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Nested taxa-area curves for eastern United States floras

Rhodora

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Abstract

The slopes of log-log species-area curves have been studied extensively and found to be influenced by the range of areas under study. Two such studies of eastern United States floras have yielded species-area curve slopes which differ by more than 100%: 0.251 and 0.113. The first slope may be too steep because the flora of the world was included, and both may be too steep because noncontiguous areas were used. These two hypotheses were tested using a set of nested floras centered in Ohio and continuing up to the flora of the world. The results suggest that this set of eastern United States floras produces a log-log species-area curve with a slope of approximately 0.20 with the flora of the world excluded, and regardless of whether or not the floras are from nested areas. Genera- and family-area curves are less steep than species-area curves and show similar patterns. Taxa ratio curves also increase with area, with the species/family ratio showing the steepest slope.

Geospatial Extents

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Nested taxa-area curves for eastern United States floras
Series title:
Rhodora
Volume
99
Issue:
899
Year Published:
1997
Language:
English
Contributing office(s):
National Wildlife Health Center
Description:
p. 241-251
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Rhodora
First page:
241
Last page:
251
Number of Pages:
11
Country:
United States
State:
Ohio
Other Geospatial:
Hopewell Culture National Historic Park
Online Only (Y/N):
N
Additional Online Files(Y/N):
N