Bouzan Angela Machado, Flinte Vivian, Macedo Margarete Valverde, Monteiro Ricardo Ferreira
Av. Carlos Chagas Filho, 373. CCS, IB, Laboratório de Ecologia de Insetos, Sala A0-111, Universidade Federal do Rio de Janeiro, Ilha do Fundão, CEP 21941-590, CP 68020, Rio de Janeiro, RJ, Brasil.
Zookeys. 2015 Dec 17(547):103-17. doi: 10.3897/zookeys.547.9723. eCollection 2015.
In this study we present an ecological pattern of elevation and temporal variations found in the Chrysomelidae in one of the highest mountains in southeastern Brazil. Monthly surveys using an entomological sweep-net were conducted between April 2011 and June 2012, at five different elevations (800 m, 1000 m, 1750 m, 2200 m and 2450 m). A total of 2318 individuals were collected, belonging to 91 species. The elevation and temporal patterns of distribution of Chrysomelidae were heavily dominated by the Galerucinae. This subfamily had the highest richness and abundance at intermediate altitudes and during the rainy season. Probably the food availability as well as abiotic factors this time of the year favor the development of Galerucinae. Also, most of the more abundant Galerucinae species showed broad elevation ranges but approximately 20% of these species were only collected on the mountaintop sites. We would expect these species to be ones most prone to extinction in a scenario of climate warming or even after local disturbances.
在本研究中，我们展示了在巴西东南部最高山脉之一中发现的叶甲科昆虫的海拔和时间变化的生态模式。2011年4月至2012年6月期间，使用昆虫扫网在五个不同海拔高度（800米、1000米、1750米、2200米和2450米）进行了月度调查。共收集到2318只个体，分属于91个物种。叶甲科昆虫的海拔和时间分布模式在很大程度上由叶甲亚科主导。该亚科在中等海拔和雨季具有最高的丰富度和丰度。可能是一年中这个时候的食物供应以及非生物因素有利于叶甲亚科的发育。此外，大多数数量较多的叶甲亚科物种显示出较宽的海拔范围，但其中约20%的物种仅在山顶地点被采集到。我们预计在气候变暖的情况下甚至在局部干扰之后，这些物种将是最容易灭绝的物种。
