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Ecology

Environmental Sciences

1953

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Prairie Flora On The Missouri River Bluffs Of Western Iowa , John Barstow Morrill Jr. Jan 1953

Prairie Flora On The Missouri River Bluffs Of Western Iowa , John Barstow Morrill Jr.

Retrospective Theses and Dissertations

In western Iowa, from Sioux City south to Hamburg, the Missouri River flood plain is bordered by a series of abrupt loess bluffs. Because of the wide variability in exposure, because of the characteristic wind-deposited loess and because of the accessability to river migration routes, the bluffs possess a diverse, albeit characteristic flora. Investigations of localized or specialized ecological niches frequently yield not only floristic data but insight into historical development and migration movements of both individual species and floristic units. For instance, McLaughlin (1932) in his study of the sand barren flora of northwest Wisconsin was able to show ...