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Biodiversity & Conservation
Frequency of reproduction
| Definition | |
|---|---|
| Semelparous | Breeding only once then dying (Barnes et al., 1993). |
| < Biannual | Breeds less frequently than every two years. |
| Biannual episodic | Breeds every second year but in one or more discrete periods initiated by some trigger (for example a lunar cycle). |
| Biannual protracted | Breeds once every two years over an extended or drawn out period. |
| Annual episodic | Breeds every year but in one or more discrete periods initiated by some trigger (for example a lunar cycle). |
| Annual protracted | Breeds every year over an extended or drawn out period. |
References
- Barnes, R.S.K., Calow, P. and Olive P.J.W., 1993. The invertebrates: a new synthesis. Oxford: Blackwell Science Ltd.
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