Amorim M E, De Marco P
Laboratório de Ecologia Teórica e Síntese, Departamento de Ecologia, UFG, Goiânia, GO, Brazil.
Braz J Biol. 2011 Aug;71(3):709-17. doi: 10.1590/s1519-69842011000400016.
Byrsonima coccolobifolia is a tropical plant from the Malpighiaceae family, distributed in the neotropical savanna fields and pollinated by bees known as "collecting-oil bees". In this study, conducted in a Cerrado area located on a farm in the city of Silvânia, GO, the following hypothesis was tested: the greater the isolation degree of a plant, the lower its fruit production due to access difficulties for pollinators. Using a linear regression analysis, it was possible to relate the fruiting rate with the degree of isolation of each B. coccolobifolia individual and consequently it was found that the isolation had no influence on the pollination rate, an unexpected event that can be explained by the distance amongst individuals not being large enough to limit the movement of pollinators, or because cross-pollination was not the predominant form of reproduction, since the rate of cross-pollination was similar to self-pollination. It was also found that the proportion of fruits produced was lower than expected, a factor which may also have influenced the results.
可可李（Byrsonima coccolobifolia）是一种来自金虎尾科的热带植物，分布于新热带稀树草原地区，由被称为“采油蜂”的蜜蜂授粉。在位于戈亚斯州锡尔瓦尼亚市一个农场的塞拉多地区进行的这项研究中，检验了以下假设：植物的隔离程度越高，由于传粉者获取困难，其果实产量越低。通过线性回归分析，能够将结果率与每个可可李个体的隔离程度联系起来，结果发现隔离对授粉率没有影响，这是一个意外事件，可以解释为个体之间的距离不够大，不足以限制传粉者的活动，或者因为异花授粉不是主要的繁殖形式，因为异花授粉率与自花授粉率相似。还发现所产果实的比例低于预期，这一因素也可能影响了结果。
