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Author |
Kacelnik, A. |
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Title  |
The foraging efficiency of great tits (Parus major L.) in relation to light intensity |
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Journal Article |
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Year |
1979 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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27 |
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Part 1 |
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237-241 |
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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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2125 |
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Author |
Clutton-Brock, T.H.; Albon, S.D.; Gibson, R.M.; Guinness, F.E. |
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Title |
The logical stag: Adaptive aspects of fighting in red deer (Cervus elaphus L.) |
Type |
Journal Article |
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Year |
1979 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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27 |
Issue |
Part 1 |
Pages |
211-225 |
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Abstract |
For red deer stags, fighting both has appreciable costs and yields considerable benefits. Up to 6% of rutting stags are permanently injured each year, while fighting success and reproductive success are closely related, within age groups as well as across them. Fighting behaviour is sensitive to changes in the potential benefits of fighting: stags fight most frequently and most intensely where potential benefits are high and tend to avoid fighting with individuals they are unlikely to beat. The relevance of these findings to theoretical models of fighting behaviour is discussed. |
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refbase @ user @ |
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860 |
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Author |
Boyd L, |
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Title |
The mare-foal demography of feral horses in Wyoming's Red Desert |
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Journal Article |
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1979 |
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Symp Ecolo and Behav of wild and feral Equids, Laramie |
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185-204 |
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Laramy |
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from Professor Hans Klingels Equine Reference List |
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967 |
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Author |
Conley W, |
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Title |
The potential for increase in horse and ass populations: A theoretical analysis |
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Journal Article |
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1979 |
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Proceedings of a Conference on the Ecology and Behavior of Feral Equids |
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Symp Ecol and Behav of wild and feral Equids, Laramie |
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221-234 |
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R.H. Denniston |
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from Professor Hans Klingels Equine Reference List |
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no |
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991 |
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Author |
Woodward Sl, |
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Title |
The social system of feral asses |
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Journal Article |
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Year |
1979 |
Publication |
Zeitschrift für Tierpsychologie |
Abbreviated Journal |
Z. Tierpsychol. |
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49 |
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304-316 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1720 |
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Author |
Denniston, R.H. |
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Title |
The varying role of the male in feral horses |
Type |
Journal Article |
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Year |
1979 |
Publication |
Symp Ecol and Behav of wild and feral Equids, Laramie, |
Abbreviated Journal |
Symp Ecol and Behav of wild and feral Equids, Laramie, |
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Pages |
93-98 |
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from Professor Hans Klingels Equine Reference List |
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no |
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1007 |
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Author |
Reader J, |
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Title |
The violent rescue of Grevy's zebra – a controversial operation |
Type |
Book Whole |
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Year |
1979 |
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from Professor Hans Klingels Equine Reference List |
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no |
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1502 |
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Author |
Boy V, D.P. |
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Title |
Time-budgets of Camargue horses, I. Development changes in the time-budgets of foals |
Type |
Journal Article |
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Year |
1979 |
Publication |
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Abbreviated Journal |
Behaviour |
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Volume |
71 |
Issue |
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Pages |
187-202 |
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from Professor Hans Klingels Equine Reference List |
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no |
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966 |
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Author |
Boy, V.; Duncan, P. |
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Title |
Time-budgets of Camargue horses. I. Developmental changes in the time-budgets of foals. |
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1979 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
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71 |
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Pages |
187-201 |
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1803 |
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Author |
Duncan P, |
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Title |
Time-budgets of Camrgue horses; II. Time- budgets of adult horses and weaned sub-adults |
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1979 |
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Behaviour |
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72 |
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26-49 |
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from Professor Hans Klingels Equine Reference List |
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no |
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1029 |
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