Predicting occurrence of river otters by habitat on Mount Desert Island, Maine
作者： Leslie J. Dubuc , William B. Krohn , Ray B. Owen
DOI: 10.2307/3809355
关键词:
摘要: We developed a model predicting occurrence of river otters (Lutra canadensis) by comparing 19 watersheed used with 14 unused watersheds during 1985-87. Of 39 habitat variables initially measured, 4 provided good discrimination between and watershed. Otter use was negatively associated the proportion mixed hardwood-softwood stands in forested areas adjacent to waterways positively number beaver flowages, watershed length, average shoreline diversity. Our correctly classified 94% demonstrated 88% better classification than could be achieved chance alone
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