Beyond milkweed: Monarchs face habitat, nectar threats

ITHACA, N.Y. – In the face of scientific dogma that faults the population decline of monarch butterflies on a lack of milkweed, herbicides and genetically modified crops, a new Cornell University study casts wider blame: sparse autumnal nectar sources, weather and habitat fragmentation.     Media note: A video of the researcher explaining the findings is […]