Luna-Luna Alba Magali, Martins Caleb Califre, López-Pérez Andrés, Ramírez-Ponce Andrés, Contreras-Ramos Atilano
Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Mexico City, Mexico.
Postdoctoral fellow, Instituto de Biología, Departamento de Zoología, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Zookeys. 2022 Jul 11;1111:301-338. doi: 10.3897/zookeys.1111.68665. eCollection 2022.
Results of an aquatic beetle survey at Volcán Tacaná, Mexico, are presented with five altitudinal levels in a monthly sampling regime, aiming to estimate both diversity and altitudinal distribution patterns of the aquatic beetle fauna. The first list of aquatic beetle species from this mountain is presented, comprising 40 species in 32 genera and nine families, with four species recorded for the first time from Mexico and six recorded for the first time from Chiapas. The aquatic beetle fauna is characterized by Elmidae with 20 species, Dytiscidae with eleven species, Dryopidae with three, and Epimetopidae, Hydraenidae, Hydrophilidae, Gyrinidae, Lutrochidae, and Noteridae with one species each. The species composition through the sampled altitudinal gradient (670-1,776 m) was not homogeneous, with the elmid genera , , , and present at all levels, while , , and were present at levels 1-3 (673-1,214 m); dytiscids were mostly present at levels 4 and 5 (1,619-1,776 m), and dryopids were present only at levels 1-3. A Parsimony Analysis of Endemicity supports a general partition between altitudinal levels 1-3 and levels 4 + 5.
本文展示了在墨西哥塔卡纳火山进行的水生甲虫调查结果，调查采用每月采样制度，设置了五个海拔高度层级，旨在估计水生甲虫动物群的多样性和海拔分布模式。本文列出了这座山上的第一份水生甲虫物种清单，包括32个属9个科的40个物种，其中有4个物种首次在墨西哥被记录，6个物种首次在恰帕斯被记录。水生甲虫动物群的特征是：沼甲科有20个物种，龙虱科有11个物种，长角泥甲科有3个物种，而沼甲螨科、齿缘沼甲科、水龟虫科、豉甲科、长泥甲科和圆泥甲科各有1个物种。在采样的海拔梯度（670 - 1776米）上，物种组成并不均匀，沼甲属的 、 、 和 在所有海拔层级都有出现，而 、 和 出现在海拔1 - 3级（673 - 1214米）；龙虱科大多出现在海拔4级和5级（1619 - 1776米），长角泥甲科仅出现在海拔1 - 3级。特有性简约分析支持海拔1 - 3级和4 + 5级之间的总体划分。
