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Direct and indirect top-down effects of previous contact with an enemy on the feeding behavior of blowfly larvae
We investigated the addition of a trophic level to a simple food web. Direct and indirect effects caused by the presence of a new species in the food web were quantified by estimating survival and consumption rates on the basal resource. We focused on a blowfly intraguild prey–predator system with v...
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Published in: | Entomologia experimentalis et applicata 2012-01, Vol.142 (1), p.71-77 |
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container_title | Entomologia experimentalis et applicata |
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creator | Reigada, Carolina Godoy, Wesley A. C. |
description | We investigated the addition of a trophic level to a simple food web. Direct and indirect effects caused by the presence of a new species in the food web were quantified by estimating survival and consumption rates on the basal resource. We focused on a blowfly intraguild prey–predator system with various ecological interactions taking place during the larval period. The experiments were designed to set Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae) as the intraguild prey and Chrysomya albiceps (Wiedemann) as the intraguild predator and/or cannibal. The generalist pupal parasitoid Nasonia vitripennis (Walker) (Hymenoptera: Pteromalidae) was introduced into the system during a non‐susceptible life stage of the interacting blowfly species. The cascading parasitoid effects induced behavioral changes in the blowfly larvae, increasing the impact of intraguild predation and cannibalism on blowfly survival. The results suggest that blowfly larvae can change their feeding behavior in response to the presence of a parasitoid. |
doi_str_mv | 10.1111/j.1570-7458.2011.01195.x |
format | article |
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C.</creator><creatorcontrib>Reigada, Carolina ; Godoy, Wesley A. C.</creatorcontrib><description>We investigated the addition of a trophic level to a simple food web. Direct and indirect effects caused by the presence of a new species in the food web were quantified by estimating survival and consumption rates on the basal resource. We focused on a blowfly intraguild prey–predator system with various ecological interactions taking place during the larval period. The experiments were designed to set Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae) as the intraguild prey and Chrysomya albiceps (Wiedemann) as the intraguild predator and/or cannibal. The generalist pupal parasitoid Nasonia vitripennis (Walker) (Hymenoptera: Pteromalidae) was introduced into the system during a non‐susceptible life stage of the interacting blowfly species. 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C.</creatorcontrib><title>Direct and indirect top-down effects of previous contact with an enemy on the feeding behavior of blowfly larvae</title><title>Entomologia experimentalis et applicata</title><description>We investigated the addition of a trophic level to a simple food web. Direct and indirect effects caused by the presence of a new species in the food web were quantified by estimating survival and consumption rates on the basal resource. We focused on a blowfly intraguild prey–predator system with various ecological interactions taking place during the larval period. The experiments were designed to set Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae) as the intraguild prey and Chrysomya albiceps (Wiedemann) as the intraguild predator and/or cannibal. The generalist pupal parasitoid Nasonia vitripennis (Walker) (Hymenoptera: Pteromalidae) was introduced into the system during a non‐susceptible life stage of the interacting blowfly species. The cascading parasitoid effects induced behavioral changes in the blowfly larvae, increasing the impact of intraguild predation and cannibalism on blowfly survival. The results suggest that blowfly larvae can change their feeding behavior in response to the presence of a parasitoid.</description><subject>Behavior</subject><subject>Biological and medical sciences</subject><subject>Calliphoridae</subject><subject>cannibalism</subject><subject>Chrysomya albiceps</subject><subject>Chrysomya megacephala</subject><subject>Diptera</subject><subject>Food chains</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Hymenoptera</subject><subject>Insecta</subject><subject>interaction effects</subject><subject>intraguild predation</subject><subject>Invertebrates</subject><subject>Nasonia vitripennis</subject><subject>Pteromalidae</subject><issn>0013-8703</issn><issn>1570-7458</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqNkEFv2yAUx1G1Sc26fgekaUe7YJsAhx26Lu0mVduhm3pEBB4NmQseOE3y7YfnKuchIXji93tP_BHClNS0rKttTRknFe-YqBtCaV22ZPXhDC1OD2_QghDaVoKT9hy9y3lLCOFc0gUavvgEZsQ6WOyDnYsxDpWN-4DBuVJnHB0eErz4uMvYxDDqAu39uCkahgDPRxwDHjeAHYD14QmvYaMLniZz3ce964-41-lFw3v01uk-w-XreYF-3a5-3nyt7n_cfbu5vq9MRySrWNcaaWT5wnotreVOiiUY1mkJ0rVAhZHWWCuoM0JyaChxDeeuKZ7jbtm1F-jD3HdI8c8O8qi2cZdCGako6zohWUcnSsyUSTHnBE4NyT_rdFSUqClftVVTjGqKUU35qn_5qkNRP74O0Nno3iUdjM8nv2GNlI3khfs0c3vfw_G_-6vV6nq6Fb-afZ9HOJx8nX6rJW85U4_f79TD48MtEe1nJdu_242d3w</recordid><startdate>201201</startdate><enddate>201201</enddate><creator>Reigada, Carolina</creator><creator>Godoy, Wesley A. 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The experiments were designed to set Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae) as the intraguild prey and Chrysomya albiceps (Wiedemann) as the intraguild predator and/or cannibal. The generalist pupal parasitoid Nasonia vitripennis (Walker) (Hymenoptera: Pteromalidae) was introduced into the system during a non‐susceptible life stage of the interacting blowfly species. The cascading parasitoid effects induced behavioral changes in the blowfly larvae, increasing the impact of intraguild predation and cannibalism on blowfly survival. The results suggest that blowfly larvae can change their feeding behavior in response to the presence of a parasitoid.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/j.1570-7458.2011.01195.x</doi><tpages>7</tpages></addata></record> |
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subjects | Behavior Biological and medical sciences Calliphoridae cannibalism Chrysomya albiceps Chrysomya megacephala Diptera Food chains Fundamental and applied biological sciences. Psychology Hymenoptera Insecta interaction effects intraguild predation Invertebrates Nasonia vitripennis Pteromalidae |
title | Direct and indirect top-down effects of previous contact with an enemy on the feeding behavior of blowfly larvae |
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