Here are some of her most notable works:
* An Introduction to Mathematical Ecology (1969): A foundational text that introduced mathematical methods to the study of ecological systems. It has been a cornerstone of ecological education for decades.
* Ecological Diversity (1975): A comprehensive analysis of the concept of ecological diversity, exploring different indices and their implications for understanding ecological communities. This work cemented her reputation as a leading expert in the field.
* Biogeography: An Introduction (1979): An overview of the principles and patterns of geographical distribution of organisms.
* After the Ice Age: The Return of Life to Glaciated North America (1991): An engaging and accessible account of the ecological recovery of North America following the last glacial period.
Pielou also contributed numerous articles and papers to scientific journals, further solidifying her contributions to the field of ecology. Her work continues to be influential and relevant in contemporary ecological research.