Kimenyi Bisangabagabo Dieudonne
National University of Rwanda, Rwanda
Title: Plant dispersal Systems in Neo tropical Forest in EAC: Availability of dispersal agents for constructing Zoochorous
Biography
Biography: Kimenyi Bisangabagabo Dieudonne
Abstract
We used abiotic and abiotic factors are predictors of the promotions of different dispersal systems in Neotropical forest, to test whether the geographical patterns in dispersal systems are mostly related to the availability of resources for constructing Zoochorous fruits or to the availability of dispersal agent. Location 101one hectare vegetation plots established in eight Hold ridge life -zones in Neotropical forests.
Methods: We assigned dispersal systems to 1345 species and 700 morphospecies, using the relative frequency and relative abundance of endozoochory, zoochory, anemochory and hydrochory per plot as response variables., controlling for spatial autocorrelation and phylogenetic constraints.
Results: Endozoochory was highly represented in all plots, high levels of rainfall and low precipitation seasonally were associated with high promotions of zoochory. And low promotions of anemochory. The biomass of primates was positively associated with Endozoochory. Contrary to the resources available hypothesis, was most common in soil with law carbon densities. Finally, the proportions of anemochory and hydrochory were highest in wind areas and flooded forests respectively.
Conclusion: Although there is a relationship between rainfall, zoochory and anemochory, the absence of any positive relationships between zoochory, temperature, soil total nitrogen density and soil carbon density shows that the proportions of dispersal systems in EAC"East African Community "Neotropical forests are mostly related to the availability of dispersal agents.