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The genus Cyclocephala Dejean (Coleoptera: Scarabaeidae: Dynastinae) in Brazil: diversity and spatio-temporal distribution
Journal of Insect Conservation ( IF 1.9 ) Pub Date : 2020-03-18 , DOI: 10.1007/s10841-020-00230-6 Jacqueline A. Gonçalves , Paschoal C. Grossi , Pedro H. B. Togni , Charles M. Oliveira , Marina R. Frizzas
Journal of Insect Conservation ( IF 1.9 ) Pub Date : 2020-03-18 , DOI: 10.1007/s10841-020-00230-6 Jacqueline A. Gonçalves , Paschoal C. Grossi , Pedro H. B. Togni , Charles M. Oliveira , Marina R. Frizzas
The genus Cyclocephala Dejean (Coleoptera, Scarabaeidae, Dynastinae) contains approximately 350 species and is found mainly in the Neotropical region. These species function in the cycling of organic matter, act as bioindicators of environmental quality, and some species are considered agricultural pests. This study attempted to analyze the spatio-temporal distribution and diversity of Cyclocephala species across five Brazilian biomes, and to understand the factors that influence their distribution. Climatic variables (temperature, humidity, and precipitation), spatial variables (latitude, longitude, and elevation), and the landscape composition around the sampling areas were evaluated. Insects were collected using light traps in areas of native vegetation in the Amazon, Cerrado, Atlantic Rainforest, Pampa, and Caatinga biomes. Sampling was carried out monthly from June 2015 to May 2016. A total of 5695 individuals across 38 species of Cyclocephala were collected, including five species recorded for the first time in Brazil. The Amazon biome contains the greatest species richness and abundance of Cyclocephala species among all studied biomes, with 73.68% of collected species being endemic to this biome. The richness and abundance of species in this genus were influenced by climatic factors, such as temperature (and its interactions with precipitation and relative humidity) and the interaction between precipitation and relative humidity, and by spatial factors, such as longitude, but not by the percentage of vegetation remaining in the landscape. Cyclocephala species showed seasonal abundances and aggregated distribution, which varied according to the climatic characteristics of each biome.
中文翻译:
巴西 Cyclocephala Dejean 属(鞘翅目:金龟科:Dynastinae):多样性和时空分布
Cyclocephala Dejean 属(鞘翅目、金龟子科、Dynastinae)包含大约 350 种,主要分布在新热带地区。这些物种在有机物质循环中发挥作用,作为环境质量的生物指标,有些物种被认为是农业害虫。本研究试图分析五个巴西生物群落中 Cyclocephala 物种的时空分布和多样性,并了解影响其分布的因素。评估了气候变量(温度、湿度和降水)、空间变量(纬度、经度和海拔)以及采样区域周围的景观组成。昆虫是在亚马逊、塞拉多、大西洋雨林、潘帕和卡廷加生物群落的原生植被区域使用光阱收集的。2015 年 6 月至 2016 年 5 月每月进行一次采样。共采集了 38 种环头目动物 5695 只个体,其中 5 种是巴西首次记录的物种。在所有研究的生物群落中,亚马逊生物群落中的 Cyclocephala 物种的物种丰富度和丰度最高,73.68% 的收集物种是该生物群落的特有物种。该属物种的丰富度和丰度受气候因素的影响,如温度(及其与降水和相对湿度的相互作用)和降水与相对湿度的相互作用,以及空间因素,如经度,但不受气候因素的影响。景观中剩余植被的百分比。Cyclocephala 物种表现出季节性丰度和聚集分布,
更新日期:2020-03-18
中文翻译:
巴西 Cyclocephala Dejean 属(鞘翅目:金龟科:Dynastinae):多样性和时空分布
Cyclocephala Dejean 属(鞘翅目、金龟子科、Dynastinae)包含大约 350 种,主要分布在新热带地区。这些物种在有机物质循环中发挥作用,作为环境质量的生物指标,有些物种被认为是农业害虫。本研究试图分析五个巴西生物群落中 Cyclocephala 物种的时空分布和多样性,并了解影响其分布的因素。评估了气候变量(温度、湿度和降水)、空间变量(纬度、经度和海拔)以及采样区域周围的景观组成。昆虫是在亚马逊、塞拉多、大西洋雨林、潘帕和卡廷加生物群落的原生植被区域使用光阱收集的。2015 年 6 月至 2016 年 5 月每月进行一次采样。共采集了 38 种环头目动物 5695 只个体,其中 5 种是巴西首次记录的物种。在所有研究的生物群落中,亚马逊生物群落中的 Cyclocephala 物种的物种丰富度和丰度最高,73.68% 的收集物种是该生物群落的特有物种。该属物种的丰富度和丰度受气候因素的影响,如温度(及其与降水和相对湿度的相互作用)和降水与相对湿度的相互作用,以及空间因素,如经度,但不受气候因素的影响。景观中剩余植被的百分比。Cyclocephala 物种表现出季节性丰度和聚集分布,