Publications

characterization of the goat feeding system among rural small holder farmers in the semi-arid regions of uganda.	goats (capra hircus) are widely distributed in africa and asia, and are important to the subsistence and economic livelihoods of many people in these areas. the goat feeding system among rural small holder farmers in buyende district (uganda) was characterised by determining the goat rearing practices, feed resources fed on by goats and availability of browse species mentioned by small holder farmers. data was gathered using ethnobotanical and ecological approaches. results from the ethnobotanic ...	2015	25932373
floral volatiles, pollinator sharing and diversification in the fig-wasp mutualism: insights from ficus natalensis, and its two wasp pollinators (south africa).	combining biogeographic, ecological, morphological, molecular and chemical data, we document departure from strict specialization in the fig-pollinating wasp mutualism. we show that the pollinating wasps elisabethiella stuckenbergi and elisabethiella socotrensis form a species complex of five lineages in east and southern africa. up to two morphologically distinct lineages were found to co-occur locally in the southern african region. wasps belonging to a single lineage were frequently the main ...	2011	22130605
pollen waste and unrelated traits in a fig-fig wasp symbiosis: a new behaviour suggesting a host shift.	in a fig-fig wasp symbiosis, we have discovered that male fig pollinators (alfonsiella fimbriata waterston) bite into the dehiscent anthers of ficus natalensis leprieuri miq., thus scattering the pollen grains throughout the syconium. female pollinators are the only ones to transfer pollen to conspecific trees, and collect pollen actively from the anthers only. thus, this male behaviour appears to be antagonistic to the pollination process. we compare different wasp pollinating behaviours betwee ...	2005	15714882
critical population size for fig/wasp mutualism in a seasonal environment: effect and evolution of the duration of female receptivity.	fig trees and their pollinating wasps form ca. 750 pairs of obligate mutualists, mainly in the tropics. survival of each partner depends on that of its associated species. here, we examine the possible outcome of such an interaction at small population size. using phenology data collected on ficus natalensis in gabon, we modelled wasp survival and the reproductive success of the trees according to the duration of receptivity of the tree, the amplitude of flowering seasonality, and the size of th ...	1995	28306993