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RECENT CHANGES IN THE INTRODUCED POPULATION OF THE FIRE ANT SOLENOPSIS SAEVISSIMA (FR. SMITH)
Author(s) -
Wilson E. O.,
Brown W. L.
Publication year - 1958
Publication title -
evolution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.84
H-Index - 199
eISSN - 1558-5646
pISSN - 0014-3820
DOI - 10.1111/j.1558-5646.1958.tb02947.x
Subject(s) - biology , fire ant , population , zoology , demography , hymenoptera , sociology
OF THE POPULATION spread of the introduced population since then. In 1956 and 1957 the present authors returned to the infested area to carryon further ecological work and to determine whether significant shifts in the frequencies of the color phases have occurred since the time of Wilson's original study in 1949. Additional, more limited studies were made at this time on the effects of competitive pressure from S. saevissima on the native species of Solenopsis. The results of this recent work form the material of the present paper. INTRODUCTION