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	Author	Dreier, S.; van Zweden, J.S.; D'Ettorre, P.
	Title	Long-term memory of individual identity in ant queens			Type	Journal Article
	Year	2007	Publication	Biology Letters	Abbreviated Journal	Biol Lett
	Volume	3	Issue	5	Pages	459-462
	Keywords	Aggression; Animals; Ants/physiology; Conditioning, Operant; Evolution; Female; Memory; *Recognition (Psychology); Social Dominance
	Abstract	Remembering individual identities is part of our own everyday social life. Surprisingly, this ability has recently been shown in two social insects. While paper wasps recognize each other individually through their facial markings, the ant, Pachycondyla villosa, uses chemical cues. In both species, individual recognition is adaptive since it facilitates the maintenance of stable dominance hierarchies among individuals, and thus reduces the cost of conflict within these small societies. Here, we investigated individual recognition in Pachycondyla ants by quantifying the level of aggression between pairs of familiar or unfamiliar queens over time. We show that unrelated founding queens of P. villosa and Pachycondyla inversa store information on the individual identity of other queens and can retrieve it from memory after 24h of separation. Thus, we have documented for the first time that long-term memory of individual identity is present and functional in ants. This novel finding represents an advance in our understanding of the mechanism determining the evolution of cooperation among unrelated individuals.
	Address	Institute of Biology, Department of Population Biology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark. sdreier@bi.ku.dk
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1744-9561	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:17594958			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4649
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	Author	Clauss, M.; Castell, J.C.; Kienzle, E.; Schramel, P.; Dierenfeld, E.S.; Flach, E.J.; Behlert, O.; Streich, W.J.; Hummel, J.; Hatt, J.-M.
	Title	Mineral absorption in the black rhinoceros (Diceros bicornis) as compared with the domestic horse			Type	Journal Article
	Year	2007	Publication	Journal of Animal Physiology and Animal Nutrition	Abbreviated Journal	J Anim Physiol Anim Nutr (Berl)
	Volume	91	Issue	5-6	Pages	193-204
	Keywords
	Abstract	To test whether mineral recommendations for horses are likely to guarantee adequate mineral provision for black rhinoceroses (Diceros bicornis), we investigated the apparent absorption (aA) of macro- and microminerals in eight black rhinoceroses from three zoological institutions in a total of 32 feeding trials with total faecal collection, with additional data from three unpublished studies (18 feeding trials). Feeds and faeces were analysed for Ca, P, Mg, Na, K, Fe, Mn, Cu, Zn and Co. The resulting aA coefficients, and the linear relationships of apparently absorbable dietary mineral content to total dietary mineral content [per 100 g dry matter (DM)], were compared with data for domestic horses. Rhinoceroses had significantly higher aA coefficients for Ca and Mg (because of a higher calculated 'true' absorption), and lower ones for Na and K (because of calculated higher endogenous faecal losses). High absorption efficiency for divalent cations is hypothesized to be an adaptation to a natural diet of particularly high Ca:P ratio (approximately 14:1); an effective removal of Ca from the ingesta guarantees sufficient P availability at the fermentation site in the hindgut. Higher faecal losses of Na and K are hypothesized to be linked to a higher faecal bulk per DM intake in black rhinoceroses as compared with horses because of a generally lower digestive efficiency. There were no relevant differences in the absorption patterns of microminerals. In particular, there were no discernable differences in Fe absorption within the rhinoceroses for diets with and without tannin supplementation. Several of the zoo diets assessed in this study were deficient in Cu, Mn or Zn, and most contained excessive levels of Fe when compared with horse requirements. The findings of this study indicate that differences in mineral absorption between occur even between species of similar digestive anatomy; that in particular, Ca absorption might vary between hindgut fermenters with Ca:P ratio in their natural diet; that Na might be a particularly limiting factor in the ecology of free-ranging rhinoceroses; that moderate doses of tannins do not seem to markedly influence mineral absorption; and that diets for captive animals should contain adequate, but not excessive mineral levels.
	Address	Division of Zoo Animals, Exotic Pets and Wildlife, Vetsuisse Faculty, University of Zurich, Switzerland. mclauss@vetclinics.uzh.ch
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0931-2439	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:17516940			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2619
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	Author	Morell, V.
	Title	Nicola Clayton profile. Nicky and the jays			Type
	Year	2007	Publication	Science (New York, N.Y.)	Abbreviated Journal	Science
	Volume	315	Issue	5815	Pages	1074-1075
	Keywords	Animals; Behavior, Animal; Cognition; England; History, 20th Century; History, 21st Century; Intelligence; Memory; Passeriformes/*physiology; Portraits
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1095-9203	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:17322042			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2833
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	Author	Cohen, J.
	Title	Animal behavior. The world through a chimp's eyes			Type
	Year	2007	Publication	Science (New York, N.Y.)	Abbreviated Journal	Science
	Volume	316	Issue	5821	Pages	44-45
	Keywords	Animal Communication; Animals; Behavior, Animal; Cognition; Cooperative Behavior; Culture; Memory; Pan troglodytes/psychology; Social Behavior; Tool Use Behavior
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1095-9203	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:17412932			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	2832
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	Author	Straub, A.
	Title	An intelligent crow beats a lab			Type	Journal Article
	Year	2007	Publication	Science (New York, N.Y.)	Abbreviated Journal	Science
	Volume	316	Issue	5825	Pages	688
	Keywords	Animals; Behavior, Animal; Cognition; *Crows; Dogs; Intelligence; Memory
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1095-9203	ISBN		Medium
	Area		Expedition		Conference
	Notes	PMID:17478698			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4102
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	Author	Silk, J.B.
	Title	Social Components of Fitness in Primate Groups			Type	Journal Article
	Year	2007	Publication	Science	Abbreviated Journal	Science
	Volume	317	Issue	5843	Pages	1347-1351
	Keywords
	Abstract	There is much interest in the evolutionary forces that favored the evolution of large brains in the primate order. The social brain hypothesis posits that selection has favored larger brains and more complex cognitive capacities as a means to cope with the challenges of social life. The hypothesis is supported by evidence that shows that group size is linked to various measures of brain size. But it has not been clear how cognitive complexity confers fitness advantages on individuals. Research in the field and laboratory shows that sophisticated social cognition underlies social behavior in primate groups. Moreover, a growing body of evidence suggests that the quality of social relationships has measurable fitness consequences for individuals.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes	10.1126/science.1140734			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4239
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	Author	Pennisi, E.
	Title	PSYCHOLOGY: Nonhuman Primates Demonstrate Humanlike Reasoning			Type	Journal Article
	Year	2007	Publication	Science	Abbreviated Journal	Science
	Volume	317	Issue	5843	Pages	1308-
	Keywords
	Abstract
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4240
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	Author	Wood, J.N.; Glynn, D.D.; Phillips, B.C.; Hauser, M.D.
	Title	The Perception of Rational, Goal-Directed Action in Nonhuman Primates			Type	Journal Article
	Year	2007	Publication	Science	Abbreviated Journal	Science
	Volume	317	Issue	5843	Pages	1402-1405
	Keywords
	Abstract	Humans are capable of making inferences about other individuals' intentions and goals by evaluating their actions in relation to the constraints imposed by the environment. This capacity enables humans to go beyond the surface appearance of behavior to draw inferences about an individual's mental states. Presently unclear is whether this capacity is uniquely human or is shared with other animals. We show that cotton-top tamarins, rhesus macaques, and chimpanzees all make spontaneous inferences about a human experimenter's goal by attending to the environmental constraints that guide rational action. These findings rule out simple associative accounts of action perception and show that our capacity to infer rational, goal-directed action likely arose at least as far back as the New World monkeys, some 40 million years ago.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4241
Permanent link to this record



	Author	Wood, J.N.; Glynn, D.D.; Phillips, B.C.; Hauser, M.D.
	Title	online material			Type	Miscellaneous
	Year	2007	Publication	Science	Abbreviated Journal	Science
	Volume	317	Issue	5843	Pages	1402-1405
	Keywords
	Abstract	Humans are capable of making inferences about other individuals' intentions and goals by evaluating their actions in relation to the constraints imposed by the environment. This capacity enables humans to go beyond the surface appearance of behavior to draw inferences about an individual's mental states. Presently unclear is whether this capacity is uniquely human or is shared with other animals. We show that cotton-top tamarins, rhesus macaques, and chimpanzees all make spontaneous inferences about a human experimenter's goal by attending to the environmental constraints that guide rational action. These findings rule out simple associative accounts of action perception and show that our capacity to infer rational, goal-directed action likely arose at least as far back as the New World monkeys, some 40 million years ago.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes	10.1126/science.1144663			Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4242
Permanent link to this record



	Author	Dunbar, R.I.M.; Shultz, S.
	Title	Evolution in the Social Brain			Type	Journal Article
	Year	2007	Publication	Science	Abbreviated Journal	Science
	Volume	317	Issue	5843	Pages	1344-1347
	Keywords
	Abstract	The evolution of unusually large brains in some groups of animals, notably primates, has long been a puzzle. Although early explanations tended to emphasize the brain's role in sensory or technical competence (foraging skills, innovations, and way-finding), the balance of evidence now clearly favors the suggestion that it was the computational demands of living in large, complex societies that selected for large brains. However, recent analyses suggest that it may have been the particular demands of the more intense forms of pairbonding that was the critical factor that triggered this evolutionary development. This may explain why primate sociality seems to be so different from that found in most other birds and mammals: Primate sociality is based on bonded relationships of a kind that are found only in pairbonds in other taxa.
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	Equine Behaviour @ team @			Serial	4243
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