Author: Harry M. Ohlendorf
Publisher:
ISBN:
Category : Anhinga anhinga
Languages : en
Pages : 100
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Book Description
In 1972 and 1973 we collected 1,339 clutches of eggs of anhingas (Anhinga anhinga) and 17 species of waders (herons, egrets, bitterns, ibises, and storks). We analyzed the eggs for organochlorine residues and compared shell thickness of these eggs and others collected since 1946 (and now in museum collections) with shell thickness of eggs collected before the widespread use of organochlorine pesticides. Eggshells were significantly thinner in one or more regions for the post-1946 samples of anhinga, great blue heron, black-crowned night heron, and wood stork. We detected no significant change in the other species.
Author: Harry M. Ohlendorf
Publisher:
ISBN:
Category : Anhinga anhinga
Languages : en
Pages : 100
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Book Description
In 1972 and 1973 we collected 1,339 clutches of eggs of anhingas (Anhinga anhinga) and 17 species of waders (herons, egrets, bitterns, ibises, and storks). We analyzed the eggs for organochlorine residues and compared shell thickness of these eggs and others collected since 1946 (and now in museum collections) with shell thickness of eggs collected before the widespread use of organochlorine pesticides. Eggshells were significantly thinner in one or more regions for the post-1946 samples of anhinga, great blue heron, black-crowned night heron, and wood stork. We detected no significant change in the other species.
Author: U.S. Fish and Wildlife Service
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Harry M. Ohlendorf
Publisher:
ISBN:
Category : Anhinga anhinga
Languages : en
Pages : 94
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Book Description
Author: Calvin M. Menzie
Publisher:
ISBN:
Category : Anhinga anhinga
Languages : en
Pages : 45
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Book Description
Author:
Publisher:
ISBN:
Category : Environmental monitoring
Languages : en
Pages : 158
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Book Description
Author: Jules M. Blais
Publisher: Springer
ISBN: 940179541X
Category : Technology & Engineering
Languages : en
Pages : 515
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Book Description
The human footprint on the global environment now touches every corner of the world. This book explores the myriad ways that environmental archives can be used to study the distribution and long-term trajectories of chemical contaminants. The volume first focuses on reviews that examine the integrity of the historic record, including factors related to hydrology, post-depositional diffusion, and mixing processes. This is followed by a series of chapters dealing with the diverse archives and methodologies available for long-term studies of environmental pollution, such as the use of sediments, ice cores, sclerochronology, and museum specimens.
Author: U.S. Fish and Wildlife Service
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 826
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Book Description
Author:
Publisher:
ISBN:
Category : Environmental health
Languages : en
Pages : 204
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Book Description
Author: David M. Whitacre
Publisher: Springer
ISBN: 3319108611
Category : Science
Languages : en
Pages : 186
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Book Description
Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.
