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">Estimating community composition by analysis of environmental neighborhoods.</p> <p class="AbstractAuthor">E. B. Peterson and B. McCune, Oregon State University, Corvallis, OR 97331 USA.</p> <p class="AbstractText">Models of community composition are useful to ecologists and silviculturalists in many ways. Species inventories can be made easier if a list of expected species can be made available. Examining biogeographical patterns is aided by interpolation of species distributions between known sites. Decisions on forest management options under modern forest plans often require models of species patterns across a landscape. Similarly, management recommendations for rare or endangered species often rely on models of species distributions. We developed a simple method for modeling the occurrence of species in given forest stands (target stands) according to climatic and stand characters. The model is based on a database of stands with known environmental characters and species compositions. These stands form points in an n-dimensional environmental space defined by the environmental variables. Species presence is estimated from the proportion of its occurrence in sites neighboring the target stand in the environmental space. Software has been developed for the use of this method. Communities can be estimated for single stands or for stands across a landscape by linking to GIS. Pin-lichens (Caliciales) will be used to demonstrate the modeling concept.</p> <p class="AbstractMeeting">Presented at the 1999 meeting of the <a href="http://www.esa.org">Ecological Society of America</a></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>