> The context of bee restoration so far has been predominantly agricultural, likely because significant governmental funding exists for pollinator restoration on agricultural lands. Although the limited research on pollinator restoration in natural areas is regrettable from an ecological point of view, the agricultural emphasis is potentially a powerful approach given that agriculture currently accounts for 33% of global terrestrial land area. 

> In addition, the pollination services that bees can provide to crops increases their suitability for agricultural restoration programs and the appeal of such programs to farmers.  Pollinator restoration to date has focused on restoring floral resources within an agricultural context. The precedence given floral restorations is supported by evidence that large-scale declines in forage plants are associated with large-scale declines in pollinators, particularly for Bombus species, and by the studies of bee reproduction and floral resources, although nest site restoration may also be critical and merits further study.   

> The paucity of studies makes it clear that much more work is needed in order to understand the restoration ecology of this critical functional group. 

From: The conservation and restoration of wild bees, by Rachael Winfree

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