An Ecological Survey of Isle Royale, Lake Superior
The book An Ecological Survey of Isle Royale, Lake Superior was written by author Gleason, Henry A. (Henry Allan), 1882-1975 Here you can read free online of An Ecological Survey of Isle Royale, Lake Superior book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is An Ecological Survey of Isle Royale, Lake Superior a good or bad book?
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The first is Packard's "Forest Insects," and the second is Felt's "Insects Affecting Park and Woodland Trees." A few suggestions are added as to methods of ecological collecting which may aid similar surveys. When the time for a suiwey is limited some system of ecologic trapping will prove of great advantage. Thus for aquatic beetles traps, like those planned by Needham, may be very useful; and still others are needed for the ground fauna and those frequenting trees and shrubs. Sweeping and bea...ting as usually prac- ticed, while securing many species, certainly produce little ecological data. It may be suggested that systems of trapping may be devised which will contribute much valuable ecological information. 160 MICHIGAN SURVEY, 1908. III. The Succession of Beetle Associations. The subject of succession is a relatively new one in entomology. The only other paper treating of beetle succession known to the writer is that by Shelford ('07). Our points of view are very similar but have been independently conceived.
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