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Title of Journal: Agroforest Syst

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Abbravation: Agroforestry Systems

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Springer Netherlands

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DOI

10.1007/bf02581186

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1572-9680

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Floral resource partitioning by ants and bees in a

Authors: Wesley Dáttilo Rodrigo L Martins Vera Uhde Janaína C Noronha Fernando P Florêncio Thiago J Izzo
Publish Date: 2012/02/22
Volume: 85, Issue: 1, Pages: 105-111
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Abstract

The fruit production of flowering plants critically depends on the pollination services provided by animals that compete for flower resources The output of competitive interactions between ants and bees for inflorescences of jambolan Syzygium jambolanum Myrtaceae in an agroforestry system in Brazilian Meridional Amazonian are an interesting system of investigation due the possibility to control variables experimentally In 20 S jambolanum individuals we performed 300 treatments in different inflorescences of two strata upper and lower as follows 1 ants exclusion 2 bees exclusion and 3 control group where ants and bees could access the inflorescences There was no difference in the number of inflorescences volume of nectar and sugar concentration between the strata Also the visitors considered are distributed equally in the tree’s stratum When bees were prevented from access the inflorescences ants dominated more inflorescences only in the lower stratum On the contrary when ants were excluded bees visited more inflorescences only in the upper stratum We conclude that ants prevent the access to bees and vice versa as the result of different ability of resource utilization and foraging strategies Thus preventing the access of ants to the floral nectar could increase the level of nectar available to pollinators of S jambolanum thereby increasing productivity and reducing economic lossesWe thank RE Vicente for her assistance during the fieldwork and Office National des Forêts Brazil by logistical support We also thank CAPES by masters fellowship to WD VH JCN and FPF This research was conducted as part of an ecology field course from the Ecology and Conservation of Biodiversity Graduate Program of the Universidade Federal de Mato Grosso This is publication 16 in the NEBAM technical series

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