Between-male variation in sperm size, velocity and longevity in sand martins Riparia riparia
نویسندگان
چکیده
F. Helfenstein (correspondence), Evolutionary Ecology Group, Zoological Institute, University of Bern, Baltzerstrasse 6, CH-3012 Bern, Switzerland. E-mail: [email protected]. R. H. Wagner, Konrad Lorenz Institute, Austrian Academy of Sciences, Savoyenstrasse 1a, A-1160 Vienna, Austria. T. Szép, Institute of Environmental Sciences, College of Nyı́regyháza, P.O. Box 166, H-4401 Nyı́regyháza, Hungary. Z. Nagy, MME/BirdLife Hungary, Költo ut 21, H-1121 Budapest, Hungary. B. Kempenaers, Department Behavioural Ecology, Evolutionary Genetics, Max Planck Institute for Ornithology, Postfach 1564, D-82305 Starnberg, Germany.
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