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| Author | Chase, I.D. | ||||
| Title | Music notation: a new method for visualizing social interaction in animals and humans | Type | Journal Article | ||
| Year | 2006 | Publication | Frontiers in zoology | Abbreviated Journal  |
Front Zool |
| Volume | 3 | Issue | Pages | 18 | |
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| Abstract | ABSTRACT: BACKGROUND: Researchers have developed a variety of techniques for the visual presentation of quantitative data. These techniques can help to reveal trends and regularities that would be difficult to see if the data were left in raw form. Such techniques can be of great help in exploratory data analysis, making apparent the organization of data sets, developing new hypotheses, and in selecting effects to be tested by statistical analysis. Researchers studying social interaction in groups of animals and humans, however, have few tools to present their raw data visually, and it can be especially difficult to perceive patterns in these data. In this paper I introduce a new graphical method for the visual display of interaction records in human and animal groups, and I illustrate this method using data taken on chickens forming dominance hierarchies. RESULTS: This new method presents data in a way that can help researchers immediately to see patterns and connections in long, detailed records of interaction. I show a variety of ways in which this new technique can be used: (1) to explore trends in the formation of both group social structures and individual relationships; (2) to compare interaction records across groups of real animals and between real animals and computer-simulated animal interactions; (3) to search for and discover new types of small-scale interaction sequences; and (4) to examine how interaction patterns in larger groups might emerge from those in component subgroups. In addition, I discuss how this method can be modified and extended for visualizing a variety of different kinds of social interaction in both humans and animals. CONCLUSION: This method can help researchers develop new insights into the structure and organization of social interaction. Such insights can make it easier for researchers to explain behavioural processes, to select aspects of data for statistical analysis, to design further studies, and to formulate appropriate mathematical models and computer simulations. | ||||
| Address | Department of Sociology, Stony Brook University, Stony Brook, NY 11794-4345, USA. ichase@notes.cc.sunysb.edu | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 1742-9994 | ISBN | Medium | ||
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| Notes | PMID:17112384 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 751 | ||
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| Author | Larsson, M. | ||||
| Title | The optic chiasm: a turning point in the evolution of eye/hand coordination | Type | Journal Article | ||
| Year | 2013 | Publication | Frontiers in Zoology | Abbreviated Journal |
Front. Zool. |
| Volume | 10 | Issue | 1 | Pages | 41 |
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| Abstract | The primate visual system has a uniquely high proportion of ipsilateral retinal projections, retinal ganglial cells that do not cross the midline in the optic chiasm. The general assumption is that this developed due to the selective advantage of accurate depth perception through stereopsis. Here, the hypothesis that the need for accurate eye-forelimb coordination substantially influenced the evolution of the primate visual system is presented. Evolutionary processes may change the direction of retinal ganglial cells. Crossing, or non-crossing, in the optic chiasm determines which hemisphere receives visual feedback in reaching tasks. Each hemisphere receives little tactile and proprioceptive information about the ipsilateral hand. The eye-forelimb hypothesis proposes that abundant ipsilateral retinal projections developed in the primate brain to synthesize, in a single hemisphere, visual, tactile, proprioceptive, and motor information about a given hand, and that this improved eye-hand coordination and optimized the size of the brain. If accurate eye-hand coordination was a major factor in the evolution of stereopsis, stereopsis is likely to be highly developed for activity in the area where the hands most often operate.The primate visual system is ideally suited for tasks within arm's length and in the inferior visual field, where most manual activity takes place. Altering of ocular dominance in reaching tasks, reduced cross-modal cuing effects when arms are crossed, response of neurons in the primary motor cortex to viewed actions of a hand, multimodal neuron response to tactile as well as visual events, and extensive use of multimodal sensory information in reaching maneuvers support the premise that benefits of accurate limb control influenced the evolution of the primate visual system. The eye-forelimb hypothesis implies that evolutionary change toward hemidecussation in the optic chiasm provided parsimonious neural pathways in animals developing frontal vision and visually guided forelimbs, and also suggests a new perspective on vision convergence in prey and predatory animals. | ||||
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| ISSN | 1742-9994 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5685 | ||
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| Author | Briefer, E.F.; Haque, S.; Baciadonna, L.; McElligott, A.G. | ||||
| Title | Goats excel at learning and remembering a highly novel cognitive task | Type | Journal Article | ||
| Year | 2014 | Publication | Frontiers in Zoology | Abbreviated Journal |
Front. Zool. |
| Volume | 11 | Issue | 1 | Pages | 20 |
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| Abstract | The computational demands of sociality (maintaining group cohesion, reducing conflict) and ecological problems (extractive foraging, memorizing resource locations) are the main drivers proposed to explain the evolution cognition. Different predictions follow, about whether animals would preferentially learn new tasks socially or not, but the prevalent view today is that intelligent species should excel at social learning. However, the predictions were originally used to explain primate cognition, and studies of species with relatively smaller brains are rare. By contrast, domestication has often led to a decrease in brain size, which could affect cognition. In domestic animals, the relaxed selection pressures compared to a wild environment could have led to reduced social and physical cognition. Goats possess several features commonly associated with advanced cognition, such as successful colonization of new environments and complex fission-fusion societies. Here, we assessed goat social and physical cognition as well as long-term memory of a complex two-step foraging task (food box cognitive challenge), in order to investigate some of the main selection pressures thought to affect the evolution of ungulate cognition. | ||||
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| ISSN | 1742-9994 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ Briefer2014 | Serial | 6376 | ||
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| Author | Passilongo, D.; Mattioli, L.; Bassi, E.; Szabó, L.; Apollonio, M. | ||||
| Title | Visualizing sound: counting wolves by using a spectral view of the chorus howling | Type | Journal Article | ||
| Year | 2015 | Publication | Frontiers in Zoology | Abbreviated Journal |
Front. Zool. |
| Volume | 12 | Issue | 1 | Pages | 22 |
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| Abstract | Monitoring large carnivores is a central issue in conservation biology. The wolf (Canis lupus) is the most studied large carnivore in the world. After a massive decline and several local extinctions, mostly due to direct persecutions, wolves are now recolonizing many areas of their historical natural range. One of the main monitoring techniques is the howling survey, which is based on the wolves' tendency to use vocalisations to mark territory ownership in response to howls of unknown individuals. In most cases wolf howling sessions are useful for the localisation of the pack, but they provide only an aural estimation of the chorus size. | ||||
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| ISSN | 1742-9994 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ Passilongo2015 | Serial | 6498 | ||
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| Author | Klingel, H. | ||||
| Title | Das Verhalten der Pferde (Equidae) | Type | Journal Article | ||
| Year | Publication | Handbook of Zoology | Abbreviated Journal |
Handb. o. Zool. | |
| Volume | 8 | Issue | 10 | Pages | 1-68 |
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| Publisher | Walter De Gruyter | Place of Publication | Berlin/Newyork | Editor | |
| Language | German English | Summary Language | Original Title | ||
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| Notes | Approved | no | |||
| Call Number | refbase @ user @ | Serial | 473 | ||
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| Author | Alexander, R, MCN et al | ||||
| Title | Fast locomotion of some african ungulates | Type | Journal Article | ||
| Year | 1977 | Publication | Journal of Zoology | Abbreviated Journal |
J Zool |
| Volume | 183 | Issue | 3 | Pages | 291-300 |
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| Abstract | ABSTRACT Ten species of ungulate were filmed, galloping in their natural habitat. They ranged in size from Thomson's gazelle (about 20 kg) to giraffe (about 1000 kg). They were pursued to make them run as fast as possible. The films have been analysed to determine speed, stride frequency, stride and step lengths, and duty factors. The dependence of these quantities on body size is discussed. Summary: Fast locomotion of zebra, giraffe, warthog and seven species of Bovidae has been studied. The animals were filmed from a pursuing vehicle while galloping in their natural habitat. Stride frequency was more closely correlated with limb length (represented by hip height) than with body mass. Mean stride frequency was proportional to (hip height)-0·51 and maximum stride frequency to (hip height) -0·63. Maximum speed was between 10 and 14 m s -1 for all species except buffalo (7 m s -1). It was not significantly correlated with body mass. Since the small species ran at least as fast as the large ones they attained higher Froude numbers. Relative stride length was approximately 1·8 (Froude number)0·39 for all species, irrespective of size. Relative step length was approximately 0·65 (Froude number)0·2, both for the fore feet and for the hind ones. The vertical forces exerted by the feet are proportional to (body weight)×(Froude number)0·2 so the forces at maximum speed are larger multiples of body weight for small species than for large ones. |
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| Notes | from Prof. Hans Klingels Equine Reference List | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 130 | ||
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| Author | King, S.R.B.; Gurnell, J. | ||||
| Title | Scent-marking behaviour by stallions: an assessment of function in a reintroduced population of Przewalski horses (Equus ferus przewalskii) | Type | Journal Article | ||
| Year | 2007 | Publication | Journal of Zoology | Abbreviated Journal |
J Zool |
| Volume | 272 | Issue | 1 | Pages | 30-36 |
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| Abstract | Abstract Scent marking is a common form of intraspecific communication in mammal species, and using faeces or urine is a cost-effective way of signalling competitive ability and resource holding power. Marking is ritually performed by male equids, and here we assess the function of male scent-marking behaviour in a recently introduced population of Przewalski horses Equus ferus przewalskii in Mongolia. Two forms of scent marking were observed: defecation on stud piles formed from repeated dunging in the same place, and overmarking of faeces and urine of mares. Stud piles were marked with dung by the harem holder and sniffed before and after dung was deposited. They were not found specifically at the periphery of harem ranges but occurred for the most part along routes used by the horses, and were more common in the core parts of harem ranges or where harem ranges overlapped. Thus, rather than being used to defend range boundaries, stud piles were placed predominantly where they would be encountered by male intruders. Mare excreta were covered with urine by the stallion, but were only sniffed before they were marked, not after. These marks appear to advertise to the mare and other, intruding stallions that the harem holder was the mare's consort and that the interloper should not risk trying to steal the mare or sneak a mating. Thus, the two forms of marking by harem holders appear to combine as first and second lines of defence of paternity rights in male intrasexual competition. | ||||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ King2007 | Serial | 2315 | ||
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| Author | de Villiers, M.S.; Richardson, P.R.K.; van Jaarsveld, A.S. | ||||
| Title | Patterns of coalition formation and spatial association in a social carnivore, the African wild dog (Lycaon pictus) | Type | Journal Article | ||
| Year | 2003 | Publication | Journal of Zoology | Abbreviated Journal |
J Zool |
| Volume | 260 | Issue | 4 | Pages | 377-389 |
| Keywords | coalitions; social systems; Carnivora; Lycaon pictus | ||||
| Abstract | In many social species, relationships within groups seem to be non-random but related to variables such as rank, kinship or sexual attractiveness. The endangered African wild dog Lycaon pictus is a social carnivore that lives in large, stable packs, and intra-pack associations might be expected to display similar patterns. We investigated patterns of coalition formation (support during dominance interactions, and partnership interactions) and resting associations between members of a captive pack of 19 wild dogs. The social organization of the captive pack was similar to that of free-ranging packs in many respects. Polyadic (group) incidents of coalition support were also observed in a free-ranging pack. Patterns of coalition formation in the captive pack were related to rank. Most aggressive interactions involved high-ranking individuals (particularly the alpha, beta and third-ranking males) and coalitionary support tended to reinforce the existing hierarchy. However, there was at least one example of support influencing a successful rank challenge. Support was affected by potential risks and benefits, the latter including dominance through association and revolutionary alliances. An even stronger pattern overlaid associations between pack members: coalitions and resting associations were strongest between members of the same age–sex cohort, and may have enabled the eventual dominance of younger pack members over adults. Among adults, coalitionary associations were sometimes overridden by intersexual relationships. The results from this captive pack suggest that wild dogs are sensitive to differences in competitive ability. This information, in conjunction with strong affiliative bonds between littermates, is used to manoeuvre for position in the social hierarchy. It may also be important during dispersal, in encounters with other dispersing groups of the same sex. Although most features of the social structure of the captive pack were comparable to those of free-ranging packs, aspects such as the influence of relatedness on coalition formation still need to be explored. | ||||
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| Publisher | Blackwell Publishing Ltd | Place of Publication | Editor | ||
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| ISSN | 1469-7998 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5249 | ||
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| Author | Mace, G.M.; Harvey, P.H.; Clutton-Brock, T.H. | ||||
| Title | Brain size and ecology in small mammals | Type | Journal Article | ||
| Year | 1981 | Publication | Journal of Zoology | Abbreviated Journal |
J Zool |
| Volume | 193 | Issue | 3 | Pages | 333-354 |
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| Abstract | Relative brain size (measured as gross brain size after body size effects are removed) differs systematically between families of rodents, insectivores and lagomorphs. The Sciuridae have the largest relative brain size, the Soricidae and Bathyergidae the smallest. These results are discussed and compared with previous analyses of relative brain sizes among primates and bats. These differences complicate comparisons between relative brain size across phylogenetically diverse species and attempts to relate differences in relative brain size to ecological variables. To overcome these problems, best fit relationships were estimated for each family, and values for each genus were expressed as deviations from the lines of best fit. We refer to these values as Comparative Brain Size (CBS). Differences in CBS are related to differences in habitat type (forest-dwelling genera have larger CBS' than grassland forms), in diet (folivores have smaller CBS' than generalists or insectivores, frugivores and granivores), in zonation (arboreal genera have larger CBS' than terrestrial ones) and in activity timing (nocturnal genera have larger CBS' than dirurnal ones). However, these ecological categories are interrelated and, when the effects of other ecological differences are taken into account using analyses of variance, only the differences associated with diet, and possibly habitat remain. | ||||
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| Publisher | Blackwell Publishing Ltd | Place of Publication | Editor | ||
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| ISSN | 1469-7998 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5455 | ||
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| Author | Leadbeater, E. | ||||
| Title | What evolves in the evolution of social learning? | Type | Journal Article | ||
| Year | 2015 | Publication | Journal of Zoology | Abbreviated Journal |
J Zool |
| Volume | 295 | Issue | 1 | Pages | 4-11 |
| Keywords | social learning; associative learning; social information use | ||||
| Abstract | Social learning is fundamental to social life across the animal kingdom, but we still know little about how natural selection has shaped social learning abilities on a proximate level. Sometimes, complex social learning phenomena can be entirely explained by Pavlovian processes that have little to do with the evolution of sociality. This implies that the ability to learn socially could be an exaptation, not an adaptation, to social life but not that social learning abilities have been left untouched by natural selection. I discuss new empirical evidence for associative learning in social information use, explain how natural selection might facilitate the associative learning process and discuss why such studies are changing the way that we think about social learning. | ||||
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| ISSN | 1469-7998 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 6015 | ||
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