Bio-Economics Of Allocatable Pollination Services: Sequential Choices And Jointness In Sites

TThe site-chronological regime identifies a sequence of sites to which the pollination service is allocated during the annual biological cycle of the hive. Because each foraging site corresponds to a crop or a wild vegetation, each site-chronological regime identifies a sequence of crops or a cropping regime. The site-chronological regime integrates the space and time dimensions of the economic sequential choice of a farm with a mobile production bio-organism as in the case of migratory beekeeping. Jointness can arise between the sites pollinated in chronological sequence. A necessary condition for jointness in sites is that they are complementary, i.e. they can enter in sequence in the allocation programme of the pollination service. A sufficient condition for jointness in sites is that the revenue or the variable cost of a site change with the regime. Jointness in sites may arise from the revenues side or from the costs side or from both sides simultaneously. The revenue is a bio-economic source of jointness in sites because it derives from the different dynamics of the population of foraging bees in the site-chronological regimes.