Published in Evolution; international journal of organic evolution
Males and females are at a selective disadvantage relative to hermaphrodites (cosexuals) in species with a colonizing habit, as only cosexuals are able to establish new colonies on their own. The implications of this disadvantage are assessed by means of a computer model of metapopulation dynamics, in which individual colonies are established throu...
Published in Evolution; international journal of organic evolution
Eucalyptus regnans is a mass flowering, tall forest tree of southeastern Australia with a mixed mating system. A field trial containing randomized single tree plots of self, outcross, and naturally open-pollinated (OP) progenies of 13 parents from two natural populations was surveyed over 15 yr. Inbreeding depression in survival at 15 years was 67%...
The breeding system of the alpine shrub Rhododendron ferrugineum was studied at two sites of a population (site L and site H) in the French Alps. The aims were to estimate the degree of selfing and (or) outcrossing and to determine if floral traits (including floral morphology, pollen to ovule ratio, stigma receptivity) may be related to the breedi...
