Fight and flee : caste decisions during an invasion
Thesis (M.Sc.)--Memorial University of Newfoundland, 2010. Cognitive and Behavioural Ecology Includes bibliographical references (leaves 53-61) Sociality is a trade-off between personal reproduction and investment in helping others to survive and reproduce. Seven species of Australian gall-inducing...
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ftmemorialunivdc:oai:collections.mun.ca:theses4/47197 2023-05-15T17:23:33+02:00 Fight and flee : caste decisions during an invasion Fry, Sheena E. (Sheena Edith), 1985- Memorial University of Newfoundland. Faculty of Science. 2010 xiii, 61 leaves : ill. Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses4/id/47197 Eng eng Electronic Theses and Dissertations (7.54 MB) -- http://collections.mun.ca/PDFs/theses/Fry_SheenaE.pdf a3475048 http://collections.mun.ca/cdm/ref/collection/theses4/id/47197 The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries Gall insects--Behavior--Endocrine aspects Insect societies Pheromones Thrips--Behavior--Endocrine aspects Text Electronic thesis or dissertation 2010 ftmemorialunivdc 2015-08-06T19:21:57Z Thesis (M.Sc.)--Memorial University of Newfoundland, 2010. Cognitive and Behavioural Ecology Includes bibliographical references (leaves 53-61) Sociality is a trade-off between personal reproduction and investment in helping others to survive and reproduce. Seven species of Australian gall-inducing thrips have a helping caste (soldiers). A kleptoparasite in the genus Koptothrips that invades and destroys thrips colonies is hypothesized to have evolutionarily shaped this caste. The two investigations presented here both center on one potential evolutionary reaction to the threat of invasion; the production of an alarm pheromone. In the first study, reproductives and soldiers were assessed in the presence or absence of a putative alarm pheromone. Reproductives moved more directly and quickly than soldiers in the trials, but no impact of the pheromone was detected. In the second study, soldier willingness to fight was assessed in relation to this chemical (or blend). Again, no change in behaviour was detected in the trials. Taken together, these two investigations suggest that chemical communication may not have arisen within the gall inducing thrips. Thesis Newfoundland studies University of Newfoundland Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
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Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
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ftmemorialunivdc |
language |
English |
topic |
Gall insects--Behavior--Endocrine aspects Insect societies Pheromones Thrips--Behavior--Endocrine aspects |
spellingShingle |
Gall insects--Behavior--Endocrine aspects Insect societies Pheromones Thrips--Behavior--Endocrine aspects Fry, Sheena E. (Sheena Edith), 1985- Fight and flee : caste decisions during an invasion |
topic_facet |
Gall insects--Behavior--Endocrine aspects Insect societies Pheromones Thrips--Behavior--Endocrine aspects |
description |
Thesis (M.Sc.)--Memorial University of Newfoundland, 2010. Cognitive and Behavioural Ecology Includes bibliographical references (leaves 53-61) Sociality is a trade-off between personal reproduction and investment in helping others to survive and reproduce. Seven species of Australian gall-inducing thrips have a helping caste (soldiers). A kleptoparasite in the genus Koptothrips that invades and destroys thrips colonies is hypothesized to have evolutionarily shaped this caste. The two investigations presented here both center on one potential evolutionary reaction to the threat of invasion; the production of an alarm pheromone. In the first study, reproductives and soldiers were assessed in the presence or absence of a putative alarm pheromone. Reproductives moved more directly and quickly than soldiers in the trials, but no impact of the pheromone was detected. In the second study, soldier willingness to fight was assessed in relation to this chemical (or blend). Again, no change in behaviour was detected in the trials. Taken together, these two investigations suggest that chemical communication may not have arisen within the gall inducing thrips. |
author2 |
Memorial University of Newfoundland. Faculty of Science. |
format |
Thesis |
author |
Fry, Sheena E. (Sheena Edith), 1985- |
author_facet |
Fry, Sheena E. (Sheena Edith), 1985- |
author_sort |
Fry, Sheena E. (Sheena Edith), 1985- |
title |
Fight and flee : caste decisions during an invasion |
title_short |
Fight and flee : caste decisions during an invasion |
title_full |
Fight and flee : caste decisions during an invasion |
title_fullStr |
Fight and flee : caste decisions during an invasion |
title_full_unstemmed |
Fight and flee : caste decisions during an invasion |
title_sort |
fight and flee : caste decisions during an invasion |
publishDate |
2010 |
url |
http://collections.mun.ca/cdm/ref/collection/theses4/id/47197 |
genre |
Newfoundland studies University of Newfoundland |
genre_facet |
Newfoundland studies University of Newfoundland |
op_source |
Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries |
op_relation |
Electronic Theses and Dissertations (7.54 MB) -- http://collections.mun.ca/PDFs/theses/Fry_SheenaE.pdf a3475048 http://collections.mun.ca/cdm/ref/collection/theses4/id/47197 |
op_rights |
The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. |
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1766113240464490496 |