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Document Type

Research

Keywords

fauna, Middle Little Sioux River; Iowa species list

Abstract

A species list of macroscopic animals is compiled for the middle portion of the Little Sioux River, Iowa. These are tabulated along with published data from regions of the river above and below. The Little Sioux meanders throughout a valley of largely agricultural landscape; it has a relatively high silt load. Chemical differences are not great; some effects of municipal effluent are noted. The number of species is relatively constant (in the 40-60 range); numbers in the uppermost, intermittent stretches and the lowermost, channelized segment are lower (30- 40). Only about 20% of the species are ubiquitous; trends of diversity and distribution are noted in the invertebrates and fishes.

Publication Date

September 1973

Journal Title

Proceedings of the Iowa Academy of Science

Volume

80

Issue

3

First Page

111

Last Page

116

Copyright

Proceedings of the Iowa Academy of Science

Language

EN

File Format

application/pdf

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