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Effects of abiotic factors on co-occurring Carabus (Coleoptera: Carabidae) species
Biologia ( IF 1.4 ) Pub Date : 2020-09-15 , DOI: 10.2478/s11756-020-00593-w
Dávid Fülöp , Sándor Bérces , Péter Szabó , Ferenc Samu

The members of the genus Carabus are among the most intensively studied beetle taxa, but many aspects of their autecology are still unexplored. We aimed to study the relationship between measured abiotic parameters and the spatial and temporal distribution of signature carabid species. Carabus assemblages were sampled by pitfalls at six sites belonging to two nearby locations, both forest habitats: in valley and in hill-top position. The sites showed variation in microclimatic and soil characteristics, to which the seven species caught showed specific spatial associations. Carabus scheidleri and C. coriaceus were ubiquitists, occurring at all sites. The habitat specialist C. violaceus germari indicated valley sites with high humidity, lower temperature, limy soil and higher pH, whereas the other specialists, C. nemoralis and C. convexus were strongly associated with the dry, warm, more acidic hill habitat. Remaining species were associated with specific sites and environmental features. The species also exhibited specific phenological patterns corresponding with their habitat preference. Hill habitat species exhibited peak activity density during the hottest summer period, whereas most other species had an activity depression during that period. The results suggest that although Carabus activity density patterns are species specific, they are largely affected by temperature both spatially and temporally.



中文翻译:

非生物因子对共生瓶形龙(Coleoptera:Carabidae)种类的影响

Carabus属的成员是研究最深入的甲虫类群之一,但其自律学的许多方面仍未得到探索。我们旨在研究测得的非生物参数与特征性锁链物种的时空分布之间的关系。通过在两个附近地点的六个地点的凹坑对Carabus组合进行采样,这两个地点都是森林生境:在山谷和山顶位置。这些地点表现出微气候和土壤特征的变化,捕获的七个物种与这些地点表现出特定的空间关联。Carabus scheidleriC. coriaceus是遍在植物,遍及所有地点。栖息地专家C. violaceus指出山谷地区湿度高,温度低,土壤肥沃,pH值高,而其他专家C. nemoralisC.凸角与干燥,温暖,酸性更高的山地栖息地密切相关。其余物种与特定地点和环境特征有关。该物种还表现出与其栖息地偏好相对应的特定物候模式。丘陵生境物种在最热的夏季表现出最高的活动密度,而大多数其他物种在此期间的活动降低。结果表明,尽管Carabus的活动密度模式是特定于物种的,但它们在空间和时间上都受到温度的很大影响。

更新日期:2020-09-15
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