Download or read book Monitoring Emperor Goose Populations by Aerial Survey Counts and Fall Age Ratio written by William I. Butler and published by . This book was released on 1995 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: From 1985 to 1994 flocks of emperor goose (Chen canagica) were photographed during fall migration at lagoons along the north side of the Alaska Peninsula to monitor annual production, population size, and average survival rate.

Download or read book Monitoring Emperor Goose Populations by Aerial Counts and Fall Age Ratio written by Timothy J. Tiplady and published by . This book was released on 1997 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flocks of emperor goose (Chen canagica) were photographed during fall migration at lagoons along the north side of the Alaska Peninsula to monitor annual production, population size, and average survival rate.

Download or read book Monitoring Emperor Goose Populations by Aerial Counts and Fall Age Ratio written by Gregory R. Balogh and published by . This book was released on 1995 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flocks of emperor goose (Chen canagica) were photographed during fall migration at lagoons along the north side of the Alaska Peninsula to monitor annual production, population size, and average survival rate.

Download or read book Monitoring Emperor Goose Populations by Aerial Counts and Fall Age Ratio Fall 2004 written by Paul D. Anderson and published by . This book was released on 2005 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flocks of emperor goose (Chen canagica) were photographed during fall migration at lagoons along the north side of the Alaska Peninsula to monitor annual production, population size, and average survival rate.

Download or read book Monitoring Emperor Goose Populations by Aerial Counts and Fall Age Ratio Fall 2003 written by Paul D. Anderson and published by . This book was released on 2004 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flocks of emperor goose (Chen canagica) were photographed during 2003 fall migration at lagoons along the north side of the Alaska Peninsula to monitor annual production, population size, and average survival rate.

Download or read book Monitoring the Emperor Goose Population by Aerial Counts and Fall Age Ratio Fall 2006 written by Christian P. Dau and published by . This book was released on 2006 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Flocks of emperor geese (Chen canagica) staging during fall migration in estuaries along the north side of the Alaska Peninsula were photographed for the 22nd consecutive year to obtain an estimate of the proportion of juveniles in the fall population"--Leaf 2.

Download or read book The North American Geese written by Paul Johnsgard and published by Lulu.com. This book was released on 2016-08-23 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: The eight currently recognized species of North American geese are part of a familiar group of birds collectively called waterfowl, all of which are smaller than swans and generally larger than ducks. They include the most popular of our aquatic gamebirds, with several million shot each year by sport hunters. Our two most abundant waterfowl, the Canada goose and snow goose, have populations collectively totaling about 15 million individuals. Like swans, the lifelong pairbonding of geese, their familial care, and prolonged social attachment to their offspring are legendary. Their seasonal migratory flights sometimes span thousands of miles, and the sight of their long, wavering flight formations are as much the symbols of seasonal change as are the spring songs of cardinals or the appearance of autumnal leaf colors. This book describes each species' geographic range and subspecies, its identification traits, weights and measurements, and criteria for its age and sex determination. Ecological and behavioral information includes each species' breeding and wintering habitats, its foods and foraging behavior, its local and long distance movements, and its relationships with other species. Reproductive information includes each species' age of maturity, pair-bond pattern, pair-forming behaviors, usual clutch sizes and incubation periods, brooding behavior, and postbreeding behavior. Mortality sources and rates of egg, young, and adult losses are also summarized, and each species' past and current North American populations are estimated. In addition to a text of nearly 60,000 words, the book includes 8 maps, 21 line drawings, and 28 photographs by the author, as well as more than 700 literature citations.

Download or read book Ducks Geese and Swans of North America written by Guy A. Baldassarre and published by JHU Press. This book was released on 2014 with total page 1183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ducks, Geese, and Swans of North America has been hailed as a classic since the first edition was published in 1942. A must-have for professional biologists, birders, waterfowl hunters, decoy collectors, and wildlife managers, this fully revised and updated edition provides definitive information on the continent's forty-six species. Maps of both winter and breeding ranges are presented with images by top waterfowl photographers and the acclaimed original artwork of Robert W. (Bob) Hines. Originally authored by F. H. Kortright and later revised by Frank Bellrose, this latest edition, which has been meticulously updated by renowned waterfowl biologist Guy Baldassarre, continues the legacy of esteemed authors. Each species account contains in-depth sections on: - identification - distribution - migration behavior - habitat - population status - breeding biology - rearing of young - recruitment and survival - food habits and feeding ecology - molts and plumages - conservation and management To facilitate identification, the species accounts also include detailed illustrations of wings. An appendix contains comparative illustrations of ducklings, goslings, and cygnets. Guy Baldassarre has hit the target. His remake of the Kortright/Bellrose classic provides good biological descriptions, wonderful photographs and illustrations, and easy-to-understand information about waterfowl. I would encourage every hunter and enthusiast to have these books as an educational guide to waterfowl and their needs.--H. Dale Hall, CEO, Ducks Unlimited, Inc. When, as an eleven-year-old in 1942, I read F. H. Kortright's first edition of this book, it altered the trajectory of my life. Every subsequent edition, including this latest update by Guy Baldassarre, has improved the landmark reference. I can't imagine that anyone interested in waterfowl or wetlands can live without this indispensable book.--Paul A. Johnsgard, University of Nebraska-Lincoln Creating a brand-new version of such a timeless and previously revised classic is a risky venture indeed, but nobody could be better suited for this monumental task than Guy Baldassarre. He has created a stunning new classic, at once magnificent in its visual appeal and truly comprehensive in its scientific breadth and depth. Hats off to Guy for dedicating himself to this project with such obvious passion, patience, and skill. This book absolutely belongs on the shelf or coffee table of anyone who has ever marveled at waterfowl, whether through their binoculars or from inside the duck blind.--John W. Fitzpatrick, Cornell Laboratory of Ornithology Guy Baldassarre was a professor of wildlife ecology at the State University of New York College of Environmental Science and Forestry in Syracuse until his death in 2012. He is the coauthor of the textbook, Waterfowl Ecology and Management. Johns Hopkins University Press Baltimore www.press.jhu.edu This product consists of two volumes, packaged in a slipcase along with a CD containing references and additional maps. ISBN 13: 978-1-4214-0751-7 ISBN 10: 1-4214-0751-5 [Use barcode for ISBN 13: 978-1-4214-0751-7] Cover design: Cover illustration: Northern Pintail. GaryKramer.net Author photo: HOLD SPACE FOR AUTHOR PHOTO X: \marketing\author photos --John W. Fitzpatrick, Cornell Lab of Ornithology "Midwest Book Review"

Download or read book Fall Population Survey of Emperor Geese Chen Canagica Southwest Coastal Alaska October 2 5 1987 written by Rodney J. King and published by . This book was released on 1987 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an aerial survey emperor geese were counted at coastal habitats from Bethel to Unimak Island on the north side of the Alaska Peninsula and from Cold Bay to Puale Bay on the south side of the peninsula. Table 2 on p. [9] contains survey segment counts of other birds and mammals that were observed.

Download or read book Bay Resource Management Plan written by and published by . This book was released on 2007 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Survival and Brood Rearing Ecology of Emperor Geese written by Joel A. Schmutz and published by . This book was released on 2000 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Emperor Geese (Chen canagica) breed on the Yukon-Kuskokwim Delta in an area inhabited by three other goose species. Whereas populations of other geese increased since the mid 1980s, Emperor Goose numbers remained low. Because survival and habitat selection by broods of Emeperor Geese had not been studied previously and numbers of predatory Glaucous Gulls (Larus hyperboreus) had recently increased, I studied brood rearing ecology of Emperor Geese during 1993-1996 to assess whether this seasonal period could be limiting population growth. Survival of goslings to 30 days varied among years from 0.32 to 0.70 and was primarily influenced by mortality during the first five days after hatch. Other goose species with similar rates of gosling survival are increasing rapidly. Survival of Emperor Goose goslings was lowest in 1994, when unusually heavy rainfall occurred during early brood rearing. Using a long-term data set from Izembek National Wildlife Refuge, sizes of families in fall (n=23 years) were related to rainfall during early brood rearing. Gosling survival was lower and gull disturbance of broods greater in 1993-1994 than in 1995-1996. Although goslings wer commonly consumed by Glaucous Gulls, gull diets during 1993 were similar to those observed in the 1970s. Across a broad scale, broods of Emperor Geese (n=56) strongly selected habitats dominated by Carex subspathaceae, Carex ramenskii, and unvegetated areas interspersed among these forage species, as determined from telemetry. These selected habitats comprised one-third of all available habitat. Habitat selection by the composite goose community (dominated by Cackling Canada Geese [Branta canadensis minima]) was assessed by feces collections and differed substantially from that of Emperor Geese. Broods of Emperor Geese spent more time feeding during 1993-1996 than during an earlier study in 1985-1986. During 1994-1996, feeding rates of gosling and adult females was related more to total goose density than to Emperor Goose density. Although Cackling Canada Geese exhibited strongest selection of other habitats, their greater overall abundance resulted in numerical equivalence to Emperor Geese in habitats preferred by Emperor Geese. Interspecific competition for food has impacted behavior in Emperor Geese, which may impact growth and survival of juvenile geese"--Leaves 3-4

Download or read book Aerial Survey of Emperor Geese and Other Waterbirds in Southwestern Alaska Fall 2002 written by Edward J. Mallek and published by . This book was released on 2002 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A fall aerial emperor goose survey was conducted in southwestern Alaska for the 24rd [sic] consecutive year in 2002. ... Emphases were on emperor geese, Pacific brant, Canada geese and Steller's eiders with estimated populations of 78,692, 101,510, 60,845, and 120,411, respectively."--Caption.

Download or read book 1986 Fall Emperor Goose survey written by Rodney J. King and published by . This book was released on 1986 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: An unpublished memorandum from Rodney J. King to the Chief of Migratory Birds, Anchorage, Alaska dated Oct. 16, 1986. Provides counts by survey segment of emperor geese from an aerial survey conducted Oct. 5-11, 1986. The survey covered coastal habitats from Bethel south along the north side to the Alaska Peninsula and along the south side as far as Cape Kubugakli, as well as the eastern Aleutian Islands from Umnak Island to Ugamak Island.

Download or read book Aerial Survey of Emperor Geese and Other Waterbirds in Southwestern Alaska Fall 1999 written by Edward J. Mallek and published by . This book was released on 2000 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fall Survey of Emperor Geese and Other Associated Water Birds of Coastal Southwest Alaska 6 10 October 1982 written by Rodney J. King and published by . This book was released on 1982 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an aerial survey emperor geese were counted at coastal habitats located south from Bethel to and including the Alaska Peninsula and on the Shumagin Islands. Table 2 on p. [7] contains survey segment counts of other birds and mammals that were observed.

Download or read book Aerial Survey of Emperor Geese and Other Waterbirds in Southwestern Alaska Fall 2003 written by Edward J. Mallek and published by . This book was released on 2003 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aerial Survey of Emperor Geese and Other Waterbirds in Southwestern Alaska Fall 2000 written by Edward J. Mallek and published by . This book was released on 2002 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annual survey emphasizing emperor geese, Pacific brant, Canada geese and Steller's eiders in southwest Alaska.