Electroantennogram responses of tsetse flies (Glossina pallidipes) to host odours in an open field and riverine woodland
The present study was initiated to gain insight into the way in which tsetse flies (Glossina spp.) sense odours at different locations in odour plumes in both an open field and a wooded area. We recorded the antennal responses (EAGs) from stationary living female G. pallidipes 15 m upwind and at var...
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Veröffentlicht in: | Physiological entomology 1998-06, Vol.23 (2), p.176-183 |
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description | The present study was initiated to gain insight into the way in which tsetse flies (Glossina spp.) sense odours at different locations in odour plumes in both an open field and a wooded area.
We recorded the antennal responses (EAGs) from stationary living female G. pallidipes 15 m upwind and at various (60, 40, 20, 10, 5 and 1 m) distances downwind from a synthetic host odour source (containing 1‐octen‐3‐ol, acetone and two phenols), in the natural habitat of the fly (Zimbabwe) using a portable electrophysiological device. Experiments were performed in a flat open area (an airstrip) and in riverine woodland. Differences between responses in different environments were determined by comparing various parameters of the EAGs (intermittency, frequency, amplitude, duration and rate of depolarization).
We found that a fly senses odours as puffs that, further downwind, contain less odour and pass less frequently. In an open field downwind from the source, tsetse perceive more olfactory information than upwind for only 10–20 m, whereas in woodland, olfactory responses remain higher and more frequent than upwind up to at least 60 m. In an open field, olfactory information rapidly increases when approaching the odour source from 20 m and in woodland from 5 m onwards.
It is proposed that averaging odour information over time may be of minor importance in long‐range location of odour sources. The results suggest that tsetse may smell odour‐baited targets from at least 60 m downwind and that the number of flies responding to and being caught by these baits may be higher in woodland than in an open field. |
doi_str_mv | 10.1046/j.1365-3032.1998.232070.x |
format | Article |
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We recorded the antennal responses (EAGs) from stationary living female G. pallidipes 15 m upwind and at various (60, 40, 20, 10, 5 and 1 m) distances downwind from a synthetic host odour source (containing 1‐octen‐3‐ol, acetone and two phenols), in the natural habitat of the fly (Zimbabwe) using a portable electrophysiological device. Experiments were performed in a flat open area (an airstrip) and in riverine woodland. Differences between responses in different environments were determined by comparing various parameters of the EAGs (intermittency, frequency, amplitude, duration and rate of depolarization).
We found that a fly senses odours as puffs that, further downwind, contain less odour and pass less frequently. In an open field downwind from the source, tsetse perceive more olfactory information than upwind for only 10–20 m, whereas in woodland, olfactory responses remain higher and more frequent than upwind up to at least 60 m. In an open field, olfactory information rapidly increases when approaching the odour source from 20 m and in woodland from 5 m onwards.
It is proposed that averaging odour information over time may be of minor importance in long‐range location of odour sources. The results suggest that tsetse may smell odour‐baited targets from at least 60 m downwind and that the number of flies responding to and being caught by these baits may be higher in woodland than in an open field.</description><identifier>ISSN: 0307-6962</identifier><identifier>EISSN: 1365-3032</identifier><identifier>DOI: 10.1046/j.1365-3032.1998.232070.x</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Science Ltd</publisher><subject>Glossina ; Glossina pallidipes ; Glossinidae</subject><ispartof>Physiological entomology, 1998-06, Vol.23 (2), p.176-183</ispartof><rights>Blackwell Science Ltd, Oxford</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3820-a6d81b9e6effbd9693618ee5b241af2e639abed14df6c0f757d03971e78ed9693</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1046%2Fj.1365-3032.1998.232070.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1046%2Fj.1365-3032.1998.232070.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>VOSKAMP, KAREN</creatorcontrib><creatorcontrib>DEN OTTER, C. J.</creatorcontrib><creatorcontrib>NOORMAN, N.</creatorcontrib><title>Electroantennogram responses of tsetse flies (Glossina pallidipes) to host odours in an open field and riverine woodland</title><title>Physiological entomology</title><description>The present study was initiated to gain insight into the way in which tsetse flies (Glossina spp.) sense odours at different locations in odour plumes in both an open field and a wooded area.
We recorded the antennal responses (EAGs) from stationary living female G. pallidipes 15 m upwind and at various (60, 40, 20, 10, 5 and 1 m) distances downwind from a synthetic host odour source (containing 1‐octen‐3‐ol, acetone and two phenols), in the natural habitat of the fly (Zimbabwe) using a portable electrophysiological device. Experiments were performed in a flat open area (an airstrip) and in riverine woodland. Differences between responses in different environments were determined by comparing various parameters of the EAGs (intermittency, frequency, amplitude, duration and rate of depolarization).
We found that a fly senses odours as puffs that, further downwind, contain less odour and pass less frequently. In an open field downwind from the source, tsetse perceive more olfactory information than upwind for only 10–20 m, whereas in woodland, olfactory responses remain higher and more frequent than upwind up to at least 60 m. In an open field, olfactory information rapidly increases when approaching the odour source from 20 m and in woodland from 5 m onwards.
It is proposed that averaging odour information over time may be of minor importance in long‐range location of odour sources. The results suggest that tsetse may smell odour‐baited targets from at least 60 m downwind and that the number of flies responding to and being caught by these baits may be higher in woodland than in an open field.</description><subject>Glossina</subject><subject>Glossina pallidipes</subject><subject>Glossinidae</subject><issn>0307-6962</issn><issn>1365-3032</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><recordid>eNqNkEFvFCEUx0ljk67V70AvRg8zhWEHhoMHU9dtk03rQa3xQtjhUVlZmMJsu_32sh3TswkJebz_74X3Q-iMkpqSOT_f1JTxtmKENTWVsqsb1hBB6v0Rmr10XqEZYURUXPLmBL3OeUMI4YTyGdovPPRjijqMEEK8S3qLE-QhhgwZR4vHDOVg612p3y99zNkFjQftvTNugPwBjxH_jnnE0cRdytgFrAOOAwRsHXhTKoOTe4DkAuDHGI0vL2_QsdU-w9t_9yn6_mXx7eKyWt0sry4-raqedQ2pNDcdXUvgYO3aSC4Zpx1Au27mVNsGOJN6DYbOjeU9saIVhjApKIgOnuOn6N00d0jxfgd5VFuXe_DlDxB3WVHesk7OmxKUU7BPZccEVg3JbXV6UpSog2u1UQej6mBUHVyrybXaF_bjxD46D0__D6qvl4trQQpfTbzLI-xfeJ3-KC6YaNXt9VLd_vhJP_Nfq0L_BblBl2A</recordid><startdate>199806</startdate><enddate>199806</enddate><creator>VOSKAMP, KAREN</creator><creator>DEN OTTER, C. J.</creator><creator>NOORMAN, N.</creator><general>Blackwell Science Ltd</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QR</scope><scope>7SS</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope></search><sort><creationdate>199806</creationdate><title>Electroantennogram responses of tsetse flies (Glossina pallidipes) to host odours in an open field and riverine woodland</title><author>VOSKAMP, KAREN ; DEN OTTER, C. J. ; NOORMAN, N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3820-a6d81b9e6effbd9693618ee5b241af2e639abed14df6c0f757d03971e78ed9693</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>Glossina</topic><topic>Glossina pallidipes</topic><topic>Glossinidae</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>VOSKAMP, KAREN</creatorcontrib><creatorcontrib>DEN OTTER, C. J.</creatorcontrib><creatorcontrib>NOORMAN, N.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Chemoreception Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Physiological entomology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>VOSKAMP, KAREN</au><au>DEN OTTER, C. J.</au><au>NOORMAN, N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electroantennogram responses of tsetse flies (Glossina pallidipes) to host odours in an open field and riverine woodland</atitle><jtitle>Physiological entomology</jtitle><date>1998-06</date><risdate>1998</risdate><volume>23</volume><issue>2</issue><spage>176</spage><epage>183</epage><pages>176-183</pages><issn>0307-6962</issn><eissn>1365-3032</eissn><abstract>The present study was initiated to gain insight into the way in which tsetse flies (Glossina spp.) sense odours at different locations in odour plumes in both an open field and a wooded area.
We recorded the antennal responses (EAGs) from stationary living female G. pallidipes 15 m upwind and at various (60, 40, 20, 10, 5 and 1 m) distances downwind from a synthetic host odour source (containing 1‐octen‐3‐ol, acetone and two phenols), in the natural habitat of the fly (Zimbabwe) using a portable electrophysiological device. Experiments were performed in a flat open area (an airstrip) and in riverine woodland. Differences between responses in different environments were determined by comparing various parameters of the EAGs (intermittency, frequency, amplitude, duration and rate of depolarization).
We found that a fly senses odours as puffs that, further downwind, contain less odour and pass less frequently. In an open field downwind from the source, tsetse perceive more olfactory information than upwind for only 10–20 m, whereas in woodland, olfactory responses remain higher and more frequent than upwind up to at least 60 m. In an open field, olfactory information rapidly increases when approaching the odour source from 20 m and in woodland from 5 m onwards.
It is proposed that averaging odour information over time may be of minor importance in long‐range location of odour sources. The results suggest that tsetse may smell odour‐baited targets from at least 60 m downwind and that the number of flies responding to and being caught by these baits may be higher in woodland than in an open field.</abstract><cop>Oxford, UK</cop><pub>Blackwell Science Ltd</pub><doi>10.1046/j.1365-3032.1998.232070.x</doi><tpages>8</tpages></addata></record> |
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source | Wiley Online Library Journals Frontfile Complete |
subjects | Glossina Glossina pallidipes Glossinidae |
title | Electroantennogram responses of tsetse flies (Glossina pallidipes) to host odours in an open field and riverine woodland |
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