Predatory capacity and prey selectivity of nymphs of the dragonfly Pantala hymenaea

Publication Type:Journal Article
Year of Publication:2005
Authors:H. Quiroz-Mart{\'ınez, Rodr{\'ıguez-Castro, V. Ariadna, Sol{\'ıs-Rojas, C., Maldonado-Blanco, M. {\'ıaGuadalupe
Journal:J Am Mosq Control Assoc
Volume:21
Pagination:328-30
Date Published:Sep
Abstract:

Predatory capacity and prey selectivity of nymphs of the dragonfly Pantala hymenaea (Odonata: Libellulidae) were evaluated on larvae of the mosquito Culex quinquefasciatus (Diptera: Culicidae) and larvae of the midge Chironomus plumosus (Diptera: Chironomidae) as prey. With functional response methodology, 7 larval densities were exposed to predator individuals in a glass jar under laboratory conditions. The study was performed in 2 experiments. The 1st was a test system with each prey species alone. The 2nd tested a mixture of both prey species in a 1:1 ratio. Prey selectivity and prey capacity were significantly greater on midge larvae than on mosquito larvae.

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