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Author |
Slagsvold, T.; Viljugrein, H. |
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Title |
Mate choice copying versus preference for actively displaying males by female pied flycatchers |
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1999 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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57 |
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3 |
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679-686 |
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1810 |
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Author |
Galef, B. G. JR; White, D.J. |
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Title |
Mate-choice copying in Japanese quail, Coturnix coturnix japonica |
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1998 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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55 |
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3 |
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545-552 |
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1814 |
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Author |
Goldschmidt, T.; Bakker, T.C.M.; Feuth-de Bruijn, E. |
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Title |
Selective copying in mate choice of female sticklebacks |
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Year |
1993 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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45 |
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3 |
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541-547 |
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There is evidence that female three-spined sticklebacks, Gasterosteus aculeatus L., prefer to mate with males whose nests contain eggs rather than with males with empty nests. While there is consensus on this point, a dispute exists about whether this preference should be attributed to a direct effect of the eggs on the female's entering the nest or, alternatively, to a positive impact of the eggs on the courtship behaviour and breeding coloration of the male. In the field experiment reported here females strongly preferred nests with eggs over empty nests. Additionally, females were less likely to enter risky nests with eggs: nests that contained fewer eggs than one average clutch or more eggs than the average nest content of parental males in this population. However, in the field possible differences in male attractiveness were not controlled for. In supplementary laboratory experiments the effect on female choice of possible changes in male attractiveness (intensified courtship and coloration) as a result of the presence of eggs in the nest was tested. Other differences in male attractiveness as a result of differences in male quality (body size, breeding coloration before the test, territory quality and size) were controlled for. When females had no access to the nests, they showed no preference for males with eggs in their nests in simultaneous choice tests. These results, together with the earlier published data, make it likely that the preference of females for nests with eggs is partly a direct consequence of the eggs themselves. So female sticklebacks are influenced by the mate choice behaviour of other females, but remain selective as to the actual nest content. |
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1818 |
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Reale, D.; Festa-Bianchet, M. |
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Title |
Predator-induced natural selection on temperament in bighorn ewes |
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2003 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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65 |
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3 |
Pages |
463-470 |
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Temperament traits in animals may have important fitness consequences, but have received little attention from ecologists or evolutionary biologists. A few studies have linked variation in temperament with fitness, but none has measured selection on temperament traits. We estimated the strength of selection on female boldness and docility on bighorn sheep ewes, Ovis canadensis. The Ram Mountain population experienced little predation pressure during the first 25 years of study, then 2 years (1997 and 1998) of frequent predation by cougars, Puma concolor, during which adult ewe mortality almost tripled over the long-term average, to 27% a year. During years of high predation, we found moderate selection favouring bold ewes, and age-specific selection on docility. Old ewes appeared more vulnerable to predation than young ewes. In contrast, no evidence of selection on temperament traits was observed during 2 years of low predation (1996 and 1999). These results suggest predator-induced selection favouring bold and nondocile ewes. Leadership was highly correlated with age and may increase the risk of predator encounter. Leadership alone, however, could not explain the higher vulnerability of old ewes to predation. Cougar predation on bighorn sheep occurs sporadically and unpredictably, probably because individual cougars often are prey specialists. Cougar predation may have limited microevolutionary effects on temperament in bighorn sheep, because it mostly affects ewes near the end of their reproductive life span and because of potential countervailing selection on boldness and docility. Copyright 2003 Published by Elsevier Science Ltd on behalf of The Association for the Study of Animal Behaviour. |
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2029 |
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Pompilio, L.; Kacelnik, A. |
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Title |
State-dependent learning and suboptimal choice: when starlings prefer long over short delays to food |
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2005 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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Volume |
70 |
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3 |
Pages |
571-578 |
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Recent studies have used labels such as `work ethics', `sunk costs' and `state-dependent preferences' for apparent anomalies in animals' choices. They suggest that preference between options relates to the options' history, rather than depending exclusively on the expected payoffs. For instance, European starlings, Sturnus vulgaris, trained to obtain identical food rewards from two sources while in two levels of hunger preferred the food source previously associated with higher hunger, regardless of the birds' state at the time of testing. We extended this experimentally and theoretically by studying starlings choosing between sources that differed not only in history but also in the objective properties (delay until reward) of the payoffs they delivered. Two options (PF and H) were initially presented in single-option sessions when subjects were, respectively, prefed or hungry. While option PF offered a delay until reward of 10 s in all treatments, option H delivered delays of 10, 12.5, 15 and 17.5 s in four treatments. When training was completed, we tested preference between the options. When delays in both options were equal (10 s), the birds strongly preferred H. When delay in H was 17.5 s, the birds were indifferent, with intermediate results for intermediate treatments. Preference was not mediated by disrupted knowledge of the delays. Thus, preferences were driven by past state-dependent gains, rather than by the joint effect of the birds' state at the time of choice and knowledge of the absolute properties of each alternative, as assumed in state-dependent, path-independent models of optimal choice. |
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2104 |
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Kacelnik, A. |
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R.C. Bolies and M.D. Beecher, Editors, Evolution and Learning, Lawrence Erlbaum, Hillsdale, New Jersey (1988), p. x |
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1990 |
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Animal Behaviour. |
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Anim. Behav. |
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40 |
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3 |
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602-603 |
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2119 |
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Kacelnik, A. |
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Title |
Information primacy or preference for familiar foraging techniques? A critique of Inglis & Ferguson |
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1987 |
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Animal Behaviour. |
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Anim. Behav. |
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35 |
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3 |
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925-926 |
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2121 |
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Author |
Mottley, K.; Giraldeau, L.A. |
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Title |
Experimental evidence that group foragers can converge on predicted producer-scrounger equilibria |
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2000 |
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Animal Behaviour. |
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Anim. Behav. |
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60 |
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3 |
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341-350 |
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When foraging together, animals are often observed to feed from food discoveries of others. The producer-scrounger (PS) game predicts how frequently this phenomenon of food parasitism should occur. The game assumes: (1) at any moment all individuals can unambiguously be categorized as either playing producer (searching for undiscovered food resources) or scrounger (searching for exploitation opportunities), and (2) the payoffs received from the scrounger tactic are negatively frequency dependent; a scrounger does better than a producer when the scrounger tactic is rare, but worse when it is common. No study to date has shown that the payoffs of producer and scrounger conform to the game's assumptions or that groups of foragers reach the predicted stable equilibrium frequency (SEF) of scrounger, whereby both tactics obtain the same payoff. The current study of three captive flocks of spice finches, Lonchura punctulata, provides the first test of the PS game using an apparatus in which both assumptions of the PS game are met. The payoffs to the scrounger, measured as feeding rate (seeds/s), were highly negatively frequency dependent on the frequency of scrounger. The feeding rate for scrounger declined linearly while the rate for producer either declined only slightly or not at all with increasing scrounger frequency. When given the opportunity to alternate between tactics, the birds changed their use of each, such that the group converged on the predicted SEF of scrounger after 5-8 days of testing. Individuals in this study, therefore, demonstrated sufficient plasticity in tactic use such that the flock foraged at the SEF of scrounger. Copyright 2000 The Association for the Study of Animal Behaviour. |
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Department of Biology, Concordia University |
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English |
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0003-3472 |
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PMID:11007643 |
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2136 |
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Crowell-Davis, S.; Houpt, K.A. |
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The ontogeny of flehmen in horses |
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1985 |
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Animal Behaviour. |
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Anim. Behav. |
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33 |
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3 |
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739-745 |
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Flehmen behaviour in Welsh pony (Equus caballus) mares and foals living on pasture was observed during 807 h of focal sampling. A series of flehmens performed at one site was defined as a flehmen incident. Colts exhibited flehmen incidents and performed flehmen more frequently during an incident than did fillies or mares. Filies exhibited flehmen incidents more frequently than did mares, but did not flehmen more frequently during an incident. Colts exhibited a peak frequency of performing flehmen and of flehmen incidents during weeks 1-4 with a subsequent linear decrease in frequency up to weeks 17-20. Usually, flehmen occurred without the subject having had direct contact of the nostrils, lips, or tongue with a possible stimulant. Twenty-six per cent of the flehmen incidents occurred during or after urination by another pony. Seven per cent of the incidents occurred during or after urination by the pony showing flehmen. |
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Equine Behaviour @ team @ |
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2261 |
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Gosling, L.M.; Roberts, S.C. |
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Testing ideas about the function of scent marks in territories from spatial patterns |
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2001 |
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Animal Behaviour. |
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Anim. Behav. |
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62 |
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3 |
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F7-F10 |
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Equine Behaviour @ team @ |
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