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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 Abbreviated Journal (up)
Volume 73 Issue 1 Pages 13-22
Keywords
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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Notes 10.1093/biomet/73.1.1 Approved no
Call Number Admin @ knut @ Serial 4097
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Author McNaughton, S. J.; Georgiadis, N.J.
Title Ecology of African Grazing and Browsing Mammals Type Journal Article
Year 1986 Publication Annual Review of Ecology and Systematics Abbreviated Journal (up)
Volume 17 Issue Pages 39-66
Keywords
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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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4255
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Author Springorum B.
Title Hinweise zum Konditionstraining der Military-Pferde Type Book Whole
Year 1986 Publication Abbreviated Journal (up)
Volume Issue Pages
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Publisher FN-Verlag Place of Publication Warendorf Editor
Language Summary Language Original Title
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ISSN ISBN 3 88542 167 4 Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4439
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Author Donner, H.D.
Title Grundausbildung für Reiter und Pferd Type Book Whole
Year 1986 Publication Abbreviated Journal (up)
Volume Issue Pages
Keywords Ausbildung; Dressurreiten; Geländereiten; Grundausbildung; Pferd; Pferdesport; Reiten; Reitsport; Sportausrüstung; Springreiten
Abstract Verf. gibt einen Ueberblick ueber: 1) Grundausbildung des Reiters: a) Vorbedingungen fuer eine erfolgreiche Ausbildung, b) Sitz und Sitzschulung, c) Einwirkung des Reiters, d) Reiten von Grunduebungen und Dressurlektionen, e) Springausbildung, f) Gelaendereiten sowie 2) Grundausbildung des Pferdes: a) Grundkenntnisse fuer den Ausbilder ueber Charakter und Wesen des Pferdes, Grundsaetze und Erziehung, anatomisch-physiologische Voraussetzungen, b) Allgemeine Grundausbildung, c) Grundausbildung im Springen und im Gelaende, d) Arbeit mit Pferden mit Gebaeude- und Temperamentsfehlern. Schiffer
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Publisher FN-Verl. d. Dt. Reiterlichen Vereinigung Place of Publication Warendorf Editor Donner, H.D.; Specht, D.
Language deu Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition 25. Aufl.
ISSN ISBN 9783885421740 Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Pu198801031394 Serial 5972
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Author Blakeman, N.E.; Friend, T.H.
Title Visual discrimination at varying distances in Spanish goats Type Journal Article
Year 1986 Publication Appl Anim Behav Sci Abbreviated Journal (up)
Volume 16 Issue Pages
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Notes Approved no
Call Number Equine Behaviour @ team @ Blakeman1986 Serial 6251
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Author Polley, L.
Title Strongylid parasites of horses: experimental ecology of the free-living stages on the Canadian prairie Type Journal Article
Year 1986 Publication American Journal of Veterinary Research Abbreviated Journal (up) Am J Vet Res
Volume 47 Issue 8 Pages 1686-1693
Keywords Animals; Canada; Ecology; Feces; Female; Horse Diseases/*epidemiology/parasitology; Horses; Larva; Ovum/cytology; Seasons; Strongyloides/isolation & purification; Strongyloidiasis/epidemiology/*veterinary
Abstract Each month for a 1-year period (October through September), equine fecal masses containing eggs of strongylid nematodes were placed outdoors on small grass plots in Saskatchewan, Canada. Thereafter, feces and grass from the plots were sampled after intervals of 1 week or longer, and the strongylid eggs and larvae recovered were counted. These observations were made over a 2-year period. Development of eggs to infective larvae occurred in all experiments, except those established in October, December, and January. Infective larvae from experiments set up in April through September survived that winter. During the summer, there was a gradual build up of infective larvae in the fecal masses, which reached a peak in August and September and then decreased into the winter. These results are discussed in the context of the control of strongylid parasites of horses on the Canadian prairie and in other areas of the world with a similar climate and similar horse management practices.
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Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN 0002-9645 ISBN Medium
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Notes PMID:3752676 Approved no
Call Number Equine Behaviour @ team @ Serial 2682
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Author Gittleman, J.L.
Title Carnivore Life History Patterns: Allometric, Phylogenetic, and Ecological Associations Type Journal Article
Year 1986 Publication The American Naturalist Abbreviated Journal (up) Am Nat
Volume 127 Issue 6 Pages 744-771
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Publisher The University of Chicago Press for The American Society of Naturalists Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-0147 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5453
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Author Zumpe, D.; Michael, R.P.
Title Dominance index: A simple measure of relative dominance status in primates Type Journal Article
Year 1986 Publication American journal of primatology Abbreviated Journal (up) Am. J. Primatol.
Volume 10 Issue 4 Pages 291-300
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Abstract A simple measure of relative dominance status (cardinal rank) is described which we have termed the dominance index. Like more familiar techniques for assessing rank order, it is based on the direction of aggressive and submissive behaviors between all possible paired combinations of animals in a social group. Using data from five groups of female rhesus monkeys, it reliably produced the same ordinal ranks as fight interaction matrices. There was also good agreement with the cardinal ranks produced by two additional measures of dominance and with those produced by observer ratings. The dominance index can be calculated when fights have not actually occurred and is largely independent of the frequency of agonistic interactions. It has, therefore, wide application and can estimate dominance during brief sampling periods (one hour) and also in stable groups when agonistic interactions are low. Its application is described in experiments in which the male in a group of females was changed and the hormonal status of the females was altered. Estrogen increased female dominance status relative to other females.
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ISSN 1098-2345 ISBN Medium
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Notes Approved no
Call Number refbase @ user @ DorisZumpe1986 Serial 871
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Author Crowell-Davis, S.L.
Title Spatial relations between mares and foals of the Welsh pony (Equus caballus) Type Journal Article
Year 1986 Publication Animal Behaviour Abbreviated Journal (up) Anim Beh
Volume 34 Issue 4 Pages 1007-1015
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Abstract Welsh pony mares and foals (Equus caballus) were usually found to be within 1 or 5 m of each other during the first week of the foal's life and gradually spent more time at greater distances as the foals became older. There was an overall levelling of the trend during the 9th-15th weeks of life of the foal, followed by a second period of change during weeks 16-24. Through weeks 21-24, mares and foals spent at least half of their time within 5 m of each other. Proximity was primarily due to foal activity except during foal recumbency. During the first 8 weeks of the foal's life, a mare remained close by when it was recumbent, either by grazing in a circle around it or by standing upright beside it. Mares and foals were most likely to be close together when they were resting upright with the other ponies in the herd and most likely to be far apart when the foal was playing. Similarities in patterns of spatial relationship between the foals of a given mare were demonstrated. There was no difference between colts and filies in the development of independence.
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ISSN 0003-3472 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6505
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Author Eccles, T.R.; Shackleton, D.M.
Title Correlates and consequences of social status in female bighorn sheep Type Journal Article
Year 1986 Publication Animal Behaviour. Abbreviated Journal (up) Anim. Behav.
Volume 34 Issue 5 Pages 1392-1401
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Abstract Dominance-subordinance relationships among a captive group of adule bighorn sheep (Ovis canadensis californiana) were studied from May 1977 to December 1978. Social interactions between females were brief in duration and infrequent. Although a dominance hierarchy was evident among the females, it was not linear. Horn length and body weight were not consistently correlated with social status. The highest ranking females were the most aggressive individuals, initiating more agonistic interactions than subordinates. Females with high social status did not have higher quality diets, lower activity costs, or higher productivity than low ranking females.
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Notes Approved no
Call Number refbase @ user @ Serial 753
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