Seed mass and dispersal capacity in wind-dispersed diaspores

Is there necessarily a trade-off between seed size (mass) and dispersal capacity for wind-dispersed diaspores? Within three families (Pinaceae, Aceraceae, and Leguminosae) with asymmetric samaras, shape is maintained (isometry) despite size change. Consequently, within these three families, equilibrium descent velocity is proportional to samara mass raised to the 1/6 power and, necessarily, larger samaras are more poorly dispersed

[1]  The dispersal of winged fruits and seeds differing in autorotative behaviour , 1990 .

[2]  D. Greene,et al.  The aerodynamics of plumed seeds , 1990 .

[3]  U. Motro,et al.  More on Optimal Rates of Dispersal: Taking into Account the Cost of the Dispersal Mechanism , 1989, The American Naturalist.

[4]  G. Matlack.  DIASPORE SIZE, SHAPE, AND FALL BEHAVIOR IN WIND-DISPERSED PLANT SPECIES1 , 1987 .

[5]  C. Augspurger,et al.  Wind Dispersal of Artifical Fruits Varying in Mass, Area, and Morphology , 1987 .

[6]  C. Augspurger,et al.  MORPHOLOGY AND DISPERSAL POTENTIAL OF WIND‐DISPERSED DIASPORES OF NEOTROPICAL TREES , 1986 .

[7]  Simon A. Levin,et al.  Population Models and Community Structure in Heterogeneous Environments , 1986 .

[8]  E. Nordheim,et al.  Notes: Flight Characteristics and Dispersal Potential of Maple Samaras , 1984 .

[9]  C. Augspurger,et al.  WIND DISPERSAL OF FRUITS WITH VARIABLE SEED NUMBER IN A TROPICAL TREE (LONCHOCARPUS PENTAPHYLLUS: LEGUMINOSAE) , 1983 .

[10]  D. Sprugel,et al.  Correcting for Bias in Log‐Transformed Allometric Equations , 1983 .

[11]  Douglas S. Green.  THE TERMINAL VELOCITY AND DISPERSAL OF SPINNING SAMARAS , 1980 .

[12]  J. Harper.  Population Biology of Plants , 1979 .

[13]  C W McCutchen,et al.  The Spinning Rotation of Ash and Tulip Tree Samaras , 1977, Science.

[14]  C. S. Shopmeyer.  Seeds of woody plants in the United States , 1974 .

[15]  R. Norberg.  AUTOROTATION, SELF‐STABILITY, AND STRUCTURE OF SINGLE‐WINGED FRUITS AND SEEDS (SAMARAS) WITH COMPARATIVE REMARKS ON ANIMAL FLIGHT , 1973 .

[16]  John L. Harper,et al.  The Shapes and Sizes of Seeds , 1970 .

[17]  J. P. Grime,et al.  Seedling Establishment in Vertical Gradients of Sunlight , 1965 .