Predation ability and non-consumptive effects of Notonecta sellata (Heteroptera: Notonectidae) on immature stages of Culex pipiens (Diptera: Culicidae)

Predators may have multiple effects on prey, including the mortality caused by consumption, but also non-consumptive effects when prey alter their life history traits in the presence of predators. This study aimed to describe the consumption ability and the non-consumptive effects of <i>Notone...

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Autores principales: Fischer, Sylvia, Pereyra, Daniela, Fernández, Liliana Alicia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84590
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id I19-R120-10915-84590
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Adult size
Development time
Predation
Prey traits
spellingShingle Ciencias Naturales
Adult size
Development time
Predation
Prey traits
Fischer, Sylvia
Pereyra, Daniela
Fernández, Liliana Alicia
Predation ability and non-consumptive effects of Notonecta sellata (Heteroptera: Notonectidae) on immature stages of Culex pipiens (Diptera: Culicidae)
topic_facet Ciencias Naturales
Adult size
Development time
Predation
Prey traits
description Predators may have multiple effects on prey, including the mortality caused by consumption, but also non-consumptive effects when prey alter their life history traits in the presence of predators. This study aimed to describe the consumption ability and the non-consumptive effects of <i>Notonecta sellata</i> (Heteroptera: Notonectidae) on immature stages of <i>Culex pipiens</i> (Diptera: Culicidae). Results showed that adult <i>N. sellata</i> were capable of preying on all larval instars, although they consumed more individuals of the 2nd and 3rd instars. Immature mosquitoes raised in the presence of, but without contact with, predators showed a slower development and smaller-sized emerging adults than those raised in the control treatments. Similar survival rates were recorded in the predator and control treatments. The present study suggests that <i>N. sellata</i> adults negatively affect <i>Cx. pipiens</i> populations in two ways: a) by increasing immature stage mortality as a result of direct consumption and extended development times; and b) by reducing their number of offspring, as a result of delayed reproduction and a lower fecundity of adults.
format Articulo
Articulo
author Fischer, Sylvia
Pereyra, Daniela
Fernández, Liliana Alicia
author_facet Fischer, Sylvia
Pereyra, Daniela
Fernández, Liliana Alicia
author_sort Fischer, Sylvia
title Predation ability and non-consumptive effects of Notonecta sellata (Heteroptera: Notonectidae) on immature stages of Culex pipiens (Diptera: Culicidae)
title_short Predation ability and non-consumptive effects of Notonecta sellata (Heteroptera: Notonectidae) on immature stages of Culex pipiens (Diptera: Culicidae)
title_full Predation ability and non-consumptive effects of Notonecta sellata (Heteroptera: Notonectidae) on immature stages of Culex pipiens (Diptera: Culicidae)
title_fullStr Predation ability and non-consumptive effects of Notonecta sellata (Heteroptera: Notonectidae) on immature stages of Culex pipiens (Diptera: Culicidae)
title_full_unstemmed Predation ability and non-consumptive effects of Notonecta sellata (Heteroptera: Notonectidae) on immature stages of Culex pipiens (Diptera: Culicidae)
title_sort predation ability and non-consumptive effects of notonecta sellata (heteroptera: notonectidae) on immature stages of culex pipiens (diptera: culicidae)
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/84590
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