•  
  •  
 

Document Type

Article

Publication Date

1962

Keywords

Plants; Botanical surveys

Abstract

Plants are seldom distributed uniformly, if an area of much size is considered, since even the smallest environmental differences may affect the success of some species. This study is an attempt to correlate the nonrandom distribution of plants in one prairie area with one measurable environmental factor, namely waterholding capacity. The well known phenomenon of zonation concerns a marked change in environment and therefore in species, and, as seems quite obvious, therefore also a change in plant communities. What might seem more obvious than real, however, is the boundary between any two of these so-called communities. It is possible that one cause of "contagious" distribution might be related to local differences in microhabitat, or in other words, a sort of patchwork of the zonation concept. Cain and Evans (1952) list differences in reproduction as one possible cause of species distribution within a stand. Evans and Dahl (1955) concluded that topographic variability was primarily responsible for the major distribution pattern of vegetation in a 50-year-old abandoned field. The effect of these minor topographic differences on soil moisture was inferred but not determined.

First Page

38

Last Page

43

Primo Type

Article

Included in

Botany Commons

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.