Records |
Author |
Vrba, Elisabeth S. |
Title |
Environment and evolution: alternative causes of the temporal distribution of evolutionary events |
Type |
Journal Article |
Year |
1985 |
Publication |
South African Journal of Science |
Abbreviated Journal |
S Afr J Anim Sci |
Volume |
81 |
Issue |
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Pages |
229-236 |
Keywords |
evolution, paleontology, turnover pulse |
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Equine Behaviour @ team @ |
Serial |
5463 |
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Author |
Cochet, H.; Byrne, R.W. |
Title |
Evolutionary origins of human handedness: evaluating contrasting hypotheses |
Type |
Journal Article |
Year |
2013 |
Publication |
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Abbreviated Journal |
Animal Cognition |
Volume |
16 |
Issue |
4 |
Pages |
531-542 |
Keywords |
Hand preference; Hemispheric specialization; Communicative gestures; Evolution of language; Nonhuman primates; Human children |
Abstract |
Variation in methods and measures, resulting in past dispute over the existence of population handedness in nonhuman great apes, has impeded progress into the origins of human right-handedness and how it relates to the human hallmark of language. Pooling evidence from behavioral studies, neuroimaging and neuroanatomy, we evaluate data on manual and cerebral laterality in humans and other apes engaged in a range of manipulative tasks and in gestural communication. A simplistic human/animal partition is no longer tenable, and we review four (nonexclusive) possible drivers for the origin of population-level right-handedness: skilled manipulative activity, as in tool use; communicative gestures; organizational complexity of action, in particular hierarchical structure; and the role of intentionality in goal-directed action. Fully testing these hypotheses will require developmental and evolutionary evidence as well as modern neuroimaging data. |
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Springer-Verlag |
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English |
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1435-9448 |
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no |
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Equine Behaviour @ team @ |
Serial |
5691 |
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Author |
Gruber, T.; Clay, Z.; Zuberbühler, K. |
Title |
A comparison of bonobo and chimpanzee tool use: evidence for a female bias in the Pan lineage |
Type |
Journal Article |
Year |
2010 |
Publication |
Animal Behaviour |
Abbreviated Journal |
Anim. Behav. |
Volume |
80 |
Issue |
6 |
Pages |
1023-1033 |
Keywords |
culture; great ape; neoteny; Pan; primate evolution; sex difference; tool use |
Abstract |
Chimpanzees, Pan troglodytes, are the most sophisticated tool-users among all nonhuman primates. From an evolutionary perspective, it is therefore puzzling that the tool use behaviour of their closest living primate relative, the bonobo, Pan paniscus, has been described as particularly poor. However, only a small number of bonobo groups have been studied in the wild and only over comparably short periods. Here, we show that captive bonobos and chimpanzees are equally diverse tool-users in most contexts. Our observations illustrate that tool use in bonobos can be highly complex and no different from what has been described for chimpanzees. The only major difference in the chimpanzee and bonobo data was that bonobos of all age–sex classes used tools in a play context, a possible manifestation of their neotenous nature. We also found that female bonobos displayed a larger range of tool use behaviours than males, a pattern previously described for chimpanzees but not for other great apes. Our results are consistent with the hypothesis that the female-biased tool use evolved prior to the split between bonobos and chimpanzees. |
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0003-3472 |
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Equine Behaviour @ team @ |
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5856 |
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Author |
Seyfarth, R.M.; Cheney, D.L. |
Title |
Social cognition |
Type |
Journal Article |
Year |
2015 |
Publication |
Animal Behaviour |
Abbreviated Journal |
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Volume |
103 |
Issue |
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Pages |
191-202 |
Keywords |
evolution; fitness; future research; personality; selective pressure; skill; social cognition |
Abstract |
The social intelligence hypothesis argues that competition and cooperation among individuals have shaped the evolution of cognition in animals. What do we mean by social cognition? Here we suggest that the building blocks of social cognition are a suite of skills, ordered roughly according to the cognitive demands they place upon individuals. These skills allow an animal to recognize others by various means; to recognize and remember other animals' relationships; and, perhaps, to attribute mental states to them. Some skills are elementary and virtually ubiquitous in the animal kingdom; others are more limited in their taxonomic distribution. We treat these skills as the targets of selection, and assume that more complex levels of social cognition evolve only when simpler methods are inadequate. As a result, more complex levels of social cognition indicate greater selective pressures in the past. The presence of each skill can be tested directly through field observations and experiments. In addition, the same methods that have been used to compare social cognition across species can also be used to measure individual differences within species and to test the hypothesis that individual differences in social cognition are linked to differences in reproductive success. |
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0003-3472 |
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Equine Behaviour @ team @ |
Serial |
6025 |
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Author |
Novacek, M.J. |
Title |
Mammalian phylogeny: shaking the tree |
Type |
Journal Article |
Year |
1992 |
Publication |
Nature |
Abbreviated Journal |
Nature |
Volume |
356 |
Issue |
6365 |
Pages |
121-125 |
Keywords |
Animals; Evolution; Fossils; Mammals/classification/*genetics; *Phylogeny |
Abstract |
Recent palaeontological discoveries and the correspondence between molecular and morphological results provide fresh insight on the deep structure of mammalian phylogeny. This new wave of research, however, has yet to resolve some important issues. |
Address |
American Museum of Natural History, New York 10024 |
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English |
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0028-0836 |
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Notes |
PMID:1545862 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
3546 |
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Author |
Van Schaik, C. |
Title |
Why are some animals so smart? |
Type |
Journal Article |
Year |
2006 |
Publication |
Scientific American |
Abbreviated Journal |
Sci Am |
Volume |
294 |
Issue |
4 |
Pages |
64-71 |
Keywords |
Animals; *Behavior, Animal; Cognition; Conditioning (Psychology); Culture; Environment; Equipment and Supplies; Evolution; Indonesia; *Intelligence; Learning; Pongo pygmaeus/*physiology; Social Behavior |
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Anthropological Institute and Museum, University of Zurich, Switzerland |
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0036-8733 |
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Notes |
PMID:16596881 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2830 |
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Author |
Parker, S.T. |
Title |
A general model for the adaptive function of self-knowledge in animals and humans |
Type |
Journal Article |
Year |
1997 |
Publication |
Consciousness and Cognition |
Abbreviated Journal |
Conscious Cogn |
Volume |
6 |
Issue |
1 |
Pages |
75-86 |
Keywords |
*Adaptation, Psychological; Animals; *Awareness; Concept Formation; Evolution; Humans; Phylogeny; *Self Concept; Species Specificity |
Abstract |
This article offers a general definition of self-knowledge that embraces all forms and levels of self-knowledge in animals and humans. It is hypothesized that various levels of self-knowledge constitute an ordinal scale such that each species in a lineage displays the forms of self-knowledge found in related species as well as new forms it and its sister species may have evolved. Likewise, it is hypothesized that these various forms of levels of self-knowledge develop in the sequence in which they evolved. Finally, a general hypothesis for the functional significance of self-knowledge is proposed along with subhypotheses regarding the adaptive significance of various levels of self-knowledge in mammals including human and nonhuman primates. The general hypothesis is that self-knowledge serves as a standard for assessing the qualities of conspecifics compared to those of the self. Such assessment is crucial to deciding among alternative reproductive and subsistence strategies. The qualities that are assessed, which vary across taxa, range from the size and strength of the self to its mathematical or musical abilities. This so-called assessment model of self-knowledge is based on evolutionary biological models for social selection and the role of assessment in animal communication. |
Address |
Anthropology Department, Sonoma State University, Rohnert Park, California, USA. Parker@Sonoma.edu |
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English |
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1053-8100 |
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Notes |
PMID:9170562 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
4160 |
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Author |
Goodwin, D. |
Title |
The importance of ethology in understanding the behaviour of the horse |
Type |
Journal Article |
Year |
1999 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
Volume |
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Issue |
28 |
Pages |
15-19 |
Keywords |
*Animal Husbandry; Animals; *Behavior, Animal; Bonding, Human-Pet; Evolution; *Horses; Social Behavior |
Abstract |
Domestication has provided the horse with food, shelter, veterinary care and protection, allowing individuals an increased chance of survival. However, the restriction of movement, limited breeding opportunities and a requirement to expend energy, for the benefit of another species, conflict with the evolutionary processes which shaped the behaviour of its predecessors. The behaviour of the horse is defined by its niche as a social prey species but many of the traits which ensured the survival of its ancestors are difficult to accommodate in the domestic environment. There has been a long association between horses and man and many features of equine behaviour suggest a predisposition to interspecific cooperation. However, the importance of dominance in human understanding of social systems has tended to overemphasize its importance in the human-horse relationship. The evolving horse-human relationship from predation to companionship, has resulted in serial conflicts of interest for equine and human participants. Only by understanding the nature and origin of these conflicts can ethologists encourage equine management practices which minimise deleterious effects on the behaviour of the horse. |
Address |
Anthrozoology Institute, University of Southampton, Bassett Crescent East, Southampton S016 7PX, UK |
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English |
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PMID:11314229 |
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no |
Call Number |
refbase @ user @ |
Serial |
1920 |
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Author |
Scheffer, M.; van Nes, E.H. |
Title |
Self-organized similarity, the evolutionary emergence of groups of similar species |
Type |
Journal Article |
Year |
2006 |
Publication |
Proceedings of the National Academy of Sciences of the United States of America |
Abbreviated Journal |
Proc. Natl. Acad. Sci. U.S.A. |
Volume |
103 |
Issue |
16 |
Pages |
6230-6235 |
Keywords |
Animals; *Competitive Behavior; *Ecosystem; *Evolution; *Models, Biological |
Abstract |
Ecologists have long been puzzled by the fact that there are so many similar species in nature. Here we show that self-organized clusters of look-a-likes may emerge spontaneously from coevolution of competitors. The explanation is that there are two alternative ways to survive together: being sufficiently different or being sufficiently similar. Using a model based on classical competition theory, we demonstrate a tendency for evolutionary emergence of regularly spaced lumps of similar species along a niche axis. Indeed, such lumpy patterns are commonly observed in size distributions of organisms ranging from algae, zooplankton, and beetles to birds and mammals, and could not be well explained by earlier theory. Our results suggest that these patterns may represent self-constructed niches emerging from competitive interactions. A corollary of our findings is that, whereas in species-poor communities sympatric speciation and invasion of open niches is possible, species-saturated communities may be characterized by convergent evolution and invasion by look-a-likes. |
Address |
Aquatic Ecology and Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 8080, 6700 DD, Wageningen, The Netherlands. marten.scheffer@wur.nl |
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0027-8424 |
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PMID:16585519 |
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no |
Call Number |
refbase @ user @ |
Serial |
510 |
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Author |
Amdam, G.V.; Csondes, A.; Fondrk, M.K.; Page, R.E.J. |
Title |
Complex social behaviour derived from maternal reproductive traits |
Type |
Journal Article |
Year |
2006 |
Publication |
Nature |
Abbreviated Journal |
Nature |
Volume |
439 |
Issue |
7072 |
Pages |
76-78 |
Keywords |
Aging/physiology; Animals; Bees/*physiology; *Evolution; Feeding Behavior/*physiology; Female; Infertility, Female; Maternal Behavior/*physiology; Ovary/physiology; Pollen/metabolism; Reproduction/*physiology; *Social Behavior |
Abstract |
A fundamental goal of sociobiology is to explain how complex social behaviour evolves, especially in social insects, the exemplars of social living. Although still the subject of much controversy, recent theoretical explanations have focused on the evolutionary origins of worker behaviour (assistance from daughters that remain in the nest and help their mother to reproduce) through expression of maternal care behaviour towards siblings. A key prediction of this evolutionary model is that traits involved in maternal care have been co-opted through heterochronous expression of maternal genes to result in sib-care, the hallmark of highly evolved social life in insects. A coupling of maternal behaviour to reproductive status evolved in solitary insects, and was a ready substrate for the evolution of worker-containing societies. Here we show that division of foraging labour among worker honey bees (Apis mellifera) is linked to the reproductive status of facultatively sterile females. We thereby identify the evolutionary origin of a widely expressed social-insect behavioural syndrome, and provide a direct demonstration of how variation in maternal reproductive traits gives rise to complex social behaviour in non-reproductive helpers. |
Address |
Arizona State University, School of Life Sciences, Tempe, Arizona 85287, USA. Gro.Amdam@asu.edu |
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1476-4687 |
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PMID:16397498 |
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no |
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refbase @ user @ |
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531 |
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