Records |
Author |
de Waal, F.B. |
Title |
The integration of dominance and social bonding in primates |
Type |
Journal Article |
Year |
1986 |
Publication |
The Quarterly review of biology |
Abbreviated Journal |
Q Rev Biol |
Volume |
61 |
Issue |
4 |
Pages ![sorted by First Page field, descending order (down)](img/sort_desc.gif) |
459-479 |
Keywords |
Animals; Female; Humans; Male; *Object Attachment; *Primates; *Social Dominance |
Abstract |
Social dominance is usually viewed from the perspective of intragroup competition over access to limited resources. The present paper, while not denying the importance of such competition, discusses the dominance concept among monkeys and apes in the context of affiliative bonding, social tolerance, and the reconciliation of aggressive conflicts. Two basic proximate mechanisms are supposed to provide a link between dominance and interindividual affiliation, namely, formalization of the dominance relationship (i.e., unequivocal communication of status), and conditional reassurance (i.e., the linkage of friendly coexistence to formalization of the relationship). Ritualized submission is imposed upon losers of dominance struggles by winners; losers are offered a “choice” between continued hostility or a tolerant relationship with a clearly signalled difference in status. If these two social mechanisms are lacking, aggression is bound to have dispersive effects. In their presence, aggression becomes a well-integrated, even constructive component of social life. In some higher primates this process of integration has reached the stage where status differences are strongly attenuated. In these species, sharing and trading can take the place of overt competition. The views underlying this “reconciled hierarchy” model are only partly new, as is evident from a review of the ethological literature. Many points are illustrated with data on a large semi-captive colony of chimpanzees (Pan troglodytes), particularly data related to striving for status, reconciliation behavior, and general association patterns. These observations demonstrate that relationships among adult male chimpanzees cannot be described in terms of a dichotomy between affiliative and antagonistic tendencies. Male bonding in this species has not been achieved by an elimination of aggression, but by a set of powerful buffering mechanisms that mitigate its effects. Although female chimpanzees do exhibit a potential for bonding under noncompetitive conditions, they appear to lack the buffering mechanisms of the males. |
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English |
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ISSN |
0033-5770 |
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Notes |
PMID:3543991 |
Approved |
no |
Call Number |
refbase @ user @ |
Serial |
210 |
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Author |
Dreier, S.; van Zweden, J.S.; D'Ettorre, P. |
Title |
Long-term memory of individual identity in ant queens |
Type |
Journal Article |
Year |
2007 |
Publication |
Biology Letters |
Abbreviated Journal |
Biol Lett |
Volume |
3 |
Issue |
5 |
Pages ![sorted by First Page field, descending order (down)](img/sort_desc.gif) |
459-462 |
Keywords |
Aggression; Animals; Ants/*physiology; Conditioning, Operant; Evolution; Female; *Memory; *Recognition (Psychology); Social Dominance |
Abstract |
Remembering individual identities is part of our own everyday social life. Surprisingly, this ability has recently been shown in two social insects. While paper wasps recognize each other individually through their facial markings, the ant, Pachycondyla villosa, uses chemical cues. In both species, individual recognition is adaptive since it facilitates the maintenance of stable dominance hierarchies among individuals, and thus reduces the cost of conflict within these small societies. Here, we investigated individual recognition in Pachycondyla ants by quantifying the level of aggression between pairs of familiar or unfamiliar queens over time. We show that unrelated founding queens of P. villosa and Pachycondyla inversa store information on the individual identity of other queens and can retrieve it from memory after 24h of separation. Thus, we have documented for the first time that long-term memory of individual identity is present and functional in ants. This novel finding represents an advance in our understanding of the mechanism determining the evolution of cooperation among unrelated individuals. |
Address |
Institute of Biology, Department of Population Biology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark. sdreier@bi.ku.dk |
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ISSN |
1744-9561 |
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PMID:17594958 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4649 |
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Author |
Puppe, B. |
Title |
[Social dominance and rank relationships in domestic pigs: a critical review] |
Type |
Journal Article |
Year |
1996 |
Publication |
Berliner und Munchener Tierarztliche Wochenschrift |
Abbreviated Journal |
Berl Munch Tierarztl Wochenschr |
Volume |
109 |
Issue |
11-12 |
Pages ![sorted by First Page field, descending order (down)](img/sort_desc.gif) |
457-464 |
Keywords |
Animals; Animals, Domestic; Animals, Wild; Female; Male; Models, Psychological; *Social Behavior; *Social Dominance; Swine/*psychology |
Abstract |
Viewing dominance as an attribute of repeated agonistic interactions between two individuals, the present paper reviews theoretical approaches towards concepts of dominance, methods of measurement, and basic principles and problems connected with social dominance in domestic pigs. Domestic pigs are able to establish social organization structures during all stages of their ontogeny. According to definition, dominance relationships occur when a consistent asymmetry of the result of dyadic agonistic interactions can be assessed. This must not necessarily be connected immediately with a better availability of resources, or a high stability of existing dominance relationships, or a functional definition of dominance. When sociometric characteristics are calculated, it seems to be appropriate to use them for different levels of a biological system (individual, individual pair, group). Investigations of social behaviour and dominance in farm animals should take into account that mechanisms of social behaviour in confined environments are often carried out in parts only. Connections of the dominance concept with other concepts of behavioural regulation should be theoretically considered and further investigated by experimental studies. |
Address |
Forschungsbereich Physiologische Grundlagen der Tierhaltung des Forschungsinstituts fur die Biologie landwirtschaftlicher Nutztiere Dummerstorf-Rostock |
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German |
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Original Title |
Soziale Dominanz- und Rangbeziehungen beim Hausschwein: eine kritische Ubersicht |
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ISSN |
0005-9366 |
ISBN |
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Notes |
PMID:8999780 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2861 |
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Author |
Jordan, J. |
Title |
[Modern views on the structure and function of the vomeronasal (Jacobson's) organ in mammals] |
Type |
Journal Article |
Year |
1970 |
Publication |
Otolaryngologia Polska. The Polish Otolaryngology |
Abbreviated Journal |
Otolaryngol Pol |
Volume |
24 |
Issue |
4 |
Pages ![sorted by First Page field, descending order (down)](img/sort_desc.gif) |
457-462 |
Keywords |
Animals; Cats; Dogs; Guinea Pigs; Horses; Humans; Mice; Nasal Septum/anatomy & histology/blood supply/cytology/innervation/physiology; Nose/*anatomy & histology/blood supply/innervation/*physiology; Rabbits; Rats; Sheep; Smell |
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Polish |
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Original Title |
Obecne poglady na budowe i czynnosc narzadu lemieszowo-nosowego (Jacobsona) u ssakow |
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ISSN |
0030-6657 |
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Notes |
PMID:4918960 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4315 |
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Author |
Oakenfull, E.A.; Ryder, O.A. |
Title |
Mitochondrial control region and 12S rRNA variation in Przewalski's horse (Equus przewalskii) |
Type |
Journal Article |
Year |
1998 |
Publication |
Animal Genetics |
Abbreviated Journal |
Anim Genet |
Volume |
29 |
Issue |
6 |
Pages ![sorted by First Page field, descending order (down)](img/sort_desc.gif) |
456-459 |
Keywords |
Animals; DNA, Mitochondrial/*genetics; Female; *Genetic Variation; Horses/*genetics; Male; Pedigree; RNA, Ribosomal/*genetics |
Abstract |
Variation in the control region and the 12S rRNA gene of all surviving mitochondrial lineages of Przewalski's horse was investigated. Variation is low despite the present day population being descended from 13 individuals probably representing animals from three different regions of its range. Phylogenetic comparison of these sequences, with sequences for the domestic horse, does not resolve the ancestral status of either horse. |
Address |
Center for Reproduction of Endangered Species, Zoological Society of San Diego, CA 92112, USA |
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English |
Summary Language |
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ISSN |
0268-9146 |
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Notes |
PMID:9883508 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
5040 |
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Author |
Callinan, A.P. |
Title |
The ecology of the free-living stages of Trichostrongylus axei |
Type |
Journal Article |
Year |
1978 |
Publication |
International Journal for Parasitology |
Abbreviated Journal |
Int J Parasitol |
Volume |
8 |
Issue |
6 |
Pages ![sorted by First Page field, descending order (down)](img/sort_desc.gif) |
453-456 |
Keywords |
Animals; Ecology; Horses; Larva/growth & development; Sheep; Trichostrongyloidea/*growth & development |
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ISSN |
0020-7519 |
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Notes |
PMID:748218 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2697 |
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Author |
Holbrook, A.A. |
Title |
Biology of equine piroplasmosis |
Type |
Journal Article |
Year |
1969 |
Publication |
Journal of the American Veterinary Medical Association |
Abbreviated Journal |
J Am Vet Med Assoc |
Volume |
155 |
Issue |
2 |
Pages ![sorted by First Page field, descending order (down)](img/sort_desc.gif) |
453-454 |
Keywords |
Animals; Arthropod Vectors; Babesiosis/*epidemiology; Ecology; Epidemiology; Florida; Horse Diseases/*epidemiology; Horses; Ticks |
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English |
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ISSN |
0003-1488 |
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Notes |
PMID:5816130 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2740 |
Permanent link to this record |
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Author |
Wallner, B.; Brem, G.; Muller, M.; Achmann, R. |
Title |
Fixed nucleotide differences on the Y chromosome indicate clear divergence between Equus przewalskii and Equus caballus |
Type |
Journal Article |
Year |
2003 |
Publication |
Animal Genetics |
Abbreviated Journal |
Anim Genet |
Volume |
34 |
Issue |
6 |
Pages ![sorted by First Page field, descending order (down)](img/sort_desc.gif) |
453-456 |
Keywords |
Animals; Base Sequence; DNA, Mitochondrial/genetics; Genetic Variation/*genetics; Horses/classification/*genetics; Male; Molecular Sequence Data; Phylogeny; Probability; Species Specificity; Y Chromosome/*genetics |
Abstract |
The phylogenetic relationship between Equus przewalskii and E. caballus is often a matter of debate. Although these taxa have different chromosome numbers, they do not form monophyletic clades in a phylogenetic tree based on mtDNA sequences. Here we report sequence variation from five newly identified Y chromosome regions of the horse. Two fixed nucleotide differences on the Y chromosome clearly display Przewalski's horse and domestic horse as sister taxa. At both positions the Przewalski's horse haplotype shows the ancestral state, in common with the members of the zebra/ass lineage. We discuss the factors that may have led to the differences in mtDNA and Y-chromosomal observations. |
Address |
Institut fur Tierzucht und Genetik, Veterinarmedizinische Universitat Wien, Veterinarplatz, Wien, Austria. wallner@i122server.vu-wien.ac.at |
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English |
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Edition |
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ISSN |
0268-9146 |
ISBN |
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Notes |
PMID:14687077 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
5038 |
Permanent link to this record |
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Author |
Bystrom, A.; Roepstorff, L.; Johnston, C. |
Title |
Effects of draw reins on limb kinematics |
Type |
Journal Article |
Year |
2006 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
Volume |
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Issue |
36 |
Pages ![sorted by First Page field, descending order (down)](img/sort_desc.gif) |
452-456 |
Keywords |
Animals; Biomechanics; Exercise Test; Forelimb/physiology; Head/physiology; Hindlimb/physiology; Horses/*physiology; Humans; Movement/physiology; Neck/physiology; Physical Conditioning, Animal/*methods/*physiology; Weight-Bearing/physiology |
Abstract |
REASONS FOR PERFORMING STUDY: No data exist on the GRF-kinematics relation due to changes caused by equestrian interventions. HYPOTHESIS: Through the judicious use of draw reins the rider can influence the kinematics of the horse to meet stated goals of dressage training. Relating the results to previously published kinetic data of the same experiment implies a possible relationship between kinetics and kinematics. METHODS: The kinematics of 8 sound Swedish Warmblood horses were measured whilst the horses were being ridden with and without draw reins. Three conditions were evaluated: 1) draw reins only (DR), 2) combination of draw reins and normal reins (NR+DR) and 3) normal reins only (NR). RESULTS: Head and neck angles were significantly decreased by the draw rein but 4-5 times more so for DR when with NR+DR. The forelimb position at hoof lift-off was significantly more caudal with DR. In the hind limb the hip joint extended more quickly and the hock joint flexed more with NR+DR than with NR. Compared to DR the hip joint angular pattern was not significantly different, but the pelvis was more horizontal. CONCLUSION: Riding with a draw rein can have significant influence on the kinematics of the horse. Some of the observed changes can be coupled to changes in kinetics. The hock joint angle seems to be a fairly reliable indicator of load on the hind limb and the angle of femur appears important for hind limb propulsion, when considered in conjunction with the orientation of the pelvis. POTENTIAL RELEVANCE: These findings are important for riders and trainers, as kinematic changes are what trainers observe. It is thereby important to ascertain which kinematic changes are consistently coupled to changes in kinetics in order for trainers to be able to judge correctly the success of intended goals. Further studies are warranted to validate and confirm suggested relationships between kinetics and kinematics. |
Address |
Department of Equine Studies, Swedish University of Agricultural Sciences, S-750 07 Uppsala, Sweden |
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English |
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PMID:17402465 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3701 |
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Author |
Hirota, S.; Suzuki, M.; Watanabe, Y. |
Title |
Hydrophobic effect of trityrosine on heme ligand exchange during folding of cytochrome c |
Type |
Journal Article |
Year |
2004 |
Publication |
Biochemical and Biophysical Research Communications |
Abbreviated Journal |
Biochem Biophys Res Commun |
Volume |
314 |
Issue |
2 |
Pages ![sorted by First Page field, descending order (down)](img/sort_desc.gif) |
452-458 |
Keywords |
Amino Acids/chemistry; Animals; Cytochromes c/*chemistry; Heme/*chemistry; Histidine/chemistry; Horses; Hydrogen-Ion Concentration; Kinetics; Ligands; Myocardium/chemistry; Peptides/chemistry; Protein Folding; Spectrophotometry; Spectrum Analysis, Raman; Tyrosine/*analogs & derivatives/*chemistry |
Abstract |
Effect of a hydrophobic peptide on folding of oxidized cytochrome c (cyt c) is studied with trityrosine. Folding of cyt c was initiated by pH jump from 2.3 (acid-unfolded) to 4.2 (folded). The Soret band of the 2-ms transient absorption spectrum during folding decreased its intensity and red-shifted from 397 to 400 nm by interaction with trityrosine, whereas tyrosinol caused no significant effect. The change in the transient absorption spectrum by interaction with trityrosine was similar to that obtained with 100 mM imidazole, which showed that the population of the intermediate His/His coordinated species increased during folding of cyt c by interaction with trityrosine. The absorption change was biphasic, the fast phase (82+/-9s(-1)) corresponding to the transition from the His/H(2)O to the His/Met coordinated species, whereas the slow phase (24+/-3s(-1)) from His/His to His/Met. By addition of trityrosine, the relative ratio of the slow phase increased, due to increase of the His/His species at the initial stage of folding. According to the resonance Raman spectra of cyt c, the high-spin 6-coordinate and low-spin 6-coordinate species were dominated at pH 2.3 and 4.2, respectively, and these species were not affected by addition of trityrosine. These results demonstrated that the His/His species increased by interaction with trityrosine at the initial stage of cyt c folding, whereas the heme coordination structure was not affected by trityrosine when the protein was completely unfolded or folded. Hydrophobic peptides thus may be useful to study the effects of hydrophobic interactions on protein folding. |
Address |
Department of Physical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, 607-8414 Kyoto, Japan. hirota@mb.kyoto-phu.ac.jp |
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Edition |
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ISSN |
0006-291X |
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Notes |
PMID:14733927 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3777 |
Permanent link to this record |