The Natura 2000 network is one of the most important tools for nature conservation in the EU. Therefore, knowledge of the ecology of the species listed on the Habitats Directive annexes is of particular relevance. One of these species is the butterfly Euphydryas aurinia. Much is already known about the ecology of this species at the European level, but information on Romania is scarce. Therefore, in a study area northwest of Cluj, the species was intensively studied in a mark-release-recapture study over its entire flight period. The investigated population harboured many individuals and had a high density. The dispersal behaviour of the individuals was somewhat more pronounced than in Mediterranean and partly also high alpine populations, but roughly comparable to other populations of the nominotypic subspecies. Overall, the ecological differences to Central and Western European populations were not very pronounced, and many of the conservation-relevant statements on this species in Central Europe should also be largely valid in Romania.

Natura 2000 网络是欧盟自然保护最重要的工具之一。因此，了解《栖息地指令》附件中所列物种的生态学知识具有特别重要的意义。这些物种之一是Euphyyas aurinia蝴蝶。在欧洲，人们对该物种的生态了解很多，但有关罗马尼亚的信息却很少。因此，在克卢日西北部的一个研究区域，对该物种的整个飞行期间进行了标记-释放-重新捕获研究。调查群体个体数量多、密度高。这些个体的分散行为比地中海种群和部分高山种群更为明显，但与名义型亚种的其他种群大致相当。总体而言，中欧和西欧种群的生态差异不是很明显，许多关于中欧该物种的保护相关声明在罗马尼亚也应该基本上有效。