01509nam 2200397 450 991071521030332120210407152720.0(CKB)5470000002509925(OCoLC)1236214111(EXLCZ)99547000000250992520210205d2021 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierSummary of available data from the monarch overwintering colonies in Central Mexico, 1976-1991 /by Erin R. Zylstra [and three others] ; prepared in cooperation with the U.S. Fish and Wildlife ServiceReston, Virginia :U.S. Department of the Interior, U.S. Geological Survey,2021.1 online resource (iii, 10 pages) color illustrationsOpen-file report ;2020-1150Includes bibliographical references (page 10).Monarch butterflyMexicoButterfliesMonitoringMexicoButterfliesMigrationMexicoMonarch butterflyButterfliesMonitoringButterfliesMigrationZylstra Erin R.1417114Geological Survey (U.S.),U.S. Fish and Wildlife Service.GPOGPOBOOK9910715210303321Summary of available data from the monarch overwintering colonies in Central Mexico, 1976-19913524497UNINA