You are here: Home
/ Publication Information
Title: Environmental assessment hot spots of perforated forest in the eastern United States
Author: Riitters, Kurt H.; Coulston, John W.;
Source: Environmental Management Vol.35, No.4, p.483–492
Publication Series: Miscellaneous Publication
Description: National assessments of forest fragmentation satisfy international biodiversity conventions, but they do not identify specific places where ecological impacts are likely. In this article, we identify geographic concentrations (hot spots) of forest located near holes in otherwise intact forest canopies (perforated forest) in the eastern United States, and we describe the proximate causes in terms of the non-forest land-cover types contained in those hotspots. Perforated forest, defined as a 0.09-ha unit of forest that is located at the center of a 7.29-ha neighborhood containing 60–99% forest with relatively low connectivity, was mapped over the eastern United States by using land-cover maps with roads superimposed. Statistically significant (P<0.001) hot spots of high perforation rate (perforated area per unit area of forest) were then located by using as patial scan statistic. Hot spots were widely distributed and covered 20.4% of the total area of the 10 ecological provinces examined, but 50.1% of the total hot-spot area was concentrated in only two provinces. In the central part of the study area, more than 90% of the forest edge in hotspots was attributed to anthropogenic land-cover types, whereas in the northern and southern parts it was more often associated with seminatural land cover such as herbaceous wetlands.
Keywords: Ecological assessment, forest fragmentation, scan statistic, spatial pattern
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- You may send email to email@example.com to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
XML: View XML
Riitters, Kurt H.; Coulston, John W. 2005. Environmental assessment hot spots of perforated forest in the eastern United States. Environmental Management Vol.35, No.4, p.483–492
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility