Arion vulgaris (Gastropoda: Pulmonata: Arionidae) --顿巴斯动物群中的一个外来新物种

Vladimir V. Martynov, Tatyana V. Nikulina
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引用次数: 0

摘要

本文描述了西欧软体动物 Arion vulgaris Moquin-Tandon, 1855(腹足纲:脉形目:Arionidae)在顿巴斯地区的首次解剖学确证记录。该物种是在顿涅茨克中心城市公园发现的。成体呈红褐色(从灰红褐色到亮橙色)或棕色,没有深色侧带或侧带痕迹。亚成体和成体的足底颜色从奶油色到深灰色不等,与体色无关,浅灰色均匀色(39.4%)和奶油色(35.2%)足底的个体占多数。产卵期为 9-10 月。卵、卵孵化的幼体、亚成体和成体冬眠。有些个体的寿命超过一年。在 5 年的观察期内,该群落的面积没有增加,为 0.325 公顷,这表明该物种在草原区的入侵潜力较低。在顿巴斯,A. vulgaris 的分布可能仅限于人口稠密地区的局部群落,但该物种有可能入侵该地区的峡谷和平原森林。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Arion vulgaris (Gastropoda: Pulmonata: Arionidae) – a new alien species in the fauna of Donbass
The first anatomically confirmed record of the Western European mollusk Arion vulgaris Moquin-Tandon, 1855 (Gastropoda: Pulmonata: Arionidae) in the territory of Donbass is described. The species was found in the central city park of Donetsk. Adults were rufous (from grayish rufous to bright orange) or brown in color without dark lateral bands or traces of them. The color of the soles of subadult and adults was from cream to dark gray, regardless of body color, individuals with light gray uniformly colored (39.4%) and cream (35.2%) soles dominated. Egg laying was recorded in September-October. Eggs, juveniles hatched from eggs, subadult and adult hibernate. Some individuals have a lifespan of more than one year. Over the five-year observation period, the area of the colony did not increase and is 0.325 ha, that indicates a low invasive potential of the species in the steppe zone. The distribution of A. vulgaris in the Donbass is likely to be limited to local colonies in populated areas, however, anthropochore invasion of the species into the ravine and fl oodplain forests of the region is possible.
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