Title
Multiple achromatic plumage signals of male quality in the snow bunting (Plectrophenax nivalis)
Date of Award
2012
Publication Type
Master Thesis
Degree Name
M.Sc.
Department
Biological Sciences
First Advisor
Oliver P. Love
Keywords
Biological sciences, Psychology, Achromatic plumage, Individual quality, Multiple ornaments, Multiple receivers, Plectrophenax nivalis
Rights
info:eu-repo/semantics/openAccess
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Abstract
Although males can produce many ornaments, the evolution of multiple ornaments is not well understood. We investigated achromatic plumage traits in the context of multiple ornaments in Arctic-breeding snow buntings ( Plectrophenax nivalis ). We examined whether multiple ornaments: are providing multiple messages, are redundant, are unreliable signals or are aimed at different receivers. We measured plumage reflectance and pigmentation patterns that are differentially, but conspicuously advertised during male inter- and intra-sexual displays. Our results indicate that although several signals are redundant, different body regions appear aimed at different receivers. The wings of males--displayed during courtship--indicate male expected reproductive performance. Conversely, melanin reflectance displayed during intra-sexual threat displays signals territoriality. Different information provided by distinctive aspects of plumage may have differential importance in inter- versus intra-sexual communication. This study demonstrates that even relatively simple plumage traits can serve in complex communication.
Recommended Citation
Guindre-Parker, Sarah, "Multiple achromatic plumage signals of male quality in the snow bunting (Plectrophenax nivalis)" (2012). Electronic Theses and Dissertations. 4810.
https://scholar.uwindsor.ca/etd/4810