Along with increasing concerns about the extinction of different animal species, there has been increased interest in monitoring the fate of plant species, particularly those of various trees. Drawing on a partnership between Flora & Fauna International and the UNEP World Conservation Monitoring Centre, the Global Trees Campaign Web site serves as an online conduit for information about endangered...

On this definitive site for researchers in the field of dendrochronology, Henri Grissino-Mayer (formerly of Valdosta State University, Georgia) has a useful and practical list of tools for conducting field and laboratory research. In addition to a hypertext-linked list, the site includes helpful tips to help make the task of tree-ring dating easier.

From the Illinois Department of Natural Resources, this site offers ten great lesson plans for teachers of elementary grades to use in their classes. The site is divided into two parts, Student's Guide and Teacher's Guide, and all necessary resources are provided for all of the lessons. Also available is a tree-related glossary for the students. The only link not working currently is the Trees of...

Created and maintained by Penn State University Agricultural Services, this guide is a resource for "people who wish to produce fruit on a small scale (on one acre or less) and who are not legally licensed to use pesticides." The guide discusses topics such as getting started, pruning and training fruit trees, pests and pesticides, and controlling wildlife damage. It also includes individual...