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Author de Waal, F.B. openurl 
  Title Food transfers through mesh in brown capuchins Type Journal Article
  Year 1997 Publication Journal of comparative psychology (Washington, D.C. : 1983) Abbreviated Journal J Comp Psychol  
  Volume (down) 111 Issue 4 Pages 370-378  
  Keywords Animals; Cebus/*psychology; *Feeding Behavior; Female; Food Preferences/psychology; Male; *Motivation; Sex Factors; *Social Behavior; Social Environment  
  Abstract Capuchin monkeys (Cebus apella) share food even if their partner is behind a mesh restraint. Pairs of adult capuchins were moved into a test chamber in which 1 monkey received cucumber pieces for 20 min and the other received apple slices during the following 20 min. Tolerant transfers of food occurred reciprocally among females: The rate of transfer from Female B to A in the second test phase varied with the rate from Female A to B in the first test phase. Several social mechanisms may explain this reciprocity. Whereas this study does not contradict cognitively complex explanations (e.g., mental record keeping of given and received food), the results are consistent with a rather simple explanation: that food sharing reflects a combination of affiliative tendency and high tolerance. The study suggests that sharing mechanisms may be different for adult male capuchins, with males sharing food more readily and less discriminatingly than females.  
  Address Yerkes Primate Center, Emory University, Atlanta, Georgia 30329, USA. dewaal@emory.edu  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0735-7036 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:9419882 Approved no  
  Call Number refbase @ user @ Serial 198  
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Author Inoue-Nakamura N; Matsuzawa T openurl 
  Title Development of stone tool use by wild chimpanzees (Pan troglodytes) Type Journal Article
  Year 1997 Publication J. Comp. Psychol. Abbreviated Journal  
  Volume (down) 111 Issue Pages 159  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 3009  
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Author Russell, C.L.; Bard, K.A.; Adamson, L.B. doi  openurl
  Title Social referencing by young chimpanzees (Pan troglodytes) Type Journal Article
  Year 1997 Publication Journal of Comparative Psychology Abbreviated Journal J. Comp. Psychol.  
  Volume (down) 111 Issue 2 Pages 185-191  
  Keywords happy & fear messages concerning novel objects from familiar human caregiver, social referencing, 14–41 mo old chimpanzees  
  Abstract Social referencing is the seeking of information from another individual and the use of that information to evaluate a situation. It is a well-documented ability in human infants but has not been studied experimentally in nonhuman primates. Seventeen young nursery-reared chimpanzees (14 to 41 months old) were observed in a standard social referencing paradigm in which they received happy and fear messages concerning novel objects from a familiar human caregiver. Each chimpanzee looked referentially at their caregiver, and the emotional messages that they received differentially influenced their gaze behavior and avoidance of the novel objects. It is concluded that chimpanzees can acquire information about their complex social and physical environments through social referencing and can use emotional information to alter their own behavior. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  
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  Publisher US: American Psychological Association Place of Publication Editor  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1939-2087(Electronic);0735-7036(Print) ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Equine Behaviour @ team @ 1997-06365-008 Serial 5603  
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Author Owren, M.J.; Seyfarth, R.M.; Cheney, D.L. openurl 
  Title The acoustic features of vowel-like grunt calls in chacma baboons (Papio cyncephalus ursinus): implications for production processes and functions Type Journal Article
  Year 1997 Publication The Journal of the Acoustical Society of America Abbreviated Journal J Acoust Soc Am  
  Volume (down) 101 Issue 5 Pt 1 Pages 2951-2963  
  Keywords Animals; Female; *Papio; Sound Spectrography; *Vocalization, Animal  
  Abstract The acoustic features of 216 baboon grunts were investigated through analysis of field-recorded calls produced by identified females in known contexts. Analyses addressed two distinct questions: whether the acoustic features of these tonal sounds could be characterized using a source-filter approach and whether the acoustic features of grunts varied by individual caller and social context. Converging evidence indicated that grunts were produced through a combination of periodic laryngeal vibration and a stable vocal tract filter. Their acoustic properties closely resembled those of prototypical human vowel sounds. In general, variation in the acoustic features of the grunts was more strongly related to caller identity than to the social contexts of calling. However, two acoustic parameters, second formant frequency and overall spectral tilt, did vary consistently depending on whether the caller was interacting with an infant or participating in a group move. Nonetheless, in accordance with the general view that identity cueing is a compelling function in animal communication, it can be concluded that much of the observed variability in grunt acoustics is likely to be related to this aspect of signaling. Further, cues related to vocal tract filtering appear particularly likely to play an important role in identifying individual calling animals.  
  Address Department of Psychology, Reed College, Portland, Oregon 97202, USA. michael.owren@reed.edu  
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  Series Volume Series Issue Edition  
  ISSN 0001-4966 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:9165741 Approved no  
  Call Number refbase @ user @ Serial 698  
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Author Dusek, J.A.; Eichenbaum, H. openurl 
  Title The hippocampus and memory for orderly stimulus relations Type Journal Article
  Year 1997 Publication Proceedings of the National Academy of Sciences of the United States of America Abbreviated Journal Proc. Natl. Acad. Sci. U.S.A.  
  Volume (down) 94 Issue 13 Pages 7109-7114  
  Keywords Animals; Attention; Discrimination (Psychology)/physiology; Hippocampus/anatomy & histology/*physiology; Male; Memory/*physiology; Rats  
  Abstract Human declarative memory involves a systematic organization of information that supports generalizations and inferences from acquired knowledge. This kind of memory depends on the hippocampal region in humans, but the extent to which animals also have declarative memory, and whether inferential expression of memory depends on the hippocampus in animals, remains a major challenge in cognitive neuroscience. To examine these issues, we used a test of transitive inference pioneered by Piaget to assess capacities for systematic organization of knowledge and logical inference in children. In our adaptation of the test, rats were trained on a set of four overlapping odor discrimination problems that could be encoded either separately or as a single representation of orderly relations among the odor stimuli. Normal rats learned the problems and demonstrated the relational memory organization through appropriate transitive inferences about items not presented together during training. By contrast, after disconnection of the hippocampus from either its cortical or subcortical pathway, rats succeeded in acquiring the separate discrimination problems but did not demonstrate transitive inference, indicating that they had failed to develop or could not inferentially express the orderly organization of the stimulus elements. These findings strongly support the view that the hippocampus mediates a general declarative memory capacity in animals, as it does in humans.  
  Address Department of Psychology, Boston University, 64 Cummington Street, Boston, MA 02215, USA  
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  Series Volume Series Issue Edition  
  ISSN 0027-8424 ISBN Medium  
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  Notes PMID:9192700 Approved no  
  Call Number refbase @ user @ Serial 607  
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Author Gibson, K.T.; Burbidge, H.M.; Anderson, B.H. openurl 
  Title Tendonitis of the branches of insertion of the superficial digital flexor tendon in horses Type Journal Article
  Year 1997 Publication Australian Veterinary Journal Abbreviated Journal Aust Vet J  
  Volume (down) 75 Issue 4 Pages 253-256  
  Keywords Animals; Carpus, Animal/pathology/physiopathology/ultrasonography; Horse Diseases/*diagnosis/pathology/ultrasonography; Horses; Prognosis; Retrospective Studies; Tendinopathy/diagnosis/pathology/*veterinary; Tendon Injuries/diagnosis/pathology/veterinary; Tendons/pathology/physiopathology/ultrasonography; Ultrasonography/methods/veterinary  
  Abstract OBJECTIVE: To describe clinical findings, ultrasonographic features and outcome of injury to the branches of insertion of the superficial digital flexor (SDF) tendon in horses. DESIGN: Retrospective study of 14 cases. PROCEDURE: Fourteen Thoroughbred horses with tendonitis affecting the branches of insertion of the SDF tendon were examined for lameness, location and amount of swelling, and the presence of other musculoskeletal abnormalities. The flexor tendons were assessed by ultrasonographic examination, and recommendations were made for management of the cases. Outcome was assessed by re-examination of some horses, direct communication with the owner or trainer, and examination of race records. RESULTS: The lateral SDF branch was affected in 10 horses; the medial branch in three, and both branches in one horse. Two horses had concurrent injuries to the SDF tendon in the metacarpal region of the contralateral limb. Ultrasonographic findings included swelling of the affected SDF branch, peritendinous fluid accumulation, disruption of normal fibre alignment on sagittal scan, and variable loss of echogenicity. As healing occurred, there was return of normal echogenicity, but normal fibre alignment did not return completely and apparent adhesions formed between the affected SDF branch and adjacent structures. Seven of 10 horses which returned to their previous use were able to compete without further tendon injury. Recurrence of injury occurred in one case, and another two horses developed tendonitis in the metacarpal region. One horse was retired from racing but was able to compete at dressage without recurrence of injury. Two horses were retired for breeding without returning to training, and one horse was sold and lost to follow up but did not race. CONCLUSION: The prognosis is fair for return to previous use following injury to the branches of insertion of the SDF tendon in athletic horses.  
  Address Department of Veterinary Clinical Sciences, Massey University, Palmerston North, New Zealand  
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  Series Volume Series Issue Edition  
  ISSN 0005-0423 ISBN Medium  
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  Notes PMID:9140649 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3739  
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Author Hauser MD openurl 
  Title Artifactual kinds and functional design features: what a primate understands without language Type Journal Article
  Year 1997 Publication Cognition Abbreviated Journal  
  Volume (down) 64 Issue Pages 285  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 3064  
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Author Palme, R.; Moestl, E. openurl 
  Title Measurement of cortisol metabolites in faeces of sheep as a parameter of cortisol concentration in blood Type Journal Article
  Year 1997 Publication Zeitschrift für Säugetierkunde Abbreviated Journal J. Mammal. Biol.  
  Volume (down) 62 Issue Pages 192-197  
  Keywords glucocorticoids, metabolites, animal biology, sheep, immunoenzyme techniques,  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 6044  
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Author Kida, H. openurl 
  Title [Ecology of influenza viruses in animals and the mechanism of emergence of new pandemic strains] Type Journal Article
  Year 1997 Publication Nippon Rinsho. Japanese Journal of Clinical Medicine Abbreviated Journal Nippon Rinsho  
  Volume (down) 55 Issue 10 Pages 2521-2526  
  Keywords Animals; Bird Diseases/transmission; Birds; Horse Diseases/transmission; Horses; Humans; Influenza, Human/transmission/*veterinary; Swine; Swine Diseases/transmission; Zoonoses  
  Abstract Ecological studies on influenza viruses revealed that the hemagglutinin genes are introduced into new pandemic strains from viruses circulating in migratory ducks through domestic ducks and pigs in southern China. Experimental infection of pigs with 38 avian influenza virus strains with H1-H13 hemagglutinins showed that at least one strain of each HA subtype replicated in the upper respiratory tract of pigs. Co-infection of pigs with a swine virus and with an avian virus generated reassortant viruses. The results indicate that avian viruses of any subtype can contribute genes in the generation of reassortants. Virological surveillance revealed that influenza viruses in waterfowl reservoir are perpetuated year-by-year in the frozen lake water while ducks are absent.  
  Address Department of Disease Control, Hokkaido University Graduate School of Veterinary Medicine  
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  Language Japanese Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0047-1852 ISBN Medium  
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  Notes PMID:9360367 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2654  
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Author Judge, P.G.; De Waa,l F.B.M. doi  openurl
  Title Rhesus monkey behaviour under diverse population densities: coping with long-term crowding Type Journal Article
  Year 1997 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume (down) 54 Issue 3 Pages 643-662  
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  Abstract A popular view is that high population density promotes behavioural pathology, particularly increased aggression. In contrast, according to a coping model, some primates have behavioural mechanisms (e.g. formal displays, reconciliation and grooming) that regulate social tensions and control the negative consequences of crowding. Seven captive rhesus monkey groups, Macaca mulattawere observed over a wide range of population densities where high-density groups were over 2000 times more crowded than low-density free-ranging groups. As density increased, male rhesus monkeys increased grooming and huddling but did not increase rates of aggression. Females increased all categories of behaviour examined (heavy aggression, mild aggression, formal bared-teeth displays, grooming and huddling), but the increases were not distributed uniformly to all classes of partners. Females increased only grooming, huddling and appeasement displays to males, increased only aggression and huddling with kin and increased all categories of behaviour to non-kin adult females. There were no differences in the percentage of aggressive conflicts reconciled across density conditions. Increased density had different effects on particular relationships. Relationships between females and males were characterized by a coping pattern in which animals modified their behaviour in ways that may decrease aggression under crowded conditions. Female relationships with kin and non-kin were characterized by increases in both aggression and friendly interactions as density increased. The different patterns of response to higher density may reflect different strategies depending on the strength and stability of relationships and the potential consequences if certain relationships are disrupted.1997The Association for the Study of Animal Behaviour  
  Address Yerkes Regional Primate Research Center and Department of Psychology, Emory University  
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  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-3472 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:9299049 Approved no  
  Call Number refbase @ user @ Serial 199  
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