Download or read book Factors Influencing the Density and Distribution of Breeding Waterfowl in North Central Montana written by Sean Patrick Fields and published by . This book was released on 2011 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continental waterfowl population declines in the early 1980s led to the development and implementation of the North American Waterfowl Management Plan. The plan identified wetland and grassland losses in the Prairie Pothole Region (PPR) of Canada and the United States as the major causes of low continental duck populations. North-central Montana is the only remaining PPR area in the United States without a ground-based annual survey to monitor breeding duck populations and quantify breeding duck habitat. The purpose of this study was to establish an annual breeding duck survey in north-central Montana to 1) develop species-specific breeding pair predictive models, and 2) apply the models to estimate the density and distribution of breeding ducks and identify priority areas for conservation actions. 1969 indicated breeding duck pairs were observed on approximately 700 wetland basins in 2008 and 2009. A competing model analysis was used to identify local- and landscape-scale habitat characteristics to predict breeding duck pairs on wetland basins. The five most commonly observed species were modeled separately; those species were mallard (Anas platyrhynchos), northern pintails (A. acuta), gadwall (A. strepera), northern shoveler (A. clypeata) and blue-winged teal (A. discors). At the local scale, wetland basin area, the square root transformation of wetland basin area and wetland basin class were important predictors for all species. Northern pintail, gadwall and blue-winged teal exhibited a strong location effect, occurring more in the northern and eastern portions of the study area. At the landscape scale, the proportion of agricultural lands surrounding a sample basin was associated with the greater abundance of all species. Northern pintail and blue-winged teal breeding pair abundance increased when the proportion of seasonal and semipermanent basin wetland surface area in the landscape around sample basin decreased. Results from this study provide land managers with initial information on where breeding waterfowl are settling across the PPR landscape of north-central Montana. The continuation of this research for several more breeding seasons will enable conservation partners to efficiently target important breeding waterfowl habitat for conservation actions.

Download or read book Duck Population Responses to Water Development in North Central Montana written by Shawn Roy Bayless and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent studies indicate waterfowl production per unit of water area on western rangelands exceeded that found on the prairie Pothole Region. However, production per km2 is far less on these western rangelands because of low pond numbers. This study was initiated to compare breeding populations and productivity between rangelands with relatively high and low numbers of stockponds. Breeding pair populations and waterfowl broods were assessed on 3 areas differing in pond densities in South Phillips County, Montana during 1990 and 1991. Pond physical parameters were measured and related to waterfowl production. Numbers of pairs, productivity, and numbers of young produced were positively correlated with pond density. Retention type ponds ranked highest in the above factors, due primarily to increased water area, shoreline length, and shoreline development indices associated with this pond type. Nest losses to predation were not significant. Other factors influencing waterfowl production i.

Download or read book Resource Publication written by and published by . This book was released on 1965 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ecology and Management of Breeding Waterfowl written by and published by U of Minnesota Press. This book was released on 1992 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Ecology of the Mallard written by United States Department of the Interior. U.S. Fish and Wildlife Service. Bureau of Sport Fisheries and Wildlife, author and published by . This book was released on 1975 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1954 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Resource Publication United States Bureau of Sport Fisheries and Wildlife written by and published by . This book was released on 1973 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Ecology of the Mallard written by Richard S. Pospahala and published by . This book was released on 1974 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Ecology of the Mallard written by and published by . This book was released on 1972 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Waterfowl Production on Three Age classes of Stock Ponds in Northcentral Montana written by Michael Scott Hudson and published by . This book was released on 1980 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Journal of Zoology written by and published by . This book was released on 2004 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wetland Vegetation Environmental Factors and Their Interaction in Strip Mine Ponds Stockdams and Natural Wetlands written by Rich Olson and published by . This book was released on 1981 with total page 24 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 1980 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Zoological Record written by and published by . This book was released on with total page 1728 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Research written by and published by . This book was released on 2005 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Prairie Basin Wetlands of the Dakotas written by Harold A. Kantrud and published by . This book was released on 1989 with total page 124 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 1979 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt: