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Relative Inclusive Fitness in the Social Wasp Polistes metricus
Robert A. Metcalf and Gregory S. Whitt
Behavioral Ecology and Sociobiology
Vol. 2, No. 4 (1977), pp. 353-360
Published by: Springer
Stable URL: http://www.jstor.org/stable/4599145
Page Count: 8
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1. The average between-foundress relatedness for foundresses of Polistes metricus was estimated as 0.63. Both foundresses were assumed to be derived from the same nest. 2. The relative probability of producing a successful nest for two foundress: one foundress nests was estimated as 1.38, SE=0.022. 3. The relative reproductive success observed for two foundress: one foundress nests was 2.25, SE=0.35. 4. The inclusive fitness of an α foundress relative to its expected fitness if it and the β foundress act alone is 1.83±0.57. The inclusive fitness of a β foundress relative to its expected fitness if it and the α foundress act alone is 1.39±0.44. 5. The β foundresses who may have the option of founding their own nests would not appear to decrease their inclusive fitness by becoming a subordinate foundress on the nest of a foundress from their own nest even though they give up a substantial portion of reproduction and increase their chance of death. Thus the results presented in this paper are in accord with those expected for kin selection theory.
Behavioral Ecology and Sociobiology © 1977 Springer