Taking a Hit: Resistance to Handling in Model-Mimic Insect Complexes

It appears your Web browser is not configured to display PDF files. Download adobe Acrobat or click here to download the PDF file.

Click here to download the PDF file.

Creator: 

Stefan, Amanda Marie

Date: 

2022

Abstract: 

Aposematism has been hypothesised to co-occur with an improved ability to survive being handled by a predator with negligible damage. The current literature on this "resistance to handling" is reviewed, including anecdotal accounts, experimental evidence and bio-physical considerations. The relationship between resistance to handling and Batesian mimicry is tested through two experiments on field-caught specimens. The first evaluates the ability of specimens to survive a given amount of compressive force using the successive application of increasing weights, comparing mimics (Diptera: Syrphidae) to non-mimics (non-syrphid Diptera) and their models (Hymenoptera). The second experiment measures the force required to deform an insect by a given proportion. Hymenopterans were the most resistant group, syrphid flies the least, and non-syrphid dipterans intermediate between the two. In all groups, both larger body size and a greater resistance to deformation were correlated with higher kill weights, while mimicry status and mimetic fidelity were not.

Subject: 

Biology

Language: 

English

Publisher: 

Carleton University

Thesis Degree Name: 

Master of Science: 
M.Sc.

Thesis Degree Level: 

Master's

Thesis Degree Discipline: 

Biology

Parent Collection: 

Theses and Dissertations

Items in CURVE are protected by copyright, with all rights reserved, unless otherwise indicated. They are made available with permission from the author(s).