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Mosquito Host Seeking in 3D Using a Versatile Climate-Controlled Wind Tunnel System

Hinze, Annika and Lantz, Jörgen and Hill, Sharon and Ignell, Rickard (2021). Mosquito Host Seeking in 3D Using a Versatile Climate-Controlled Wind Tunnel System. Frontiers in Behavioral Neuroscience. 15 , 643693
[Research article]

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Abstract

Future anthropogenic climate change is predicted to impact sensory-driven behaviors. Building on recent improvements in computational power and tracking technology, we have developed a versatile climate-controlled wind tunnel system, in which to study the effect of climate parameters, including temperature, precipitation, and elevated greenhouse gas levels, on odor-mediated behaviors in insects. To establish a baseline for future studies, we here analyzed the host-seeking behavior of the major malaria vector mosquito, Anopheles gambiae sensu strico, to human odor and carbon dioxide (CO2), under tightly controlled climatic conditions, and isolated from potential background contamination by the presence of an experimenter. When presented with a combination of human foot odor and CO2 (case study I), mosquitoes engaged in faster crosswind flight, spent more time in the filamentous odor plume and targeted the odor source more successfully. In contrast, female An. gambiae s. s. presented with different concentrations of CO2 alone, did not display host-seeking behavior (case study II). These observations support previous findings on the role of human host-associated cues in host seeking and confirm the role of CO2 as a synergist, but not a host-seeking cue on its own. Future studies are aimed at investigating the effect of climate change on odor-mediated behavior in mosquitoes and other insects. Moreover, the system will be used to investigate detection and processing of olfactory information in various behavioral contexts, by providing a fine-scale analysis of flight behavior.

Authors/Creators:Hinze, Annika and Lantz, Jörgen and Hill, Sharon and Ignell, Rickard
Title:Mosquito Host Seeking in 3D Using a Versatile Climate-Controlled Wind Tunnel System
Series Name/Journal:Frontiers in Behavioral Neuroscience
Year of publishing :2021
Volume:15
Article number:643693
Number of Pages:11
Publisher:FRONTIERS MEDIA SA
ISSN:1662-5153
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:Anopheles gambiae, host seeking, 3D tracking, carbon dioxide, olfaction, human odor, behavior
URN:NBN:urn:nbn:se:slu:epsilon-p-111367
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111367
Additional ID:
Type of IDID
DOI10.3389/fnbeh.2021.643693
Web of Science (WoS)000632431500001
ID Code:25454
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Protection Biology
Deposited By: SLUpub Connector
Deposited On:20 Sep 2021 08:51
Metadata Last Modified:20 Sep 2021 09:01

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