| Records |
| Author |
Mitchell, C.J.; Darsie, R.F.J.; Monath, T.P.; Sabattini, M.S.; Daffner, J. |
| Title |
The use of an animal-baited net trap for collecting mosquitoes during western equine encephalitis investigations in Argentina |
Type |
Journal Article |
| Year |
1985 |
Publication |
Journal of the American Mosquito Control Association |
Abbreviated Journal |
J Am Mosq Control Assoc |
| Volume |
1 |
Issue  |
1 |
Pages |
43-47 |
| Keywords |
Animals; Argentina; *Culicidae/classification; Disease Outbreaks/veterinary; Encephalitis Virus, Western Equine; Encephalomyelitis, Equine/transmission/*veterinary; Entomology/*instrumentation; Equipment Design; Horse Diseases/*transmission; Horses; *Insect Vectors; Population Surveillance |
| Abstract |
A large net trap was used to sample mosquito populations attracted to horses at three sites each in Santa Fe and Rio Negro Provinces, Argentina, during the austral summer of 1984. These provinces, as well as others in Argentina, were affected by a severe epizootic of western equine encephalitis (WEE) during 1982-83. Totals of 2,752 and 6,929 mosquitoes were collected in Santa Fe and Rio Negro Provinces during five and three trap nights, respectively. Culex mosquitoes of the subgenus Culex were predominant (45.8% of total) in the Santa Fe collections, although Aedes albifasciatus also was prevalent (21.7%). The latter species was predominant (95.7% of total) in the Rio Negro collections. The mosquito fauna was less complex (minimum of 6 species) in Rio Negro Province as compared to Santa Fe Province (minimum of 18 species). The advantages of the net trap indicate that this trap can become a useful tool in arbovirus ecology studies in other areas. |
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Division of Vector-Borne Viral Diseases, Centers for Disease Control, Fort Collins, CO 80522-2087 |
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English |
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8756-971X |
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| Notes |
PMID:2906656 |
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no |
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Equine Behaviour @ team @ |
Serial |
2686 |
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| Author |
Inglis, I. |
| Title |
H.L. Roitblat, T.G. Bever and H.S. Terrace, Editors, Animal Cognition, Lawrence Erlbaum, New Jersey (1984), p. 682 |
Type |
Journal Article |
| Year |
1985 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
33 |
Issue |
1 |
Pages |
344-345 |
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no |
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Equine Behaviour @ team @ |
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2924 |
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| Author |
Kamil, A.C.; Roitblat, H.L. |
| Title |
The Ecology of Foraging Behavior: Implications for Animal Learning and Memory |
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Journal Article |
| Year |
1985 |
Publication |
Annual Review of Psychology |
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| Volume |
36 |
Issue |
1 |
Pages |
141-169 |
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no |
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refbase @ user @ |
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3543 |
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| Author |
Perusse, D.; Lefebvre, L. |
| Title |
Grouped sequential exploitation of food patches in a flock feeder, the feral pigeon |
Type |
Journal Article |
| Year |
1985 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
11 |
Issue |
1 |
Pages |
39-52 |
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| Abstract |
Feral and laboratory flocks of rock doves ( ) show a pattern of grouped sequential exploitation when simultaneously presented with two dispersed, depleting patches of seed. This behavior contrasts with the ideal free distribution pattern shown when patches are small and concentrated. Grouped sequential exploitation consists of two phases: all pigeons first land together and feed at one patch, then leave one by one for the other patch. Departure times of individuals for the second patch are correlated with feeding rate at patch 1, which is in turn correlated with position in the dominance hierarchy. The decision to switch from patch 1 to patch 2 improves individual feeding rates in all cases, but is done slightly later than it should according to optimal foraging theory. |
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no |
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Equine Behaviour @ team @ |
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4227 |
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| Author |
Bourlière, F. |
| Title |
Primate communities: Their structure and role in tropical ecosystems |
Type |
Journal Article |
| Year |
1985 |
Publication |
International Journal of Primatology |
Abbreviated Journal |
Int. J. Primatol. |
| Volume |
6 |
Issue |
1 |
Pages |
1-26 |
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| Abstract |
The structure of primate communities living in a number of undisturbed areas is described and compared. Species richness is highest in tropical rain forests of Africa and South America, where up to 14 different species can share the same habitat. The number of sympatric primates in woodlands and savannas is always much lower. Some striking differences in community structure may be observed between communities living in apparently similar habitats. Three major factors may be held responsible for such discrepancies: history and paleoecology, present spatial heterogeneity of the vegetation, and competition with other taxonomic groups. The role of primates in the functioning of forest ecosystems is discussed. Though their trophic impact may be important, the role they play in seed dispersal appears to be more significant; they contribute greatly to homeostasis, as well as to regeneration, of the rain forests. A number of ecological traits are particularly developed among primates and may have contributed to the rapid evolutionary success of the order. Their predominantly vegetarian diet allows them to build up higher population densities than sympatric carnivorous mammals;their arborealism permits them to make use of all edible plant material available in a tridimensional environment; the opportunistic tendencies of some cebids, cercopithecids, and pongids enable them to take advantage of a variety of habitats and situations; and finally, an extended socialization period and a long life-span, allowing them to develop social traditions, give to many of them a further possibility to adapt quickly to novel situations. |
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no |
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Equine Behaviour @ team @ |
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4251 |
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| Author |
Crowell-Davis, S.L. |
| Title |
Nursing behaviour and maternal aggression among Welsh ponies (Equus caballus) |
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Journal Article |
| Year |
1985 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl Anim Behav Sci |
| Volume |
14 |
Issue |
1 |
Pages |
11-25 |
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| Abstract |
Nursing behaviour and related aggression of mare-foal pairs was studied from birth (n = 21) to 24 weeks of age (n = 15) of the foal. Foals exhibited a decreasing length and frequency of nursing as they grew older. Mares rarely aggressed against their foals during nursing in the foal's first 4 weeks of life, but did so increasingly through Weeks 13-16, after which the rate of aggression during nursing decreased. Mares terminated nursing primarily by moving away, and were most likely to do so during the foal's first 4 weeks of life. They became gradually less likely to do so as the foal grew older. It was concluded that mares sometimes flex their hind limb on the side opposite the foal during nursing in order to conserve energy in a situation in which they would be remaining still anyway. There was no difference between colts and fillies in the frequency or duration of nursing or in the frequency with which their mothers aggressed against them or terminated nursing. |
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0168-1591 |
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no |
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Equine Behaviour @ team @ |
Serial |
6504 |
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| Author |
Poling, A.; Thomas, J.; Hall-Johnson, E.; Picker, M. |
| Title |
Self-control revisited: Some factors that affect autoshaped responding |
Type |
Journal Article |
| Year |
1985 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
10 |
Issue |
1-2 |
Pages |
77-85 |
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Pigeons were exposed to autoshaping procedures under which 50% of red key illuminations were followed by 9-sec food deliveries, and 50% of blue key illuminations were followed by 3-sec food deliveries. When all key illuminations were 6 sec, pigeons preferred the red stimulus. Subsequent manipulations demonstrated that preference could be shifted to the blue stimulus by either increasing the duration of the red stimulus or imposing a delay interval between the offset of that stimulus and food delivery. A final experiment demonstrated that, in two of three subjects, preference for key illuminations associated with longer, but delayed, food deliveries generally increased as the duration of all key illuminations was lengthened. These results, obtained under conditions where keypecking had no programmed consequences, are similar to those previously observed under procedures involving a positive response-food dependency. |
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no |
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Equine Behaviour @ team @ |
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3606 |
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| Author |
Terrace, H.S. |
| Title |
Animal Cognition: Thinking without Language |
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Journal Article |
| Year |
1985 |
Publication |
Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences (1934-1990) |
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| Volume |
308 |
Issue |
1135 |
Pages |
113-128 |
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Recent attempts to teach apes rudimentary grammatical skills have produced negative results. The basic obstacle appears to be at the level of the individual symbol which, for apes, functions only as a demand. Evidence is lacking that apes can use symbols as names, that is, as a means of simply transmitting information. Even though non-human animals lack linguistic competence, much evidence has recently accumulated that a variety of animals can represent particular features of their environment. What then is the non-verbal nature of animal representations? This question will be discussed with reference to the following findings of studies of serial learning by pigeons. While learning to produce a particular sequence of four elements (colours), pigeons also acquire knowledge about the relation between non-adjacent elements and about the ordinal position of a particular element. Learning to produce a particular sequence also facilitates the discrimination of that sequence from other sequences. |
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no |
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refbase @ user @ |
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3522 |
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| Author |
Kummer, H.; Goodall, J. |
| Title |
Conditions of Innovative Behaviour in Primates |
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Journal Article |
| Year |
1985 |
Publication |
Philosophical Transactions of the Royal Society of London. B, Biological Sciences |
Abbreviated Journal |
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| Volume |
308 |
Issue |
1135 |
Pages |
203-214 |
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Innovative behaviour achieved through exploration, learning and insight heavily depends on certain motivational, social and ecological conditions of short duration. We propose that more attention should be given to what these conditions are and where they are realized in natural groups of non-human primates. Only to the extent that such favourable conditions were frequently realized in a social structure or an extraspecific environment could selective pressures act on innovative abilities. There is hope that research into field conditions of innovative behaviour will help to identify its selectors in evolution. |
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| Notes |
10.1098/rstb.1985.0020 |
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no |
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Equine Behaviour @ team @ |
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5751 |
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| Author |
Houpt, T.R. |
| Title |
The physiological determination of meal size in pigs |
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Journal Article |
| Year |
1985 |
Publication |
The Proceedings of the Nutrition Society |
Abbreviated Journal |
Proc Nutr Soc |
| Volume |
44 |
Issue |
2 |
Pages |
323-330 |
| Keywords |
Animals; Appetite/physiology; Drinking; Duodenum/physiology; *Eating; Energy Intake; Food; Horses/physiology; Milk; Osmolar Concentration; Receptors, Cell Surface/physiology; Receptors, Cholecystokinin; Swine/*physiology; Time Factors |
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0029-6651 |
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| Notes |
PMID:2996010 |
Approved |
no |
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refbase @ user @ |
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53 |
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