Complete world map of tree diversity     2019/02/20 15:34

Researchers have succeeded in constructing, from scattered data, a world map of the diversity of tree species. Climate plays a central role for its global distribution; however, the number of species in a specific region also depends on the spatial scale of the observation, the researchers report. The new approach could help improve conservation.

Foreign bees monopolize prize resources in biodiversity hotspot     2019/02/20 15:33

New research revealed that foreign honey bees often account for more than 90 percent of pollinators observed visiting flowers in San Diego, considered a global biodiversity hotspot. The non-native bees have established robust feral populations and currently make up 75 percent of the region's observed pollinators. Their monopoly over the most abundantly blooming plant species may strongly affect the ecology and evolution of species that are foundational to the stability of the region's plant-pollinator interactions.

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