Undergraduate Honors Thesis Projects
Date of Award
4-2019
Document Type
Honors Paper
Degree Name
Zoo and Conservation Science-BS
Department
Biology & Earth Science
Advisor
Anna Young, PhD
First Committee Member
Joan Esson, PhD
Second Committee Member
John Tansey, PhD
Keywords
Poicephalus, parrot, morphology, color, taxonomy
Subject Categories
Other Animal Sciences | Zoology
Abstract
Though describing and delimiting species is one of the principle aspects of many disciplines within biology, there is often debate about which methods and concepts should be used to make such decisions. The Tobias criteria for quantitative species delimitation represent one attempt to create a standard method of delimiting species based on the morphological species concept. However, previous examples of using these criteria have not always been completely quantitative. This study uses quantitative morphological and color data of three Poicephalusparrots as a case study for the effectiveness of the Tobias criteria. The results show varying levels of support for and dissent against previous species decisions made regarding these parrots, and may provide support for rethinking these past delimitations as well as working towards multifaceted, quantitative decision-making for future species.
Recommended Citation
Connon, Eileen, "Morphological and Color Variation in Poicephalus Parrots" (2019). Undergraduate Honors Thesis Projects. 85.
https://digitalcommons.otterbein.edu/stu_honor/85