Effects of nectar robbing by Xylocopa californica on Chilopsis linearis (Bignoniaceae)

Persistent Link:
http://hdl.handle.net/10150/277005
Title:
Effects of nectar robbing by Xylocopa californica on Chilopsis linearis (Bignoniaceae)
Author:
Pfister, Rachel Walker, 1940-
Issue Date:
1989
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The interaction between Xylocopa californica and Chilopsis linearis was used to test the hypothesis that nectar robbing is costly to plants. No evidence for these costs, either in terms of decreased pollination or increased energy demands, was found. In fact, the mean number of seeds per fruit and the mean individual weight of seeds per fruit was higher from fruits that developed from robbed flowers than from fruits that developed from unrobbed flowers, indicating that the presence of Xylocopa californica enhanced pollination. Chilopsis linearis pollen was isolated from the tips of the abdomens of robbing Xylocopa californica and it was determined that these bees could be transferring pollen from flower to flower as they position themselves to rob. This association was found to be one of mutual benefit rather than one of exploitation.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Insect-plant relationships -- Arizona -- Santa Catalina Mountains.; Fertilization of plants by insects.; Carpenter bees.; Bignoniaceae -- Arizona -- Santa Catalina Mountains.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Ecology and Evolutionary Biology
Degree Grantor:
University of Arizona
Advisor:
Strauss, Richard E.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleEffects of nectar robbing by Xylocopa californica on Chilopsis linearis (Bignoniaceae)en_US
dc.creatorPfister, Rachel Walker, 1940-en_US
dc.contributor.authorPfister, Rachel Walker, 1940-en_US
dc.date.issued1989en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe interaction between Xylocopa californica and Chilopsis linearis was used to test the hypothesis that nectar robbing is costly to plants. No evidence for these costs, either in terms of decreased pollination or increased energy demands, was found. In fact, the mean number of seeds per fruit and the mean individual weight of seeds per fruit was higher from fruits that developed from robbed flowers than from fruits that developed from unrobbed flowers, indicating that the presence of Xylocopa californica enhanced pollination. Chilopsis linearis pollen was isolated from the tips of the abdomens of robbing Xylocopa californica and it was determined that these bees could be transferring pollen from flower to flower as they position themselves to rob. This association was found to be one of mutual benefit rather than one of exploitation.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectInsect-plant relationships -- Arizona -- Santa Catalina Mountains.en_US
dc.subjectFertilization of plants by insects.en_US
dc.subjectCarpenter bees.en_US
dc.subjectBignoniaceae -- Arizona -- Santa Catalina Mountains.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineEcology and Evolutionary Biologyen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorStrauss, Richard E.en_US
dc.identifier.proquest1336710en_US
dc.identifier.oclc22522944en_US
dc.identifier.bibrecord.b17451012en_US
dc.identifier.bibrecord.b17451000en_US
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