%0 Journal Article %T Sperm investment in male meadow voles is affected by the condition of the nearby male conspecifics %A Vaughn, Ashlee A. %A delBarco-Trillo, Javier %A Ferkin, Michael H. %J Behavioral Ecology %V 19 %N 6 %P 1159-1164 %@ 1045-2249 %D 2008-07-30 %I Oxford University Press %~ DeepDyve