Mortality of Amphibians on the Roads of Lviv Region (Ukraine): Trend for the Last Decade

O. Reshetylo, V. Stakh, A.-A. Osiyeva, I. Dykyy, B. Andriyishyn, M. Panchuk, I. Tsaryk
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引用次数: 3

Abstract

Abstract 69 road sections with amphibian mortality known from 2006 in Lviv Region (Western Ukraine) were repeatedly surveyed in 2017. 2078 dead individuals of nine amphibian species were detected and identified on the road surface (Triturus cristatus, Bombina bombina, Pelobates fuscus, Bufo bufo, Hyla orientalis, Rana temporaria, Rana arvalis, Pelophylax ridibundus and Pelophylax esculentus). The most numerous victims appeared to be B. bufo (72.8 %) and R. temporaria (22.6 %) which is almost the same as in 2006 (90.5 % together). However, the qualitative and quantitative composition has decreased in a decade (compare 3555 individuals of 13 amphibian species in 2006). As we suppose, the main reasons for amphibian population decline in the region are contamination, degradation and disappearance of the breeding ponds as well as the increased traffic intensity. According to the estimation of our research four B. bufo populations are under the excessive influence of roads and transportation, and need to be protected. One of these road sections was fenced up by temporary amphibian fences during the breeding migration (April 2018). Amphibian mortality on the fenced road section dropped down instantly: over thousand individuals of B. bufo and R. temporaria were caught alive into the bucket-traps and safely moved across the road.
利沃夫地区(乌克兰)道路上两栖动物的死亡率:过去十年的趋势
摘要2017年对乌克兰西部利沃夫地区2006年以来已知的69条两栖动物死亡率路段进行了重复调查。在路面上共检出9种两栖动物死亡个体2078只,分别为:长三角三角海獭、长三角海獭、褐海獭、Bufo Bufo、orientalis、临时海獭、arvalis海獭、Pelophylax ridibundus和Pelophylax esculentus。最多的受害者似乎是bufo(72.8%)和临时r.a aria(22.6%),这与2006年(90.5%)几乎相同。然而,近十年来,定性和定量组成有所下降(2006年13种两栖动物3555个个体)。我们认为,该地区两栖动物种群数量下降的主要原因是养殖池塘的污染、退化和消失以及交通强度的增加。根据我们的研究估计,有4个bufo种群受到道路和交通的过度影响,需要加以保护。在繁殖迁徙期间(2018年4月),其中一段道路被临时的两栖动物围栏围起来。在有围栏的路段上,两栖动物的死亡率立即下降:超过1000只bufo和r.a temporaria被活捉到水桶陷阱里,并安全转移到马路对面。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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