Rowley I (1983) Re-mating in birds. In: Bateson P (ed) Mate choice, Cambridge University Press, London, p 331-360.
Safina C (1990) Foraging habitat partitioning in roseate and common terns. The Auk 107: 351-358.
Safina C, Burger J (1988) Prey dynamics and the breeding phenology of Common Terns (Sterna hirundo). Auk 105:720–726.
Safina C, Burger J, Gochfeld M, Wagner RH (1988) Evidence for prey limitation of Common and Roseate Tern reproduction. Condor 90:852–859.
Safina C, Wagner RH, Witting DA, Smith KJ (1990) Prey delivered to roseate and common tern chicks; composition and temporal variability. Journal of Field Ornithology 61: 331-338.
15N natural abundance in oceanic suspended particulate Saino T, Hattori A (1980) matter. Nature 283: 752-754.
Saji NH, Goswami BN, Vinayachandran PN, Yamagata T (1999) A dipole mode in the tropical Indian Ocean. Nature 401:360–363.
Samish M, Alekseev E (2001) Arthropods as predators of ticks (Ixodoidea). Journal of Medical Entomology 38: 1-11.
Sanpera C, Ruiz X, Moreno R, Jover L, Waldron S (2007) Mercury and stable isotopes in feathers of audouin's gulls as indicators of feeding habits and migratory connectivity. The Condor 109: 268-275.
Schaub M, Kania W, Koppen U (2005) Variation of primary production during winter induces synchrony in survival rates in migratory white storks Ciconia ciconia. J Anim Ecol 74: 656-666.