Museum and Institute of Zoology, Polish Academy of Sciences, Wilcza 64, Warsaw 00-679, Poland.
Zootaxa. 2020 Dec 30;4899(1):zootaxa.4899.1.18. doi: 10.11646/zootaxa.4899.1.18.
Expanding range is an inherent feature of any species and may be caused by climate change, destruction or other change of habitat, or lack of natural enemies. In a new habitat the species may be neutral, or as predator it can displace related species through competition. A strong expansion to northern Europe was observed in the thermophilous spider species Argiope bruennichi. The species doubled its range in Poland during the 1990s and its impact on native species was not investigated so far. In this article, the results of studies about A. bruennichi number (density) and its contribution in orb-weaver spider communities are analysed. We also try to determine the impact of newly occurring species on the local araneofauna.
物种扩张是所有物种的固有特征，可能是由气候变化、栖息地的破坏或其他变化，或缺乏天敌引起的。在一个新的栖息地，物种可能是中性的，或者作为捕食者，它可以通过竞争取代相关物种。在喜热蜘蛛物种 Argiope bruennichi 中，观察到向北欧的强烈扩张。在 20 世纪 90 年代，该物种在波兰的分布范围扩大了一倍，但迄今为止，其对本地物种的影响尚未得到调查。在本文中，分析了对 A. bruennichi 数量（密度）及其在圆蛛蜘蛛群落中贡献的研究结果。我们还试图确定新出现的物种对当地蛛形动物区系的影响。
