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CELLULAR SLIME MOLDS OF SOUTHEAST ASIA. II. OCCURRENCE AND DISTRIBUTION
Author(s) -
Cavender James C.
Publication year - 1976
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1976.tb11786.x
Subject(s) - biology , tropics , southeast asia , serial dilution , ecology , tropical asia , slime mold , distribution (mathematics) , zoology , botany , medicine , ancient history , mathematical analysis , alternative medicine , mathematics , pathology , history
Soils were collected from thirteen tropical forest sites in the Southeast Asian countries of Singapore, Malaysia, Thailand, Indonesia, and the Philippines. Soil dilutions of 1:25 were prepared and cellular slime molds identified from clones which subsequently developed when 0.5 ml of the dilutions were spread on dilute hay infusion agar plates seeded with pregrown bacteria ( Escherichia coli #281). A total of 2998 clones representing sixteen species was produced by this procedure. Species were tabulated in order of ecological importance which was based on their frequency, relative density and presence throughout the area of study. Five species were very common and widespread. Four species were less common but occurred in about half the forest sites; the remaining seven species, including all but one of the new forms, were much more localized in distribution and were considered rare. These results were comparable to those obtained from studies in the American tropics. Diversity was similar and the important (common and widespread) species were the same in both areas. In general, those species that appeared to be endemic to either area belong among the rare species.