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Author McNaughton, S. J.; Georgiadis, N.J. doi  openurl
  Title Ecology of African Grazing and Browsing Mammals Type Journal Article
  Year 1986 Publication (down) Annual Review of Ecology and Systematics Abbreviated Journal  
  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 Eccles, T.R.; Shackleton, D.M. url  doi
openurl 
  Title Correlates and consequences of social status in female bighorn sheep Type Journal Article
  Year 1986 Publication (down) Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 34 Issue 5 Pages 1392-1401  
  Keywords  
  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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  Area Expedition Conference  
  Notes Approved no  
  Call Number refbase @ user @ Serial 753  
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Author Thouless, C.R.; Guinness, F.E. url  openurl
  Title Conflict between red deer hinds: the winner always wins Type Journal Article
  Year 1986 Publication (down) Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 34 Issue 4 Pages 1166-1171  
  Keywords  
  Abstract Dominance relations between free-living, female red deer (hinds) (Cervus elaphus L.) on the Isle of Rhum, Scotland, were investigated. Most interactions were won by the older hind of the pair and this was the case even when both individuals had reached full body size. The younger hind was more likely to be the winner if the conflict was escalated or if the two hinds were strangers, in which case escalation was more frequent than usual. When outside their normal home range, older hinds were much more likely to lose, and younger ones more likely to win, than usual. These results can be best explained by the hinds using previous experience as a cue for conventional resolution of conflict, with the result that dominance relationships established early in life are perpetuated. No such cue is available if the hinds have not previously met.  
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  Notes Approved no  
  Call Number refbase @ user @ Serial 868  
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Author Cheney, D.L.; Seyfarth, R.M. openurl 
  Title The recognition of social alliances among vervet monkeys Type Journal Article
  Year 1986 Publication (down) Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 34 Issue Pages 1722-1731  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4864  
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Author Giraldeau, L.-A.; Lefebvre, L. url  doi
openurl 
  Title Exchangeable producer and scrounger roles in a captive flock of feral pigeons: a case for the skill pool effect Type Journal Article
  Year 1986 Publication (down) Animal Behaviour Abbreviated Journal Anim. Behav.  
  Volume 34 Issue 3 Pages 797-803  
  Keywords  
  Abstract We investigated the foraging producer-scrounger system of a captive flock of feral pigeons (Columba livia) by monitoring the number of food patches each individual produced. In one experiment, three different patch types were tested on the whole flock while, in a second, flock composition was varied for one patch type. In all cases we found non-uniform distributions of the number of patches produced per individual, which suggests the existence of producer and scrounger roles. This result could not be explained by either dominance or variability in individual learning ability. Individuals switched roles in response to changes both in food patch type and flock composition. These results are discussed in light of the skill pool hypothesis, which suggests that, in a group, different foraging specialists will profit by parasitizing each other's food discoveries.  
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  Series Volume Series Issue Edition  
  ISSN 0003-3472 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6012  
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Author Crowell-Davis, S.L. url  doi
openurl 
  Title Spatial relations between mares and foals of the Welsh pony (Equus caballus) Type Journal Article
  Year 1986 Publication (down) Animal Behaviour Abbreviated Journal 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  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6505  
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Author Polley, L. openurl 
  Title Strongylid parasites of horses: experimental ecology of the free-living stages on the Canadian prairie Type Journal Article
  Year 1986 Publication (down) American Journal of Veterinary Research Abbreviated Journal 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  
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  Series Volume Series Issue Edition  
  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 Zumpe, D.; Michael, R.P. doi  openurl
  Title Dominance index: A simple measure of relative dominance status in primates Type Journal Article
  Year 1986 Publication (down) American journal of primatology Abbreviated Journal 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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  Series Volume Series Issue Edition  
  ISSN 1098-2345 ISBN Medium  
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  Notes Approved no  
  Call Number refbase @ user @ DorisZumpe1986 Serial 871  
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Author Flavell JH openurl 
  Title The development of children's knowledge about the appearance-reality distinction Type Journal Article
  Year 1986 Publication (down) Am. Psychol. Abbreviated Journal  
  Volume 41 Issue Pages 418  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 2992  
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Author Berg Wa, openurl 
  Title Effective population size estimates and breeding in feral horses: A preliminary assessment Type Journal Article
  Year 1986 Publication (down) Abbreviated Journal J Equine Vet. Sc.  
  Volume 6 Issue Pages 240-245  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 933  
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