caa a22 4500 477091342 CHVBK 20180405111516.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF01237882 doi (NATIONALLICENCE)springer-10.1007/BF01237882 Thomas Sean Department of Organismic and Evolutionary Biology, Harvard University, 02138, Cambridge, MA, USA aut Reproductive allometry in Malaysian rain forest trees: Biomechanics versus optimal allocation [Elektronische Daten] [Sean Thomas] Summary: Quantitative predictions of reproductive allometry in iteroparous plants may be derived from two bodies of theory: biomechanics and optimal allocation theory. Biomechanical theory predicts allometric scaling exponents between reproductive (R) and vegetative (V) biomass in the range of 0.44-1.33, while very general models of life history evolution predictR-V exponents > 1 in all cases. These predictions are examined in light of allometric patterns of flower and fruit production in 32 species of Malaysian rain forest trees. Among these species the mean estimatedR-V exponents are in the range 1.8-2.0 for staminate flower, pistillate flower and fruit production. This range of exponent values provides unambiguous support for some of the general predictions of optimal allocation models, but not for biomechanical theory. Optimal allocation models also predict a positive relationship between species size andR-V slope and a positive relationship between species size andR-V intercept parameters. The latter, but not the former prediction is supported by the data.R-V allometries in sexes of dioecious species were also found to differ in intercept, though not slope, reflecting smaller sizes at reproductive onset in staminate trees. Further critical examinations of reproductive allometry are encouraged as a relatively unexplored avenue for increasing the contact of theory and data in studies of life history evolution in long-lived organisms such as tropical trees. Chapman & Hall, 1996 allocation nationallicence allometry nationallicence biomechanics nationallicence reproduction nationallicence tropical trees nationallicence Evolutionary Ecology Kluwer Academic Publishers 10/5(1996-09-01), 517-530 0269-7653 10:5<517 1996 10 10682 https://doi.org/10.1007/BF01237882 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01237882 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Thomas Sean Department of Organismic and Evolutionary Biology, Harvard University, 02138, Cambridge, MA, USA aut NATIONALLICENCE 773 0- Evolutionary Ecology Kluwer Academic Publishers 10/5(1996-09-01), 517-530 0269-7653 10:5<517 1996 10 10682 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer