Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto-FFCLRP, Universidade de São Paulo-USP, Av. Bandeirantes 3900, CEP 14040-901, Ribeirão Preto, SP, Brazil.
J Insect Sci. 2013;13:23. doi: 10.1673/031.013.2301.
The Atlantic Forest stretches along Brazil's Atlantic coast, from Rio Grande do Norte State in the north to Rio Grande do Sul State in the south, and inland as far as Paraguay and the Misiones Province of Argentina. This biome is one of the eight biodiversity hotspots in the world and is characterized by high species diversity. Euglossini bees are known as important pollinators in this biome, where their diversity is high. Due to the high impact of human activities in the Atlantic Forest, in the present study the community structure of Euglossini was assessed in a coastal lowland area, Parque Estadual da Serra do Mar--Núcleo Picinguaba (PESM), and in an island, Parque Estadual da Ilha Anchieta (PEIA), Ubatuba, São Paulo State, Brazil. Sampling was carried out monthly, from August 2007 to July 2009, using artificial baits with 14 aromatic compounds to attract males. Twenty-three species were recorded. On PEIA, Euglossa cordata (L.) (Hymenoptera: Apidae) represented almost two thirds of the total species collected (63.2%). Euglossa iopoecila (23.0%) was the most abundant species in PESM but was not recorded on the island, and Euglossa sapphirina (21.0%) was the second most frequent species in PESM but was represented by only nine individuals on PEIA. The results suggest that these two species may act as bioindicators of preserved environments, as suggested for other Euglossini species. Some authors showed that Eg. cordata is favored by disturbed environments, which could explain its high abundance on Anchieta Island. Similarly, as emphasized by other authors, the dominance of Eg. cordata on the island would be another factor indicative of environmental disturbance.
大西洋森林沿巴西北部的大西洋海岸延伸，北起北里奥格兰德州，南至南里奥格兰德州，内陆延伸至巴拉圭和阿根廷的米西奥内斯省。这个生物群系是世界上八个生物多样性热点地区之一，以物种多样性高为特征。Euglossini 蜜蜂以该生物群系的重要传粉者而闻名，其多样性很高。由于人类活动对大西洋森林的影响很大，本研究评估了沿海低地地区——马拉若岛 Serra do Mar 州立公园——Picinguaba 核心区（PESM）和巴西圣保罗州 Ubatuba 岛——安奇塔亚州立公园（PEIA）的 Euglossini 群落结构。采样于 2007 年 8 月至 2009 年 7 月每月进行，使用 14 种芳香化合物的人工诱饵吸引雄性。记录了 23 个物种。在 PEIA 上，Euglossa cordata (L.)（膜翅目：蜜蜂科）占总采集物种的近三分之二（63.2%）。Euglossa iopoecila（23.0%）是 PESM 中最丰富的物种，但在岛上没有记录，而 Euglossa sapphirina（21.0%）是 PESM 中第二常见的物种，但在 PEIA 上仅记录了 9 个个体。结果表明，这两个物种可能像其他 Euglossini 物种一样，作为受保护环境的生物指标。一些作者表明，Eg. cordata 更喜欢受干扰的环境，这可以解释其在安奇塔亚岛上的高丰度。同样，正如其他作者强调的那样，Eg. cordata 在岛上的优势是环境干扰的另一个指示因素。
