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Author Houpt, K.A. openurl 
  Title Animal behavior as a subject for veterinary students Type Journal Article
  Year 1976 Publication The Cornell veterinarian Abbreviated Journal Cornell Vet  
  Volume 66 Issue 1 Pages 73-81  
  Keywords Aggression; Animals; *Behavior, Animal; Cats; Chickens; Dogs; Education, Veterinary; Goats; Horses; Humans; Maternal Behavior; Mice; New York; Sexual Behavior, Animal; Sheep; Sleep; Social Behavior; Social Dominance; Swine  
  Abstract (down) Knowledge of animal behavior is an important asset for the veterinarian; therefore a course in veterinary animal behavior is offered at the New York State College of Veterinary Medicine as an elective. The course emphasizes the behavior of those species of most interest to the practicing veterinarian: cats, dogs, horses, cows, pigs and sheep. Dominance heirarchies, animal communication, aggressive behavior, sexual behavior and maternal behavior are discussed. Play, learning, diurnal cycles of activity and sleep, and controls of ingestive behavior are also considered. Exotic and zoo animal behaviors are also presented by experts in these fields. The critical periods of canine development are related to the optimum management of puppies. The behavior of feral dogs and horses is described. The role of the veterinarian in preventing cruelty to animals and recognition of pain in animals is emphasized. Whenever possible behavior is observed in the laboratory or on film.  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0010-8901 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:767053 Approved no  
  Call Number refbase @ user @ Serial 61  
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Author Hemelrijk, C.K.; Wantia, J. doi  openurl
  Title Individual variation by self-organisation Type Journal Article
  Year 2005 Publication Neuroscience and biobehavioral reviews Abbreviated Journal Neurosci Biobehav Rev  
  Volume 29 Issue 1 Pages 125-136  
  Keywords Aggression; Animals; Behavior, Animal/*physiology; Competitive Behavior/*physiology; Female; Humans; *Individuality; Male; Models, Psychological; Sex Characteristics; *Social Dominance; Time Factors  
  Abstract (down) In this paper, we show that differences in dominance and spatial centrality of individuals in a group may arise through self-organisation. Our instrument is a model, called DomWorld, that represents two traits that are often found in animals, namely grouping and competing. In this model individual differences grow under the following conditions: (1) when the intensity of aggression increases and grouping becomes denser, (2) when the degree of sexual dimorphism in fighting power increases. In this case the differences among females compared to males grow too, (3) when, upon encountering another individual, the tendency to attack is 'obligate' and not conditional, namely 'sensitive to risks'. Results resemble phenomena described for societies of primates, mice, birds and pigs.  
  Address Theoretical Biology, University of Groningen, NN Haren, The Netherlands. hemelrij@ifi.unizh.ch  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0149-7634 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:15652260 Approved no  
  Call Number refbase @ user @ Serial 443  
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Author Cancedda, M. openurl 
  Title [Social and behavioral organization of horses on the Giara (Sardinia): distribution and aggregation] Type Journal Article
  Year 1990 Publication Bollettino della Societa italiana di biologia sperimentale Abbreviated Journal Boll Soc Ital Biol Sper  
  Volume 66 Issue 11 Pages 1089-1096  
  Keywords Animals; *Animals, Wild/physiology/psychology; Environment; Female; *Horses/physiology/psychology; Italy; Male; Population Density; Sexual Behavior, Animal; *Social Behavior; Social Dominance; Water  
  Abstract (down) In this paper some considerations on the environment of the 42 Kmq of the volcanic-basaltic Giara tableland are discussed. Conditioning by the environment and its effect on the distribution of a population of 712 horses is illustrated in view of their social and behavioural organization.  
  Address Istituto di Fisiologia Generale e Speciale, Universita di Sassari  
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  Language Italian Summary Language Original Title Introduzione all'organizzazione sociale e comportamentale dei cavallini sulla Giara (Sardegna): distribuzione ed aggregazione  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0037-8771 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:2095819 Approved no  
  Call Number refbase @ user @ Serial 673  
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Author Gajdon, G.K.; Fijn, N.; Huber, L. doi  openurl
  Title Limited spread of innovation in a wild parrot, the kea (Nestor notabilis) Type Journal Article
  Year 2006 Publication Animal Cognition Abbreviated Journal Anim. Cogn.  
  Volume 9 Issue 3 Pages 173-181  
  Keywords Animal Communication; Animals; Diffusion of Innovation; Feeding Behavior; Female; *Imitative Behavior; *Learning; Male; *Motor Skills; *Parrots; *Problem Solving; Sex Factors; Social Dominance; Social Environment; Statistics, Nonparametric  
  Abstract (down) In the local population of kea in Mount Cook Village, New Zealand, some keas open the lids of rubbish bins with their bill to obtain food scraps within. We investigated the extent to which this innovation has spread in the local population, and what factors limit the acquisition of bin opening. Only five males of 36 individually recognised birds were observed to have performed successful bin opening. With one exception there were always other keas present, watching successful bin opening. Seventeen additional individuals were seen to have benefitted from lid opening. Their foraging success was less than that of the bin openers. Social status of bin openers did not differ from scrounging males. Among the individuals that were regularly seen at the site of the bins but were not successful in bin opening, social status and the ratio of feeding directly from open bins correlated with the amount of opening attempts. We conclude that scrounging facilitated certain behavioural aspects of bin opening rather than inhibiting them. The fact that only 9% of opening attempts were successful, and the long period of time required to increase efficiency in lid opening shows that mainly individual experience, and to a lesser extent insight and social learning, play key roles in acquisition of the opening technique. The results indicate that the spread of innovative solutions of challenging mechanical problems in animals may be restricted to only a few individuals.  
  Address Department for Behavior, Neurobiology and Cognition, University of Vienna, 1090, Vienna, Austria. gyula.gajdon@univie.ac.at  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1435-9448 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:16568276 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2472  
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Author Hemelrijk,C. K.; Wantia,J.; Gygax,L. doi  openurl
  Title The construction of dominance order: comparing performance of five methods using an individual-based model Type Journal Article
  Year 2005 Publication Behaviour Abbreviated Journal Behaviour  
  Volume 142 Issue 8 Pages 1043-1064  
  Keywords dominance order, ranking method, agent-based model, statistical method, aggression  
  Abstract (down) In studies of animal behaviour investigators correlate dominance with all kinds of behavioural

variables, such as reproductive success and foraging success. Many methods are used to

produce a dominance hierarchy from a matrix reflecting the frequency of winning dominance

interactions. These different methods produce different hierarchies. However, it is difficult to

decide which ranking method is best. In this paper, we offer a new procedure for this decision:

we use an individual-based model, called DomWorld, as a test-environment. We choose this

model, because it provides access to both the internal dominance values of artificial agents

(which reflects their fighting power) and the matrix of winning and losing among them and,

in addition, because its behavioural rules are biologically inspired and its group-level patterns

resemble those of real primates. We compare statistically the dominance hierarchy based on

the internal dominance values of the artificial agents with the dominance hierarchy produced

by ranking individuals by (a) their total frequency of winning, (b) their average dominance

index, (c) a refined dominance index, the David`s score, (d) the number of subordinates each

individual has and (e) a ranking method based on maximizing the linear order of the hierarchy.

Because dominance hierarchies may differ depending on group size, type of society, and the

interval of study, we compare these ranking methods for these conditions.We study complete

samples as well as samples randomly chosen to resemble the limitations of observing real

animals. It appears that two methods of medium complexity (the average dominance index

and David`s score) lead to hierarchical orders that come closest to the hierarchy based on

internal dominance values of the agents. We advocate usage of the average dominance index,

because of its computational simplicity.
 
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  Notes Approved no  
  Call Number refbase @ user @ Serial 445  
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Author Dubuc, C.; Chapais, B. doi  openurl
  Title Feeding Competition in Macaca fascicularis : An Assessment of the Early Arrival Tactic Type Journal Article
  Year 2007 Publication International Journal of Primatology Abbreviated Journal Int. J. Primatol.  
  Volume Issue Pages  
  Keywords male tolerance – alternative tactics – arrival order – dominance – Macaca fascicularis  
  Abstract (down) In primate species with unidirectional dominance relationships, rank order restricts the access of nondominant females to clumped resources. However, females might attempt to bypass the rank order by reaching feeding sites before the highest ranking individuals (early arrival tactic) when there are net benefits. We therefore analyzed the order of arrival to the feeding site of the adult members of a captive group of long-tailed macaques. We used 2 experimental conditions that differed in the spatial distribution of a fixed amount of food (large vs. small patch). Though each condition induced contest competition, it was stronger in the small-patch condition. Arrival order does not correlate with dominance rank in either experimental condition. The α-male and α-female reached the feeding site 10-30 s after the beginning of the test. Some females seized on opportunities to reach the feeding site before them, especially in the large-patch condition. They used the early arrival tactic when the risks of aggression were relatively low, which subjects accomplished either by being dominant or by being nondominant but tolerated by the α-male. Social tolerance may provide individuals with an alternative means to obtain resources. In sum, variation in food abundance and distribution may affect the extent to which rank order determines order of arrival to feeding sites. A higher rank may confer priority in the choice of tactics, but not necessarily priority of access to the resources themselves.  
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  Notes Approved no  
  Call Number refbase @ user @ Serial 812  
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Author Creel, S. url  doi
openurl 
  Title Social dominance and stress hormones Type Journal Article
  Year 2001 Publication Trends in Ecology & Evolution Abbreviated Journal Trends. Ecol. Evol  
  Volume 16 Issue 9 Pages 491-497  
  Keywords Dominance; rank; stress; glucocorticoids; cooperative breeding; sociality; behavioural endocrinology; mammals  
  Abstract (down) In most cooperatively breeding birds and mammals, reproductive rates are lower for social subordinates than for dominants, and it is common for reproduction in subordinates to be completely suppressed. Early research conducted in captivity showed that losing fights can increase glucocorticoid (GC) secretion, a general response to stress. Because GCs can suppress reproduction, it has been widely argued that chronic stress might underlie reproductive suppression of social subordinates in cooperative breeders. Contradicting this hypothesis, recent studies of cooperative breeders in the wild show that dominant individuals have elevated GCs more often than do subordinates. The findings that elevated GCs can be a consequence of subordination or a cost of dominance complicate the conventional view of social stress, with broad ramifications for the evolution of dominance and reproductive suppression.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4072  
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Author Broom, M. openurl 
  Title A unified model of dominance hierarchy formation and maintenance Type Journal Article
  Year 2002 Publication Journal of theoretical biology Abbreviated Journal J. Theor. Biol.  
  Volume 219 Issue 1 Pages 63-72  
  Keywords Animals; *Behavior, Animal; Feeding Behavior; *Models, Psychological; *Social Dominance; Social Environment  
  Abstract (down) In many different species it is common for animals to spend large portions of their lives in groups. Such groups need to divide available resources amongst the individuals they contain and this is often achieved by means of a dominance hierarchy. Sometimes hierarchies are stable over a long period of time and new individuals slot into pre-determined positions, but there are many situations where this is not so and a hierarchy is formed out of a group of individuals meeting for the first time. There are several different models both of the formation of such dominance hierarchies and of already existing hierarchies. These models often treat the two phases as entirely separate, whereas in reality, if there is a genuine formation phase to the hierarchy, behaviour in this phase will be governed by the rewards available, which in turn depends upon how the hierarchy operates once it has been formed. This paper describes a method of unifying models of these two distinct phases, assuming that the hierarchy formed is stable. In particular a framework is introduced which allows a variety of different models of each of the two parts to be used in conjunction with each other, thus enabling a wide range of situations to be modelled. Some examples are given to show how this works in practice.  
  Address Centre for Statistics and Stochastic Modelling, School of Mathematical Sciences, University of Sussex, Falmer, Brighton, BN1 9QH, U.K. m.broom@sussex.ac.uk  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0022-5193 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:12392975 Approved no  
  Call Number refbase @ user @ Serial 439  
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Author Ostner, J.; Heistermann, M.; Schülke, O. url  doi
openurl 
  Title Dominance, aggression and physiological stress in wild male Assamese macaques (Macaca assamensis) Type Journal Article
  Year 2008 Publication Hormones and Behavior Abbreviated Journal  
  Volume 54 Issue 5 Pages 613-619  
  Keywords Social stress; Dominance; Aggression; Fecal glucocorticoid excretion; Male bonds; Assamese macaques  
  Abstract (down) In group-living animals relative rank positions are often associated with differences in glucocorticoid output. During phases of social stability, when dominance positions are clear and unchallenged, subordinates often face higher costs in terms of social stress than dominant individuals. In this study we test this prediction and examine additional potential correlates of stress, such as reproductive season, age and amount of aggression received in wild, seasonally breeding Assamese macaques (Macaca assamensis). During a mating and a non-mating season we collected 394 h of focal observational data and 440 fecal samples of six adult and six large subadult males living in a multimale-multifemale group in their natural habitat in northeastern Thailand. The mating season was characterized by a general increase in aggressive behavior and glucocorticoid excretion across all males compared to the non-mating season. Among adult males, mating season glucocorticoid levels were significantly negatively related with dominance rank and positively with the amount of aggression received. Both relationships were non-significant among large subadult males. Thus, our results suggest that in adult Assamese macaques a high dominance position is not associated with high costs. Low costs of dominance might be induced by strong social bonds among top-ranking males, which exchange frequent affiliative interactions and serve as allies in coalitionary aggression against potentially rank-challenging subordinate males.  
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  ISSN 0018-506x ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 4694  
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Author Chaudhuri, M.; Ginsberg, J.R. doi  openurl
  Title Urinary androgen concentrations and social status in two species of free ranging zebra (Equus burchelli and E. grevyi). Type Journal Article
  Year 1990 Publication Journal of Reproduction and Fertility Abbreviated Journal J Reprod Fert  
  Volume 88 Issue Pages 127-133  
  Keywords zebra; testosterone; androgens; territoriality; social behaviour; dominance  
  Abstract (down) In both species of zebra, breeding males had higher urinary androgen concentrations (ng androgens/mg Cr) than did non-breeding bachelor males (30.0 +/- 5.0 (N = 9) versus 11.4 +/- 2.8, (N = 7) in the plains zebra; 19.0 +/- 2.2 (N = 17) versus 10.7 +/- 1.2 (N = 14) in the Grevy's zebra). In the more stable family structure of the plains zebra (single male non-territorial groups) variations in androgen concentrations could not be ascribed to any measured variable. In the Grevy's zebra, androgen values were significantly lower in samples taken from territorial (breeding) males which had temporarily abandoned their territories (N = 4) and the urinary androgen concentration for a male on his territory was negatively correlated with the time since females last visited the territory.  
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  Notes from Professor Hans Klingels Equine Reference List Approved yes  
  Call Number Serial 987  
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