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| Author | Biro, D.; Inoue-Nakamura, N.; Tonooka, R.; Yamakoshi, G.; Sousa, C.; Matsuzawa, T. | ||||
| Title | Cultural innovation and transmission of tool use in wild chimpanzees: evidence from field experiments | Type | Journal Article | ||
| Year | 2003 | Publication | Animal Cognition | Abbreviated Journal | Anim. Cogn. |
| Volume | 6 | Issue | 4 | Pages | 213-223 |
| Keywords | Animals; Cooking and Eating Utensils; *Culture; *Diffusion of Innovation; *Feeding Behavior/psychology; Female; Functional Laterality; *Imitative Behavior; Male; Motor Skills; Pan troglodytes/*psychology; *Social Environment | ||||
Abstract  |
Chimpanzees (Pan troglodytes) are the most proficient and versatile users of tools in the wild. How such skills become integrated into the behavioural repertoire of wild chimpanzee communities is investigated here by drawing together evidence from three complementary approaches in a group of oil-palm nut- ( Elaeis guineensis) cracking chimpanzees at Bossou, Guinea. First, extensive surveys of communities adjacent to Bossou have shown that population-specific details of tool use, such as the selection of species of nuts as targets for cracking, cannot be explained purely on the basis of ecological differences. Second, a 16-year longitudinal record tracing the development of nut-cracking in individual chimpanzees has highlighted the importance of a critical period for learning (3-5 years of age), while the similar learning contexts experienced by siblings have been found to result in near-perfect (13 out of 14 dyads) inter-sibling correspondence in laterality. Third, novel data from field experiments involving the introduction of unfamiliar species of nuts to the Bossou group illuminates key aspects of both cultural innovation and transmission. We show that responses of individuals toward the novel items differ markedly with age, with juveniles being the most likely to explore. Furthermore, subjects are highly specific in their selection of conspecifics as models for observation, attending to the nut-cracking activities of individuals in the same age group or older, but not younger than themselves. Together with the phenomenon of inter-community migration, these results demonstrate a mechanism for the emergence of culture in wild chimpanzees. | ||||
| Address | Primate Research Institute, Kyoto University, Japan. dora.biro@zoology.oxford.ac.uk | ||||
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| Publisher | Springer-Verlag | Place of Publication | Editor | ||
| Language | English | Summary Language | Original Title | ||
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| ISSN | 1435-9448 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | PMID:12898285 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 2560 | ||
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| Author | Bertolucci, C.; Giannetto, C.; Fazio, F.; Piccione, G. | ||||
| Title | Seasonal variations in daily rhythms of activity in athletic horses | Type | Journal Article | ||
| Year | 2008 | Publication | Animal | Abbreviated Journal | Animal |
| Volume | 2 | Issue | 07 | Pages | 1055-1060 |
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| Abstract |
Circadian rhythms reflect extensive programming of biological activity that meets and exploits the challenges and opportunities offered by the periodic nature of the environment. In the present investigation, we recorded the total activity of athletic horses kept at four different times of the year (vernal equinox, summer solstice, autumn equinox and winter solstice), to evaluate the presence of seasonal variations of daily activity rhythms. Athletic Thoroughbred horses were kept in individual boxes with paddock. Digitally integrated measure of total activity of each mare was continuously recorded by actigraphy-based data loggers. Horse total activities were not evenly distributed over the day, but they were mainly diurnal during the year. Daily activity rhythms showed clear seasonal variations, with the highest daily amount of activity during the vernal equinox and the lowest during the winter solstice. Interestingly, the amount of activity during either photophase or scotophase changed significantly throughout the year. Circadian analysis of horse activities showed that the acrophase, the estimated time at which the peak of the rhythm occurs, did not change during the year, it always occurred in the middle of the photoperiod. Analysing the time structure of long-term and continuously measured activity and feeding could be a useful method to critically evaluate athletic horse management systems in which spontaneous locomotor activity and feeding are severely limited. Circadian rhythms are present in several elements of sensory motor and psychomotor functions and these would be taken into consideration to plan the training schedules and competitions in athletic horses. | ||||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 4823 | ||
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| Author | Giraldeau, L.A.; Beauchamp, G. | ||||
| Title | Food exploitation: searching for the optimal joining policy | Type | Journal Article | ||
| Year | 1999 | Publication | Abbreviated Journal | Trends In Ecology And Evolution | |
| Volume | 14 | Issue | 3 | Pages | 102-106 |
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| Abstract |
Commonly invoked foraging advantages of group membership include increased mean food intake rates and/or reduced variance in foraging success. These foraging advantages rely on the occurrence of 'joining': feeding from food discovered or captured by others. Joining occurs in most social species but the assumptions underlying its analysis have been clarified only recently, giving rise to two classes of model: information-sharing and producer-scrounger models. Recent experimental evidence suggests that joining in ground-feeding birds might be best analysed as a producer-scrounger game, with some intriguing consequences for the spatial distribution of foragers and patch exploitation. | ||||
| Address | Dept of Biology, Concordia University, 1455 Ouest Blvd de Maisonneuve, Montreal, Quebec, Canada H3G 1M8 | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0169-5347 | ISBN | Medium | ||
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| Notes | PMID:10322509 | Approved | no | ||
| Call Number | Serial | 2137 | |||
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| Author | Boysen, S.T.; Himes, G.T. | ||||
| Title | Current Issues And Emerging Theories In Animal Cognition | Type | Journal Article | ||
| Year | 1999 | Publication | Annual Review of Psychology | Abbreviated Journal | |
| Volume | 50 | Issue | 1 | Pages | 683-705 |
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| Abstract |
Comparative cognition is an emerging interdisciplinary field with contributions from comparative psychology, cognitive/experimental and developmental psychology, animal learning, and ethology, and is poised to move toward greater understanding of animal and human information-processing, reasoning, memory, and the phylogenetic emergence of mind. This chapter highlights some current issues and discusses four areas within comparative cognition that are yielding new approaches and hypotheses for studying basic conceptual capacities in nonhuman species. These include studies of imitation, tool use, mirror self-recognition, and the potential for attribution of mental states by nonhuman animals. Though a very old question in psychology, the study of imitation continues to provide new avenues for examining the complex relationships among and between the levels of imitative behaviors exhibited by many species. Similarly, recent work in animal tool use, mirror self-recognition (with all its contentious issues), and recent attempts to empirically study the potential for attributional capacities in nonhumans, all continue to provide fresh insights and novel paradigms for addressing the defining characteristics of these complex phenomena. | ||||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ Boysen1999 | Serial | 2973 | ||
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| Author | Venter, G.J.; Koekemoer, J.J.O.; Paweska, J.T. | ||||
| Title | Investigations on outbreaks of African horse sickness in the surveillance zone in South Africa | Type | Journal Article | ||
| Year | 2006 | Publication | Revue Scientifique et Technique (International Office of Epizootics) | Abbreviated Journal | Rev Sci Tech |
| Volume | 25 | Issue | 3 | Pages | 1097-1109 |
| Keywords | African Horse Sickness/*epidemiology; African horse sickness virus/genetics/*isolation & purification; Animals; Ceratopogonidae/*virology; Disease Outbreaks/*veterinary; Horses; Insect Vectors/*virology; Prevalence; Sentinel Surveillance/veterinary; South Africa/epidemiology | ||||
| Abstract |
Confirmed outbreaks of African horse sickness (AHS) occurred in the surveillance zone of the Western Cape in 1999 and 2004, both of which led to a two-year suspension on the export of horses. Light trap surveys in the outbreak areas showed that known vector competent Culicoides species, notably C. imicola, were abundant and present in numbers equal to those in the traditional AHS endemic areas. Isolations of AHS virus serotypes 1 and 7, equine encephalosis virus, and bluetongue virus from field-collected C. imicola in the surveillance zone demonstrated that this species was highly competent and could transmit viruses belonging to different serogroups of the Orbivirus genus. Molecular identification of recovered virus isolates indicated that at least two incursions of AHS into the surveillance zone had taken place in 2004. The designation of an AHS-free zone in the Western Cape remains controversial since it can be easily compromised, as evidenced by the two recent outbreaks. In light of the results reported in the present study, the policy of maintaining a large population of unvaccinated horses in the surveillance zone should be reconsidered, as it leaves them vulnerable to infection with AHS virus, which is the most pathogenic of all equine viruses. | ||||
| Address | Agricultural Research Council-Onderstepoort Veterinary Institute, Private Bag X5, Onderstepoort, 0110 South Africa | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0253-1933 | ISBN | Medium | ||
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| Notes | PMID:17361773 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 2355 | ||
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| Author | Siniscalchi, M.; McFarlane, J.R.; Kauter, K.G.; Quaranta, A.; Rogers, L.J. | ||||
| Title | Cortisol levels in hair reflect behavioural reactivity of dogs to acoustic stimuli | Type | Journal Article | ||
| Year | 2013 | Publication | Research in Veterinary Science | Abbreviated Journal | |
| Volume | 94 | Issue | 1 | Pages | 49-54 |
| Keywords | Dogs; Behaviour; Cortisol; Hair; Acoustic stimuli | ||||
| Abstract |
Cortisol levels in hair samples were examined in fourteen domestic dogs and related to the dogs’ responses to different acoustic stimuli. Stimuli were playbacks of species-typical vocalizations recorded during three different situations (“disturbance”, “isolation” and “play” barks) and the sounds of a thunderstorm. Hair samples were collected at 9:00 h and 17:00 h two weeks after the behavioural tests. Results showed that behavioural reactivity to playback of the various stimuli correlates with cortisol levels in hair samples collected at 9:00 h, and the same was the case for the separate measures of behaviour (i.e. hiding, running away, seeking attention from the tester, panting and lowering of the body posture). Hence, levels of cortisol in hair appear to reflect the dog’s chronic state of emotional reactivity, or temperament. | ||||
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| ISSN | 0034-5288 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5833 | ||
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| Author | Nagy, K.; Bodó, G.; Bárdos, G.; Harnos, A. | ||||
| Title | Is modified Forssell"s operation superior to cribbing collar in preventing crib-biting in horses? | Type | Conference Article | ||
| Year | 2008 | Publication | IESM 2008 | Abbreviated Journal | |
| Volume | Issue | Pages | |||
| Keywords | stereotypic behaviour, heart-rate variability, stress, equine welfare | ||||
| Abstract |
Crib-biting (wind-sucking) might be a coping response of the horses to the challenges of uncontrolled environmental events. Prevention of this stereotypic behaviour evokes physiological responses consistent with increased stress. Reducing the incidence of cribbiting, however, is important in order to prevent undesirable physical and behavioural consequences (tooth erosion, altered gut function, gastric inflammation/ulceration, colic, etc.). Common treatment of crib-biting is the application of a cribbing collar, which limits the flexion of the neck making this stereotypic movement uncomfortable and difficult. Another method, the modified Forssell“s operation, is becoming more and more popular amongst the horse owners. It is based on the removal of the muscles used in crib-biting (m.omohyoideus, m.sternohyoideus, m.sternothyrohyoideus) and the ventral branches of the spinal accessory nerves. Surveys on the success of this surgical procedure have revealed inconsistent results, and, contrary to the cribbing collar, its effect on the stress level have not been studied either. The aim of our study was to determine whether the modified Forssell”s procedure is superior to the cribbing collar treatment. Differences in stress management was tested by a crib-biting provoking test, in which surgically treated horses, crib-biting horses, crib-biting horses with cribbing collar, and normal horses (those showing no stereotypies), altogether 56 horses were compared. In this test, a food bucket had been placed out of the reach of the animal, from which titbits were given 3 times. Behaviour and heart rate variability (HRV) of the horses were recorded and analysed throughout the test. Hypotheses were tested by linear mixed model. According to our results, both prevention methods (collar or surgery) inhibited crib-biting successfully though not totally. Regarding behaviour and heart rate variability, horses prevented from crib-biting (by collar or surgery) differed significantly from crib-biting and normal horses but not from each other. Normal horses were usually trying to reach the food-bucket while present and were standing still afterwards, whereas the other three groups had not really made efforts to reach the bucket, spent less time with resting, and performed or tried crib-biting. During the stress-test, normal and crib-biting horses had shown good stress-adaptation to the challenge since their HRV, after an initial increase, returned to the basal value by the end. On the contrary, HRV of the two prevented groups remained elevated and showed large oscillations throughout. They had not found a successful coping behaviour either. Our results suggest that since prevention may significantly increase distress, the treatment in itself, without changing the motivation of the horse to perform the replacement behaviour – it seems to be unsatisfactory and insufficient. After prevention the motivation of the horse to perform crib-biting should be addressed. In addition, considering that prevention by collar and surgery had not resulted in any significant behavioural or physiological differences, the superiority of the modified Forssell"s procedure might be questioned. However, the surgery might be recommended if treatment with collar is ineffective. |
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| Address | Szent István University, Faculty of Veterinary Sciences, Budapest, István u. 2, H-1078, Hungary;Eötvös Loránd University, Department of Physiology and Neurobiology, Budapest, Pázmány P. stny. 1/C, H-1117, Hungary | ||||
| Corporate Author | Nagy, K. | Thesis | |||
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| Area | Expedition | Conference | IESM 2008 | ||
| Notes | Talk 15 min IESM 2008 | Approved | yes | ||
| Call Number | Equine Behaviour @ team @ | Serial | 4492 | ||
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| Author | Nagy, K.; Bodó, G.; Bárdos, G.; Harnos, A.; Kabai, P. | ||||
| Title | The effect of a feeding stress-test on the behaviour and heart rate variability of control and crib-biting horses (with or without inhibition) | Type | Journal Article | ||
| Year | 2009 | Publication | Applied Animal Behaviour Science | Abbreviated Journal | Appl. Anim. Behav. Sci. |
| Volume | 121 | Issue | 2 | Pages | 140-147 |
| Keywords | Stereotypic behaviour; Crib-biting; Modified Forssell's operation; Cribbing collar; Equine welfare; Stress coping | ||||
| Abstract |
Crib-biting is a form of oral stereotypy affecting 4-5% of horses. Once fixed, crib-biting is difficult to eliminate by behaviour therapy, however, its performance can be inhibited by collar or surgery treatment (modified Forssell's procedure). Although surgical intervention is widespread, the effects on stress coping in horses have not been studied. In the present study we evaluated changes in behaviour response and heart rate variability in 9 control, 10 crib-biting, 10 collar and 11 surgically treated horses in a feeding stress-test, in which a feeding-bowl was placed in front but out of the reach of the horses, from which tidbits were given 3 times. We found that stress triggers high oral activity, mainly cribbing in crib-biting horses, elevates other forms of oral activities in the inhibited groups and does not affect oral activities of controls. Instead of performing oral activities, control horses tended to target an unavailable feeding-bowl by pawing or head-tossing. Changes in stress level were indistinguishable in controls and crib-biters as heart rate variability returned to baseline values in both groups. In contrast, horses inhibited to perform crib-biting showed elevated stress level throughout the test period. Our results suggest that crib-biting may develop to cope with stress, and such coping function diminishes when inhibited. | ||||
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| ISSN | 0168-1591 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5091 | ||
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| Author | Piccione, G.; Caola, G.; Refinetti, R. | ||||
| Title | Temporal relationships of 21 physiological variables in horse and sheep | Type | Journal Article | ||
| Year | 2005 | Publication | Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology | Abbreviated Journal | Comp Biochem Physiol A Mol Integr Physiol |
| Volume | 142 | Issue | 4 | Pages | 389-396 |
| Keywords | Animals; Behavior, Animal/physiology; Blood Glucose/physiology; Body Temperature/*physiology; Circadian Rhythm/*physiology; Female; Horses/*physiology; Melatonin/blood/*physiology; Motor Activity/*physiology; Rectum/physiology; Sheep/*physiology; Time Factors | ||||
| Abstract |
Daily or circadian oscillation has been documented in a variety of physiological and behavioral processes. Although individual variables have been studied in great detail, very few studies have been conducted on the temporal relationships between the rhythms of different variables. It is not known whether the circadian pacemaker generates each and every rhythm individually or whether most rhythms are simply derived from a few clock-controlled rhythms. As a first step in elucidating this issue, 21 physiological variables were recorded simultaneously in horse and sheep. The results indicated that, in both species, different variables exhibit different degrees of daily rhythmicity and reach their daily peaks at different times of the day. The variables exhibiting strongest rhythmicity were locomotor activity, rectal temperature, and plasma concentrations of melatonin and glucose. Comparison of rhythmicity and acrophase in the various rhythms allowed inferences to be made about mechanisms of causation. | ||||
| Address | Dipartimento di Morfologia, Biochimica, Fisiologia e Produzioni Animali, Facolta di Medicina Veterinaria, Universita degli Studi di Messina, 98168 Messina, Italy | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 1095-6433 | ISBN | Medium | ||
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| Notes | PMID:16290083 | Approved | no | ||
| Call Number | Serial | 1884 | |||
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| Author | Regolin, L.; Tommasi, L.; Vallortigara, G. | ||||
| Title | Visual perception of biological motion in newly hatched chicks as revealed by an imprinting procedure | Type | Journal Article | ||
| Year | 2000 | Publication | Animal Cognition | Abbreviated Journal | Anim. Cogn. |
| Volume | 3 | Issue | 1 | Pages | 53-60 |
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| Abstract |
Day-old chicks were exposed to point-light animation sequences depicting either a walking hen or a rotating cylinder. On a subsequent free-choice test (experiment 1) the chicks approached the novel stimulus, irrespective of this being the hen or the cylinder. In order to obtain equivalent local motion vectors, in experiments 2 and 3 newly hatched chicks were exposed either to a point-light animation sequence depicting a walking hen, or to a positionally scrambled walking hen (i.e. an animation in which exactly the same set of dots in motion as that employed for the walking hen was presented, but with spatially randomized starting positions). Chicks tested on day 1 (experiment 2) or on day 2 (i.e. after a period in the dark following exposure on day 1 (experiment 3)) proved able to discriminate the two animation sequences: males preferentially approached the novel stimulus, females the familiar one. These results indicate that discrimination was not based on local motion vectors, but rather on the temporally integrated motion sequence. | ||||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 3314 | ||
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