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Connor, R.C.; Mann, J.; Tyack, P.L.; Whitehead, H. |
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Title  |
Social evolution in toothed whales |
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Journal Article |
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Year |
1998 |
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Trends in Ecology & Evolution |
Abbreviated Journal |
Trends. Ecol. Evol |
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13 |
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6 |
Pages |
228-232 |
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odontocetes; toothed whales; social evolution; communication; bottlenose dolphins; sperm whales; long-term studies; foraging |
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Two contrasting results emerge from comparisons of the social systems of several odontocetes with terrestrial mammals. Researchers have identified remarkable convergence in prominent features of the social systems of odontocetes such as the sperm whale and bottlenose dolphin with a few well-known terrestrial mammals such as the elephant and chimpanzee. In contrast, studies on killer whales and Baird's beaked whale reveal novel social solutions to aquatic living. The combination of convergent and novel features in odontocete social systems promise a more general understanding of the ecological determinants of social systems in both terrestrial and aquatic habitats, as well as the relationship between relative brain size and social evolution. |
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0169-5347 |
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Equine Behaviour @ team @ |
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4789 |
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Purvis, A. |
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Title |
The h index: playing the numbers game |
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Journal Article |
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Year |
2006 |
Publication |
Trends in Ecology & Evolution |
Abbreviated Journal |
Trends. Ecol. Evol |
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21 |
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8 |
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422-422 |
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Article Outline
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The ‘h index’ was developed recently as a measure of research performance [1]: a researcher's h is the number of his or her papers that have been cited at least h times. In their thoughtful critique of the index, Kelly and Jennions [2] point out many ways in which h is no better than ‘traditional’ bibliometrics, such as total citation counts. However, there is one way in which, for researchers, it could be very much better, especially if (as Hirsch suggests [1]) it is to inform hiring and promotion decisions. The skewed nature of the distribution of citations among publications means that most researchers have several papers that nearly but not quite count. Consequently, h can be distorted much more easily than can total citation count just by finding a subtle way to cite one's own papers that are ‘bubbling under’. Incidentally, bats show broadly the same life-history allometries as other mammalian clades [3]. |
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0169-5347 |
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Equine Behaviour @ team @ |
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5046 |
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