from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. reproducing only once in a lifetime
Sorry, no etymologies found.
Organisms with r-selected traits range from bacteria and diatoms, through insects and weeds, to various semelparous cephalopods and mammals, especially small rodents.
Due to the semelparous reproduction typical of cephalopods, individual cuttlefish have one breeding season then die
Also most of them are semelparous that they lay eggs a lot at one time and die, but nautiloidea is exception.