| Records |
Author  |
Boucher, J.M.; Hanosset, R.; Augot, D.; Bart, J.M.; Morand, M.; Piarroux, R.; Pozet-Bouhier, F.; Losson, B.; Cliquet, F. |
| Title |
Detection of Echinococcus multilocularis in wild boars in France using PCR techniques against larval form |
Type |
Journal Article |
| Year |
2005 |
Publication |
Veterinary Parasitology |
Abbreviated Journal |
Vet Parasitol |
| Volume |
129 |
Issue |
3-4 |
Pages |
259-266 |
| Keywords |
Animals; Base Sequence; DNA, Helminth/chemistry/genetics; Echinococcosis/parasitology/pathology/*veterinary; Echinococcus multilocularis/*isolation & purification; Electron Transport Complex IV/chemistry/genetics; France; Histocytochemistry/veterinary; Liver/parasitology/pathology; Male; Molecular Sequence Data; Polymerase Chain Reaction/veterinary; Sequence Alignment; Sus scrofa/*parasitology; Swine Diseases/*parasitology/pathology |
| Abstract |
Recently, new data have been collected on the distribution and ecology of Echinococcus multilocularis in European countries. Different ungulates species such as pig, goat, sheep, cattle and horse are known to host incomplete development of larval E. multilocularis. We report a case of E. multilocularis portage in two wild boars from a high endemic area in France (Department of Jura). Histological examination was performed and the DNA was isolated from hepatic lesions then amplified by using three PCR methods in two distinct institutes. Molecular characterisation of PCR products revealed 99% nucleotide sequence homology with the specific sequence of the U1 sn RNA gene of E. multilocularis, 99 and 99.9% nucleotide sequence homology with the specific sequence of the cytochrome oxydase gene of Echinococcus genus and 99.9% nucleotide sequence homology with a genomic DNA sequence of Echinococcus genus for the first and the second wild boar, respectively. |
| Address |
AFSSA Nancy, Laboratoire d'Etudes et de Recherches sur la Rage et la Pathologie des Animaux Sauvages, Domaine de Pixerecourt-B.P. 9, Malzeville F 54220, France |
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0304-4017 |
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| Notes |
PMID:15845281 |
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no |
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Equine Behaviour @ team @ |
Serial |
2629 |
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| Author |
Bovet, D.; Vauclair, J.; Blaye, A. |
| Title |
Categorization and abstraction abilities in 3-year-old children: a comparison with monkey data |
Type |
Journal Article |
| Year |
2005 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
8 |
Issue |
1 |
Pages |
53-59 |
| Keywords |
Animals; Child Development; Child, Preschool; *Classification; *Concept Formation; *Discrimination Learning; Female; *Form Perception; Humans; Male; Papio; Pattern Recognition, Visual; *Problem Solving; Species Specificity |
| Abstract |
Three-year-old children were tested on three categorization tasks of increasing levels of abstraction (used with adult baboons in an earlier study): the first was a conceptual categorization task (food vs toys), the second a perceptual matching task (same vs different objects), and the third a relational matching task in which the children had to sort pairs according to whether or not the two items belonged to the same or different categories. The children were tested using two different procedures, the first a replication of the procedure used with the baboons (pulling one rope for a category or a relationship between two objects, and another rope for the other category or relationship), the second a task based upon children's prior experiences with sorting objects (putting in the same box objects belonging to the same category or a pair of objects exemplifying the same relation). The children were able to solve the first task (conceptual categorization) when tested with the sorting into boxes procedure, and the second task (perceptual matching) when tested with both procedures. The children were able to master the third task (relational matching) only when the rules were clearly explained to them, but not when they could only watch sorting examples. In fact, the relational matching task without explanation requires analogy abilities that do not seem to be fully developed at 3 years of age. The discrepancies in performances between children tested with the two procedures, with the task explained or not, and the discrepancies observed between children and baboons are discussed in relation to differences between species and/or problem-solving strategies. |
| Address |
Center for Research in Psychology of Cognition, Language and Emotion, Universite de Provence, Aix-en-Provence, France. dbovet@u-paris10.fr |
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1435-9448 |
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PMID:15300466 |
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no |
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Equine Behaviour @ team @ |
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2516 |
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| Author |
Boyd, L.; Keiper, R. |
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Behavioural ecology of feral horses |
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Book Chapter |
| Year |
2005 |
Publication |
The domestic horse: the origins, development, and management of its behaviour |
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Cambridge University Press |
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Cambridge |
Editor |
Mills, D. S.; McDonnell S. M. |
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Equine Behaviour @ team @ |
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5439 |
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| Author |
Brosnan, S.F.; de Waal, F.B.M. |
| Title |
Responses to a simple barter task in chimpanzees, Pan troglodytes |
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Journal Article |
| Year |
2005 |
Publication |
Primates |
Abbreviated Journal |
Primates |
| Volume |
46 |
Issue |
3 |
Pages |
173-182 |
| Keywords |
Analysis of Variance; Animals; Choice Behavior/*physiology; Conditioning (Psychology)/physiology; Learning/*physiology; Pan troglodytes/*physiology; Reward; Sex Factors; *Social Behavior; *Token Economy |
| Abstract |
Chimpanzees (Pan troglodytes) frequently participate in social exchange involving multiple goods and services of variable value, yet they have not been tested in a formalized situation to see whether they can barter using multiple tokens and rewards. We set up a simple barter economy with two tokens and two associated rewards and tested chimpanzees on their ability to obtain rewards by returning the matching token in situations in which their access to tokens was unlimited or limited. Chimpanzees easily learned to associate value with the tokens, as expected, and did barter, but followed a simple strategy of favoring the higher-value token, regardless of the reward proffered, instead of a more complex but more effective strategy of returning the token that matched the reward. This response is similar to that shown by capuchin monkeys in our previous study. We speculate that this response, while not ideal, may be sufficient to allow for stability of the social exchange system in these primates, and that the importance of social barter to both species may have led to this convergence of strategies. |
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Living Links, Yerkes National Primate Research Center, Atlanta, GA 30322, USA. sbrosna@emory.edu |
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0032-8332 |
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PMID:15824938 |
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no |
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refbase @ user @ |
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167 |
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| Author |
Brosnan, S.F.; Schiff, H.C.; de Waal, F.B.M. |
| Title |
Tolerance for inequity may increase with social closeness in chimpanzees |
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Journal Article |
| Year |
2005 |
Publication |
Proceedings. Biological sciences / The Royal Society |
Abbreviated Journal |
Proc Biol Sci |
| Volume |
272 |
Issue |
1560 |
Pages |
253-258 |
| Keywords |
Analysis of Variance; Animals; *Attitude; Group Processes; Pan troglodytes/*psychology; Reward; *Social Behavior; Socioeconomic Factors |
| Abstract |
Economic decision-making depends on our social environment. Humans tend to respond differently to inequity in close relationships, yet we know little about the potential for such variation in other species. We examine responses to inequity in several groups of chimpanzees (Pan troglodytes) in a paradigm similar to that used previously in capuchin monkeys (Cebus apella). We demonstrate that, like capuchin monkeys, chimpanzees show a response to inequity of rewards that is based upon the partner receiving the reward rather than the presence of the reward alone. However, we also found a great amount of variation between groups tested, indicating that chimpanzees, like people, respond to inequity in a variable manner, which we speculate could be caused by such variables as group size, the social closeness of the group (as reflected in length of time that the group has been together) and group-specific traditions. |
| Address |
Yerkes National Primate Research Center, Emory University, 954 North Gatewood Drive, Atlanta, GA 30329, USA. sbrosna@emory.edu |
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0962-8452 |
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PMID:15705549 |
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refbase @ user @ |
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169 |
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Burch, J.W.; Layne, G.A.; Follmann, E.H.; Rexstad, E.A. |
| Title |
Evaluation of Wolf Density Estimation from Radiotelemetry Data |
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Journal Article |
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2005 |
Publication |
Wildl Soc Bull |
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33 |
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Equine Behaviour @ team @ Burch2005 |
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6477 |
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Bykov, S.; Lednev, I.; Ianoul, A.; Mikhonin, A.; Munro, C.; Asher, S.A. |
| Title |
Steady-state and transient ultraviolet resonance Raman spectrometer for the 193-270 nm spectral region |
Type |
Journal Article |
| Year |
2005 |
Publication |
Applied Spectroscopy |
Abbreviated Journal |
Appl Spectrosc |
| Volume |
59 |
Issue |
12 |
Pages |
1541-1552 |
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Animals; Equipment Design; Equipment Failure Analysis; Horses; Kinetics; Metmyoglobin/*analysis; Myocardium/*metabolism; Reproducibility of Results; Sensitivity and Specificity; Spectrophotometry, Ultraviolet/*instrumentation/methods; Spectrum Analysis, Raman/*instrumentation/methods |
| Abstract |
We describe a state-of-the-art tunable ultraviolet (UV) Raman spectrometer for the 193-270 nm spectral region. This instrument allows for steady-state and transient UV Raman measurements. We utilize a 5 kHz Ti-sapphire continuously tunable laser (approximately 20 ns pulse width) between 193 nm and 240 nm for steady-state measurements. For transient Raman measurements we utilize one Coherent Infinity YAG laser to generate nanosecond infrared (IR) pump laser pulses to generate a temperature jump (T-jump) and a second Coherent Infinity YAG laser that is frequency tripled and Raman shifted into the deep UV (204 nm) for transient UV Raman excitation. Numerous other UV excitation frequencies can be utilized for selective excitation of chromophoric groups for transient Raman measurements. We constructed a subtractive dispersion double monochromator to minimize stray light. We utilize a new charge-coupled device (CCD) camera that responds efficiently to UV light, as opposed to the previous CCD and photodiode detectors, which required intensifiers for detecting UV light. For the T-jump measurements we use a second camera to simultaneously acquire the Raman spectra of the water stretching bands (2500-4000 cm(-1)) whose band-shape and frequency report the sample temperature. |
| Address |
Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA |
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0003-7028 |
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PMID:16390595 |
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no |
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Equine Behaviour @ team @ |
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3767 |
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Call, J.; Carpenter, M.; Tomasello, M. |
| Title |
Copying results and copying actions in the process of social learning: chimpanzees (Pan troglodytes) and human children (Homo sapiens) |
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Journal Article |
| Year |
2005 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
| Volume |
8 |
Issue |
3 |
Pages |
151-163 |
| Keywords |
Animals; Child Behavior; Child, Preschool; *Concept Formation; Female; Humans; *Imitative Behavior; *Learning; Male; Pan troglodytes; *Problem Solving; Psychomotor Performance; Random Allocation; *Social Environment; Species Specificity |
| Abstract |
There is currently much debate about the nature of social learning in chimpanzees. The main question is whether they can copy others' actions, as opposed to reproducing the environmental effects of these actions using their own preexisting behavioral strategies. In the current study, chimpanzees (Pan troglodytes) and human children (Homo sapiens) were shown different demonstrations of how to open a tube-in both cases by a conspecific. In different experimental conditions, demonstrations consisted of (1) action only (the actions necessary to open the tube without actually opening it); (2) end state only (the open tube, without showing any actions); (3) both of these components (in a full demonstration); or (4) neither of these components (in a baseline condition). In the first three conditions subjects saw one of two different ways that the tube could open (break in middle; caps off ends). Subjects' behavior in each condition was assessed for how often they opened the tube, how often they opened it in the same location as the demonstrator, and how often they copied the demonstrator's actions or style of opening the tube. Whereas chimpanzees reproduced mainly the environmental results of the demonstrations (emulation), human children often reproduced the demonstrator's actions (imitation). Because the procedure used was similar in many ways to the procedure that Meltzoff (Dev Psych 31:1, 1995) used to study the understanding of others' unfulfilled intentions, the implications of these findings with regard to chimpanzees' understanding of others' intentions are also discussed. |
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Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103, Leipzig, Germany. call@eva.mpg.de |
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1435-9448 |
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PMID:15490290 |
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no |
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Equine Behaviour @ team @ |
Serial |
2504 |
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| Author |
Callow, N.; Waters, A. |
| Title |
The effect of kinesthetic imagery on the sport confidence of flat-race horse jockeys |
Type |
Journal Article |
| Year |
2005 |
Publication |
Psychology of Sport and Exercise |
Abbreviated Journal |
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| Volume |
6 |
Issue |
4 |
Pages |
443-459 |
| Keywords |
Vmiq; Miq; Multiple-baseline design; Itsacorr |
| Abstract |
Objectives The primary objective was to examine the efficacy of a kinesthetic imagery intervention on the sport confidence of three professional flat-race horse jockeys, with the secondary objective of examining the relationship between performance and sport confidence.Design A multiple-baseline across participants research design was employed.Methods The State Sport Confidence Inventory [SSCI; Vealey, R.S. (1986). Conceptualization of sport confidence and competitive orientation: Preliminary investigation and instrument development. Journal of Sport Psychology, 8, 221-246.] was administered twice weekly, prior to a total of 23, 25, and 27 races for participants 1, 2, and 3, respectively. In addition, performance data were collected on each SSCI data collection day. The kinesthetic imagery intervention consisted of six kinesthetic imagery sessions, twice weekly during a 3-week period. The intervention was introduced after race 7, 9, and 11 for participants 1, 2, and 3, respectively. Approximately, 1 week after the end of the data collection, participants completed a postexperimental questionnaire.Results ITSACORR [Crosbie, J. (1993). Interrupted time-series analysis with brief single-subject data. Journal of Consulting and Clinical Psychology, 6, 966-974.] was employed to analyze the sport confidence data. The results of ITSACORR along with visual inspection, demonstrated a significant increase in sport confidence for participants 1 and 3, and a non-significant increase for participant 2. Kendall's tau b correlations failed to find a significant relationship between performance and confidence.Conclusions The results are discussed in terms of the value of kinesthetic imagery as a tool for athletes to practice and develop. Furthermore, this study demonstrates the ability of ITSACORR to provide a statistical analysis for serially dependent single-subject data. |
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Equine Behaviour @ team @ |
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3698 |
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| Author |
Cant, M.A.; Field, J. |
| Title |
Helping effort in a dominance hierarchy |
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Journal Article |
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2005 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
Behav. Ecol. |
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16 |
Issue |
4 |
Pages |
708-715 |
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In many cooperatively breeding species, group members form a dominance hierarchy or queue to inherit the position of breeder. Models aimed at understanding individual variation in helping behavior, however, rarely take into account the effect of dominance rank on expected future reproductive success and thus the potential direct fitness costs of helping. Here we develop a kin-selection model of helping behavior in multimember groups in which only the highest ranking individual breeds. Each group member can invest in the dominant's offspring at a cost to its own survivorship. The model predicts that lower ranked subordinates, who have a smaller probability of inheriting the group, should work harder than higher ranked subordinates. This prediction holds regardless of whether the intrinsic mortality rate of subordinates increases or decreases with rank. The prediction does not necessarily hold, however, where the costs of helping are higher for lower ranked individuals: a situation that may be common in vertebrates. The model makes two further testable predictions: that the helping effort of an individual of given rank should be lower in larger groups, and the reproductive success of dominants should be greater where group members are more closely related. Empirical evidence for these predictions is discussed. We argue that the effects of rank on stable helping effort may explain why attempts to correlate individual helping effort with relatedness in cooperatively breeding species have met with limited success. |
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10.1093/beheco/ari051 |
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