Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

The Abundance, Distribution and Edge Associations of Six Non-Indigenous, Harmful Plants across North Carolina

Robert W. Merriam
The Journal of the Torrey Botanical Society
Vol. 130, No. 4 (Oct. - Dec., 2003), pp. 283-291
Published by: Torrey Botanical Society
DOI: 10.2307/3557546
Stable URL: http://www.jstor.org/stable/3557546
Page Count: 9
  • Read Online (Free)
  • Download ($10.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Abundance, Distribution and Edge Associations of Six Non-Indigenous, Harmful Plants across North Carolina
Preview not available

Abstract

Six species of non-indigenous, harmful plants were surveyed throughout North Carolina: Lonicera japonica, Rosa multiflora, Pueraria lobata, Ligustrum sinense, Ailanthus altissima, and Celastrus orbiculatus. On 417 randomly selected sites across the state, their occurrence was measured as linear presence along the edges of interstate highways, other federal highways, rivers, streams, and railroad and powerline rights-of-way. Their abundance was expressed as the percent of occurrence in the total length of measured transects. L. japonica occupied an average of 25.9% of all edge types, highest in the piedmont but fairly evenly distributed on edge types. L. sinense occupied an average of 7.5% of all edge types, highest along rivers and streams. R. multiflora occupied an average of 4.8% of all edges, highest along rivers and streams of the mountainous west. P. lobata occupied 2.4% of all edges, fairly evenly distributed on edge types. A. altissima occupied 1.7% of edges, especially high along railroad rights-of-way of the piedmont. C. orbiculatus occupied 0.6% of all edge types, highest along railroads of the mountains. Based on rates of accumulation of specimens in university herbaria, their rate of spread across the state was calculated and expressed as percent increase in counties reporting occurrences per year: R. multiflora = 8.63; P. lobata = 7.25; L. sinense = 5.38; A. altissima = 4.76; C. orbiculatus = 2.94. (Rate for Lonicera was probably highest but could not be calculated.)

Page Thumbnails

  • Thumbnail: Page 
283
    283
  • Thumbnail: Page 
284
    284
  • Thumbnail: Page 
285
    285
  • Thumbnail: Page 
286
    286
  • Thumbnail: Page 
287
    287
  • Thumbnail: Page 
288
    288
  • Thumbnail: Page 
289
    289
  • Thumbnail: Page 
290
    290
  • Thumbnail: Page 
291
    291