Early nineteenth-century grasslands of the Midcontinent Plains

Auteur :
BROWN, D.A.

Description :
The A. examines ecological theory, existing maps, and explorer journals, with the support of data on contemporary grass patterns and interpretation of the grassland paleobotanical record built from anlyses of opal phytoliths that were contained in soils and lake and bog sediments. Time and place are fundamental elements in separating apparent discrepancies from dynamics in comparisons of grass maps, scattered explorer descriptions, and contemporary range-composition data.


Type de document :
Article de périodique

Source :
Annals of the Association of American Geographers, issn : 0004-5608, 1993, vol. 83, n°. 4, p. 589-612, Collation : Illustration, Références bibliographiques : 83 réf.

Date :
1993

Editeur :
Pays édition : Etats-Unis, Washington, DC, Association of American Geographers