Silva Juliano Z DA, Reis Maurício S Dos
Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Departamento de Fitotecnia, Rodovia Admar Gonzaga, 1346, Itacorubi, 88034-001 Florianópolis, SC, Brazil.
An Acad Bras Cienc. 2019;91(1):e20180537. doi: 10.1590/0001-3765201920180537. Epub 2019 Apr 8.
This study aimed to measure the wildlife consumption of Euterpe edulis fruit and use this data to discuss management possibilities. To estimate infructescence fruit volume consumed, collectors were installed in fruit-bearing palms. To characterize consumption from the ground, samples were placed next to fruiting palms. To identify wildlife and their activities, camera traps were installed in infructescences and on the ground. The results suggested that there was a small fruit surplus (1.8 %), and this finding indicated the possibility of a harvest to reduce food for the wildlife. However, recurrent variations in the annual fruit production (21.4 %) were also noted, and suggested that wildlife could tolerate some fruit harvesting. Thus, a harvest could be restricted to fruit volume that exceeds the annual average (94 kg/ha/year). Turdus flavipes, a migratory bird, was the most active species in the dispersal of seeds; this finding indicates the need for broader conservation strategies. Wildlife composition also changed along with the fruiting, and this alteration suggests that dependence on the fruit is variable among different species. Seed germination and seedling mortality were high, results that indicate that local conditions may have a predominant effect on seed volume in natural regeneration density.
本研究旨在测量野生动物对巴西棕榈果实的消耗量，并利用这些数据探讨管理的可能性。为了估算被消耗的果穗果实体积，在结果的棕榈树上安装了收集器。为了描述地面上的果实消耗情况，在结果棕榈树旁放置了样本。为了识别野生动物及其活动，在果穗和地面上安装了相机陷阱。结果表明存在少量的果实剩余（1.8%），这一发现表明有可能进行收获以减少野生动物的食物。然而，也注意到年果实产量存在反复变化（21.4%），这表明野生动物能够容忍一定程度的果实收获。因此，收获可以限制在超过年平均产量（94千克/公顷/年）的果实体积。黄腿鸫，一种候鸟，是种子传播中最活跃的物种；这一发现表明需要更广泛的保护策略。野生动物的组成也随着结果情况而变化，这种变化表明不同物种对果实的依赖程度各不相同。种子发芽率和幼苗死亡率很高，这些结果表明当地条件可能对自然更新密度中的种子数量有主要影响。
