Download or read book The Co operative Breeding Bird Survey in Canada 1978 written by Canadian Wildlife Service and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Co operative Breeding Bird Survey in Canada 1978 written by Canadian Wildlife Service and published by . This book was released on 1979 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Etude Collective Des Populations D oiseaux Nicheurs Du Canada 1966 1969 written by Anthony J. Erskine and published by . This book was released on 1970 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Co operative Breeding Bird Survey in Canada 1980 written by E. Silieff and published by . This book was released on 1981 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Co operative Breeding Bird in Canada 1978 written by K. E.. Freemark and published by . This book was released on 1979 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Co operative Breeding Bird Survey in Canada 1979 written by G. H. Finney and published by . This book was released on 1980 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Cooperative Breeding Bird Survey in Canada 1988 written by Anthony J. Erskine and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The First Ten Years of the Co operative Breeding Bird Survey in Canada written by Anthony J. Erskine and published by . This book was released on 1970 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Co operative Breeding Bird Survey in Canada 1973 written by Anthony J. Erskine and published by . This book was released on 1974 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Co operative Breeding Bird Survey in Canada 1989 91 written by Anthony J. Erskine and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Co operative Breeding Bird Survey in Canada 1966 69 written by and published by . This book was released on 1970 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the first four years of a co-operative attempt to detect and measure year-to-year changes in numbers of birds, chiefly songbirds, across Canada. Includes description of data collection and year-to-year comparison methods used. Results presented includes number and coverage of bird survey routes, mean number per route of the 20 species recorded in the greatest numbers, population indices 1966-69 for eight major species, changes in bird population indices for comparable survey routes, and annual indices of bird populations in the Maritimes.

Download or read book The Co operative Breeding Bird Survey in Canada 1977 written by Canadian Wildlife Service and published by . This book was released on 1978 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Cooperative Breeding Bird Survey in Canada 1989 91 written by Canadian Wildlife Service and published by Environment Canada, Canadian Wildlife Service. This book was released on 1992 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cooperative Breeding in Birds written by Peter B. Stacey and published by Cambridge University Press. This book was released on 1990-04-19 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cooperative breeding is an unusual kind of social behaviour, found in a few hundred species worldwide, in which individuals other than the parents help raise young. Understanding the apparently altruistic behaviour of helpers has provided numerous challenges to evolutionary biologists. This book includes detailed first-hand summaries of many of the major empirical studies of cooperatively breeding birds. It provides comparative information on the demography, social behaviour and behavioural ecology of these unusual species and explores the diversity of ideas and the controversies which have developed in this field. The studies are all long-term and consequently the book summarises some of the most extensive studies of the behaviour of marked individuals ever undertaken. Graduate students and research workers in ornithology, sociobiology, behavioural ecology and evolutionary biology will find much of value in this book.

Download or read book The Cooperative Breeding Bird Survey in Canada 1988 written by Canadian Wildlife Service and published by Environment Canada, Canadian Wildlife Service. This book was released on 1990 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Co operative Breeding Bird Survey in Canada 1977 written by Canadian Wildlife Service and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Breeding Bird Survey (BBS) has been active in Canada since 1966. This co-operative effort attempts to measure year-to-year and long-term changes in populations of birds (especially smaller land birds) in settled areas of Canada"--Introd.

Download or read book The Co operative Breeding Bird Survey in Canada 1976 written by Anthony J. Erskine and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on a co-operative attempt to detect and measure year-to-year changes in numbers of birds, chiefly songbirds, in settled areas across Canada in 1976. Includes description of data collection and year-to-year comparison methods used, in addition to discussion of trends observed. Results presented includes coverage of bird survey routes; mean number per survey route of the 20 species recorded in the greatest numbers, by region; and changes in bird population indices for comparable survey routes, by region, with comparison to indices from 1975.