Forest dieback in a protected area triggers the return of the primeval forest specialist Peltis grossa (Coleoptera, Trogossitidae)
Forest dieback in a protected area triggers the return of the primeval forest specialist Peltis grossa (Coleoptera, Trogossitidae)
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保护区内的森林枯死引发了原始森林专家 Peltisgrosa（鞘翅目，Trogossitidae）的回归
DOI：
10.1111/csp2.612
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发表时间：
2022
影响因子：
3.1
通讯作者：
Jörg Müller
中科院分区：
文献类型：
--
作者：
A. Busse;L. Čížek;Pavla Čížková;L. Drag;Vladimír Dvorák;J. Foit;M. Heurich;Pavel Hubený;J. Kašák;Florian Kittler;Petr Kozel;Ludwig Lettenmaier;Ludwig Nigl;Jiří Procházka;J. Rothacher;Cornelia Straubinger;S. Thorn;Jörg Müller
预留森林是一种常用的保护策略，但大规模的干扰经常引起对其在原生产林中生物多样性保护效用的讨论。在这项研究中，我们重建了原始森林专家Peltis grossa （Linnaeus, 1758）在消失一个多世纪后重返两个国家公园。为了阐明历史进程以及潜在避难所和物种大小的作用，我们将大规模公民科学方法收集的甲虫当前分布与历史数据和两种密切相关的较小物种的当前分布进行了比较。我们量化了枯木偏好，并调查了良性忽视与回收采伐管理措施对毛松丰度的影响。我们的研究结果支持了这样一种观点，即毛茛在南波西米亚森林中幸存下来，这使得它能够重新殖民景观。然而，种群的增加依赖于保护区内树皮甲虫提供的大量枯木。在研究区域北部的大片地区，大约20年前有大量的枯木，森林演替速度超过了毛松的殖民化速度。目前该物种存在的概率随着距离假定保护区40公里的距离从70%下降到5%。在目前的毛豆核心分布区，回收采伐使其丰度降低了20倍。这些结果提供了三个重要的经验教训，说明自然干扰作为森林保护区生物多样性恢复工具的潜力：首先，干扰带来的大量枯木供应可以触发当地灭绝的原始森林专家的回归。其次，该物种必须在一个临界距离内生存（对于粗桫椤< 10-40 km）。第三，救助性采伐通过减少栖息地数量，显著降低了森林专科动物的种群密度。
Forest set‐aside is a commonly employed conservation strategy, but large‐scale disturbances regularly evoke discussions on its utility for biodiversity conservation in former production forests. In this study, we reconstructed the return of a primeval forest specialist, the beetle Peltis grossa (Linnaeus, 1758) of the family Trogossitidae, to two national parks after more than a century of absence. To illuminate historical processes and the role of potential refuges and species' size, we compared the beetle's current distribution collected in a large‐scale citizen science approach, with historical data and the current distribution of two closely related, smaller species. We quantified deadwood preferences and investigated the effect of benign neglect versus salvage‐logging management practices on P. grossa abundances. Our findings support the view that P. grossa survived in the southern Bohemian Forest, which enabled its recolonization of the landscapes. However, a build‐up of the population was dependent upon a massive supply of deadwood by bark beetles within the refuge area. In a large area in the north of the study region that >20 years ago contained ample amounts of deadwood, forest succession outpaced colonization by P. grossa. The current probability of the species' presence decreased with distance to the presumed refuge area from 70% to 5% at 40 km. In the present core distribution area of P. grossa, salvage logging reduced its abundance by the factor 20. These results provide three important lessons on the potential of natural disturbances as a biodiversity restoration tool in forest set‐asides: First, large supply of deadwood by disturbance can trigger the return of locally extinct primeval forest specialists. Second, the species must survive within a critical distance (for P. grossa < 10–40 km). Third, salvage logging significantly reduces the population densities of forest specialists by reducing habitat amount.
影响因子：
9.5
作者：
Hlasny, Tomas;Konig, Louis;Seidl, Rupert
通讯作者：
Seidl, Rupert