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Moehlman Pdr,. (1979). Behavior and ecology of feral asses (Equus asinus) Diss Univ of Wisconsin. Nat. Geo. Soc. Res. Rep.,, , 405–411.
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Hinde R. A. (1979). Towards Understanding Relationships (European Monographs in Social Psychology). Londres: Academic Press.
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Wells Sm, G. - R. (1979). Social behaviour and relationship in a herd of Carmargue horses. Z. Tierpsychol., 49, 363–380.
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Wells, S., & von Goldschmidt-Rotschild, B. (1979). Social behaviour and relationships in a herd of Camargue horses. Z Tierpsychologie, 49, 363–380.
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Powell, R. A. (1979). The dog: Its domestication and behavior : By . New York: Garland STPM Press (1978). 296 pp. $24.50. Anim. Behav., 27(Part 1), 318–1211.
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Woodward Sl,. (1979). The social system of feral asses. Z. Tierpsychol., 49, 304–316.
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[No authors listed]. (1979). International Conference on Environmental Cadmium: an overview. In Environmental Health Perspectives (Vol. 28, pp. 297–30).
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Kacelnik, A. (1979). The foraging efficiency of great tits (Parus major L.) in relation to light intensity. Anim. Behav., 27(Part 1), 237–241.
Abstract: I report an experiment aimed at testing whether foraging efficiency of great tits is limited by light intensity at the time of the dawn chorus. Captive great tits hunting for prey under different luminance conditions were less successful in finding prey when foraging, hunted for a lower proportion of their time, and handled individual prey items for longer when luminance was under approximately 7 cd/m2. This luminance is not reached in the field until after the time of the dawn chorus, suggesting that in the early morning foraging is limited by light intensity. I suggest that a satisfactory functional explanation of the dawn chorus must take into account the comparatively low foraging opportunity early in the morning, as well as the factors affecting the opportunity for singing and other territorial activities.
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Ruffner Ga, C. S. (1979). Age structure, condition, and reproduction of two burro (Equus asinus) populations from Grand Canyon National Park, Arizona.
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Conley W,. (1979). The potential for increase in horse and ass populations: A theoretical analysis. Symp Ecol and Behav of wild and feral Equids, Laramie, , 221–234.
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