Landscape Ecology - Eric B. Peterson <link rel="stylesheet" href="../styles.css" /> </head> <body> <table width="98%"> <tr> <td class="TitleSide"></td> <td class="TitleMain"> <br /> <p class="title">Landscape Ecology - Eric B. Peterson</p> <br /> </td> </tr> <tr> <td class="MainSide"></td> <td class="MainMain"> <p class="PageDescription"><u>Abstract of oral or poster presentation:</u></p> <p class="AbstractTitle">EPIPHYTIC MACROLICHENS IN MANAGED FORESTS OF WESTERN OREGON.</p> <p class="AbstractAuthor">ERIC B. PETERSON. Department of Botany and Plant Pathology, Oregon State University, Corvallis OR 97331.</p> <p class="AbstractText">Biodiversity patterns of young, managed stands are of concern to forest managers. I assessed the diversity of epiphytic macrolichen communities with large plots (0.38 ha) in second-growth stands without thinning, second-growth with thinning, old-growth stands, and nearby diversity hot spots. Second-growth stands were of rotation age, 50-110 years old and thinning had occurred 10-25 years previously. All four treatments were examined in each of nine blocks in the Oregon Coast Range and eight blocks in the Oregon Cascades. Species richness did not differ among treatments with statistical significance (1-way ANOVA) despite strong differences in species composition (MRPP, p<.0001). This suggests that in some cases species composition might be more relevant to forest conditions and management concerns than measures of diversity. Ordination of the Coast Range plots with NMS revealed distinct communities in old-growth and hot-spot plots. The communities of the unthinned and thinned plots were similar, but the thinned stand communities showed a shift away from the unthinned communities. This shift is toward the old-growth communities on the first ordination axis and away from the old-growth communities on the second ordination axis. An increase in diversity and abundance of old-growth associated alectorioid species in thinned stands may account for the shift toward old growth.</p> <p class="AbstractMeeting">Presented at the 1997 O.S.U. Graduate Student Conference.</p> <br /> <font size="-1"><a href="http://www.landscapeecology.com">HOME</a> : <a href="http://www.landscapeecology.com/Info/">Info</a></font> <br /> <br /> </td> </tr> </table> <hr width="97%" /> <font="-1"><a href="http://www.landscapeecology.com">LandscapeEcology.com</a> - contact the webmaster, Eric Peterson, <a href="http://non-parametric.com/contact.php?return=http://www.landscapeecology.com">here</a>. </body> </html>