Fig 2. The predicted geometric mean number (± S.E.) of (a) alien balsam (Impatiens glandulifera), (b) conspecific and (c) heterospecific pollen grains on dry, wet and semidry stigmas in invaded and non-invaded habitats using generalized linear mixed-effects models.

The only significant pairwise difference, based on posteriori tests, was found between dry stigmas in invaded and non-invaded habitats.