1967 Review of Saskatoon Bird Observations
نویسندگان
چکیده
منابع مشابه
Saskatoon By
Two factors presumed to affect the behavioural response of cattle (Bos taurus) to artificial weaning were investigated: the termination of nursing, and the physical separation of cows and calves. A two-stage process was used to disconnect these traditionally linked components. First, the behaviour of cows and calves was quantified in response to preventing nursing by having calves wear an antis...
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Results of Ondřejov radar observations of Leonid meteor shower in 1965–1967 are presented. Observations performed during previous returns of Leonid meteor showers indicate that both in 1965 and 1966 the peak activity was observed at almost the same solar longitude near L = 235. ◦17. The activity pattern in 1965 showed two well pronounced peaks separated by 23 hours where the second one seemed t...
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Despite a general perception that there is an abundance of nonlethal control technologies, the fact remains that there are fewer registered products and active ingredients for repellents in the U.S. than there were 10 and 20 years ago. This review discusses the technical issues relating to the discovery, formulation, and delivery of chemical repellents, and suggests future avenues of research t...
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r Also appearing in Spanish in Boletin de la O@ina L Sanitaria Panamericana, 1974. 2Center for Disease Control, U.S. Public I-kalth Service, Department of Health, Education, and Welfare, Atlanta, Georgia 30333. Dr. Cal&her is now with the Vector-Borne Diseases Branch, Bureau of Laboratories, Center for Disease Control, Fort Collins, Colorado 80521. Dr. Gutikrez’ position was Visiting Pan Americ...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1968
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay3392