%0 Journal Article
%T Produ£¿£¿o de frutos e distribui£¿£¿o espacial de angiospermas com frutos zooc¨®ricos em uma Floresta Ombr¨®fila Mista no Rio Grande do Sul, Brasil
%A Paise
%A Gabriela
%A Vieira
%A Emerson M.
%J Brazilian Journal of Botany
%D 2005
%I Scientific Electronic Library Online
%R 10.1590/S0100-84042005000300017
%X we investigated, during 14 months, patterns of fruit production of animal dispersed angiosperms in a patch of mixed ombrophilous forest (mof) in the national park of aparados da serra, state of rio grande do sul, south brazil. for a total of 570 individuals sampled in a 2.56 ha area we identified 27 species of animal dispersed angiosperms (13 families). the most abundant families were: myrtaceae (eight species), melastomataceae, solanaceae, and rubiaceae (three species each). most sampled life forms were shrubs (46.0% of all individuals 37.0% of species total), followed by treelets (31.9% and 22.2%), herbs (10.2% and 18.5%), trees (8.7% and 18.5%), and epiphytes (3.2% and 3.7%). red (22.2%) and orange (18.5%) fruits prevailed, as well as small fruits (70% of fruit total with size of 1-10 mm ¡Á 1-10 mm), and fruits with one to ten small seeds (96% of total species with seed size of 1-10 mm ¡Á 1-10 mm). the three species that produced the greatest amount of fruits were: myrceugenia miersiana (gardner) d. legrand & kausel (myrtaceae) (tree - 61.0% of total production of fruits), and the melastomes leandra variabilis cogn. (shrub - 18.1%) and miconia cinerascens miq. (shrub - 8.6%). these species showed an aggregated dispersion pattern (standardized morisita index > 0.5 for all of them). the monthly number of fruiting species was significantly correlated with monthly temperature in the same month (rs = 0,70; p < 0,01), and with rainfall in the previous month (rs = 0,67; p < 0,02). the seed production of araucaria angustifolia (bertol.) kuntze occurred during the period with the lowest number of angiosperm species producing animal-dispersed fruits. this non-overlapping between events might favor the occurrence of frugivorous animals, enabling a higher resource offer during the entire year.
%K fruit production
%K mixed ombrophilous forest
%K phenology
%K spatial distribution
%K zoochory.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0100-84042005000300017&lng=en&nrm=iso&tlng=en