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Author Miklosi, A.; Pongracz, P.; Lakatos, G.; Topal, J.; Csanyi, V.
Title (up) A Comparative Study of the Use of Visual Communicative Signals in Interactions Between Dogs (Canis familiaris) and Humans and Cats (Felis catus) and Humans Type Journal Article
Year 2005 Publication Journal of Comparative Psychology Abbreviated Journal J. Comp. Psychol.
Volume 119 Issue 2 Pages 179-186
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Abstract Dogs' (Canis familiaris) and cats' (Felis catus) interspecific communicative behavior toward humans was investigated. In Experiment 1, the ability of dogs and cats to use human pointing gestures in an object-choice task was compared using 4 types of pointing cues differing in distance between the signaled object and the end of the fingertip and in visibility duration of the given signal. Using these gestures, both dogs and cats were able to find the hidden food; there was no significant difference in their performance. In Experiment 2, the hidden food was made inaccessible to the subjects to determine whether they could indicate the place of the hidden food to a naive owner. Cats lacked some components of attention-getting behavior compared with dogs. The results suggest that individual familiarization with pointing gestures ensures high-level performance in the presence of such gestures; however, species-specific differences could cause differences in signaling toward the human.
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Call Number refbase @ user @ Serial 599
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Author Puppe, B.; Langbein, J.; Bauer, J.; Hoy, S.
Title (up) A comparative view on social hierarchy formation at different stages of pig production using sociometric measures Type Journal Article
Year 2008 Publication Livestock Science Abbreviated Journal
Volume 113 Issue 2-3 Pages 155-162
Keywords Pig; Dominance; Sociometric measures; Social hierarchy; Ontogeny
Abstract A standardised and comprehensive approach to describe dominance relationships in gregarious farm animals quantitatively was recently developed, incorporating a combination of appropriate sociometric measures. The present study applied this approach to a comparative analysis of the social hierarchies within 57 groups of domestic pigs at different age/production stages with a total of 496 animals. Unacquainted pigs were grouped to three age categories which correspond to the typical production stages: weaned pigs (PIG28, 12 groups), growing pigs (PIG80, 16 groups), and reproductive sows (SOW, 29 groups). Based on observed agonistic interactions, sociometric values were calculated both at the dyadic and at the group level and may be considered as preliminary reference values for further studies. As indicated by the respective values of the Kendall index (PIG28: 0.66, tested as significant in 69.0% of the observed groups; PIG80: 0.71, 87.5%; SOW: 0.61, 69.0%), and the improved Landau index (PIG28: 0.70, 75.0%; PIG80: 0.72, 93.7%; SOW: 0.71, 72.4%), a social organisation towards a quasi-linear social hierarchy was predominantly developed throughout all age/production categories. However, compared to weaned and growing pigs, sows were characterised by significant differences concerning establishment (fewer agonistic interactions) and kind (more unknown dyads, fewer two-way and significant dyads, higher directional consistency index) of their social hierarchy. It seems that sows have effectively adapted their agonistic behaviour towards pen-mates to regulate social dominance relationships, whereas younger pigs frequently display agonistic interactions also to gain additional experience on social cues (e.g. the fighting ability of an opponent). Hence, it is concluded that the effective experience of socialisation during sensitive periods may increase the social skills of pigs which in turn can improve their welfare and health, e.g. by adjusted aggressive behaviour. The consideration of comparable and standardised sociometric measures in livestock breeding may help to improve husbandry conditions.
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Call Number Serial 2139
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Author Gruber, T.; Clay, Z.; Zuberbühler, K.
Title (up) A comparison of bonobo and chimpanzee tool use: evidence for a female bias in the Pan lineage Type Journal Article
Year 2010 Publication Animal Behaviour Abbreviated Journal Anim. Behav.
Volume 80 Issue 6 Pages 1023-1033
Keywords culture; great ape; neoteny; Pan; primate evolution; sex difference; tool use
Abstract Chimpanzees, Pan troglodytes, are the most sophisticated tool-users among all nonhuman primates. From an evolutionary perspective, it is therefore puzzling that the tool use behaviour of their closest living primate relative, the bonobo, Pan paniscus, has been described as particularly poor. However, only a small number of bonobo groups have been studied in the wild and only over comparably short periods. Here, we show that captive bonobos and chimpanzees are equally diverse tool-users in most contexts. Our observations illustrate that tool use in bonobos can be highly complex and no different from what has been described for chimpanzees. The only major difference in the chimpanzee and bonobo data was that bonobos of all age–sex classes used tools in a play context, a possible manifestation of their neotenous nature. We also found that female bonobos displayed a larger range of tool use behaviours than males, a pattern previously described for chimpanzees but not for other great apes. Our results are consistent with the hypothesis that the female-biased tool use evolved prior to the split between bonobos and chimpanzees.
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ISSN 0003-3472 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5856
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Author Murray, J.K.; Senior, J.M.; Singer, E.R.
Title (up) A comparison of cross-country recovery rates at CCI 2* with and without steeplechase competitions Type Journal Article
Year 2006 Publication Equine Veterinary Journal. Supplement Abbreviated Journal Equine Vet J Suppl
Volume Issue 36 Pages 133-138
Keywords Analysis of Variance; Animals; Area Under Curve; Blood Chemical Analysis/veterinary; Blood Gas Analysis/veterinary; Calcium/blood; Heart Rate/physiology; Hematocrit/veterinary; Horses/*blood/*physiology; Lactates/blood; Physical Conditioning, Animal/*methods/*physiology; Time Factors
Abstract REASONS FOR PERFORMING STUDY: Short format 3-day events were introduced in 2004. Anecdotal reports suggested that horses were more tired on completion of the cross-country phase of short format events when compared with horses completing the cross-country phase of long format competitions, despite the absence of Phases A, B and C. OBJECTIVES: To compare the physiological parameters and haematological parameters of horses that had completed the cross-country phase of a short format (SF) and a long format (LF) CCI 2* competition. METHODS: During a CCI 2* competition 69 competitors took part in the short format and 74 in the long format competition. Long format competitors completed Phases A, B, C and D and short format competitors completed Phase D only. Phase D (the cross-country course) was identical for both competitions. Two-way ANOVA for repeated measures and post hoc tests were used to compare temperature, pulse and respiration rates of horses competing in both types of competition. T tests were used to compare mean lactate and electrolyte concentrations, while U-Mann Whitney tests were used to compare CK and AST levels measured in horses competing in the short and long formats of the event. RESULTS: Training schedules, age and previous competition experience were not significantly different between horses competing in the SF and LF competitions. On completion of Phase D, SF horses had significantly higher PCV and significantly lower ionised calcium concentrations when compared with LF horses. LF horses had significantly higher heart rates than SF horses 10 min prior to starting Phase D and immediately after completing Phase D; however, no other significant differences were found between the 2 groups of horses. CONCLUSIONS: Only weak evidence was found to support the hypothesis that the workload for the horse in a SF CCI 2* competition is significantly different when compared to the LF CCI 2* competition. POTENTIAL RELEVANCE: There is no beneficial or detrimental effect on horses that complete short format CCI 2* competitions as compared to those that complete long format CCI 2* competitions but further research is required into the physiological response of horses at CCI 3* and CCI 4* short format competitions.
Address Department of Veterinary Clinical Science, University of Bristol, Langford House, Langford, Bristol, UK
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Notes PMID:17402408 Approved no
Call Number Equine Behaviour @ team @ Serial 4011
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Author Berry, M.P.S
Title (up) A comparison of different wildlife production enterprises in the northern Cape Province, South Africa Type Journal Article
Year 1986 Publication Abbreviated Journal S. Afr. J. Wildl. Res.
Volume 16 Issue 4 Pages 124-128
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Call Number Equine Behaviour @ team @ Serial 2238
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Author Lyda, R.O.; Hall, J.R.; Kirkpatrick, J.F.
Title (up) A comparison of Freund's Complete and Freund's Modified Adjuvants used with a contraceptive vaccine in wild horses (Equus caballus) Type Journal Article
Year 2005 Publication Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians Abbreviated Journal J Zoo Wildl Med
Volume 36 Issue 4 Pages 610-616
Keywords Animals; Antibody Formation; Contraception, Immunologic/*veterinary; Estrus/drug effects; Female; Freund's Adjuvant/administration & dosage/adverse effects/*immunology; Horses/immunology/*physiology; *Vaccines, Contraceptive; Zona Pellucida/*immunology
Abstract Fifteen captive wild mares (Equus caballus) were treated with porcine zona pellucida contraceptive vaccine and either Freund's Complete Adjuvant (n = 7) or Freund's Modified Adjuvant (n = 8). All mares received a booster inoculation of porcine zona pellucida plus Freund's Incomplete Adjuvant a month later. Anti-porcine zona pellucida antibodies were measured over 10 mo following the initial inoculation. There were no significant differences in antibody titers at any point during the 10 mo, and seven of the eight mares in the Freund's Modified Adjuvant group were above the 60% level at the end of the study, which is considered to be the contraceptive threshold for horses. There were no significant differences in titers between pregnant and nonpregnant horses, nor was there a significant correlation between age and titers. One local injection site reaction occurred after booster treatment with Freund's Incomplete Adjuvant, and 11 healthy foals were born during the course of the study. These data suggest that Freund's Modified Adjuvant is an acceptable substitute for Freund's Complete Adjuvant in certain free-ranging and captive wildlife species.
Address Science and Conservation Center, 2100 South Shiloh Road, Billings, Montana 59106, USA
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ISSN 1042-7260 ISBN Medium
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Notes PMID:17312717 Approved no
Call Number refbase @ user @ Serial 139
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Author Benson-Amram, S.; Weldele, M.L.; Holekamp, K.E.
Title (up) A comparison of innovative problem-solving abilities between wild and captive spotted hyaenas, Crocuta crocuta Type Journal Article
Year 2013 Publication Animal Behaviour Abbreviated Journal
Volume 85 Issue 2 Pages 349-356
Keywords Crocuta crocuta; innovation; neophobia; problem solving; spotted hyaena
Abstract Innovative problem solving enables individuals to deal with novel social and ecological challenges. However, our understanding of the importance of innovation for animals in their natural habitat is limited because experimental investigations of innovation have historically focused on captive animals. To determine how captivity affects innovation, and whether captive studies of animal innovation suffer from low external validity, we need experimental investigations of innovation in both wild and captive populations of the same species in diverse taxa. Here we inquired whether wild and captive spotted hyaenas differ in their ability to solve the same novel technical problem, and in the diversity of exploratory behaviours they exhibit when first interacting with the problem. Our results suggest that wild and captive populations show important differences in their innovative problem-solving abilities. Captive hyaenas were significantly more successful at solving the novel problem, and significantly more diverse in their initial exploratory behaviour, than were wild hyaenas. We were able to rule out hypotheses suggesting that these differences result from excess energy or time available to captive animals. We conclude that captive hyaenas were more successful because captive individuals were less neophobic and more exploratory than their wild counterparts. These results have important implications for our interpretation of studies on innovative problem solving in captive animals and aid our attempts to gain a broader understanding of the importance of innovation for animals in their natural habitat.
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Call Number Equine Behaviour @ team @ Serial 5657
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Author Hoover, T.S.; Marshall, T.T.
Title (up) A comparison of learning styles and demographic characteristics of students enrolled in selected animal science courses Type Journal Article
Year 1998 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.
Volume 76 Issue 12 Pages 3169-3173
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Call Number Equine Behaviour @ team @ Serial 2939
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Author Klingel H,
Title (up) A comparison of the Social Behaviour of the Equidae. in Geist V & Walther FR (eds): The Behaviour of Ungulates and its Relation to Management Type Journal Article
Year 1974 Publication Abbreviated Journal IUCN Publ
Volume Issue Pages 124-132
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1302
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Author Klingel H,
Title (up) A Comparison of the Social Organization of the Equids. in Denniston RH (ed) Type Conference Volume
Year 1980 Publication Symposium on the Ecology and Behavior of Wild and Feral Equids, Laramie 1979 Abbreviated Journal
Volume Issue Pages 23-30
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1315
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