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首页> 外文期刊>Revista rvore >Preda??o e remo??o de sementes de cinco espécies de palmeiras por Guerlinguetus ingrami (Thomas, 1901) em um fragmento urbano de Floresta Atlantica Montana
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Preda??o e remo??o de sementes de cinco espécies de palmeiras por Guerlinguetus ingrami (Thomas, 1901) em um fragmento urbano de Floresta Atlantica Montana

机译:Gueralingings Ingrami(Thomas,1901)在亚特兰蒂卡蒙大拿森林的城市碎片中预测和划线

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摘要

This study investigated the fruvigory pattern of Guerlinguetus ingrami, considering the removal, predation and caching of the fruits of palm species (Syagrus pseudococos, S. ruschiana, Bactris setosa, Polyandrococos caudescens and Euterpe edulis) in an urban forest fragment of the montane Atlantic forest in the state of Espírito Santo, Southeastern Brazil. These palm species show characteristics theoretically expected to be seen in plants dispersed by squirrels (trees with a high productivity and whose fruits are large, with few seeds covered by rigid endocarps and that are not utilized by other arborean seed predators). Here we describe differences in the frugivory pattern exhibited by G. ingrami towards plants with the same dispersal syndrome. The diaspores of species with larger fruits were removed and cached by the squirrel at rates higher than the palms with small fruits. As a result of the high specificity showed by the squirrel's activities related to seed dispersal, this rodent should be important in compensatory shifts only in small, defaunated forest fragments. Therefore, the selectivity of G. ingrami could indicate that its role as a seed dispersor into small forest fragments would be restricted, due to the grater likelihood of mortality associated to the plants scattered by this species. The role of G. ingrami as a seed predator must be quantified for the effects of its behavioral activities in small fragments to be understood.
机译:本研究调查了棕榈树果实(Syagrus Pseudococos,S. Ruschiana,Bactris Setosa,Polydrococosa,Polydrococos Caudessa,Polydrococos Adulis)在Montane大西洋森林的城市森林片段中的去除,捕食和缓存的Fruvigory模式在巴西东南部的EspíritoSanto。这些棕榈物种展示了大理论图中预期的特征预期在灰鼠分散的植物中(具有高生产率的树木,并且其水果大,少量种子被刚性内核覆盖,并且不被其他树木种子捕食者使用)。在这里,我们描述了G. Ingrami朝向具有相同分散综合征的植物的节日模式的差异。除去具有较大果实的物种的缺水,并由鼠柱高于小水果的速率缓存。由于松鼠与种子分散的活动表现出的高特异性,这种啮齿动物在仅在小型,除许多森林碎片中的补偿转移中应该是重要的。因此,G. Ingrami的选择性可能表明,由于与该物种散射的植物相关的植物的磨损速度可能性,其作用将受到限制到小森林片段中。必须量化G. Ingrami作为种子捕食者的作用,以便在要理解的小片段中的行为活动的影响。

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