Records |
Author |
Schäfer M, |
Title |
Beobachtungen zum Verhalten des südiberischen Primitivpferdes |
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Year |
1986 |
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Abbreviated Journal |
Diss. München |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1562 |
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Author |
Svendsen Ed, |
Title |
The professional handbook of the donkey |
Type |
Book Whole |
Year |
1986 |
Publication |
Sovereign Printing Group |
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England |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1639 |
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Author |
Berry, M.P.S |
Title |
A comparison of different wildlife production enterprises in the northern Cape Province, South Africa |
Type |
Journal Article |
Year |
1986 |
Publication |
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Abbreviated Journal |
S. Afr. J. Wildl. Res. |
Volume |
16 |
Issue |
4 |
Pages |
124-128 |
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Equine Behaviour @ team @ |
Serial |
2238 |
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Author |
Crowell-Davis, S.L.; Houpt, K.A.; Carini, C.M. |
Title |
Mutual grooming and nearest-neighbor relationships among foals of Equus caballus |
Type |
Journal Article |
Year |
1986 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
Volume |
15 |
Issue |
2 |
Pages |
113-123 |
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Abstract |
A 3-year study was carried out on the developmental behavior of foals from birth to 24 weeks of age and the behavior of mares living with foals. Mutual-grooming partners of foals were primarily other foals. The peak frequency of mutual grooming occurred during Weeks 9-12, when fillies mutual-groomed 1.6 times h-1 and colts mutual-groomed 0.9 times h-1. Fillies mutual-groomed more frequently than colts (P < 0.025). Fillies mutual-groomed randomly with colts and other fillies (P < 0.05), whereas colts mutual-groomed almost exclusively with fillies (P = 0.03). At all ages studied, if a foal's nearest neighbor was not its mother, it was more likely to be another foal than would be expected if the foal was associating randomly with non-mother ponies. Fillies were more likely than expected to have a filly rather than a colt as their nearest neighbor (P = 0.01). Thus, during their first few months of life, the foals studied exhibited patterns of behavior which were consistent with the development of the usual social milieu of unmanaged adults, in which several mares form a cohesive herd with one or more stallions associating with them. |
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Equine Behaviour @ team @ |
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2276 |
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Author |
Cunningham, C.; Berger, J. |
Title |
Wild horses of the Granite Range |
Type |
Journal Article |
Year |
1986 |
Publication |
Natural History |
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Volume |
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Issue |
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Pages |
32-39 |
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no |
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Equine Behaviour @ team @ |
Serial |
2279 |
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Author |
Kirkpatrick, J.F.; Turner, J.W. Jr |
Title |
Comparative reproductive biology of North American feral horses |
Type |
Journal Article |
Year |
1986 |
Publication |
Journal of Equine Veterinary Science |
Abbreviated Journal |
J. Equine Vet. Sci. |
Volume |
6 |
Issue |
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Pages |
224-230 |
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Equine Behaviour @ team @ |
Serial |
2326 |
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Author |
Mayes, E.; Duncan, P. |
Title |
Temporal patterns of feeding behaviour in free-ranging horses |
Type |
Journal Article |
Year |
1986 |
Publication |
Behavior |
Abbreviated Journal |
Behav. |
Volume |
96 |
Issue |
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Pages |
105-129 |
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no |
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Equine Behaviour @ team @ |
Serial |
2351 |
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Author |
Heird, J.C.; Whitaker, D.D.; Bell, R.W.; Ramsey, C.B.; Lokey, C.E. |
Title |
The effects of handling at different ages on the subsequent learning ability of 2-year-old horses |
Type |
Journal Article |
Year |
1986 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
Volume |
15 |
Issue |
1 |
Pages |
15-25 |
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Abstract |
Forty weanling Quarter Horses, from the Pitchfork Ranch, Dickens, Texas, were randomly assigned to one of five groups based on the amount of handling they would receive. The five groups were: (1) limited handling; (2) 1 week of handling; (3) 2 weeks of handling; (4) 3 weeks of handling; (5) continuous handling for 18 months. As 2-year-olds, the horses were tested in a simple place-learning T-maze after being preconditioned. A maximum of 30 daily trials were conducted for 20 consecutive days, with feed location alternating between sides on successive days. If a horse met the criterion of 11 out of 12 correct responses with 8 correct responses being consecutive, it was retired without completing the 30 trials. Group 1 made fewer correct responses during the 20 days than any other group except Group 3. All groups achieved learning by Day 10, but the most-handled group reached a consistently higher percentage of correct responses earlier than the less-handled groups. Group 5, the group receiving the most handling, was the least emotional, as determined by the animals' reactivity to a novel stimulus, and received the highest scores for trainability after being ridden. Preconditioning trainability scores, or estimates of the horses' ability to learn prior to conditioning and testing, tended to predict maze-learning ability. These scores were also significantly correlated with post-maze training scores. |
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Equine Behaviour @ team @ |
Serial |
3590 |
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Author |
Liang, K.-Y.; Zeger, S.L. |
Title |
Longitudinal data analysis using generalized linear models |
Type |
Journal Article |
Year |
1986 |
Publication |
Biometrika |
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Volume |
73 |
Issue |
1 |
Pages |
13-22 |
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Abstract |
This paper proposes an extension of generalized linear models to the analysis of longitudinal data. We introduce a class of estimating equations that give consistent estimates of the regression parameters and of their variance under mild assumptions about the time dependence. The estimating equations are derived without specifying the joint distribution of a subject's observations yet they reduce to the score equations for niultivariate Gaussian outcomes. Asymptotic theory is presented for the general class of estimators. Specific cases in which we assume independence, m-dependence and exchangeable correlation structures from each subject are discussed. Efficiency of the pioposecl estimators in two simple situations is considered. The approach is closely related to quasi-likelihood. |
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10.1093/biomet/73.1.1 |
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Admin @ knut @ |
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4097 |
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Author |
McNaughton, S. J.; Georgiadis, N.J. |
Title |
Ecology of African Grazing and Browsing Mammals |
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Journal Article |
Year |
1986 |
Publication |
Annual Review of Ecology and Systematics |
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Volume |
17 |
Issue |
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Pages |
39-66 |
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Abstract |
INTRODUCTION Africa is the earth's second largest continent, comprising 20% of its surface. Largely tropical, Africa extends as well into temperate zones to 37 N and 35 S. Eastern and southern Africa display steep elevation gradients due to the prevalence there of volcanic orogeny and rifting (29). Local landscapes are distinguished by substantial geological heterogeneity, dissected land forms, and resultant steep gradients of precipitation and vegetation. The consequent pronounced fragnientation of habitats and sharp juxtaposition of distinct vegetation types, combined with climatic oscillations in geological time, contributed to major adaptive radiations of the mammalian fauna (102, 120). Early zoological expeditions recorded that habitat fragmentation and wide spatial variation of animal densities and diversities were distinctive features of African ecosystems (92, 138, 162, 226). Those early records provided the bases of natural history information on animal distributions, habitat preferences, feeding habits, and general ecology; scientific research followed only much later (201). Modem scientific study of African savanna-grassland mammals began in the 1950s (23, 24, 107, 108, 148, 149, 197,203, 204, 210,230), long after the distributions and densities of the major game animals had been affected by growing human populations, colonial land and hunting policies, and virulent exotic diseases that affected the animals both directly and indirectly (57). The mammalian fauna has been increasingly isolated and fragmented within game reserves of varying size, habitat diversity, and animal species diversity; the ability to sustain it in the absence of active management is increasingly questioned (112, 187). For species with population sizes greater than 100 individuals, game reserve area (A) and faunal ... |
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Equine Behaviour @ team @ |
Serial |
4255 |
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