Cetacean Survey Line-transect Verification and Management
Author: Alan Robert Jackson
Publisher:
Published: 2001
Total Pages: 60
ISBN-13:
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Author: Alan Robert Jackson
Publisher:
Published: 2001
Total Pages: 60
ISBN-13:
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Publisher:
Published: 2001
Total Pages: 96
ISBN-13:
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Publisher:
Published: 2001
Total Pages: 92
ISBN-13:
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Publisher:
Published: 2001
Total Pages: 80
ISBN-13:
DOWNLOAD EBOOKAuthor: Sofie Van Parijs
Publisher: Frontiers Media SA
Published: 2024-05-24
Total Pages: 342
ISBN-13: 2832548644
DOWNLOAD EBOOKThe ocean is under increasing threat from the expansion of human activities. The combined impacts of these threats as well as the potential impacts of climate change and ocean acidification have placed thousands of species at risk of extinction, and have impaired the structure, function, productivity and resilience of marine ecosystems. Currently, some parts of the world's oceans are significantly impacted, yet are without any form of effective management. Only a small proportion of the oceans are within protected area systems. Globally, measures are being taken to increase protection and sustainable management, but application is uncoordinated and not always effective. In order to support effective policy action by countries and competent international and regional organizations, it is critical to build a sound understanding of the most ecologically and biologically important ocean areas that support healthy marine ecosystems so that the necessary steps to ensure the long-term function and resilience of these systems can be taken.
Author: Filipe Alves
Publisher: Frontiers Media SA
Published: 2023-09-07
Total Pages: 207
ISBN-13: 283253340X
DOWNLOAD EBOOKAuthor: Ian L. Boyd
Publisher: Oxford University Press
Published: 2010-08-12
Total Pages: 475
ISBN-13: 0199216568
DOWNLOAD EBOOKMuch of our knowledge about marine mammals is derived from a long-term and dedicated research effort that is evolving rapidly due to the introduction and invention of new methods.This book reflects the inventiveness of marine researchers as they try to find ways around the problems presented to them by these unusual and challenging animals.
Author:
Publisher:
Published: 1994
Total Pages: 262
ISBN-13:
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Publisher:
Published: 2008
Total Pages: 306
ISBN-13:
DOWNLOAD EBOOKAuthor: S. T. Buckland
Publisher: Springer
Published: 2015-08-08
Total Pages: 285
ISBN-13: 3319192191
DOWNLOAD EBOOKIn this book, the authors cover the basic methods and advances within distance sampling that are most valuable to practitioners and in ecology more broadly. This is the fourth book dedicated to distance sampling. In the decade since the last book published, there have been a number of new developments. The intervening years have also shown which advances are of most use. This self-contained book covers topics from the previous publications, while also including recent developments in method, software and application. Distance sampling refers to a suite of methods, including line and point transect sampling, in which animal density or abundance is estimated from a sample of distances to detected individuals. The book illustrates these methods through case studies; data sets and computer code are supplied to readers through the book’s accompanying website. Some of the case studies use the software Distance, while others use R code. The book is in three parts. The first part addresses basic methods, the design of surveys, distance sampling experiments, field methods and data issues. The second part develops a range of modelling approaches for distance sampling data. The third part describes variations in the basic method; discusses special issues that arise when sampling different taxa (songbirds, seabirds, cetaceans, primates, ungulates, butterflies, and plants); considers advances to deal with failures of the key assumptions; and provides a check-list for those conducting surveys.