Soil fungal effects on floral signals, rewards, and aboveground interactions in an alpine pollination web.

Premise Of The Study: Plants interact with above- and belowground organisms; the combined effects of these interactions determine plant fitness and trait evolution. To better understand the ecological and evolutionary implications of multispecies interactions, we explored linkages between soil fungi, pollinators, and floral larcenists in Polemonium viscosum (Polemoniaceae).

Methods: Using a fungicide, we experimentally reduced fungal colonization of krummholz and tundra P.