Abstract
In the present study, we investigated morphological changes of hatchlings from asexually and sexually produced eggs of Daphnia galeata and D. similis against fish kairomones. In both species, hatchlings from asexual eggs showed induced traits, such as short body length, long tail spine and high relative tail spine length when influenced by fish kairomones. However, hatchlings from sexual eggs expressed high relative tail spine length regardless of kairomones presence. The results showed that the inducibility of morphological defences depends on the egg type, with inducible defences predominant in asexual eggs while fixed defences are employed by the offspring of sexual eggs in Daphnia.
Original language | English |
---|---|
Pages (from-to) | 314-318 |
Number of pages | 5 |
Journal | Russian Journal of Ecology |
Volume | 45 |
Issue number | 4 |
DOIs | |
Publication status | Published - Jul 2014 |
Bibliographical note
Funding Information:ACKNOWLEDGMENTS This work was supported by the Korea National Long Term Ecological Research Program sponsored by the Ministry of Environment of Korea. This research was also conducted as part of postdoctoral program which was supported by the Sunchon National University.
Keywords
- Daphnia
- asexual eggs
- fish kairomones
- hatchling
- morphologies
- sexual eggs