Title

Effects of temperature, emergence date, and plasticity on embryo and nymphal development in three mayfly (Hexagenia limbata) populations.

Date of Award

2004

Degree Type

Thesis

Degree Name

M.Sc.

Department

Biological Sciences

First Advisor

Corkum, L. D.

Keywords

Biology, Entomology.

Rights

CC BY-NC-ND 4.0

Abstract

Hexagenia limbata are burrowing mayflies that inhabit the Great Lakes and their connecting channels. The objectives of this study were to quantify the differences in seasonal adult emergence patterns between sexes and species. The final objective was to examine egg and nymphal development as a response to emergence date and temperature as well as the degree of plasticity displayed in their development. Adult mayflies were collected for 2 h at sunset from quadrates placed on land near dock lights at Colchester Harbour, Lake Erie, throughout the emergence period, June through August. In the laboratory I conducted a reciprocal transplant experiment in which survivorship and growth of organisms were examined at temperatures, representing early (20°C) and late (25°C) cohort development. Additionally, eggs from three populations (Lake Erie, Lake St. Clair, and Detroit River) and across the emergence period were reared in temperatures ranging from 16--28°C representing the natural range indicative of summer conditions. (Abstract shortened by UMI.)Dept. of Biological Sciences. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2004 .S535. Source: Masters Abstracts International, Volume: 43-05, page: 1664. Adviser: Lynda Corkum. Thesis (M.Sc.)--University of Windsor (Canada), 2004.