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Author : James O. Keith
Publisher : Unknown
Page : 66 pages
File Size : 42,7 Mb
Release : 1968
Category : Insecticides
ISBN : MINN:31951P00762517J
Author : Anonim
Publisher : Unknown
Page : 132 pages
File Size : 47,6 Mb
Release : 1991
Category : Hydrology
ISBN : MINN:31951P001612184
Author : Stephen K. Sorenson,S. E. Schwarzbach
Publisher : Unknown
Page : 76 pages
File Size : 52,8 Mb
Release : 1991
Category : Freshwater organisms
ISBN : UCR:31210017441575
Author : Anonim
Publisher : Unknown
Page : 472 pages
File Size : 47,9 Mb
Release : 1972
Category : Pesticides
ISBN : OSU:32435025079351
Author : Anonim
Publisher : Unknown
Page : 644 pages
File Size : 49,7 Mb
Release : 1965
Category : Fisheries
ISBN : IND:30000121834802
Author : Anonim
Publisher : Unknown
Page : 628 pages
File Size : 50,8 Mb
Release : 1972
Category : Bird populations
ISBN : STANFORD:36105113703255
Author : Anonim
Publisher : Unknown
Page : 518 pages
File Size : 46,7 Mb
Release : 1973
Category : Fishing
ISBN : MINN:31951T00161921J
Author : Paul H. Eschmeyer,Van Thomas Harris
Publisher : Unknown
Page : 172 pages
File Size : 49,9 Mb
Release : 1974
Category : Fishery management
ISBN : UOM:39015095241454
Author : Denver Wildlife Research Center
Publisher : Unknown
Page : 24 pages
File Size : 51,8 Mb
Release : 1974
Category : Wildlife management
ISBN : WISC:89043824580
Author : Paul Henry Eschmeyer,Van Thomas Harris
Publisher : Unknown
Page : 164 pages
File Size : 52,7 Mb
Release : 1974
Category : Fish-culture
ISBN : UCR:31210024352617
Author : U.S. Fish and Wildlife Service
Publisher : Unknown
Page : 1020 pages
File Size : 47,6 Mb
Release : 1954
Category : Animals
ISBN : OSU:32435025997503
Author : Harry M. Ohlendorf,Erwin E. Klaas,T. Earl Kaiser
Publisher : Unknown
Page : 100 pages
File Size : 41,5 Mb
Release : 1979
Category : Anhinga anhinga
ISBN : UOM:39015095044049
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 : Smithsonian Science Information Exchange
Publisher : Unknown
Page : 376 pages
File Size : 48,8 Mb
Release : 1972
Category : Pesticides
ISBN : UOM:39015046263383
Author : Anonim
Publisher : Unknown
Page : 836 pages
File Size : 40,7 Mb
Release : 1965
Category : Wild life, Conservation of
ISBN : STANFORD:36105014017946
Author : Albert S. Perry,Izuru Yamamoto,Isaac Ishaaya,Rika Y. Perry
Publisher : Springer Science & Business Media
Page : 275 pages
File Size : 41,9 Mb
Release : 2013-03-14
Category : Technology & Engineering
ISBN : 9783662036563
Professor Albert S. Perry passed away suddenly on February 18, 1992, leaving behind his grieving family, friends and colleagues. It was his aspiration to produce a comprehensive work on insecticides to summarize his lifelong dedication to the field of entomology and public health. On the day before his operation, he expressed his desire with the following words: . "1 am coming out of this surgery and will recuperate from it as soon as possible for the sake of my boy (then aged three) and the book". He also told me that he would like to add a chapter on IPM (Integrated Pest Management) and suggested that we write it together. The sad reality is that none of this took place the way he had planned and these became his last words. On my own, I found it difficult to proceed with the writing of the IPM chapter, since several chapters are required to cover· this subject and, in fact, several books. are already devoted to IPM. There was even an IPM article written in a journal (Awake 1983) for a general audience to which he commented that he would like to use it someday because it was well written for laymen, thus providing the readers a wide selection of journals and books to choose from.
