A predator from East Africa that chooses malaria vectors as preferred prey.

<h4>Background</h4>All vectors of human malaria, a disease responsible for more than one million deaths per year, are female mosquitoes from the genus Anopheles. Evarcha culicivora is an East African jumping spider (Salticidae) that feeds indirectly on vertebrate blood by selecting blood...

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Main Authors: Ximena J Nelson, Robert R Jackson
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2006-12-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0000132
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author Ximena J Nelson
Robert R Jackson
author_facet Ximena J Nelson
Robert R Jackson
author_sort Ximena J Nelson
collection DOAJ
description <h4>Background</h4>All vectors of human malaria, a disease responsible for more than one million deaths per year, are female mosquitoes from the genus Anopheles. Evarcha culicivora is an East African jumping spider (Salticidae) that feeds indirectly on vertebrate blood by selecting blood-carrying female mosquitoes as preferred prey.<h4>Methodology/principal findings</h4>By testing with motionless lures made from mounting dead insects in lifelike posture on cork discs, we show that E. culicivora selects Anopheles mosquitoes in preference to other mosquitoes and that this predator can identify Anopheles by static appearance alone. Tests using active (grooming) virtual mosquitoes rendered in 3-D animation show that Anopheles' characteristic resting posture is an important prey-choice cue for E. culicivora. Expression of the spider's preference for Anopheles varies with the spider's size, varies with its prior feeding condition and is independent of the spider gaining a blood meal.<h4>Conclusions/significance</h4>This is the first experimental study to show that a predator of any type actively chooses Anopheles as preferred prey, suggesting that specialized predators having a role in the biological control of disease vectors is a realistic possibility.
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spelling doaj.art-38f4a9a252214e7f8ff839f03c994c702022-12-21T23:30:52ZengPublic Library of Science (PLoS)PLoS ONE1932-62032006-12-011e13210.1371/journal.pone.0000132A predator from East Africa that chooses malaria vectors as preferred prey.Ximena J NelsonRobert R Jackson<h4>Background</h4>All vectors of human malaria, a disease responsible for more than one million deaths per year, are female mosquitoes from the genus Anopheles. Evarcha culicivora is an East African jumping spider (Salticidae) that feeds indirectly on vertebrate blood by selecting blood-carrying female mosquitoes as preferred prey.<h4>Methodology/principal findings</h4>By testing with motionless lures made from mounting dead insects in lifelike posture on cork discs, we show that E. culicivora selects Anopheles mosquitoes in preference to other mosquitoes and that this predator can identify Anopheles by static appearance alone. Tests using active (grooming) virtual mosquitoes rendered in 3-D animation show that Anopheles' characteristic resting posture is an important prey-choice cue for E. culicivora. Expression of the spider's preference for Anopheles varies with the spider's size, varies with its prior feeding condition and is independent of the spider gaining a blood meal.<h4>Conclusions/significance</h4>This is the first experimental study to show that a predator of any type actively chooses Anopheles as preferred prey, suggesting that specialized predators having a role in the biological control of disease vectors is a realistic possibility.https://doi.org/10.1371/journal.pone.0000132
spellingShingle Ximena J Nelson
Robert R Jackson
A predator from East Africa that chooses malaria vectors as preferred prey.
PLoS ONE
title A predator from East Africa that chooses malaria vectors as preferred prey.
title_full A predator from East Africa that chooses malaria vectors as preferred prey.
title_fullStr A predator from East Africa that chooses malaria vectors as preferred prey.
title_full_unstemmed A predator from East Africa that chooses malaria vectors as preferred prey.
title_short A predator from East Africa that chooses malaria vectors as preferred prey.
title_sort predator from east africa that chooses malaria vectors as preferred prey
url https://doi.org/10.1371/journal.pone.0000132
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