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| Author |
Seeley, T.D. |
| Title |
When Is Self-Organization Used in Biological Systems? |
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Journal Article |
| Year |
2002 |
Publication |
Biol Bull |
Abbreviated Journal |
Biol Bull |
| Volume |
202 |
Issue |
3 |
Pages |
314-318 |
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| Abstract |
Self-organization, or decentralized control, is widespread in biological systems, including cells, organisms, and groups. It is not, however, the universal means of organization. I argue that a biological system will be self-organized when it possesses a large number of subunits, and these subunits lack either the communicational abilities or the computational abilities, or both, that are needed to implement centralized control. Such control requires a well informed and highly intelligent supervisor. I stress that the subunits in a self-organized system do not necessarily have low cognitive abilities. A lack of preadaptations for evolving a system-wide communication network can prevent the evolution of centralized control. Hence, sometimes even systems whose subunits possess high cognitive abilities will be self-organized. N1 - |
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Equine Behaviour @ team @ |
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5257 |
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| Author |
Rogers, L.J. |
| Title |
Evolution of Side Biases: Motor versus Sensory Lateralization |
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Book Chapter |
| Year |
2002 |
Publication |
Side Bias: A Neuropsychological Perspective |
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Pages |
3-40-40 |
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Medicine & Public Health |
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Springer Netherlands |
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Mandal, M.K.; Bulman-Fleming, M.B.; Tiwari, G. |
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978-0-306-46884-1 |
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Equine Behaviour @ team @ |
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5357 |
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| Author |
Barton, R. |
| Title |
The evolutionary ecolgy of the primate brain |
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Book Chapter |
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2002 |
Publication |
Comparative Primate Socioecology |
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Issue |
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Pages |
167-204 |
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Cambridge University Press |
Place of Publication |
Cambridge |
Editor |
Lee, P. C. |
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ISBN-13: 9780521004244 | ISBN-10: 0521004241 |
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Equine Behaviour @ team @ |
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5450 |
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Garamszegi, L.Z.; Møller, A.P.; Erritzøe, J. |
| Title |
Coevolving avian eye size and brain size in relation to prey capture and nocturnality |
Type |
Journal Article |
| Year |
2002 |
Publication |
Proceedings of the Royal Society of London. Series B: Biological Sciences |
Abbreviated Journal |
Proc Roy Soc Lond B Biol Sci |
| Volume |
269 |
Issue |
1494 |
Pages |
961-967 |
| Keywords |
adaptation; behaviour; brain size; coevolution; eye size; vision |
| Abstract |
Behavioural adaptation to ecological conditions can lead to brain size evolution. Structures involved in behavioural visual information processing are expected to coevolve with enlargement of the brain. Because birds are mainly vision–oriented animals, we tested the predictions that adaptation to different foraging constraints can result in eye size evolution, and that species with large eyes have evolved large brains to cope with the increased amount of visual input. Using a comparative approach, we investigated the relationship between eye size and brain size, and the effect of prey capture technique and nocturnality on these traits. After controlling for allometric effects, there was a significant, positive correlation between relative brain size and relative eye size. Variation in relative eye and brain size were significantly and positively related to prey capture technique and nocturnality when a potentially confounding variable, aquatic feeding, was controlled statistically in multiple regression of independent linear contrasts. Applying a less robust, brunching approach, these patterns also emerged, with the exception that relative brain size did not vary with prey capture technique. Our findings suggest that relative eye size and brain size have coevolved in birds in response to nocturnal activity and, at least partly, to capture of mobile prey. |
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10.1098/rspb.2002.1967 |
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Equine Behaviour @ team @ |
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5452 |
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| Author |
Heyes, C.M. |
| Title |
Transformation and associative theories of imitation. |
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Book Chapter |
| Year |
2002 |
Publication |
Imitation in animals and artefacts |
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Pages |
501-523 |
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MIT Press |
Place of Publication |
Cambridge, MA. |
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Dautenhahn, K. ; Nehaniv, C. L. |
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Equine Behaviour @ team @ |
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5602 |
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Pfister, J.A.; Stegelmeier, B.L.; Cheney, C.D.; Ralphs, M.H.; Gardner, D.R. |
| Title |
Conditioning taste aversions to locoweed (Oxytropis sericea) in horses |
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Journal Article |
| Year |
2002 |
Publication |
Journal of Animal Science |
Abbreviated Journal |
J. Anim. Sci. |
| Volume |
80 |
Issue |
1 |
Pages |
79-83 |
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Locoweed (Oxytropis sericea) is a serious poisoning problem for horses grazing on infested rangelands in the western United States. Our objectives were to determine 1) whether lithium chloride or apomorphine would condition aversions to palatable foods, and at what doses, and 2) whether horses could be averted to fresh locoweed in a pen and grazing situation. Apomorphine was not an acceptable aversive agent because at the dose required to condition an aversion (> or = 0.17 mg/kg BW), apomorphine induced unacceptable behavioral effects. Lithium chloride given via stomach tube at 190 mg/kg BW conditioned strong and persistent aversions to palatable feeds with minor signs of distress. Pen and grazing tests were conducted in Colorado to determine if horses could be averted to fresh locoweed. Pen tests indicated that most horses (5/6) were completely averted from locoweed. Treated horses ate 34 g of fresh locoweed compared to 135 g for controls (P < 0.01) during three pen tests when offered 150 g per test. One horse (T) in the treatment group ate locoweed each time it was offered in the pen, but ate no locoweed while grazing. In the grazing trial, control horses averaged 8.6% of bites of locoweed (P < 0.01) during the grazing portion of the study, whereas treated horses averaged <0.5%. One treated horse (S) accounted for all consumption; he consumed 15% of his bites as locoweed in a grazing bout on d 2 of the field study. Thereafter, he was dosed a second time with lithium chloride and ate no locoweed in the subsequent 5 d. Three of six horses required two pairings of lithium chloride with fresh locoweed to condition a complete aversion. The results of this study indicate that horses can be averted from locoweed using lithium chloride as an aversive agent, and this may provide a management tool to reduce the risk of intoxication for horses grazing locoweed-infested rangeland. |
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Equine Behaviour @ team @ |
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5682 |
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| Author |
Clow, A; Hucklebridge, F. |
| Title |
International Review of Neurobiology: Neurobiology of the Immune System |
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Book Whole |
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2002 |
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52 |
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Academic Press |
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Amsterdam |
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0-12-366853-0 |
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Equine Behaviour @ team @ |
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5782 |
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| Author |
Neveu, P.J. |
| Title |
Cerebral Lateralisation and the Immune System |
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Book Chapter |
| Year |
2002 |
Publication |
International Review of Neurobiology: Neurobiology of the Immune System |
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52 |
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Pages |
303-318 |
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Academic Press |
Place of Publication |
Amsterdam |
Editor |
Clow, A.; Hucklebridge, F. |
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no |
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Equine Behaviour @ team @ |
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5828 |
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Podsakoff, P.M.; MacKenzie, S. B.; Lee, J.-Y.; Podsakoff, N. P. |
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Common method biases in behavioral research: A critical review of the literature and recommended remedies. |
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Journal Article |
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2002 |
Publication |
Journal of Applied Psychology |
Abbreviated Journal |
J. Appl. Psychol. |
| Volume |
85 |
Issue |
5 |
Pages |
879-903 |
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Interest in the problem of method biases has a long history in the behavioral sciences. Despite this, a comprehensive summary of the potential sources of method biases and how to control for them does not exist. Therefore, the purpose of this article is to examine the extent to which method biases influence behavioral research results, identify potential sources of method biases, discuss the cognitive processes through which method biases influence responses to measures, evaluate the many different procedural and statistical techniques that can be used to control method biases, and provide recommendations for how to select appropriate procedural and statistical remedies for different types of research settings. (PsycINFO Database Record (c) 2016 APA, all rights reserved)
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Equine Behaviour @ team @ |
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6435 |
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Fischer, J.; Hammerschmidt, K.; Cheney, D.L.; Seyfarth, R.M. |
| Title |
Acoustic features of male baboon loud calls: influences of context, age, and individuality |
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Journal Article |
| Year |
2002 |
Publication |
The Journal of the Acoustical Society of America |
Abbreviated Journal |
J Acoust Soc Am |
| Volume |
111 |
Issue |
3 |
Pages |
1465-1474 |
| Keywords |
Age Factors; Animal Communication; Animals; Individuality; Male; *Papio; *Social Environment; *Sound Spectrography; *Vocalization, Animal |
| Abstract |
The acoustic structure of loud calls (“wahoos”) recorded from free-ranging male baboons (Papio cynocephalus ursinus) in the Moremi Game Reserve, Botswana, was examined for differences between and within contexts, using calls given in response to predators (alarm wahoos), during male contests (contest wahoos), and when a male had become separated from the group (contact wahoos). Calls were recorded from adolescent, subadult, and adult males. In addition, male alarm calls were compared with those recorded from females. Despite their superficial acoustic similarity, the analysis revealed a number of significant differences between alarm, contest, and contact wahoos. Contest wahoos are given at a much higher rate, exhibit lower frequency characteristics, have a longer “hoo” duration, and a relatively louder “hoo” portion than alarm wahoos. Contact wahoos are acoustically similar to contest wahoos, but are given at a much lower rate. Both alarm and contest wahoos also exhibit significant differences among individuals. Some of the acoustic features that vary in relation to age and sex presumably reflect differences in body size, whereas others are possibly related to male stamina and endurance. The finding that calls serving markedly different functions constitute variants of the same general call type suggests that the vocal production in nonhuman primates is evolutionarily constrained. |
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Department of Psychology, University of Pennsylvania, Philadelphia 19104, USA. fischer@eva.mpg.de |
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English |
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0001-4966 |
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| Notes |
PMID:11931324 |
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refbase @ user @ |
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691 |
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