Agronomy and Horticulture Department


Date of this Version



Published in Botanical Gazette, Vol. 80, No. 2 (Oct., 1925), pp. 168-187. Copyright 1925 The University of Chicago Press. Used by permission.


In pursuance of an investigation of competition among certain shrubs (Rhus glabra, Corylus americana, Symphoricarpos spp.), and between these shrubs and Quercus macrocarpa, it became imperative, for a proper understanding of their behavior, to ascertain just how near the edge of their range they were growing. The station, which is located at Weeping Water, Nebraska, is on the Weeping Water River, a branch of the Missouri, I5 miles west of its mouth. This stream arises I 5 miles farther west, and in general its course parallels that of the Platte River about I 5 miles north. As is generally the case throughout eastern Nebraska, chaparral and woodland are con- fined to the vicinity of the stream courses. Rather than following the meandering stream throughout its length, it was decided to make transects at six or seven places, thus saving much time during a busy field season. The results were so interesting, and the method so satisfactory in vividly portraying distribution with change of habitat, that it was repeated on the Little Nemaha River, a neigh- boring stream of similar size and general direction of flow. Unlike the Weeping Water, which cuts a deep canyon, this stream has a broad flat floodplain.