Climate, Herbicide May Doom 'Great Migration' of Monarch Butterflies

"...Over the past couple of years, the number of monarch butterflies that reach the Mexican sanctuaries has been declining, generating concern among rural communities that rely on spillovers of butterfly tourism activities, as well as entomologists, biologists, ecologists and monarch aficionados around the world. ..."


Source: ClimateWire, 03/29/2013


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