Premium
An analysis of foundress group size in Ropalidia fasciata (Hymenoptera: Vespidae), with zero‐truncated distributions
Author(s) -
Itô Yosiaki,
Iwahashi Osamu
Publication year - 1987
Publication title -
population ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 59
eISSN - 1438-390X
pISSN - 1438-3896
DOI - 10.1007/bf02538884
Subject(s) - biology , vespidae , hymenoptera , negative binomial distribution , paper wasp , overdispersion , poisson distribution , statistics , zoology , ecology , mathematics
Summary Distribution patterns of foundress group size of Ropalidia fasciata did not fit to 0‐truncated Poisson series due to overdispersion. Six of seven distributions fitted to 0‐truncated negative binomial series, but, for most cases, neither Brass' moment method nor the maximum liklihood method could be used due to disproportionately high frequency of nests with single foundress. Existence of two kinds of foundresses was suggested.