| Records |
| Author |
Ayeni, J.S.O. |
| Title |
Utilization of waterholes in Tsavo National Park (East) |
Type |
Journal Article |
| Year |
1975 |
Publication |
African Journal of Ecology |
Abbreviated Journal |
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Volume  |
13 |
Issue |
3-4 |
Pages |
305-323 |
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| Abstract |
Summary Utilization of waterholes by wildlife was studied between April, 1973 and July, 1974 in Tsavo National Park (East), south of the Voi river. Seasonality was an important factor which influenced the various aspects of waterhole utilization. The numbers of the herbivores utilizing the waterholes increased during the dry season but fell during the rains. Some ungulates also moved near to the artificial waterholes in the dry season but moved away from them during the rains when they drank from natural water-holes formed in clay pans filled with rain water. A basic pattern of waterhole utilization dominated by small (adult-size) species during day-time 06.00–18.00 hours and larger species at night 18.00–06.00 hours is described. The separation in times of arrival and deparature peaks of waterhole utilization, and average coincidence of percentages of paired species populations are used to show that big-game attained a measure of time-spaced ecological separation at the waterholes. The water relations of some day-time and night-time drinkers are discussed. From the baseline study the management implications of the development of additional waterholes in the park are discussed. |
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Blackwell Publishing Ltd |
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| ISSN |
1365-2028 |
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| Call Number |
Equine Behaviour @ team @ |
Serial |
5364 |
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| Author |
Connor, R.C.; Mann, J.; Tyack, P.L.; Whitehead, H. |
| Title |
Social evolution in toothed whales |
Type |
Journal Article |
| Year |
1998 |
Publication |
Trends in Ecology & Evolution |
Abbreviated Journal |
Trends. Ecol. Evol |
| Volume |
13 |
Issue |
6 |
Pages |
228-232 |
| Keywords |
odontocetes; toothed whales; social evolution; communication; bottlenose dolphins; sperm whales; long-term studies; foraging |
| Abstract |
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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no |
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Equine Behaviour @ team @ |
Serial |
4789 |
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| Author |
Czaran, T. |
| Title |
Game theory and evolutionary ecology: Evolutionary Games & Population Dynamics by J. Hofbauer and K. Sigmund, and Game Theory & Animal Behaviour, edited by L.A. Dugatkin and H.K. Reeve |
Type |
Journal Article |
| Year |
1999 |
Publication |
Trends in Ecology & Evolution |
Abbreviated Journal |
Trends. Ecol. Evol |
| Volume |
14 |
Issue |
6 |
Pages |
246-247 |
| Keywords |
Game theory; Evolutionary ecology; Population dynamics; Ethology |
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no |
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refbase @ user @ |
Serial |
485 |
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| Author |
Dugatkin, L.A.; Earley, R.L. |
| Title |
Group fusion: the impact of winner, loser, and bystander effects on hierarchy formation in large groups |
Type |
Journal Article |
| Year |
2003 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
Behav. Ecol. |
| Volume |
14 |
Issue |
3 |
Pages |
367-373 |
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| Abstract |
We present the results of a series of computer simulations that examined the impact of winner, loser, and bystander effects on hierarchy formation in fused groups. These effects and their implications for hierarchy structure and aggressive interactions were first examined in small four-member groups. Subsequent to this, the two small groups were fused into a single larger group. Further interactions took place in this fused group, generating a new hierarchy. Our models demonstrate clearly that winner, loser, and bystander effects strongly influence both the structure and types of interactions that emerge from the fusion of smaller groups. Four conditions produced results in which the same general patterns were uncovered in pre- and postfusion groups: (1) winner effects alone, (2) bystander loser effects alone, (3) winner and bystander winner effects operating simultaneously, and (4) all four effects in play simultaneously. Outside this parameter space, hierarchy structure and the nature of aggressive interactions differed in pre- and postfusion groups. When only loser effects were in play, one of the two clear alphas from the prefused groups dropped in rank in the eight-member fused group. When bystander winner effects were in play, it was difficult to rank any of the eight individuals in the fused group, and players interacted almost exclusively with those that were not in their original four-member group. When loser and bystander loser effects operated simultaneously, two top-ranking individuals emerged in the fused groups, but the relative rank of the other players was difficult to assign. |
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| Notes |
10.1093/beheco/14.3.367 |
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no |
| Call Number |
refbase @ user @ |
Serial |
519 |
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| Author |
Taberlet, P.; Waits, L.P.; Luikart, G. |
| Title |
Noninvasive genetic sampling: look before you leap |
Type |
Journal Article |
| Year |
1999 |
Publication |
Trends in Ecology & Evolution |
Abbreviated Journal |
Trends Ecol. Evol |
| Volume |
14 |
Issue |
8 |
Pages |
323-327 |
| Keywords |
Hairs; Feces; Feathers; Allelic dropout; Individual identification; Conservation genetics; Behavioural ecology; Pilot study; Microsatellites; Probability of identity |
| Abstract |
Noninvasive sampling allows genetic studies of free-ranging animals without the need to capture or even observe them, and thus allows questions to be addressed that cannot be answered using conventional methods. Initially, this sampling strategy promised to exploit fully the existing DNA-based technology for studies in ethology, conservation biology and population genetics. However, recent work now indicates the need for a more cautious approach, which includes quantifying the genotyping error rate. Despite this, many of the difficulties of noninvasive sampling will probably be overcome with improved methodology. |
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0169-5347 |
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Approved |
no |
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Equine Behaviour @ team @ |
Serial |
6573 |
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| Author |
Shettleworth, S.J. |
| Title |
Cognitive ecology: field or label? |
Type |
Journal Article |
| Year |
2000 |
Publication |
Trends in Ecology & Evolution |
Abbreviated Journal |
Trends. Ecol. Evol |
| Volume |
15 |
Issue |
4 |
Pages |
161 |
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| Address |
Depts of Psychology and Zoology, University of Toronto, Toronto, Ontario, Canada M5S 3G3 |
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English |
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0169-5347 |
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| Notes |
PMID:10717686 |
Approved |
no |
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refbase @ user @ |
Serial |
373 |
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| Author |
Naguib, M.; Amrhein, V.; Kunc, H.P. |
| Title |
Effects of territorial intrusions on eavesdropping neighbors: communication networks in nightingales |
Type |
Journal Article |
| Year |
2004 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
Behav. Ecol. |
| Volume |
15 |
Issue |
6 |
Pages |
1011-1015 |
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| Abstract |
Animal communication often occurs in communication networks in which multiple signalers and receivers are within signaling range of each other. In such networks, individuals can obtain information on the quality and motivation of territorial neighbors by eavesdropping on their signaling interactions. In songbirds, extracting information from interactions involving neighbors is thought to be an important factor in the evolution of strategies of territory defense. In a playback experiment with radio-tagged nightingales Luscinia megarhynchos we here demonstrate that territorial males use their familiar neighbors' performance in a vocal interaction with an unfamiliar intruder as a standard for their own response. Males were attracted by a vocal interaction between their neighbor and a simulated stranger and intruded into the neighbor's territory. The more intensely the neighbor had interacted with playback, the earlier the intrusions were made, indicating that males eavesdropped on the vocal contest involving a neighbor. However, males never intruded when we had simulated by a second playback that the intruder had retreated and sang outside the neighbor's territory. These results suggest that territorial males use their neighbors' singing behavior as an early warning system when territorial integrity is threatened. Simultaneous responses by neighboring males towards unfamiliar rivals are likely to be beneficial to the individuals in maintaining territorial integrity. |
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| Notes |
10.1093/beheco/arh108 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
499 |
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| Author |
Healy,S.; Braithwaite, V |
| Title |
Cognitive ecology: a field of substance? |
Type |
Journal Article |
| Year |
2000 |
Publication |
Trends in Ecology & Evolution |
Abbreviated Journal |
Trends. Ecol. Evol |
| Volume |
15 |
Issue |
1 |
Pages |
22-26 |
| Keywords |
Cognitive ecology; Neuroethology; Cognition; Ecology; Evolution; Orientation mechanisms |
| Abstract |
In 1993, Les Real invented the label 'cognitive ecology'. This label was intended for work that brought cognitive science and behavioural ecology together. Real's article stressed the importance of such an approach to the understanding of behaviour. At the end of a decade in which more interdisciplinary work on behaviour has been seen than for many years, it is time to assess whether cognitive ecology is a label describing an active field. |
| Address |
Division of Biological Sciences, King's Buildings, University of Edinburgh, West Mains Road, Edinburgh, UK EH9 3JT |
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English |
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0169-5347 |
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| Notes |
PMID:10603501 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
837 |
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| Author |
Dingemanse, N.J.; de Goede, P. |
| Title |
The relation between dominance and exploratory behavior is context-dependent in wild great tits |
Type |
Journal Article |
| Year |
2004 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
Behav. Ecol. |
| Volume |
15 |
Issue |
6 |
Pages |
1023-1030 |
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| Abstract |
Individual differences in personality affect behavior in novel or challenging situations. Personality traits may be subject to selection because they affect the ability to dominate others. We investigated whether dominance rank at feeding tables in winter correlated with a heritable personality trait (as measured by exploratory behavior in a novel environment) in a natural population of great tits, Parus major. We provided clumped resources at feeding tables and calculated linear dominance hierarchies on the basis of observations between dyads of color-ringed individuals, and we used an experimental procedure to measure individual exploratory behavior of these birds. We show that fast-exploring territorial males had higher dominance ranks than did slow-exploring territorial males in two out of three samples, and that dominance related negatively to the distance between the site of observation and the territory. In contrast, fast-exploring nonterritorial juveniles had lower dominance ranks than did slow-exploring nonterritorial juveniles, implying that the relation between dominance and personality is context-dependent in the wild. We discuss how these patterns in dominance can explain earlier reported effects of avian personality on natal dispersal and fitness. |
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no |
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Equine Behaviour @ team @ |
Serial |
5390 |
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| Author |
Nakagawa, S. |
| Title |
A farewell to Bonferroni: the problems of low statistical power and publication bias |
Type |
Journal Article |
| Year |
2004 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
beheco |
| Volume |
15 |
Issue |
6 |
Pages |
1044-1045 |
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1045-2249 |
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no |
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Equine Behaviour @ team @ |
Serial |
6560 |
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