| Records |
| Author |
Shettleworth, S.J. |
| Title |
Cognitive ecology: field or label? |
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Journal Article |
| Year |
2000 |
Publication |
Trends in Ecology & Evolution |
Abbreviated Journal |
Trends. Ecol. Evol |
| Volume |
15 |
Issue  |
4 |
Pages |
161 |
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Depts of Psychology and Zoology, University of Toronto, Toronto, Ontario, Canada M5S 3G3 |
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0169-5347 |
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PMID:10717686 |
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refbase @ user @ |
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373 |
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| Author |
Dall, S.R.X.; Giraldeau, L.-A.; Olsson, O.; McNamara, J.M.; Stephens, D.W. |
| Title |
Information and its use by animals in evolutionary ecology |
Type |
Journal Article |
| Year |
2005 |
Publication |
Trends in Ecology & Evolution (Personal Edition) |
Abbreviated Journal |
Trends Ecol Evol |
| Volume |
20 |
Issue |
4 |
Pages |
187-193 |
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| Abstract |
Information is a crucial currency for animals from both a behavioural and evolutionary perspective. Adaptive behaviour relies upon accurate estimation of relevant ecological parameters; the better informed an individual, the better it can develop and adjust its behaviour to meet the demands of a variable world. Here, we focus on the burgeoning interest in the impact of ecological uncertainty on adaptation, and the means by which it can be reduced by gathering information, from both 'passive' and 'responsive' sources. Our overview demonstrates the value of adopting an explicitly informational approach, and highlights the components that one needs to develop useful approaches to studying information use by animals. We propose a quantitative framework, based on statistical decision theory, for analysing animal information use in evolutionary ecology. Our purpose is to promote an integrative approach to studying information use by animals, which is itself integral to adaptive animal behaviour and organismal biology. |
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Centre for Ecology and Conservation, University of Exeter in Cornwall, Tremough Campus, Penryn, UK, TR10 9EZ. sashadall@iname.com |
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0169-5347 |
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PMID:16701367 |
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2128 |
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Podos, J. |
| Title |
Early perspectives on the evolution of behavior: Charles Otis Whitman and Oskar Heinroth |
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Journal Article |
| Year |
1964 |
Publication |
Ethology Ecology & Evolution (EEE) |
Abbreviated Journal |
Ethol Ecol Evol |
| Volume |
6 |
Issue |
4 |
Pages |
467-480 |
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Equine Behaviour @ team @ |
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2293 |
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| Author |
Rankin, D.J.; Lopez-Sepulcre, A.; Foster, K.R.; Kokko, H. |
| Title |
Species-level selection reduces selfishness through competitive exclusion |
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Journal Article |
| Year |
2007 |
Publication |
Journal of Evolutionary Biology |
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20 |
Issue |
4 |
Pages |
1459-1468 |
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Abstract Adaptation does not necessarily lead to traits which are optimal for the population. This is because selection is often the strongest at the individual or gene level. The evolution of selfishness can lead to a .tragedy of the commons., where traits such as aggression or social cheating reduce population size and may lead to extinction. This suggests that species-level selection will result whenever species differ in the incentive to be selfish. We explore this idea in a simple model that combines individual-level selection with ecology in two interacting species. Our model is not influenced by kin or trait-group selection. We find that individual selection in combination with competitive exclusion greatly increases the likelihood that selfish species go extinct. A simple example of this would be a vertebrate species that invests heavily into squabbles over breeding sites, which is then excluded by a species that invests more into direct reproduction. A multispecies simulation shows that these extinctions result in communities containing species that are much less selfish. Our results suggest that species-level selection and community dynamics play an important role in regulating the intensity of conflicts in natural populations. |
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Equine Behaviour @ team @ |
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4225 |
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| Author |
Lefebvre, L.; Reader, S.M.; Sol, D. |
| Title |
Brains, Innovations and Evolution in Birds and Primates |
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Journal Article |
| Year |
2004 |
Publication |
Brain, Behavior and Evolution |
Abbreviated Journal |
Brain. Behav. Evol. |
| Volume |
63 |
Issue |
4 |
Pages |
233-246 |
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Innovation W Brain evolution W Hyperstriatum ventrale W Neostriatum W Isocortex W Birds W Primates W Tool use W Invasion biology |
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Abstract
Several comparative research programs have focusedon the cognitive, life history and ecological traits thataccount for variation in brain size. We review one ofthese programs, a program that uses the reported frequencyof behavioral innovation as an operational measureof cognition. In both birds and primates, innovationrate is positively correlated with the relative size of associationareas in the brain, the hyperstriatum ventrale andneostriatum in birds and the isocortex and striatum inprimates. Innovation rate is also positively correlatedwith the taxonomic distribution of tool use, as well asinterspecific differences in learning. Some features ofcognition have thus evolved in a remarkably similar wayin primates and at least six phyletically-independent avianlineages. In birds, innovation rate is associated withthe ability of species to deal with seasonal changes in theenvironment and to establish themselves in new regions,and it also appears to be related to the rate atwhich lineages diversify. Innovation rate provides a usefultool to quantify inter-taxon differences in cognitionand to test classic hypotheses regarding the evolution ofthe brain. |
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0006-8977 |
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no |
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Equine Behaviour @ team @ |
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4738 |
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| Author |
List, C. |
| Title |
Democracy in animal groups: a political science perspective |
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Journal Article |
| Year |
2004 |
Publication |
Trends in Ecology & Evolution (Personal Edition) |
Abbreviated Journal |
Trends Ecol Evol |
| Volume |
19 |
Issue |
4 |
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168-169 |
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0169-5347 |
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PMID:16701250 |
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Equine Behaviour @ team @ |
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5137 |
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Meriggi, A.; Dagradi, V.; Dondina, O.; Perversi, M.; Milanesi, P.; Lombardini, M.; Raviglione, S.; Repossi, A. |
| Title |
Short-term responses of wolf feeding habits to changes of wild and domestic ungulate abundance in Northern Italy |
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Journal Article |
| Year |
2014 |
Publication |
Ethology Ecology & Evolution |
Abbreviated Journal |
Ethology Ecology & Evolution |
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27 |
Issue |
4 |
Pages |
389-411 |
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Taylor & Francis |
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0394-9370 |
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doi: 10.1080/03949370.2014.986768 |
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Equine Behaviour @ team @ |
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6688 |
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Andrew, R.J. |
| Title |
Changes in visual responsiveness following intercollicular lesions and their effects on avoidance and attack |
Type |
Journal Article |
| Year |
1974 |
Publication |
Brain, Behavior and Evolution |
Abbreviated Journal |
Brain Behav Evol |
| Volume |
10 |
Issue |
4-5 |
Pages |
400-424 |
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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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no |
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Equine Behaviour @ team @ |
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4626 |
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Silk, J.; Cheney, D.; Seyfarth, R. |
| Title |
A practical guide to the study of social relationships |
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Journal Article |
| Year |
2013 |
Publication |
Evolutionary Anthropology: Issues, News, and Reviews |
Abbreviated Journal |
Evol. Anthropol. |
| Volume |
22 |
Issue |
5 |
Pages |
213-225 |
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observational methods; behavioral analysis; methods; dyadic relationships; social bonds |
| Abstract |
Behavioral ecologists have devoted considerable effort to identifying the sources of variation in individual reproductive success. Much of this work has focused on the characteristics of individuals, such as their sex and rank. However, many animals live in stable social groups and the fitness of individuals depends at least in part on the outcome of their interactions with other group members. For example, in many primate species, high dominance rank enhances access to resources and reproductive success. The ability to acquire and maintain high rank often depends on the availability and effectiveness of coalitionary support. Allies may be cultivated and coalitions may be reinforced by affiliative interactions such as grooming, food sharing, and tolerance. These findings suggest that if we want to understand the selective pressures that shape the social behavior of primates, it will be profitable to broaden our focus from the characteristics of individuals to the properties of the relationships that they form with others. The goal of this paper is to discuss a set of methods that can be used to quantify the properties of social relationships. |
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1520-6505 |
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Equine Behaviour @ team @ |
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5748 |
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Dunbar, Robin I. M. |
| Title |
The social brain hypothesis |
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Journal Article |
| Year |
1998 |
Publication |
Evolutionary Anthropology: Issues, News, and Reviews |
Abbreviated Journal |
Evol. Anthropol. |
| Volume |
6 |
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5 |
Pages |
178-190 |
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brain size – neocortex – social brain hypothesis – social skills – mind reading – primates |
| Abstract |
Conventional wisdom over the past 160 years in the cognitive and neurosciences has assumed that brains evolved to process factual information about the world. Most attention has therefore been focused on such features as pattern recognition, color vision, and speech perception. By extension, it was assumed that brains evolved to deal with essentially ecological problem-solving tasks. © 1998 Wiley-Liss, Inc. |
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Robin Dunbar is Professor of Evolutionary Psychology and Behavioural Ecology at the University of Liverpool, England. His research primarily focuses on the behavioral ecology of ungulates and human and nonhuman primates, and on the cognitive mechanisms and brain components that underpin the decisions that animals make. He runs a large research group, with graduate students working on many different species on four continents. |
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Equine Behaviour @ team @ |
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4371 |
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