PDF(Pubmed)
Abstract：
Due to ongoing changes and a decline in biodiversity, science today should rely on long-term species-based ecological studies. We have conducted a long-term ecological dynamics study on the water beetle family Scirtidae, which, although it is very abundant in benthic communities, is still poorly studied. The main objective of this study was to investigate the population aspects (composition, diversity, sex ratio) and ecological aspects (emergence patterns, seasonal dynamics and preferences for environmental factors) of the family Scirtidae over 15 years in Plitvice Lakes NP, Croatia. The study was conducted at three sites and in five different substrate types. A total of three taxa with different distributions were recorded in the study area: Hydrocyphon novaki and H. deflexicollis on the tufa barriers and the Elodes sp. in the spring area. The sex ratio was in favour of males in spring and early summer, while it shifted in favour of females towards the end of autumn. The abundance and emergence of the family were primarily determined by the environmental parameters which showed the greatest fluctuations over a period of 15 years: water temperature, water discharge and oxygen saturation. Our results clearly show that Scirtidae can be used as indicators of stream zonation and habitat quality. Based on the methodology and the results of this study, we conclude that Scirtidae should be used in future monitoring and protection measures in karst freshwater habitats in southeastern Europe.
摘要：
由于不断的变化和生物多样性的下降，今天的科学应该依靠长期的基于物种的生态研究。我们对水甲虫科进行了长期的生态动力学研究，which,尽管它在底栖群落中非常丰富，仍然缺乏研究。这项研究的主要目的是调查人口方面(组成，多样性,性别比例)和生态方面(出现模式，PlitviceLakesNP15年以上的Scirtidae家族的季节性动态和对环境因素的偏好，克罗地亚。该研究在三个地点和五种不同的底物类型中进行。在研究区域中总共记录了三个具有不同分布的分类单元：在凝灰岩屏障和Elodessp。在春季地区。在春季和初夏，性别比对男性有利，而在秋末，它转向了对女性的青睐。家庭的丰富和出现主要取决于环境参数，这些参数在15年内表现出最大的波动：水温，水排放和氧饱和度。我们的结果清楚地表明，Scirtidae可以用作河流分区和栖息地质量的指标。根据本研究的方法和结果，我们得出结论，应在东南欧喀斯特淡水栖息地的未来监测和保护措施中使用Scirtidae。
