Download or read book A Critical Review of Michigan s Spring Waterfowl Survey written by Nathaniel Thomas Yost and published by . This book was released on 2020 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: To monitor the status of waterfowl populations, the Michigan Department of Natural Resources (MDNR) began surveying abundance of breeding ducks and geese in 1991 and developed goals for waterfowl population and habitat management tied to the spring waterfowl survey. The spring waterfowl survey required flying a series of fixed-width transects using fixed-wing aircraft to estimate statewide abundance of Canada geese (Branta canadensis), mallards (Anas platyrhynchos), mute swans (Cygnus olor), and sandhill cranes (Grus canadensis) among others. To get consistent results, standard operating procedures (SOP) have been implemented and maintained across the years. Since observers did not see all birds from the fixed-wing aircraft, estimation of waterfowl abundance required surveying a portion of transects with helicopters to establish visibility correction factors (VCF). MDNR used the VCF to adjust fixed-wing estimates assuming observers saw all birds in transects flown with helicopters. To potentially improve precision and reduce costs, we developed alternate VCFs and aerial survey designs to understand how the accuracy and precision of the waterfowl population estimate changed from the existing SOP methodology. To meet MDNR standards, we considered alternate population estimates that produced a coefficient of variation (CV) of less than 20% to be acceptable and worth consideration. We found comparable population estimates and CVs from eleven alternate VCFs and three alternate aerial survey designs compared to the SOP.
Download or read book 1969 Spring Survey of Waterfowl Migration in Michigan written by Edward J. Mikula and published by . This book was released on 1969 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waterfowl populations and breeding conditions written by and published by . This book was released on 1955 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water resources Investigations Report written by and published by . This book was released on 1999 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Databases for Environmental Analysis written by and published by . This book was released on 1992 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summary of Reservoir Sedimentation Surveys Made in the United States Through 1950 written by United States. Army. Corps of Engineers and published by . This book was released on 1953 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summary of Reservoir Sediment Deposition Surveys Made in the United States Through 1965 written by and published by . This book was released on 1969 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data from known reliable reservoir sedimentation surveys made in the United States through 1965 are summarized in this bulletin. Additional data from surveys made after 1965 are included for a few reservoirs.
Download or read book Waterfowl Populations and Breeding Conditions Summer 1954 written by U.S. Fish and Wildlife Service and published by . This book was released on 1955 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Databases for Environmental Analysis written by Statistics Canada. National Accounts and Environment Division and published by . This book was released on 1992 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summary of Reservoir Sediment Deposition Surveys Made in the United States Through 1970 written by and published by . This book was released on 1973 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data from known reliable reservoir sedimentation surveys made in the United States through 1970 are summarized in this bulletin. Additional data from surveys made after 1965 are included for a few reservoirs.
Download or read book Special Scientific Report wildlife written by and published by . This book was released on with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waterfowl in Iowa written by Jack W. Musgrove and published by Hamlin Press. This book was released on 2011-07-01 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.
Download or read book Water resources related Information for the Oneida Reservation and Vicinity Wisconsin written by David A. Saad and published by . This book was released on 1999 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summary of Pittman Robertson Research and Development Reports written by and published by . This book was released on 1968-10 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1986 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report RM written by and published by . This book was released on 1993 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
