My latest paper (published originally in Evolution) is on the ABC News website! The paper is on the interplay between sperm competition and precopulatory sexual selection acting on the forearm muscles of the Australian quacking frog Crinia georgiana. This is a pretty special species of frog where males fight each other in face-to-face wrestles, and multiple males might grasp a single female at the same time in polyandrous matings. Me and my co-authors Leigh Simmons and Dale Roberts found that whereas stronger males mate more often in low densities, as male density increases the selection on arm

muscles pretty much reverses, so that increased male-male competition actually leads to a disadvantage in investing in arm muscles and fighting behaviour! The paper in Evolution can be found here, and the story about it on ABC News is here.

Post date: Sep 23, 2015 9:3:56 AM