Data from: Does male reproductive effort increase with age? Courtship in fiddler crabs
| Main Authors: | Hayes, Catherine L., Booksmythe, Isobel, Jennions, Michael D., Backwell, Patricia R. Y. |
|---|---|
| Format: | info dataset Journal |
| Terbitan: |
, 2013
|
| Subjects: | |
| Online Access: |
https://zenodo.org/record/5016996 |
Daftar Isi:
- Theory suggests that reproductive effort generally increases with age, but life history models indicate that other outcomes are possible. Empirical data are needed to quantify variation in actual age-dependence. Data are readily attainable for females (e.g. clutch/egg size), but not for males (e.g. courtship effort). To quantify male effort one must: (a) experimentally control for potential age-dependent changes in female presence; and, crucially, (b) distinguish between the likelihood of courtship being initiated, the display rate, and the total time invested in courting before stopping ('courtship persistence'). We provide a simple experimental protocol, suitable for many taxa, to illustrate how to obtain this information. We studied courtship waving by male fiddler crabs, Uca annulipes. Given indeterminate growth, body size is correlated with age. Larger males were more likely to wave at females and waved more persistently. They did not, however, have a higher courtship rate (waves/second). A known female preference for males with higher display rates explains why, once waving is initiated, all males display at the same rate.
- Did males wave or notThis excel spreadsheet contains the data relating to whether males of all ages were equally likely to wave at females at all. This data was collected in the field in Zanzibar. See the second worksheet for a description of the headings.Waving data - duration and intensityThis excel spreadsheet contains the data relating to the persistence and intensity of the males' waving bouts. It was collected in the field in Zanzibar. Please see the second worksheet for a description of thecolumn headings.