Tree species associations of Pinus echinata mill. over a large-scale sampling regime on the interior highlands of Arkansas

This article is part of a larger document. View the larger document here.

  • Authors: Rosson, James F., Jr.
  • Publication Year: 2007
  • Publication Series: General Technical Report - Proceedings
  • Source: In: Kabrick, John M.; Dey, Daniel C.; Gwaze, David, eds. Shortleaf pine restoration and ecology in the Ozarks: proceedings of a symposium; 2006 November 7-9; Springfield, MO. Gen. Tech. Rep. NRS-P-15. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 76-87.

Abstract

The Interior Highlands physiographic province of Arkansas is considered the ecological center of the geographic distribution of shortleaf pine (Pinus echinata Mill.). I used data from the U.S. Forest Service, Forest Inventory and Analysis (FIA) program to identify the major tree species associates of P. echinata across this 66,700-km2 landscape. Across the region, 41,207 km2 were covered by timberland. The study population was represented by 434 relatively undisturbed upland sample plots from the 1995 forest survey of Arkansas. P. echinata ≥12.7 cm in diameter at breast height (DBH) occurred on 211 of these sample plots. Additionally, it ranked first in basal area on 119 plots, second on 39 plots, and third on 19 plots. Where P. echinata was dominant, stand basal area averaged 23.1 m2 ha-1 (±0.57 SEM). I used chi-square to test for degree of association between the stand dominants and to test for positive and negative associations. There was a positive association between P. echinata and Quercus alba L. (X2 = 0.490; 1df). In contrast, there was a negative association between P. echinata and Q. velutina Lam. (X2 = 15.571; 1df). These results demonstrate that the chisquare test of association is effective even on the larger scales of sampling where lack of sample homogeneity may sometimes complicate analysis. Such quantitative tests for species associations offer meaningful insights into P. echinata communities at the landscape scale of sampling.

  • Citation: Rosson, James F., Jr. 2007. Tree species associations of Pinus echinata mill. over a large-scale sampling regime on the interior highlands of Arkansas. In: Kabrick, John M.; Dey, Daniel C.; Gwaze, David, eds. Shortleaf pine restoration and ecology in the Ozarks: proceedings of a symposium; 2006 November 7-9; Springfield, MO. Gen. Tech. Rep. NRS-P-15. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 76-87.
  • Posted Date: October 15, 2007
  • Modified Date: October 15, 2007
  • Print Publications Are No Longer Available

    In an ongoing effort to be fiscally responsible, the Southern Research Station (SRS) will no longer produce and distribute hard copies of our publications. Many SRS publications are available at cost via the Government Printing Office (GPO). Electronic versions of publications may be downloaded, printed, and distributed.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • To view this article, download the latest version of Adobe Acrobat Reader.