A comparative study of the standing crops of the mat-edge fauna of three bog lakes

TitleA comparative study of the standing crops of the mat-edge fauna of three bog lakes
Publication TypeJournal Article
Year of Publication1959
AuthorsEriksen CHedman
JournalPapers of the Michigan Academy of Science, Arts and Letters
Volume44
Pagination97-110
KeywordsWATER CHEMISTRY
Abstract

1. I studied three bog lakes in northern, lower Michigan (near Douglas Lake) for two summer months in 1956. 2. As expected, population numbers varied with each bog, and sequential collections showed the bell-shaped curve of population growth and decline. 3. Odonates comprised about 75% of the animal fauna of the mat margins; tadpoles, hemipterans, and coleopterans comprised the other significant groups. 4. These bogs are exceedingly more productive than previous research would lead one to believe. Production of numbers (as measured by standing crop) is correlated with conditions found. The type and physical arrangement of the mat margin, commbined with the concentration of planktonic forms at mat edge, seem the most influential determinants of productivity.