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Download or read book Problems in Aerial Surveys of Waterfowl in Eastern Canada written by E. B. Chamberlain and published by . This book was released on 1965 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author: Edward Burnham Chamberlain
Publisher:
Published: 1965
Total Pages: 30
ISBN-13:
DOWNLOAD EBOOKBanding is one of the most important elements in the study of migratory game bird populations. Over 3,100 woodcock were banded in North America during 1965, with major programs conducted in Louisiana, Maine, Michigan, and West Virginia.
Download or read book Problems in Aerial Surveys of Waterfowl in Eastern Canada written by Edward Burnham Chamberlain and published by . This book was released on 1965 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Banding is one of the most important elements in the study of migratory game bird populations. Over 3,100 woodcock were banded in North America during 1965, with major programs conducted in Louisiana, Maine, Michigan, and West Virginia.
Author: Charles F. Kaczynski
Publisher:
Published: 1968
Total Pages: 40
ISBN-13:
DOWNLOAD EBOOKThis report summarizes results from aeriakl surveys of Canada geese and black ducks in eastern Canada. Information presented is based on data obtained during the summer of 1956, 1962-66 for Canada geese and during the spring of 1955, 1963-66 for black ducks.
Download or read book Aerial Surveys of Canada Geese and Black Ducks in Eastern Canada written by Charles F. Kaczynski and published by . This book was released on 1968 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes results from aeriakl surveys of Canada geese and black ducks in eastern Canada. Information presented is based on data obtained during the summer of 1956, 1962-66 for Canada geese and during the spring of 1955, 1963-66 for black ducks.
Author: William H. Goudy
Publisher:
Published: 1966
Total Pages: 1194
ISBN-13:
DOWNLOAD EBOOKSinging-ground surveys of the American woodcock indicate that breeding populations have increased gradually over the past 7 years while production, as indicated by wing-collection surveys, has remained relatively stable. The woodcock harvest, meanwhile, has probably more than doubled during the past decade. This suggests that while woodcock are probably becoming more important to North American sportsmen, hunting mortality is still relatively unimportant.
Download or read book Woodcock Status Report, 1965 written by William H. Goudy and published by . This book was released on 1966 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Singing-ground surveys of the American woodcock indicate that breeding populations have increased gradually over the past 7 years while production, as indicated by wing-collection surveys, has remained relatively stable. The woodcock harvest, meanwhile, has probably more than doubled during the past decade. This suggests that while woodcock are probably becoming more important to North American sportsmen, hunting mortality is still relatively unimportant.
Download or read book A Critical Review of the Aerial and Ground Surveys of Breeding Waterfowl in North America written by Graham W. Smith and published by . This book was released on 1995 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author: H. Boyd
Publisher:
Published: 1974
Total Pages: 114
ISBN-13:
DOWNLOAD EBOOK"The principal purpose of this collection of reports is historical: to record permanently some aspects of the biology and management of waterfowl in eastern Canada and of the "state of the art" in the responsible federal agency in the early 1970's. A secondary reason is the realization that too little of the work being done was being made available to audiences outside the Canadian Wildlife Service (CWS) and provincial agencies"--Introd.
Download or read book Canadian Wildlife Service Waterfowl Studies in Eastern Canada, 1969-73 written by H. Boyd and published by . This book was released on 1974 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The principal purpose of this collection of reports is historical: to record permanently some aspects of the biology and management of waterfowl in eastern Canada and of the "state of the art" in the responsible federal agency in the early 1970's. A secondary reason is the realization that too little of the work being done was being made available to audiences outside the Canadian Wildlife Service (CWS) and provincial agencies"--Introd.
Download or read book Wildlife Research Problems, Programs, Progress written by and published by . This book was released on 1962 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author: R. Kahler Martinson
Publisher:
Published: 1967
Total Pages: 88
ISBN-13:
DOWNLOAD EBOOKSurveying of selected transects from the air and from the ground has been used since 1959 to determine the proportion of waterfowl, by species, that are observed by aerial crews. This method attempts to resolve obvious biases in aerial indexes relating to habitat differences, seasonal differences, aerial crew changes, etc. Assumptions in this method of correction are that (1) the ground crew observed substantially all waterfowl present and (2) the selected comparison transects adequately represent surrounding transects to which the correction is to be applied. This report, utilizing data of 1961 to 1966, reviews the necessity for air:ground correction and evaluates the procedure as a solution to aerial index biases ; problems apparent are lack of representativeness of air:ground transects and inadequate numbers of transects. Lack of representativeness appears in population density and in species composition differences between air:ground and operational transects. The degree to which the numbers of air:ground ratios varies according to areas and according to species. Recommendations to improve the air:ground technique are: (1) make two daily surveys of one aerial pass each, at an interval of at least two hours, in the same direction and at the same time as the adjacent operational transects are surveyed ; (2) make ground counts the day before or day after aerial surveys ; (3) lay out all air:ground comparison transects in the same direction (west-east) as the operational transects ; and (4) match new or relocated transects as nearly as possible to density and species composition of the survey stratum or area they represent.
Download or read book Factors Influencing Waterfowl Counts on Aerial Surveys, 1961-66 written by R. Kahler Martinson and published by . This book was released on 1967 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surveying of selected transects from the air and from the ground has been used since 1959 to determine the proportion of waterfowl, by species, that are observed by aerial crews. This method attempts to resolve obvious biases in aerial indexes relating to habitat differences, seasonal differences, aerial crew changes, etc. Assumptions in this method of correction are that (1) the ground crew observed substantially all waterfowl present and (2) the selected comparison transects adequately represent surrounding transects to which the correction is to be applied. This report, utilizing data of 1961 to 1966, reviews the necessity for air:ground correction and evaluates the procedure as a solution to aerial index biases ; problems apparent are lack of representativeness of air:ground transects and inadequate numbers of transects. Lack of representativeness appears in population density and in species composition differences between air:ground and operational transects. The degree to which the numbers of air:ground ratios varies according to areas and according to species. Recommendations to improve the air:ground technique are: (1) make two daily surveys of one aerial pass each, at an interval of at least two hours, in the same direction and at the same time as the adjacent operational transects are surveyed ; (2) make ground counts the day before or day after aerial surveys ; (3) lay out all air:ground comparison transects in the same direction (west-east) as the operational transects ; and (4) match new or relocated transects as nearly as possible to density and species composition of the survey stratum or area they represent.
Download or read book Resource Publication written by and published by . This book was released on 1965 with total page 326 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 1965 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
