This research perspective focuses on three of the disciplinary areas that have engaged my interest as a professional biologist. My research first focused on life history evolution, but it expanded to include the evolution of viviparity, and developmental biology. My subjects are squamate reptiles, although I do hands-on research largely with lizards. A common theme of the research that I discuss here is the role of eggs and embryos in ecological and evolutionary studies and why that role may be critical to the resolution of important biological problems. In this perspective, I summarize highlights of my major research projects since 1971: 1) life history evolution of West Indian island and mainland Anolis lizards; 2) long-term studies on the demography and egg survival of a small, r-selected Panamanian anole; 3) ecological and physiological studies on the transition between oviparity and viviparity in Sceloporus; 4) costs and benefits of the novel rigid-shelled egg of gekkotan lizards; and 5) embryonic adaptations to low oxygen availability in rigid-shelled eggs of gekkotan lizards. I put these projects in the context of my own developmental trajectory as a biologist; my research has shifted from population biology to embryonic development without breaking the connection between these seemingly disparate disciplines.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 52 • No. 3