at room temperature ers. The inﬂuence of predation on a prey population is (17–18°C) was added to make up for losses by evapo- ambiguous and largely depends on the predator’s mode ration. Experiments were performed in three variants of feeding, food spectrum, and relationships with other (with one, four, and six caddisworms), three replications predators, as well as on the prey population density. It each. Ten mayﬂy nymphs were placed in each Petri dish, is believed (Begon et al., 1986) that the density of food and this number was maintained in the course of the objects is directly
Russian Journal of Ecology – Springer Journals
Published: Dec 27, 2004
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