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Author : Bruce Calvert Turner
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (138 download)
Download or read book Observations of Snow Geese in the Northern Highlands of Mexico, Winter 1987-88 written by Bruce Calvert Turner and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bruce Calvert Turner
Publisher : Environment Canada, Canadian Wildlife Service
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (319 download)
Download or read book Wintering Populations of Lesser Snow Geese and Ross' Geese in the Northern Highlands of Mexico, 1988-1990 written by Bruce Calvert Turner and published by Environment Canada, Canadian Wildlife Service. This book was released on 1994 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Northern Highlands of Mexico is an increasingly important wintering area for populations of Lesser Snow Geese and Ross" Geese that nest in the Western and Central Canadian Arctic. In Mexico, the growing importance of the Northern Highlands as a wintering area for Ross" Geese and the western Central Flyway population of Lesser Snow Geese underscored the need to conduct field observations in that area and prompted the development of a joint effort involving the Mexican Secretaria de Desarrolla Social, the U.S. Fish and Wildlife Service, and the Canadian Wildlife Service. Some of the objectives were: estimate the number of white geese on the principal wintering areas in the states of Durango and Chihuahua, determine the breeding ground origin of Lesser Snow Goose stocks overwinterin in Mexico, determint ehe incidence and number of Ross' Geese among flocks of white geese, assess the quality and security of white goose wintering habitat, and identify wetland habitats of critical importance to waterfowl.
Author : Bruce Calvert Turner
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (874 download)
Download or read book Wintering Populations of Lesser Snow Geese and Ross' Geese in the Northern Highlands of Mexico, 1988-1990. 1994 written by Bruce Calvert Turner and published by . This book was released on 1994 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. H. Kerbes
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (319 download)
Download or read book Distribution, Survival, and Numbers of Lesser Snow Geese of the Western Canadian Arctic and Wrangel Island, Russia written by R. H. Kerbes and published by . This book was released on 1999 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Razorbill Alca torda is one of the rarest breeding auks in North America. A number of surveys have been conducted at breeding colonies in recent years to estimate population size and trends. Summarizing the available data, we estimate that approximately 38 000 pairs of Razorbills currently breed in eastern North America. The largest concentrations of Razorbills breed on the Quebec North Shore and in coastal southern Labrador; smaller numbers breed in the Quebec portion of the gulf and estuary of the St. Lawrence River, Maine, New Brunswick, Nova Scotia, Newfoundland, and St. Pierre and Miquelon. "--Abstract.
Author : Canada. Environment Canada
Publisher : Minister of Public Works and Government Services
ISBN 13 :
Total Pages : 616 pages
Book Rating : 4.:/5 (89 download)
Download or read book Winter Distributions of Thick-billed Murres from the Eastern Canadian Arctic and Western Greenland in Relation to Age and Time of Year written by Canada. Environment Canada and published by Minister of Public Works and Government Services. This book was released on 1957 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Canadian Wildlife Service
Publisher :
ISBN 13 :
Total Pages : 536 pages
Book Rating : 4.:/5 ( download)
Download or read book Occasional Paper - Canadian Wildlife Service written by Canadian Wildlife Service and published by . This book was released on 1999 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christine Annette Bishop
Publisher :
ISBN 13 : 9780662200383
Total Pages : 540 pages
Book Rating : 4.2/5 (3 download)
Download or read book Declines in Canadian Amphibian Populations written by Christine Annette Bishop and published by . This book was released on 1992 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1991, a workshop was held to examine the data related to declines in Canadian amphibian populations and associated causes and, in particular, to develop a protocol to address the issue. Participants were invited to present reports on the current status of knowledge on amphibians in Canada, particularly species that appear to be threatened. Summaries of this information are presented in this report, along with the factors that may be contributing to fluctuations in amphibian populations. Methodologies and tribulations involved in accurately assessing amphibian population size and recruitment are given. A framework for environmental monitoring was presented and the data needed, both intensive and extensive, was discussed.
Download or read book Ecological Regions of North America written by and published by . This book was released on 1997 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume represents a first attempt at holistically classifying and mapping ecological regions across all three countries of the North American continent. A common analytical methodology is used to examine North American ecology at multiple scales, from large continental ecosystems to subdivisions of these that correlate more detailed physical and biological settings with human activities on two levels of successively smaller units. The volume begins with an overview of North America from an ecological perspective, concepts of ecological regionalization. This is followed by descriptions of the 15 broad ecological regions, including information on physical and biological setting and human activities. The final section presents case studies in applications of the ecological characterization methodology to environmental issues. The appendix includes a list of common and scientific names of selected species characteristic of the ecological regions.
Author :
Publisher :
ISBN 13 :
Total Pages : 566 pages
Book Rating : 4.3/5 (91 download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1995 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles J. Krebs
Publisher : Benjamin-Cummings Publishing Company
ISBN 13 : 9780321068798
Total Pages : 695 pages
Book Rating : 4.0/5 (687 download)
Download or read book Ecology written by Charles J. Krebs and published by Benjamin-Cummings Publishing Company. This book was released on 2001 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: This best-selling majors ecology book continues to present ecology as a series of problems for readers to critically analyze. No other text presents analytical, quantitative, and statistical ecological information in an equally accessible style. Reflecting the way ecologists actually practice, the book emphasizes the role of experiments in testing ecological ideas and discusses many contemporary and controversial problems related to distribution and abundance. Throughout the book, Krebs thoroughly explains the application of mathematical concepts in ecology while reinforcing these concepts with research references, examples, and interesting end-of-chapter review questions. Thoroughly updated with new examples and references, the book now features a new full-color design and is accompanied by an art CD-ROM for instructors. The field package also includes The Ecology Action Guide, a guide that encourages readers to be environmentally responsible citizens, and a subscription to The Ecology Place (www.ecologyplace.com), a web site and CD-ROM that enables users to become virtual field ecologists by performing experiments such as estimating the number of mice on an imaginary island or restoring prairie land in Iowa. For college instructors and students.
Author : R.W. Furness
Publisher : Springer Science & Business Media
ISBN 13 : 9401513228
Total Pages : 365 pages
Book Rating : 4.4/5 (15 download)
Download or read book Birds as Monitors of Environmental Change written by R.W. Furness and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: Birds as Monitors of Environmental Change looks at how bird populations are affected by pollutants, water quality, and other physical changes and how this scientific knowledge can help in predicting the effects of pollutants and other physical changes in the environment.
Author : Charles F. Thompson
Publisher : Springer Science & Business Media
ISBN 13 : 1441964215
Total Pages : 201 pages
Book Rating : 4.4/5 (419 download)
Download or read book Current Ornithology Volume 17 written by Charles F. Thompson and published by Springer Science & Business Media. This book was released on 2010-09-09 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current Ornithology publishes authoritative, up-to-date, scholarly reviews of topics selected from the full range of current research in avian biology. Topics cover the spectrum from the molecular level of organization to population biology and community ecology. The series seeks especially to review (1) fields in which an abundant recent literature will benefit from synthesis and organization, or (2) newly emerging fields that are gaining recognition as the result of recent discoveries or shifts in perspective, or (3) fields in which students of vertebrates may benefit from comparisons of birds with other classes. All chapters are invited, and authors are chosen for their leadership in the subjects under review.
Author : Henning Steinfeld
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251055717
Total Pages : 418 pages
Book Rating : 4.0/5 (557 download)
Download or read book Livestock's Long Shadow written by Henning Steinfeld and published by Food & Agriculture Org.. This book was released on 2006 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The assessment builds on the work of the Livestock, Environment and Development (LEAD) Initiative"--Pref.
Author :
Publisher : U of Nebraska Press
ISBN 13 : 9780803276185
Total Pages : 164 pages
Book Rating : 4.2/5 (761 download)
Download or read book Lewis and Clark on the Great Plains written by and published by U of Nebraska Press. This book was released on 2003-01-01 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: A beautifully rendered reference guide to the Great Plains portion of the famous expedition through the American West highlights the explorer's remarkable encounters with previously undocumented flora and fauna as they moved through the Plains region. Original. (Biology & Natural History)
Author : Paul A. Johnsgard
Publisher :
ISBN 13 :
Total Pages : 470 pages
Book Rating : 4.:/5 (31 download)
Download or read book Ducks, Geese, and Swans of the World written by Paul A. Johnsgard and published by . This book was released on 1978 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of this book is to provide information on each of the species of the waterfowl family in a standardized format and easily accessible manner.
Author : Gary R. Mullen
Publisher : Academic Press
ISBN 13 : 0080919693
Total Pages : 646 pages
Book Rating : 4.0/5 (89 download)
Download or read book Medical and Veterinary Entomology written by Gary R. Mullen and published by Academic Press. This book was released on 2009-04-22 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medical and Veterinary Entomology, Second Edition, has been fully updated and revised to provide the latest information on developments in entomology relating to public health and veterinary importance. Each chapter is structured with the student in mind, organized by the major headings of Taxonomy, Morphology, Life History, Behavior and Ecology, Public Health and Veterinary Importance, and Prevention and Control. This second edition includes separate chapters devoted to each of the taxonomic groups of insects and arachnids of medical or veterinary concern, including spiders, scorpions, mites, and ticks. Internationally recognized editors Mullen and Durden include extensive coverage of both medical and veterinary entomological importance. This book is designed for teaching and research faculty in medical and veterinary schools that provide a course in vector borne diseases and medical entomology; parasitologists, entomologists, and government scientists responsible for oversight and monitoring of insect vector borne diseases; and medical and veterinary school libraries and libraries at institutions with strong programs in entomology. Follows in the tradition of Herm's Medical and Veterinary Entomology The latest information on developments in entomology relating to public health and veterinary importance Two separate indexes for enhanced searchability: Taxonomic and Subject New to this edition: Three new chapters Morphological Adaptations of Parasitic Arthropods Forensic Entomology Molecular Tools in Medical and Veterinary Entomology 1700 word glossary Appendix of Arthropod-Related Viruses of Medical-Veterinary Importance Numerous new full-color images, illustrations and maps throughout
Author : Joshua Ross Ginsberg
Publisher : IUCN
ISBN 13 : 9782880329969
Total Pages : 124 pages
Book Rating : 4.3/5 (299 download)
Download or read book Foxes, Wolves, Jackals, and Dogs written by Joshua Ross Ginsberg and published by IUCN. This book was released on 1990 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
