Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Elsie C. Collias"'
Autor:
Nicholas E. Collias, Elsie C. Collias
Publikováno v:
Koedoe: African Protected Area Conservation and Science, Vol 14, Iss 1, Pp 1-27 (1971)
Spotted-backed Weaverbirds were studied during September-December, 1969 in the Transvaal, chiefly in the Kruger National Park, and observations were made on their distribution, ecology and behaviour. Territorial behaviour, nest-building, pair formati
Externí odkaz:
https://doaj.org/article/d6a252a732b5457dac4e7ea00cf1b227
Autor:
Nicholas E. Collias, Elsie C. Collias
This book is a comprehensive study of nest-building behavior in birds. A much-needed synthesis of the previously scattered literature on this central aspect of avian biology, it is organized by behavior problems and focuses on evolution as its unifyi
Autor:
Elsie C. Collias, Nicholas E. Collias
Publikováno v:
Ibis. 120:1-15
SUMMARY The behaviour of the Sociable Weaver Philetairus socius was studied briefly in South Africa in 1969, and more extensively in aviaries in southern California for over three years (1972-75). The species was bred successfully in captivity, appar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4d6bea3b1e897471a9c8dbe4a875003
https://doi.org/10.1111/j.1474-919x.1978.tb04994.x
https://doi.org/10.1111/j.1474-919x.1978.tb04994.x
Publikováno v:
The Auk. 111:863-872
The evolutionary success of individuals must ultimately be evaluated in terms of their lifetime contribution of mature young to the breeding population. The greater lifetime breeding success of the more dominant hens in an unconfined flock of Red Jun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f2fe56caa87b38640ed38e4825ddc70
https://doi.org/10.2307/4088818
https://doi.org/10.2307/4088818
Autor:
Elsie C. Collias
Publikováno v:
The Auk. 110:683-692
Eggs collected from an aviary colony of Village Weavers (Ploceus cucullatus cucullatus) over a 14-year period varied in color among different females from white to emerald or turquoise, and from many spots to few or none. Color and amount of spotting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85fdfbebcc232d91781b8c809dc0f0cb
https://doi.org/10.2307/4088624
https://doi.org/10.2307/4088624
Publikováno v:
Animal Behaviour. 14:550-559
Summary o 1. A study was made, using banded individuals, of the social organization and mobility in an unconfined population of Red Jungle Fowl (Gallus gallus) on the 100 acre grounds of the San Diego Zoo, California. The peak of breeding comes in Ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa3e5439cbfe0100b312359ceb9b80df
https://doi.org/10.1016/s0003-3472(66)80059-3
https://doi.org/10.1016/s0003-3472(66)80059-3
Autor:
Elsie C. Collias, Nicholas E. Collias
Publikováno v:
Animal Behaviour. 21:371-382
Complete deprivation of nest materials for the first year significantly retarded development of weaving ability in yearling, male village weaverbirds. One male which reached 9 years of age and held territory in breeding colouration never learned to b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3d1b2cb953296724cfc3c7c7c3732e3
https://doi.org/10.1016/s0003-3472(73)80079-x
https://doi.org/10.1016/s0003-3472(73)80079-x
Autor:
Elsie C. Collias, Nicholas E. Collias
Publikováno v:
The Auk. 84:396-411
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e9616a837f7c64c89f049f1eb964f65
https://doi.org/10.2307/4083089
https://doi.org/10.2307/4083089
Autor:
Elsie C. Collias, Nicholas E. Collias
Publikováno v:
Ostrich. 40:169-177
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2071e54ddd5d9dae95a915b9b379a2f5
https://doi.org/10.1080/00306525.1969.9639119
https://doi.org/10.1080/00306525.1969.9639119
Autor:
Nicholas E. Collias, Elsie C. Collias
Publikováno v:
The Auk. 88:124-133
BEHAVIORAL ENERGETICS deals with the relationship between animal behavior and energy income and expenditure. It is a relatively new and undeveloped field of study that attempts to account for the amount of time and effort that animals put into their
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a86e63a42aa6c61c377fd355bd1a2da
https://doi.org/10.2307/4083967
https://doi.org/10.2307/4083967