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Author |
Fenton, B.; Ratcliffe, J. |
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Title |
Animal behaviour: eavesdropping on bats |
Type |
Journal Article |
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Year |
2004 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
429 |
Issue |
6992 |
Pages |
612-613 |
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Keywords |
Acoustics; Animals; Chiroptera/anatomy & histology/classification/genetics/*physiology; Echolocation/*physiology; *Evolution; Phylogeny; Predatory Behavior/physiology; Species Specificity |
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English |
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1476-4687 |
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PMID:15190335 |
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no |
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Call Number |
refbase @ user @ |
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500 |
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Author |
Seyfarth, R.M.; Cheney, D.L. |
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Title |
Grooming, alliances and reciprocal altruism in vervet monkeys |
Type |
Journal Article |
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Year |
1984 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
308 |
Issue |
5959 |
Pages |
541-543 |
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Keywords |
*Altruism; Animals; Cercopithecus/*physiology; Cercopithecus aethiops/*physiology; *Grooming; *Social Behavior; Vocalization, Animal |
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Abstract |
Reciprocal altruism refers to the exchange of beneficial acts between individuals, in which the benefits to the recipient exceed the cost to the altruist. Theory predicts that cooperation among unrelated animals can occur whenever individuals encounter each other regularly and are capable of adjusting their cooperative behaviour according to experience. Although the potential for reciprocal altruism exists in many animal societies, most interactions occur between closely related individuals, and examples of reciprocity among non-kin are rare. The field experiments on vervet monkeys which we present here demonstrate that grooming between unrelated individuals increases the probability that they will subsequently attend to each others' solicitations for aid. Vervets appear to be more willing to aid unrelated individuals if those individuals have behaved affinitively toward them in the recent past. In contrast, recent grooming between close genetic relatives appears to have no effect on their willingness to respond to each other's solicitations for aid. |
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0028-0836 |
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Notes |
PMID:6709060 |
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no |
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Call Number |
refbase @ user @ |
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704 |
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Author |
OUSTALET E |
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Title |
Une nouvelle espèce de zèbre, |
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Journal Article |
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Year |
1882 |
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Abbreviated Journal |
La Nature |
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Volume |
10 |
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Pages |
12-14 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1444 |
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Author |
Marean, C.W.; Gifford-Gonzalez, D. |
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Title |
Late Quaternary extinct ungulates of East Africa and palaeoenvironmental implications |
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Journal Article |
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Year |
1991 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
350 |
Issue |
6317 |
Pages |
418-420 |
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Abstract |
UNGULATE communities of two East African savannas, the Serengeti and Athi-Kapiti Plains, are dominated by wildebeest (Connochaetes taurinus) supplemented by zebra (Equus burchelli), topi (Damaliscus lunatus), hartebeest (Alcelaphus buselaphus), buffalo (Syncerus caffer) eland (Taurotragus oryx) and gazelles (Gazella grand and G. thomsoni)1-3. Before this research, little was known of East African large mammal communities in the Late Pleistocene and early to middle Holocene. We document an extinct impala-sized alcelaphine antelope that is numerically dominant in Late Pleistocene archaeofaunal assemblages from the Athi-Kapiti Plains. The extinct giant buffalo Pelorovis antiquus is present, and a number of arid-adapted regionally extinct species are common. The small alcelaphine is rare in northern Tanzania, but regionally extinct arid-adapted species are present in Late Pleistocene deposits. These data indicate that as recently as 12,000 years ago, the large mammal community structure of East African savannas was very different and dry grasslands and arid-adapted ungulates expanded at least as far south as northern Tanzania during the Last Glacial Maximum. |
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Notes |
10.1038/350418a0 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2345 |
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Author |
Bell, A.M. |
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Title |
Evolutionary biology: animal personalities |
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Year |
2007 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
447 |
Issue |
7144 |
Pages |
539-540 |
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Keywords |
Aggression/physiology/psychology; Animals; Behavior, Animal/*physiology; *Evolution; Humans; *Models, Biological; Personality/genetics/*physiology; Reproduction/genetics/physiology; Risk-Taking; Selection (Genetics) |
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English |
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1476-4687 |
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Notes |
PMID:17538607 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4099 |
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Author |
McElreath, R.; Luttbeg, B.; Fogarty, S.P.; Brodin, T.; Sih, A. |
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Title |
Evolution of animal personalities |
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Journal Article |
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Year |
2007 |
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Nature |
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Volume |
450 |
Issue |
7167 |
Pages |
E5-E5 |
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Nature Publishing Group |
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0028-0836 |
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Notes |
10.1038/nature06326 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4295 |
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Author |
Wolf, M.; van Doorn, G.S.; Leimar, O.; Weissing, F.J. |
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Title |
Wolf et al. reply |
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Journal Article |
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Year |
2007 |
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Nature |
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Volume |
450 |
Issue |
7167 |
Pages |
E5-E6 |
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Nature Publishing Group |
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0028-0836 |
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Notes |
10.1038/nature06327 |
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no |
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Call Number |
Equine Behaviour @ team @ |
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4297 |
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Author |
Berger, J. |
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Title |
Induced abortion and social factors in wild horses |
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Journal Article |
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Year |
1983 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
303 |
Issue |
5912 |
Pages |
59-61 |
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Keywords |
Abortion, Induced/*veterinary; Abortion, Veterinary/*etiology; Aggression/physiology; Animals; Evolution; Female; Horses/*physiology; Humans; Pregnancy; Sexual Behavior, Animal/*physiology |
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Abstract |
Much evidence now suggests that the postnatal killing of young in primates and carnivores, and induced abortions in some rodents, are evolved traits exerting strong selective pressures on adult male and female behaviour. Among ungulates it is perplexing that either no species have developed convergent tactics or that these behaviours are not reported, especially as ungulates have social systems similar to those of members of the above groups. Only in captive horses (Equus caballus) has infant killing been reported. It has been estimated that 40,000 wild horses live in remote areas of the Great Basin Desert of North America (US Department of Interior (Bureau of Land Management), unpublished report), where they occur in harems (females and young) defended by males. Here I present evidence that, rather than killing infants directly, invading males induce abortions in females unprotected by their resident stallions and these females are then inseminated by the new males. |
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0028-0836 |
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Notes |
PMID:6682487 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4365 |
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Author |
Milinski, M.; Rockenbach, B. |
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Title |
Human behaviour: Punisher pays |
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Journal Article |
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Year |
2008 |
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Abbreviated Journal |
Nature |
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Volume |
452 |
Issue |
7185 |
Pages |
297-298 |
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Abstract |
The tendency of humans to punish perceived free-loaders, even at a cost to themselves, is an evolutionary puzzle: punishers perish, and those who benefit the most are those who have never punished at all.
Humans are champions of cooperation. Reciprocity – the idea that, if I help you this time, you'll help me next time1 – is a secret of our success. |
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Nature Publishing Group |
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0028-0836 |
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Notes |
10.1038/452297a |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4405 |
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Author |
Dreber, A.; Rand, D.G.; Fudenberg, D.; Nowak, M.A. |
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Title |
Winners don/'t punish |
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Journal Article |
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Year |
2008 |
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Abbreviated Journal |
Nature |
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Volume |
452 |
Issue |
7185 |
Pages |
348-351 |
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Abstract |
A key aspect of human behaviour is cooperation1, 2, 3, 4, 5, 6, 7. We tend to help others even if costs are involved. We are more likely to help when the costs are small and the benefits for the other person significant. Cooperation leads to a tension between what is best for the individual and what is best for the group. A group does better if everyone cooperates, but each individual is tempted to defect. Recently there has been much interest in exploring the effect of costly punishment on human cooperation8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23. Costly punishment means paying a cost for another individual to incur a cost. It has been suggested that costly punishment promotes cooperation even in non-repeated games and without any possibility of reputation effects10. But most of our interactions are repeated and reputation is always at stake. Thus, if costly punishment is important in promoting cooperation, it must do so in a repeated setting. We have performed experiments in which, in each round of a repeated game, people choose between cooperation, defection and costly punishment. In control experiments, people could only cooperate or defect. Here we show that the option of costly punishment increases the amount of cooperation but not the average payoff of the group. Furthermore, there is a strong negative correlation between total payoff and use of costly punishment. Those people who gain the highest total payoff tend not to use costly punishment: winners don't punish. This suggests that costly punishment behaviour is maladaptive in cooperation games and might have evolved for other reasons. |
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Nature Publishing Group |
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0028-0836 |
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Notes |
10.1038/nature06723 |
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Call Number |
Equine Behaviour @ team @ |
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4406 |
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