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Author: Mark R. Fuller
Publisher:
ISBN:
Category : Birds of prey
Languages : en
Pages : 30
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Book Description
Author: Mark R. Fuller
Publisher:
ISBN:
Category : Birds of prey
Languages : en
Pages : 30
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Book Description
Author: Keith L. Bildstein
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 468
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Book Description
« Think about how we know about past events in human history (e.g., the expansion of the Roman Empire, or the American Revolution). What types of records document those events? Now think about Earth's history, specifically the past environmental or climatic conditions at times before recorded human history. What records might there be of such conditions? Make a list of your ideas. n assemblage of five major types of natural archives of Earth's environmental and climatic history. What common feature(s) do each of these paleoclimate archives share? an assemblage of 5 major types of natural records, or archives, of Earth's environmental and climatic history. Just like a diary or other historical document, the layers in these natural archives contain indirect evidence (i.e., proxies) about past conditions and events, recorded in a sequential order. The evidence is specific to a certain time period and may be general or very detailed, depending on the rate that information was recorded. The faster the rate at which the recorder grew (trees and corals), accumulated (snow and ice), or was deposited (sedimentary sequences), the more detailed the record is, and the higher its resolution. For example, a record in which an annual signal can observed has a very high resolution. In contrast, if the finest observable details are on the order of a million years, then that record would have a low resolution. »--
Author:
Publisher: The Stationery Office
ISBN: 9780114973216
Category : Bird populations
Languages : en
Pages : 320
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Book Description
Author: C. John Ralph
Publisher:
ISBN: 9781930665774
Category : Science
Languages : en
Pages : 644
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Book Description
This book was originally published in 1981 as a publication of the Cooper Ornithological Society and was based on the proceedings of a meeting of biologists and statisticians in Asilomar who gathered to examine the methods and assumptions used in estimating bird numbers. Counting birds has a long tradition. It is the currency of many ornithological studies. Bird counts have been seminal in our knowledge of bird migration, competition, ecology, population dynamics, environmental adaptation, impact of human alterations and island biogeography. Interest in estimating bird numbers remains high today but is often plagued by unasked or unanswered questions regarding sampling methods and treatment of the results. This book recorded the outcome of a meeting held to address these and other questions. It led to better understanding of what can and cannot be done with datasets. This volume remains a primary source of information on censusing of birds and other animals, and is frequently quoted in the primary literature of today. Since this volume went out of print some six years ago, demand has markedly increased for copies which are essentially unavailable, attesting to its currency today. C. John Ralph, received his Bachelors from the University of California, Berkeley and his doctorate from The Johns Hopkins University. Most of his early research was on bird migration and orientation. After a stint teaching at Dickinson College in Pennsylvania, he moved to Hawaii in 1976 where he began work on endangered forest birds for the Forest Service as a Research Ecologist. In 1981 he and his family moved to Arcata to join the Forest Service's Redwood Sciences Laboratory. One of his principal research topics there has been on an old-growth dependent bird, the Marbled Murrelet, involving extensive research from Alaska to California. His other principal work is on landbird monitoring, especially involving census and constant effort mist netting. Since 1994 he has directed research at a bird monitoring station in Costa Rica, now one of the longest running stations in Latin America. Beginning in 1980 he conducted research on an island off New Zealand involving monitoring and reintroduction of native birds. He has published more than 150 scientific articles and edited several books on bird monitoring and the Marbled Murrelet.
Author: Beth A. Giron Pendleton
Publisher:
ISBN:
Category : Birds of prey
Languages : en
Pages : 486
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Book Description
Author: Resources Inventory Committee (Canada). Terrestrial Ecosystems Task Force
Publisher: Resources Inventory Committee
ISBN: 9780772646194
Category : Bird populations
Languages : en
Pages : 133
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Book Description
Author: Mayo W. Call
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 130
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Book Description
Author: Jon Hardey
Publisher:
ISBN: 9780114973605
Category : Birds of prey
Languages : en
Pages : 0
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Book Description
This is the 3rd edition of the field guide written for people who watch, survey or monitor birds of prey and contains detailed descriptions of survey methods for all species of raptor found regularly in Britain and Ireland. Written by a team from the Scottish Raptor Monitoring Group, this publication draws on the knowledge and experience of more than 300 raptor specialists. Chapters include the following topics: survey, surveillance and monitoring; population estimates; breeding season parameters; identification and breeding behaviours of raptors; good practice for fieldwork; and detailed species accounts. It includes a CD-ROM of raptor calls.
Author: Gerard Malan
Publisher: Prof Gerard Malan
ISBN: 1920146032
Category : Birds of prey
Languages : en
Pages : 194
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Book Description
Author: William J. Sutherland
Publisher: Cambridge University Press
ISBN: 1139458019
Category : Nature
Languages : en
Pages : 411
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Book Description
This is an updated version of the best selling first edition, Ecological Census Techniques, with updating, some new chapters and authors. Almost all ecological and conservation work involves carrying out a census or survey. This practically focussed book describes how to plan a census, the practical details and shows with worked examples how to analyse the results. The first three chapters describe planning, sampling and the basic theory necessary for carrying out a census. In the subsequent chapters international experts describe the appropriate methods for counting plants, insects, fish, amphibians, reptiles, mammals and birds. As many censuses also relate the results to environmental variability, there is a chapter explaining the main methods. Finally, there is a list of the most common mistakes encountered when carrying out a census.
