Experiments and observations of the near-host orientation and landing behavior of simuliidae (Diptera)
Records of the seasonal succession and seasonal range of several species of adult female mammalophilic Simuliidae of insular Newfoundland are presented. -- Collections of mammalophilic Simuliidae on colored-shaped two-dimensional silhouettes indicated that various species orient and land on certain...
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Memorial University of Newfoundland
1972
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Online Access: | https://research.library.mun.ca/4121/ https://research.library.mun.ca/4121/1/Bradbury_WayneClaude.pdf https://research.library.mun.ca/4121/2/Bradbury_WayneClaude.pdf |
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ftmemorialuniv:oai:research.library.mun.ca:4121 2023-10-01T03:57:38+02:00 Experiments and observations of the near-host orientation and landing behavior of simuliidae (Diptera) Bradbury, Wayne Claude 1972 application/pdf https://research.library.mun.ca/4121/ https://research.library.mun.ca/4121/1/Bradbury_WayneClaude.pdf https://research.library.mun.ca/4121/2/Bradbury_WayneClaude.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/4121/1/Bradbury_WayneClaude.pdf https://research.library.mun.ca/4121/2/Bradbury_WayneClaude.pdf Bradbury, Wayne Claude <https://research.library.mun.ca/view/creator_az/Bradbury=3AWayne_Claude=3A=3A.html> (1972) Experiments and observations of the near-host orientation and landing behavior of simuliidae (Diptera). Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 1972 ftmemorialuniv 2023-09-03T06:44:54Z Records of the seasonal succession and seasonal range of several species of adult female mammalophilic Simuliidae of insular Newfoundland are presented. -- Collections of mammalophilic Simuliidae on colored-shaped two-dimensional silhouettes indicated that various species orient and land on certain 'preferred' radiation compositions. The Prosimulium mixtum complex and Cnephia mutata were attracted consistently to black silhouettes; the Simulium venustum complex were attracted to silhouettes composed of 'blue' radiations while Simulium vittatum were orienting and landing on both red and black silhouettes. Black, 'blue' and red radiation compositions per ovdinem were most attractive while yellow was the least attractive for all species, which indicated that radiation compositions reflecting the least amount of light were the most attractive, but, depending on the species composition of the simuliid population, this generalization tended to become obscure. -- Responses of simuliiids to simple geometric shapes indicated individual contours were equally attractive while the various 'points of convergence' of the silhouette shapes attracted large numbers. -- Collections of flies orienting upwind to C0₂ obtained from a 'grid' of silhouettes indicated a decrease in the number of flies toward the row of silhouettes located downwind from the C0₂ point of emission. Depending on the individual silhouette 'colors' the flies were orienting to the C0₂ from as much as ten meters downwind. -- Simuliids landed on black, disc-shaped silhouettes of different areas in proportion to the surface area exposed. -- The responses of Simuliidae to 'attractive' and 'non-attractive' silhouettes and controlled release of gaseous C0₂ indicated a marked ability of simuliids to visually discriminate the targets largely on the basis of their individual radiation compositions and independant of the concentration of C0₂ or olfactory mechanisms. Discrimination coefficients indicated that distances approximating four meters downwind from the C0₂ ... Thesis Newfoundland Memorial University of Newfoundland: Research Repository |
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Memorial University of Newfoundland: Research Repository |
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ftmemorialuniv |
language |
English |
description |
Records of the seasonal succession and seasonal range of several species of adult female mammalophilic Simuliidae of insular Newfoundland are presented. -- Collections of mammalophilic Simuliidae on colored-shaped two-dimensional silhouettes indicated that various species orient and land on certain 'preferred' radiation compositions. The Prosimulium mixtum complex and Cnephia mutata were attracted consistently to black silhouettes; the Simulium venustum complex were attracted to silhouettes composed of 'blue' radiations while Simulium vittatum were orienting and landing on both red and black silhouettes. Black, 'blue' and red radiation compositions per ovdinem were most attractive while yellow was the least attractive for all species, which indicated that radiation compositions reflecting the least amount of light were the most attractive, but, depending on the species composition of the simuliid population, this generalization tended to become obscure. -- Responses of simuliiids to simple geometric shapes indicated individual contours were equally attractive while the various 'points of convergence' of the silhouette shapes attracted large numbers. -- Collections of flies orienting upwind to C0₂ obtained from a 'grid' of silhouettes indicated a decrease in the number of flies toward the row of silhouettes located downwind from the C0₂ point of emission. Depending on the individual silhouette 'colors' the flies were orienting to the C0₂ from as much as ten meters downwind. -- Simuliids landed on black, disc-shaped silhouettes of different areas in proportion to the surface area exposed. -- The responses of Simuliidae to 'attractive' and 'non-attractive' silhouettes and controlled release of gaseous C0₂ indicated a marked ability of simuliids to visually discriminate the targets largely on the basis of their individual radiation compositions and independant of the concentration of C0₂ or olfactory mechanisms. Discrimination coefficients indicated that distances approximating four meters downwind from the C0₂ ... |
format |
Thesis |
author |
Bradbury, Wayne Claude |
spellingShingle |
Bradbury, Wayne Claude Experiments and observations of the near-host orientation and landing behavior of simuliidae (Diptera) |
author_facet |
Bradbury, Wayne Claude |
author_sort |
Bradbury, Wayne Claude |
title |
Experiments and observations of the near-host orientation and landing behavior of simuliidae (Diptera) |
title_short |
Experiments and observations of the near-host orientation and landing behavior of simuliidae (Diptera) |
title_full |
Experiments and observations of the near-host orientation and landing behavior of simuliidae (Diptera) |
title_fullStr |
Experiments and observations of the near-host orientation and landing behavior of simuliidae (Diptera) |
title_full_unstemmed |
Experiments and observations of the near-host orientation and landing behavior of simuliidae (Diptera) |
title_sort |
experiments and observations of the near-host orientation and landing behavior of simuliidae (diptera) |
publisher |
Memorial University of Newfoundland |
publishDate |
1972 |
url |
https://research.library.mun.ca/4121/ https://research.library.mun.ca/4121/1/Bradbury_WayneClaude.pdf https://research.library.mun.ca/4121/2/Bradbury_WayneClaude.pdf |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
https://research.library.mun.ca/4121/1/Bradbury_WayneClaude.pdf https://research.library.mun.ca/4121/2/Bradbury_WayneClaude.pdf Bradbury, Wayne Claude <https://research.library.mun.ca/view/creator_az/Bradbury=3AWayne_Claude=3A=3A.html> (1972) Experiments and observations of the near-host orientation and landing behavior of simuliidae (Diptera). Masters thesis, Memorial University of Newfoundland. |
op_rights |
thesis_license |
_version_ |
1778529513869672448 |