RESISTANCE MECHANISM OF MOCKERNUT HICKORY (CARYA TOMENTOSA, JUGLANDA-CEAE) AND THE EVOLUTION OF ITS SEED PREDATORS (CONOTRACHELUS AFFINIS AND CUR-CULIO CARYAE, CURCULIONIDAE, COLEOPTERA)
摘 要 ：胡桃科植物含有数种化学物质,如胡桃酮(Juglone)(Brooks,1922;Massey,1925;Davis,1928;Bode,1958;Shen,1974),皂草甙(Saponin)(Handley,1961;Applebaum,1964;Applebaum et al.,1965;Hutchins,1966;Whittaker and Fee-ny,1971)和鞣酸(Tannin)(Nierenstein,1934;Wilkins et al.,1953;Pridham,1960;Dollahite et al.,1962;Kingsbury,1964;Vohra et al.,1966;Feeny,1968、1969、1970；Feeny et al., 1968;Sondheimer and Simeone,1970; Dement and Mooney,1974;Lawton,1976)等。
Abstract:Seeds of Mockernut Hickory represent a changing environmental resource in time and space to two species of snout beetles who partition the common food resource along a spatial and temporal gradient. Conotrachelus affinis, a generalized predator with short snout, utilizes early spring nuts with thin husk, unhardened shell, and little or no kernel in the endosperm. This beetle, a typical r-selected species, has a fast growth rate, short larval period (life cycle completed in 3 months) and emerges before shell...