The Postglacial Phytogeography of the Iowan Lobe

Authors

L. J. EilersFollow

Document Type

Research

Abstract

The Iowan lobe of the Wisconsin glaciation is located in northeastern Iowa. Evidence is summarized which pertains to the migrations of the regional vegetation following the Wisconsin glaciations. The most recent climatic fluctuation to influence the distribution of the present flora was the Hypsithermal interval. The present distributions of several species are discussed in relation to the postglacial history of the flora. Eleven distribution maps of representative species are included. Most of the distribution patterns can be attributed to factors other than continuing postglacial migration. It appears that these plant distributions are primarily a function of the distribution of available habitats. Most species appear to have had sufficient time since the Hypsithermal interval to complete their migration into the Iowan lobe and to become well established. The need for additional paleobotanical and phytogeographic research in Iowa is stressed.

Publication Date

1965

Journal Title

Proceedings of the Iowa Academy of Science

Volume

72

Issue

1

First Page

84

Last Page

98

Copyright

©1965 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Eilers, L. J. (1965) "The Postglacial Phytogeography of the Iowan Lobe," Proceedings of the Iowa Academy of Science, 72(1), 84-98.
Available at: https://scholarworks.uni.edu/pias/vol72/iss1/16