Pselaphid Beetles of an Illinois Prairie: The Population

Autor:	Stanley I. Auerbach, Marie Wilson, Orlando Park
Rok vydání:	1953
Předmět:	geography education.field_of_study geography.geographical_feature_category Ecology Fauna Population Population density Grassland Square meter Peninsula Distribution pattern Period (geology) education Ecology Evolution Behavior and Systematics
Zdroj:	Ecological Monographs. 23:1-15
ISSN:	1557-7015 0012-9615
DOI:	10.2307/1943517
Popis:	In a previous report (Park, Auerbach & Wilson 1949) Peacock Prairie, near Evanston, Cook County, Illinois, was described and its diversified fauna of pselaphid beetles discussed from a qualitative viewpoint. This fauna was found to contain a species (Reichenbachia suibsimilis Casey) that was known only from grassland, and its known distribution pattern appeared to support the Prairie Peninsula Hypothesis. Since this report three additional species of pselaphids have been collected. Two of these were either directly associated with prairie ant societies or were generally reported in the literature as myrmee)philous. In addition, two of the three species lend additional support to the Prairie Peninsula Hypothesis. The seasonal frequency of adult pselaphids in the upper three inches of prairie sod over a period of thirty-one months is discussed, chiefly with respect to population density per square meter. The prairie pselaphid fauna is separated into three seasonal population types. These data are reviewed with respect to two possible types of life cycle for these beetles.
Databáze:	OpenAIRE
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