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| Author |
Witte, K.; Ryan, M.J. |
| Title |
Mate choice copying in the sailfin molly, Poecilia latipinna, in the wild |
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Journal Article |
| Year |
2002 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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63 |
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5 |
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943-949 |
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1809 |
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| Author |
Slagsvold, T.; Viljugrein, H. |
| Title |
Mate choice copying versus preference for actively displaying males by female pied flycatchers |
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Journal Article |
| Year |
1999 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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57 |
Issue |
3 |
Pages |
679-686 |
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1810 |
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White, D.J.; Galef Jr, B.G. |
| Title |
Mate choice copying and conspecific cueing in Japanese quail,Coturnix coturnix japonica |
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Journal Article |
| Year |
1999 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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57 |
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2 |
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465-473 |
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1811 |
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Dugatkin, L.A. |
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A comment on Lafleur et al.'s re-evaluation of mate-choice copying in guppies |
Type |
Journal Article |
| Year |
1998 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
56 |
Issue |
2 |
Pages |
513-514 |
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1812 |
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Hoglund, J.; Alatalo, R.V.; Gibson, R.M.; Lundberg, A. |
| Title |
Mate-choice copying in black grouse |
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Journal Article |
| Year |
1995 |
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Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
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49 |
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6 |
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1627-1633 |
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1817 |
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Livoreil, B.; Giraldeau, L. |
| Title |
Patch departure decisions by spice finches foraging singly or in groups |
Type |
Journal Article |
| Year |
1997 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
54 |
Issue |
4 |
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967-977 |
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The marginal value theorem predicts that when resources are clumped in space, a forager can maximize its rate of intake by deciding to leave a patch when its current feeding rate falls below the average for the habitat. A group version of the model predicts that when rate-maximizing group members share a patch, they should leave sooner, and each with less gain, than single animals exploiting the same patch. We tested these predictions in the laboratory by measuring patch departure decisions of spice finches, Lonchura punctulataexploiting food patches alone or in groups of three under two habitats that require different travel times. As predicted, group members left the patch sooner and with fewer seeds than single foragers. Unlike the model's assumptions, however, birds did not share the patch equally, and their exploitation curves could not be simply derived from those of single foragers. Grouping decreased the effect of travel time on patch exploitation. Moreover, within each group the bird expected to leave first delayed its departure although it collected fewer seeds than the others. This delayed departure could aim to maintain group membership. We noted an increased variability in seed number collected by group members compared with single foragers, which could be a cost of group foraging.Copyright 1997 The Association for the Study of Animal Behaviour1997The 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:9344448 |
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2138 |
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| Author |
Richards, S.A.; de Roos, A.M. |
| Title |
When is habitat assessment an advantage when foraging? |
Type |
Journal Article |
| Year |
2001 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
61 |
Issue |
6 |
Pages |
1101-1112 |
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Foragers can often show a broad range of strategies when searching for resources. The simplest foraging strategy is to search randomly within a habitat; however, foragers can often assess habitat quality over various spatial scales and use this information to keep themselves in, or direct themselves to, regions of high resource abundance or low predation risk. We investigated models that describe a population of consumers competing for a renewable resource that is distributed among discrete patches. Our aim was to identify what foraging strategy or strategies are expected to persist within a population, where strategies differ in the degree of habitat assessment (i.e. none, local, or global). We were interested in how the optimal strategies are dependent on the cost of assessment and habitat structure (i.e. the variation in renewal rates and predation risks among patches). The models showed that the simple random foraging strategy (i.e. make no habitat assessments) often persisted even when the cost of habitat assessment was low. Persistence could occur when habitat assessment and population dynamics generated an ideal free distribution because it could be exploited by the random foragers. Habitat assessment was more advantageous when consumers could not achieve ideal free distributions, which was more likely as patches became less productive. When productivity was low we sometimes observed the situation where different foraging strategies generated resource heterogeneities that promoted their coexistence, and this could occur even when all patches were intrinsically identical. |
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2153 |
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Richards, M.P.M. |
| Title |
Maternal behaviour in virgin female golden hamsters (Mesocricetus auratus waterhouse): the role of the age of the test pup |
Type |
Journal Article |
| Year |
1966 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
14 |
Issue |
2-3 |
Pages |
303-309 |
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Summary One hundred and forty-four naive virgin female golden hamsters were each given a single 15 min test with three pups aged from day 1 (<24 hr) to day 18. A group of eight females was tested with each age of pup. Pups aged from day 1 to day 6 were generally attacked like prey, killed and eaten. Pups of intermediate age (day 6 to day 10) were usually initially attacked but this was often followed by maternal responses. The females', behaviour with the oldest pups suggested that they were being treated as strnge adult intruders. This result differs from that of a similar experiment with mice in which the youngest pups were found to be the most effective for eliciting materal responses. An explanation for this difference in terms of the evolutionary history of the golden hamster species is proposed. |
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2155 |
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| Author |
Richards, M.P.M. |
| Title |
Maternal behaviour in the golden hamster: responsiveness to young in virgin, pregnant, and lactating females |
Type |
Journal Article |
| Year |
1966 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
14 |
Issue |
2-3 |
Pages |
310-313 |
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Summary Three groups of eight female golden hamsters without prior breeding experience were presented with three newborn pups for a 15 min test period. Group V were virgin females, group P pregnant females and group L lactating females. Groups P and L were tested within 24 hr of parturition. Group V attacked and killed all pups presented. Group P showed maternal responses after initial attacks while group L accepted the pups. Groups P and L did not differ significantly on measures of maternal responsiveness but all three groups differed significantly from one another on measures of attacking behaviour and the eating of young. |
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2156 |
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| Author |
Noirot, E.; Richards, M.P.M. |
| Title |
Maternal behaviour in virgin female golden hamsters: Changes consequent upon initial contact with pups |
Type |
Journal Article |
| Year |
1966 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
14 |
Issue |
1 |
Pages |
7-10 |
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Summary Initial contact with pups of a certain age causes changes in virgin female hamsters' behaviour with pups of another age. This was shown by comparing the behaviour with 5-day-old pups in groups of naive (control) animals and of animals given one previous contact either with 1, 5 or 9-day-old pups. Maternal responses were more intense in the animals previously presented with 1 or 9-day-old pups than in the control animals. Attacking was increased after initial contact with 1-day-old pups and decreased after initial contact with 9-day-old pups. Animals presented twice with the same pattern did not show marked changes in either of the two activities. |
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2157 |
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