AUTHOR=Bulla Martin , Küpper Clemens , Lank David B. , Albrechtová Jana , Loveland Jasmine L. , Martin Katrin , Teltscher Kim , Cragnolini Margherita , Lierz Michael , Albrecht Tomáš , Forstmeier Wolfgang , Kempenaers Bart TITLE=Sperm swimming speed and morphology differ slightly among the three genetic morphs of ruff sandpiper (Calidris pugnax), but show no clear polymorphism JOURNAL=Frontiers in Ecology and Evolution VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2024.1476254 DOI=10.3389/fevo.2024.1476254 ISSN=2296-701X