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Loss of habitat, climate change contributing to declining of monarch butterflies population How much is dropped and what an Iowa State professor said people can do to help. By: KMTV Staff and last updated 2021-04-08 16:15:22-04 BELLEVUE, Neb. — Iowa State professor Steven Bradbury estimates the monarch butterfly population needs to increase about threefold from what it is now to maintain a sustainable population. Bradbury said the loss of habitat and climate change are contributing to the species decline. The official Wildlife Service has determined that the monarch could be listed as an endangered species, Bradbury said. Bradbury said, if the trends continue, the species might not go extinct, but the unique migration of the monarch will vanish.

United statesSteven bradburyNancy scottWildlife serviceIowa stateUpper midwestSouthern canadaNancy crewsஒன்றுபட்டது மாநிலங்களில்ஸ்டீவன் பிராட்பரிநான்சி ஸ்காட்வனவிலங்கு சேவைஐயுவா நிலைமேல் மிட்வெஸ்ட்தெற்கு கனடாநான்சி குழுக்கள்