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Polyanskaya, A.I.; Ovchinnikov, V.V. |
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Title |
Rate of growth and size of the brain of the horse mackerel |
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Journal Article |
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Year |
1974 |
Publication |
The Soviet Journal of Ecology |
Abbreviated Journal |
Sov J Ecol |
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Volume |
4 |
Issue |
3 |
Pages |
256-257 |
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Keywords |
Animals; Body Weight; *Brain; Ecology; Fishes/*growth & development; Genetics, Population; Organ Size |
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0096-7807 |
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PMID:4825911 |
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Call Number |
Equine Behaviour @ team @ |
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2708 |
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Author |
Davies, R.B.; Clark, G.G. |
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Title |
Trypanosomes from elk and horse flies in New Mexico |
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Journal Article |
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Year |
1974 |
Publication |
Journal of Wildlife Diseases |
Abbreviated Journal |
J Wildl Dis |
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Volume |
10 |
Issue |
1 |
Pages |
63-65 |
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Keywords |
Animals; *Artiodactyla; Blood/microbiology; *Diptera; Ecology; *Insect Vectors; New Mexico; Trypanosoma/*isolation & purification; Trypanosomiasis/microbiology/*veterinary |
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0090-3558 |
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PMID:4810218 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2709 |
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Author |
Bourdin, P.; Laurent, A. |
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Title |
[Ecology of African horsesickness] |
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Journal Article |
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Year |
1974 |
Publication |
Revue d'Elevage et de Medecine Veterinaire des Pays Tropicaux |
Abbreviated Journal |
Rev Elev Med Vet Pays Trop |
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Volume |
27 |
Issue |
2 |
Pages |
163-168 |
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Keywords |
African Horse Sickness/*epidemiology/transmission; Animals; Disease Reservoirs/veterinary; Horses; Humans; Insect Vectors |
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French |
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Note sur l'ecologie de la peste equine africaine |
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0035-1865 |
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PMID:4619907 |
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Equine Behaviour @ team @ |
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2710 |
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Author |
McGrew WC |
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Title |
Tool use by wild chimpanzees in feeding upon driver ants |
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Journal Article |
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Year |
1974 |
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J. Hum. Evol. |
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3 |
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501 |
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Equine Behaviour @ team @ |
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3018 |
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Author |
Geist, V. |
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Title |
On the Relationship of Social Evolution and Ecology in Ungulates |
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Journal Article |
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Year |
1974 |
Publication |
Amer. Zool. |
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Volume |
14 |
Issue |
1 |
Pages |
205-220 |
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Abstract |
Much of the social behavior and organization of ungulates can be related to ecological parameters such as fiber content of forage, plant productivity, plant biomass, plant species diversity, productivity gradients, temporal and spatial fluctuations in productivity, habitat stability, food dispersion, three-dimensional structure of habitat, colonization, and predator density and diversity. These ecological variables can be linked via individual natural selection with the species' anti-predator strategies, emphasis on different channels of communication, relative frequency of damaging and non-damaging overt aggression, gregariousness and group structure, juvenile dispersal, home-range traditions, monogamy and polygamy, sexual dimorphism, territoriality, hierarchical rank structure, and plasticity of social structures. The ecological variables have primary manifestations which are behavior or which affect behavior, as well as secondary manifestations affecting behavior. There are logical links between the hypothesis linking ecology and behavior discussed here with some principles from bioenergetics, zoogeography, and paleontology. Although links do exist between ecology and behavior, they nevertheless represent distinct realms of natural selection in which social behavior appears as the more conservative element. The theoretical basis for this is discussed. |
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Call Number |
Equine Behaviour @ team @ |
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4261 |
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Author |
Jarman, P.J . |
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Title |
The social behaviour of antelope in relation to their ecology |
Type |
Journal Article |
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Year |
1974 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
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Volume |
48 |
Issue |
1-4 |
Pages |
213-267 |
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The types of social organisation displayed by the African antelope species have been assigned in this paper to five classes, distinguished largely by the strategies used by the reproductively active males in securing mating rights, and the effects of those strategies on other social castes. The paper attempts to show that these strategies are appropriate to each class because of the effects of other, ecological, aspects of their ways of life. The paper describes different feeding styles among antelope, in terms of selection of food items and coverage of home ranges. It argues that these feeding styles bear a relationship to maximum group size of feeding animals through the influence of dispersion of food items upon group cohesion. The feeding styles also bear a relationship to body size and to habitat choice, both of which influence the antelope species' antipredator behaviour. Thus feeding style is related to anti-predator behaviour which, in many species, influences minimum group size. Group size and the pattern of movement over the annual home range affect the likelihood of females being found in a given place at a given time, and it is this likelihood which, to a large extent, determines the kind of strategy a male must employ to achieve mating rights. The effects of the different strategies employed by males can be seen in such aspects of each species' biology as sexual dimorphism, adult sex ratio, and differential distribution of the sexes. |
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Equine Behaviour @ team @ |
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4264 |
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Author |
Andrew, R.J. |
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Title |
Changes in visual responsiveness following intercollicular lesions and their effects on avoidance and attack |
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Journal Article |
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Year |
1974 |
Publication |
Brain, Behavior and Evolution |
Abbreviated Journal |
Brain Behav Evol |
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10 |
Issue |
4-5 |
Pages |
400-424 |
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Keywords |
Animals; Chickens; Humans; Male; Mutism; Superior Colliculi/*physiology; Tectum Mesencephali; Testosterone; Visual Fields; Vocalization, Animal |
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In the normal chick, conspicuous visual stimuli induce targetting and pecking together, with vocalization. All three are abolished by lesion of the intercollicular area (ICo) or of connections passing through its medial margin. After such lesions, chicks also cease to treat significant visual stimuli as if they were startling and exciting, and may delay response as a result. However, they are still able to recognise, orient accurately to, and respond appropriately to, a variety of complex visual stimuli (e.g. food grains, copulation object). In addition, they are little affected by strange surroundings. Lesion evidence suggests the mammalian subcollicular area to have similar functions to the ICo and to be homologous with it. A route (present in bird), which is well-known in mammals for its association with threat, defense and escape evoked by strange and frightening objects (amygdala-diencephalic periventricular system-central mesencephalic grey, A-DPS-CMG) is stimuli via the 2 ICo (subcollicular area). Two different mechanisms may be involved caudal to the ICo. One consists of tectal afferents which might modulate the evocation of targetting, pecking and other responses via the tectum. The other is the predorsal system of tectal efferents which may mediate such responses. Classical syndromes of tameness and unresponsiveness produced by various interruptions of the A-DPS-CMG route may depend on interruption of connections to these midbrain mechanisms. Attack is depressed by ICo lesions as one aspect of reduced responsiveness to conspicuous and startling visual stimuli. Avoidance, which is apparently mediated by a separate system, much as in Anura, is facilitated. |
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0006-8977 |
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PMID:1169102 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4626 |
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Author |
Clutton-Brock, T.H. |
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Title |
Primate social organisation and ecology |
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Journal Article |
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Year |
1974 |
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Nature |
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Volume |
250 |
Issue |
5467 |
Pages |
539-542 |
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Attempts to relate interspecific differences in social organisation among primates to gross differences in habitat or diet type have been largely unsuccessful. This is probably partly because distantly related species have adapted to similar ecological situations in different ways and partly because much finer ecological differences are important. |
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10.1038/250539a0 |
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Equine Behaviour @ team @ |
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4730 |
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Author |
Altmann, J. |
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Title |
Observational Study of Behavior: Sampling Methods |
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Journal Article |
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Year |
1974 |
Publication |
Behaviour |
Abbreviated Journal |
Behaviour |
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49 |
Issue |
3-4 |
Pages |
227-266 |
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Seven major types of sampling for observational studies of social behavior have been found in the literature. These methods differ considerably in their suitability for providing unbiased data of various kinds. Below is a summary of the major recommended uses of each technique: In this paper, I have tried to point out the major strengths and weaknesses of each sampling method. Some methods are intrinsically biased with respect to many variables, others to fewer. In choosing a sampling method the main question is whether the procedure results in a biased sample of the variables under study. A method can produce a biased sample directly, as a result of intrinsic bias with respect to a study variable, or secondarily due to some degree of dependence (correlation) between the study variable and a directly-biased variable. In order to choose a sampling technique, the observer needs to consider carefully the characteristics of behavior and social interactions that are relevant to the study population and the research questions at hand. In most studies one will not have adequate empirical knowledge of the dependencies between relevant variables. Under the circumstances, the observer should avoid intrinsic biases to whatever extent possible, in particular those that direcly affect the variables under study. Finally, it will often be possible to use more than one sampling method in a study. Such samples can be taken successively or, under favorable conditions, even concurrently. For example, we have found it possible to take Instantaneous Samples of the identities and distances of nearest neighbors of a focal individual at five or ten minute intervals during Focal-Animal (behavior) Samples on that individual. Often during Focal-Animal Sampling one can also record All Occurrences of Some Behaviors, for the whole social group, for categories of conspicuous behavior, such as predation, intergroup contact, drinking, and so on. The extent to which concurrent multiple sampling is feasible will depend very much on the behavior categories and rate of occurrence, the observational conditions, etc. Where feasible, such multiple sampling can greatly aid in the efficient use of research time. |
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Equine Behaviour @ team @ |
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4684 |
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Author |
Hinde, R.A. |
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Title |
Biological Bases of Human Social Behavior |
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Miscellaneous |
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1974 |
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Equine Behaviour @ team @ |
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4849 |
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