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Risk-sensitive foraging in bitterlings, Rhodeus sericus: effects of food requirement and breeding site quality
| Content Provider | Semantic Scholar |
|---|---|
| Author | Young, Ronald J. Clayton, Helen Barnard, Christopher Francis Ja |
| Copyright Year | 1990 |
| Abstract | Risk-sensitive foraging preferences in bitterlings were examined in relation to changing food deprivation and intake relative to estimated requirement. When running above estimated requirement and presented with a choice of constant and variable feeding stations, a group of seven fish were all risk-averse (avoiding high variance in reward rate). When running below, six out of the seven fish showed increased risk-aversion and one became risk-prone (choosing high variance). Increasing the degree of food deprivation while running below requirement for one of the risk-averse fish, however, resulted in a switch to risk-proneness, a response that was repeated in a second group of six fish running below requirement. Variance in reward rate also appeared to influence the choice of a potential breeding site by a male bitterling. When breeding sites of apparent equal quality were provided at the constant and variable feeding stations, the fish preferred the constant station; the variable station was preferred only when breeding site quality at the constant station was relatively low. |
| Starting Page | 288 |
| Ending Page | 297 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/S0003-3472(05)80923-6 |
| Volume Number | 40 |
| Alternate Webpage(s) | https://api.elsevier.com/content/article/pii/S0003347205809236 |
| Alternate Webpage(s) | https://www.sciencedirect.com/science/article/pii/S0003347205809236?dgcid=api_sd_search-api-endpoint |
| Alternate Webpage(s) | https://doi.org/10.1016/S0003-3472%2805%2980923-6 |
| Journal | Animal Behaviour |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
