Notes on the Behavior of the Masked Saltator in Southern Ecuador

Abstract

Is there a trade-off between egg weight and clutch size in wild Lesser Snow Geese (Anser caerulescens caerulescens)? Journal of Evolutionary Biology 2:457-472. MANN, F. E., AND J. S. SEDINGER. 1993. Nutrientreserve dynamics and control of clutch size in Northern Pintails breeding in Alaska. Auk 110: 264-278. NEWELL, L. C. 1988. Causes and consequences of egg weight variation in the Lesser Snow Goose (Chen caerulescens caerulescens). M.S. thesis, Queen's University, Kingston, Ontario. RAVELING, D. G. 1979. The annual cycle of body composition of Canada Geese with special reference to control of reproduction. Auk 96:234252. RoHwER, F. C. 1988. Interand intraspecific relationships between egg size and clutch size in waterfowl. Auk 105:161-176. RoHwER, F. C. 1991. Response to T. M. Blackburn. Auk 108:211-213. RoHwER, F. C. 1992. Evolution of reproductive patterns. Pages 486-539 in Ecology and management of breeding waterfowl (B. D. J. Batt, A. D. Afton, M. G. Anderson, C. D. Ankney, D. H. Johnson, J. A. Kadlec, and G. L. Krapu, Eds.). University of Minnesota Press, Minneapolis. RoHwER, F. C., AND D.1. EISENHAUER. 1989. Egg mass and clutch size relationships in geese, eiders, and swans. Ornis Scandinavica 20:43-48. RYDER, J. P. 1970. A possible factor in the evolution of clutch size in Ross' Goose. Wilson Bulletin 82: 5-13. SEDINGER, J. S., P. L. FLINT, AND M. S. LINDBERG. 1995. Environmental influence on life-history traits: Growth, survival, and fecundity in Brant Geese (Branta bernicla). Ecology 76:2404-2414.