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Transactions of the Nebraska Academy of Sciences and Affiliated Societies
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Full-Text Articles in Population Biology
Sandhill Crane Abundance In Nebraska During Spring Migration: Making Sense Of Multiple Data Points, Andrew J. Caven, Dana M. Varner, Jeff Drahota
Sandhill Crane Abundance In Nebraska During Spring Migration: Making Sense Of Multiple Data Points, Andrew J. Caven, Dana M. Varner, Jeff Drahota
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
The USFWS conducts an annual one-day aerial survey of the North and Central Platte River Valleys, generally on the fourth Tuesday in March, to estimate the abundance of the midcontinent Sandhill Crane population. However, these abundance indices demonstrate unrealistic inter-annual variation as a result of deviations in migration chronology and other factors. Additional research efforts have been undertaken within the region to estimate Sandhill Crane abundance over time and space but these projects generally seek to answer unique questions, employ differing survey methods, and cover overlapping yet distinct survey areas. Despite the wealth of information there remains significant uncertainty regarding …