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 subordinated 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.
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Animal Science and Zoology