CONSTRUCTING WEB SUBJECT GATEWAYS USING DUBLIN CORE, THE RESOURCE DESCRIPTION FRAMEWORK AND TOPIC MAPS



Current and previous spatial distributions of oilseed rape fields influence the abundance and the body size of a solitary wild bee, Andrena cineraria, in permanent grasslands.

Wild bees are essential pollinators whose survival partly depends on the capacity of their environment Dog and Cat to offer a sufficient amount of nectar and pollen.Semi-natural habitats and mass-flowering crops such as oilseed rape provide abundant floristic resources for bees.The aim of this study was to evaluate the influences of the spatial dis

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