| Records |
| Author |
Kolter, L.; Zimmermann, W. |
| Title |
Social behaviour of Przewalski horses (Equus p. przewalskii) in the Cologne Zoo and its consequences for management and housing |
Type |
Journal Article |
| Year |
1988 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
| Volume |
21 |
Issue |
1-2 |
Pages |
117-145 |
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| Abstract |
Between 1977 and 1986, two actual rank changes and two unsuccessful attempts occurred among the mares of the Cologne herd. The stallion was at first a low-ranking individual, but attained a dominant position during the last 3 years. At this time he started to split his group and thus to affect attachment relationships among his mares. During his absence of half a year, new bonds resulted and disappeared again some months after his return. Foals were tolerated by the sire for a long time. His behaviour to young, sub-adult mares varied with the individual. Protection of sub-adult mares by adult mares against the stallion's attacks may occur. Young mares protect and guard strange foals from their very first day. Management steps to cope with social and feeding problems consisted of enlargement and adding complexity to the enclosure, the establishment of more feeding sites, building a stable and temporary removal of the stallion. |
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Equine Behaviour @ team @ |
Serial |
2332 |
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| Author |
Berger, J.; Cunningham, C. |
| Title |
Size-Related Effects on Search Times in North American Grassland Female Ungulates |
Type |
Journal Article |
| Year |
1988 |
Publication |
Ecology |
Abbreviated Journal |
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| Volume |
69 |
Issue |
1 |
Pages |
177-183 |
| Keywords |
no keywords available |
| Abstract |
Feeding and searching (= vigilance) rates arise as a result of many interrelated factors including trophic level, diet, reproductive condition, sex, habitat, body mass, and potential predation pressure. Because of unique ecological conditions in which the confounding influences of all but two of these variables could be minimized, we examined the hypothesis that body mass alone accounts for interspecific differences in search times, and tested it with females of four sympatric native North American ungulates (Bison bison, Antilocapra americana, Ovis canadensis, and Odocoileus hemionus). When the effects of group size were controlled, smaller bodied species were more vigilant (per unit body mass) than larger ones. However, search times (ST) also scaled to body mass, and between 81 and 97% of the ST variance was explained by either exponential or power functions. To remove the potential bias that predators exert different influences on species of varying size, search times of bison in areas with and without their major predator, wolves (Canis lupus), were contrasted; search times did not differ between sites. Our results highlight the importance of designing field research that controls for confounding variables prior to attempting to scale behavioral processes to ecological events. See full-text article at JSTOR |
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Ecological Society of America |
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English |
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0012-9658 |
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Equine Behaviour @ team @ |
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2233 |
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| Author |
Berger, J, |
| Title |
Social systems, resources, and phylogenetic inertia: an experimental test and its limitations |
Type |
Book Chapter |
| Year |
1988 |
Publication |
Ecology of Social Behavior |
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Issue |
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Pages |
157-186 |
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Academic Press |
Place of Publication |
San Diego |
Editor |
Slobochikoff, C.N. |
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Original Title |
Ecology of Social Behavior |
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no |
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Equine Behaviour @ team @ |
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2234 |
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Holzapfel, W.H.; Botha, S.J. |
| Title |
Physiology of Sporolactobacillus strains isolated from different habitats and the indication of in vitro antagonism against Bacillus species |
Type |
Journal Article |
| Year |
1988 |
Publication |
International Journal of Food Microbiology |
Abbreviated Journal |
Int J Food Microbiol |
| Volume |
7 |
Issue |
2 |
Pages |
161-168 |
| Keywords |
Animals; Bacillaceae/isolation & purification/*physiology; Bacillus/*physiology; Cattle; *Ecology; Feces/*microbiology; Food Microbiology; Horses; Sewage; Sheep; Water Microbiology |
| Abstract |
In an ecological study only low numbers of Sporolactobacillus were found in habitats such as the faeces of herbivores, the rumen of cattle and the final waste water of an abattoir. Their presence in the final waste water of an abattoir indicates their possible association with food, and, more specifically, with meat. Differences were found in some physiological characteristics. One isolate (L2404) differed from the authentic Sporolactobacillus ATCC 15538 by its inability to ferment inulin, its growth in presence of 6.5% NaCl and in 0.2% tellurite, by the isomer(s) of lactic acid produced and the mol% G + G in the DNA. One Sporolactobacillus isolate (L2407) showed antagonism against Bacillus cereus, Bacillus cereus var, mycoides, Bacillus megaterium and Bacillus subtilis. |
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Department of Microbiology and Plant Pathology, University of Pretoria, Republic of South Africa |
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English |
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| ISSN |
0168-1605 |
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| Notes |
PMID:3275317 |
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no |
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Equine Behaviour @ team @ |
Serial |
2675 |
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| Author |
Kozarovitskii, L.B. |
| Title |
[Further comment on the distinction between humans and animals] |
Type |
Journal Article |
| Year |
1988 |
Publication |
Nauchnye Doklady Vysshei Shkoly. Biologicheskie Nauki |
Abbreviated Journal |
Nauchnye Doki Vyss Shkoly Biol Nauki |
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Issue |
3 |
Pages |
42-45 |
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Animals; Consciousness; Evolution; Humans; Mental Processes; *Philosophy; Thinking |
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The problem of mind is considered in the aspect of natural scientific and philosophical problem of distinction between human and animal. The widespread confusion of the terms “rudiments”, “elements” of specifically human properties in animals and “biological prerequisites” of these properties are critically analysed. The idea is formulated according to which only in the process of anthropogenesis the rudiments of new social property--mind, conscience--could appear in the developing human beings. |
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Russian |
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Original Title |
Eshche raz o grani mezhdu chelovecheskim i zhivotnym |
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0470-4606 |
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PMID:3382706 |
Approved |
no |
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Equine Behaviour @ team @ |
Serial |
2800 |
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| Author |
Galdikas BMF |
| Title |
Orangutan diet, range, and activity at Tanjung Puting, Central Borneo |
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Journal Article |
| Year |
1988 |
Publication |
Int. J. Primatol. |
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9 |
Issue |
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Pages |
1 |
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no |
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Equine Behaviour @ team @ |
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2996 |
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| Author |
Gopnik A, G.P. |
| Title |
Knowing how you know: young children's ability to identify and remember the sources of their beliefs |
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Journal Article |
| Year |
1988 |
Publication |
Child Dev. |
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59 |
Issue |
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Pages |
1366 |
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no |
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Equine Behaviour @ team @ |
Serial |
3001 |
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| Author |
Sugiyama Y; Koman J; Bhoye Show M |
| Title |
Ant-catching wands of wild chimpanzees at Bossou, Guinea |
Type |
Journal Article |
| Year |
1988 |
Publication |
Folia Primatol. |
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51 |
Issue |
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Pages |
56 |
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no |
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Equine Behaviour @ team @ |
Serial |
3042 |
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| Author |
Wimmer H; Hogrefe GJ; Perner J |
| Title |
Children's understanding of informational access as a source of knowledge |
Type |
Journal Article |
| Year |
1988 |
Publication |
Child Dev. |
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59 |
Issue |
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Pages |
386 |
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no |
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Equine Behaviour @ team @ |
Serial |
3050 |
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| Author |
Steinhoff, H.J. |
| Title |
A continuous wave laser T-jump apparatus and its application to chemical reactions in hemoglobin single crystals |
Type |
Journal Article |
| Year |
1988 |
Publication |
Journal of Biochemical and Biophysical Methods |
Abbreviated Journal |
J Biochem Biophys Methods |
| Volume |
15 |
Issue |
6 |
Pages |
319-330 |
| Keywords |
Animals; Chemistry; Crystallization; *Heat; *Hemoglobins; Horses/blood; *Lasers; Methemoglobin; Solutions; Thermodynamics; Thiocyanates |
| Abstract |
A laser temperature jump apparatus is constructed where the T-jump is achieved by means of the direct absorption of continuous laser radiation of low intensity by a solid sample. The final temperature in the irradiated volume element is reached when the absorbed radiation power equals the dissipation of heat by heat conduction. The time range from the beginning of irradiation to the stationary state depends on the geometry of the irradiated volume element and is less than 10 ms. The heating laser beam is simultaneously used to detect the relaxation to the new chemical equilibrium in the sample. Relaxation processes with relaxation rates between 10(2) s-1 and less than 10(-3) s-1 on samples with volumes less than 10(-3) mm3 may be investigated using this T-jump method. One application of this method is the determination of reaction rates of ligand reactions in hemoglobin single crystals. Rate constants obtained for the reaction of thiocyanate with crystallized horse methemoglobin are presented. |
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Institut fur Biophysik, Ruhr-Universitat Bochum, F.R.G |
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English |
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0165-022X |
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PMID:3379245 |
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no |
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Equine Behaviour @ team @ |
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3804 |
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