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Author : Graham W. Smith,United States. National Biological Service
Publisher : Unknown
Page : 258 pages
File Size : 43,6 Mb
Release : 1995
Category : Bird surveys
ISBN : IND:30000042393607
Author : Graham W. Smith
Publisher : Unknown
Page : 252 pages
File Size : 41,6 Mb
Release : 1995
Category : Waterfowl
ISBN : LCCN:95230266
The U.S. Fish and Wildlife Service and the Canadian Wildlife Service in cooperation with others have conducted an annual survey of breeding waterfowl throughout central Canada, the north-central United States, and Alaska since 1955. The area comprises more than 50 strata of habitats. Ducks are counted from aerial transects, and the counts are adjusted upward to account for birds that are not observed by aerial crews. These adjustments, called visibility correction factors, are developed from counts on the ground during which all waterfowl are assumed to have been detected. Counts on the ground are made of a subsample of the aerial survey. Visibility correction factors are calculated for each species and for each aerial crew. The total number of ducks by species and by strata is then calculated as the product of the observed density, the visibility correction factor, and the area of the strata.
Author : Charles J. Henny,David Raymond Anderson,Richard S. Pospahala
Publisher : Unknown
Page : 56 pages
File Size : 55,6 Mb
Release : 1972
Category : Aerial surveys in wildlife management
ISBN : UOM:39015077581208
Josh Hemmer reminisces about his boyhood on the farm and his many interesting relatives.
Author : G. C. Boere,Colin A. Galbraith,David A. Stroud
Publisher : The Stationery Office
Page : 836 pages
File Size : 49,9 Mb
Release : 2006
Category : Flyways
ISBN : 9780114973339
This book is the outcome of a major international conference on waterbirds held in Edinburgh in April 2004.
Author : Janet Kear
Publisher : Unknown
Page : 484 pages
File Size : 40,6 Mb
Release : 2005
Category : Nature
ISBN : 0198610092
Author : Jean-Pierre L. Savard,Dirk V. Derksen,Dan Esler,John M. Eadie
Publisher : CRC Press
Page : 610 pages
File Size : 55,6 Mb
Release : 2015-04-13
Category : Nature
ISBN : 9781482248982
The past decade has seen a huge increase in the interest and attention directed toward sea ducks, the Mergini tribe. This has been inspired, in large part, by the conservation concerns associated with numerical declines in several sea duck species and populations, as well as a growing appreciation for their interesting ecological attributes. Reflecting the considerable research recently conducted on this tribe, Ecology and Conservation of North American Sea Ducks examines the 15 extant species of sea ducks from North America. Chapters are organized conceptually to focus on, compare, and contrast the ecological attributes of the tribe. Experts provide in-depth treatments of a range of topics, including: Population dynamics and genetics Infectious diseases and parasites Breeding costs and cross-seasonal affects Contaminant burdens Foraging behavior and energetics Migration strategies, molt ecology, and habitat affinities and dynamics Breeding systems and reproductive behavior Harvest history The book presents a comprehensive synthesis of sea duck ecology, documents factors that have caused population declines of some species, and provides managers with measures to enhance recovery of depressed populations of sea ducks in North America. Capturing the current state of knowledge of this unique tribe, it provides a benchmark for where we are in conservation efforts and suggests future directions for researchers, managers, students, conservationists, and avian enthusiasts.
Author : Kevin L. Pope,Larkin A. Powell
Publisher : CRC Press
Page : 483 pages
File Size : 43,9 Mb
Release : 2021-06-06
Category : Nature
ISBN : 9781000389227
Harvest of Fish and Wildlife: New Paradigms for Sustainable Management unites experts in wildlife and fishery sciences for an interdisciplinary overview of harvest management. This book presents unique insights for embracing the complete social-ecological system to ensure a sustainable future. It educates users on evolutionary and population dynamics; social and political influences; hunter and angler behavior; decision processes; impacts of regulations; and stakeholder involvement. Features: Written by twenty-four teams of leading scientists and managers. Promotes transparent justification for fishing and hunting regulations. Provides examples for integrating decision making into management. Emphasizes creativity in management by integrating art and science. This book appeals to population biologists, evolutionary biologists and social scientists. It is a key resource for on-the-ground managers and research scientists developing harvesting applications. As the book’s contributors explain: “Making decisions that are robust to uncertainty...is a paradigm shift with a lot of potential to improve outcomes for fish and wildlife populations.” –Andrew Tyre and Brigitte Tenhumberg “Temporal shifts in system states...must somehow be anticipated and dealt with to derive harvest policies that remain optimal in the long term.” –Michael Conroy “Proactive, effective management of sportspersons...will be essential in the new paradigm of harvest management.” –Matthew Gruntorad and Christopher Chizinski
Author : Anonim
Publisher : Unknown
Page : 762 pages
File Size : 42,9 Mb
Release : 2005
Category : Electronic
ISBN : NWU:35556036063154
Author : Byron K. Williams,James D.. Nichols,James D. Nichols,Michael J. Conroy,Michael J.. Conroy
Publisher : Academic Press
Page : 837 pages
File Size : 44,5 Mb
Release : 2002-04-17
Category : Juvenile Nonfiction
ISBN : 9780127544069
Analysis and Management of Animal Populations deals with the processes involved in making informed decisions about the management of animal populations. It covers the modeling of population responses to management actions, the estimation of quantities needed in the modeling effort, and the application of these estimates and models to the development of sound management decisions. The book synthesizes and integrates in a single volume the methods associated with these themes, as they apply to ecological assessment and conservation of animal populations. Integrates population modeling, parameter estimation and decision-theoretic approaches to management in a single, cohesive framework Provides authoritative, state-of-the-art descriptions of quantitative approaches to modeling, estimation and decision-making Emphasizes the role of mathematical modeling in the conduct of science and management Utilizes a unifying biological context, consistent mathematical notation, and numerous biological examples
Author : Ralph W. Tiner,Megan W. Lang,Victor V. Klemas
Publisher : CRC Press
Page : 574 pages
File Size : 41,7 Mb
Release : 2015-03-23
Category : Science
ISBN : 9781482237382
Effectively Manage Wetland Resources Using the Best Available Remote Sensing TechniquesUtilizing top scientists in the wetland classification and mapping field, Remote Sensing of Wetlands: Applications and Advances covers the rapidly changing landscape of wetlands and describes the latest advances in remote sensing that have taken place over the pa
Author : Anonim
Publisher : Unknown
Page : 670 pages
File Size : 49,6 Mb
Release : 2005
Category : Birds
ISBN : CORNELL:31924101486276
Author : Edward Burnham Chamberlain,Charles F. Kaczynski
Publisher : Unknown
Page : 30 pages
File Size : 50,5 Mb
Release : 1965
Category : Aerial surveys
ISBN : UOM:39015095271766
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 : Anonim
Publisher : Unknown
Page : 666 pages
File Size : 55,8 Mb
Release : 2005
Category : Forests and forestry
ISBN : MINN:31951P00848287L
Author : R.M. DeGraaf,R.I. Miller
Publisher : Springer Science & Business Media
Page : 574 pages
File Size : 52,5 Mb
Release : 2012-12-06
Category : Nature
ISBN : 9789400915213
Forest wildlife conservation is critically required in many parts of the world today. This book presents a merger between the elements of wildlife conservation and habitat conservation, and explains how these disciplines can be used to promote the conservation of vertebrates in forests around the world.
Author : Anonim
Publisher : DIANE Publishing
Page : 80 pages
File Size : 40,7 Mb
Release : 1999
Category : Electronic
ISBN : 9781428905870