Boyd retired in 1969, and has taught, written, and made films since then about entomology and the Pine Barrens. In this fourth book about the Pine Barrens, he synthesizes what he considers the most important information about their ecology, drawing from various sources. He departs from general practice by discussing all the abiotic factors first, then introduces biotic factors into the framework he has established. Annotation ©2009 Book News, Inc., Portland, OR (booknews.com)