Experimental evidence for antagonistic effects of sperm competition in two sea urchin species
Luisa Kumpitsch, Lara Beckmann, Sophie E Hanson, Estefania Paredes, José González Fernández, Lucas Langer, Jan Terje Lifjeld, Erica H. Leder, Jonathan N Havenhand
The paper experiments on two sea urchin species to show sperm competition reduces fertilization success and increases F50, indicating antagonistic effects under sperm limitation.
bioRxiv · Oct 10, 2026 · PreprintEvolutionary Biology