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Author : Ohio Biological Survey
Publisher : Unknown
Page : 488 pages
File Size : 40,8 Mb
Release : 1913
Category : Biology
ISBN : WISC:89036573590
Author : Anonim
Publisher : Unknown
Page : 460 pages
File Size : 55,8 Mb
Release : 1971
Category : Biology
ISBN : UCLA:31158009154054
Author : Ohio Biological Survey
Publisher : Unknown
Page : 560 pages
File Size : 51,8 Mb
Release : 1930
Category : Electronic
ISBN : CHI:73745334
Author : Herbert Osborn
Publisher : Unknown
Page : 60 pages
File Size : 48,9 Mb
Release : 1940
Category : Hemiptera
ISBN : CORNELL:31924018286033
Author : Ohio Biological Survey
Publisher : Unknown
Page : 406 pages
File Size : 42,9 Mb
Release : 1940
Category : Electronic
ISBN : CHI:57110462
Author : United States. Bureau of Biological Survey
Publisher : Unknown
Page : 594 pages
File Size : 43,8 Mb
Release : 1906
Category : Zoology, Economic
ISBN : PURD:32754080148079
Author : Ohio Biological Survey
Publisher : Unknown
Page : 56 pages
File Size : 44,9 Mb
Release : 1996
Category : Biology
ISBN : CORNELL:31924089562379
Author : Harold Willard Keller,Ohio Biological Survey
Publisher : Unknown
Page : 182 pages
File Size : 43,9 Mb
Release : 1913
Category : Biology
ISBN : 0867271337
Author : United States. Bureau of Biological Survey
Publisher : Unknown
Page : 746 pages
File Size : 48,6 Mb
Release : 1889
Category : Zoology, Economic
ISBN : STANFORD:36105130125086
Author : Michael Lannoo
Publisher : Univ of California Press
Page : 1117 pages
File Size : 43,5 Mb
Release : 2005-06-15
Category : Science
ISBN : 9780520929432
This benchmark volume documents in comprehensive detail a major environmental crisis: rapidly declining amphibian populations and the disturbing developmental problems that are increasingly prevalent within many amphibian species. Horror stories on this topic have been featured in the scientific and popular press over the past fifteen years, invariably asking what amphibian declines are telling us about the state of the environment. Are declines harbingers of devastated ecosystems or simply weird reflections of a peculiar amphibian world? This compendium—presenting new data, reviews of current literature, and comprehensive species accounts—reinforces what scientists have begun to suspect, that amphibians are a lens through which the state of the environment can be viewed more clearly. And, that the view is alarming and presages serious concerns for all life, including that of our own species. The first part of this work consists of more than fifty essays covering topics from the causes of declines to conservation, surveys and monitoring, and education. The second part consists of species accounts describing the life history and natural history of every known amphibian species in the United States.
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 51,8 Mb
Release : 1913
Category : Biology
ISBN : LCCN:87641334
Author : United States Bureau of Biological Surv
Publisher : Arkose Press
Page : 936 pages
File Size : 45,7 Mb
Release : 2015-09-28
Category : Electronic
ISBN : 1343628938
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author : Ohio Biological Survey
Publisher : Unknown
Page : 646 pages
File Size : 49,5 Mb
Release : 1962
Category : Biology
ISBN : UOM:39015034773906
Author : Anonim
Publisher : Unknown
Page : 584 pages
File Size : 42,6 Mb
Release : 1977
Category : Energy facilities
ISBN : IND:30000092085061
Author : Thomas P. Simon,Robert Wallus
Publisher : CRC Press
Page : 650 pages
File Size : 52,8 Mb
Release : 2005-12-15
Category : Nature
ISBN : 9781420039580
Knowledge of the early life stages of fishes is crucial for the effective monitoring and management of fish populations and habitats, and the evaluation of environmental impacts and recovery of endangered species. Unfortunately, the proper identification of targeted species has stunted the development of the field. Now a series has emerged