High-accuracy sampling of saproxylic diversity indicators at regional scales with pheromones: The case of Elater ferrugineus (Coleoptera, Elateridae)
High-accuracy sampling of saproxylic diversity indicators at regional scales with pheromones: The case of Elater ferrugineus (Coleoptera, Elateridae)
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DOI：
10.1016/j.biocon.2014.01.007
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发表时间：
2014-03-01
影响因子：
5.9
通讯作者：
Milberg, Per
中科院分区：
文献类型：
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作者：
Andersson, Klas;Bergman, Karl-Olof;Milberg, Per
采用信息素诱捕法，在瑞典奥斯特哥特兰郡的47个地点取样了稀有甲虫Elater ferrugineus，以评估其作为富含稀有腐木甲虫种类的空心栎林的指示物种的价值。此外，还用费洛蒙诱饵对黑麦水蛭进行了取样。然后将这些数据与在同一地点通过陷阱和窗口诱捕器收集的物种调查数据进行比较。这两个物种与许多列入红色名录的腐羧酸甲虫共存，而E. ferrugineus是最稀有物种的一个更好的指标。一个地点的保护价值（以红色名录点数或红色名录物种数量来衡量）随着捕获的铁螯虾和沙爪虾标本数量的增加而增加。结果表明，信息素捕获法的采样精度在两种模式物种中是完全不同的。ferrugineus捕集器在7月份布放，6天后即可获得完全的捕集精度，而oeremita捕集器需要在7月初至8月中旬布放，每个站点设置一个捕集器才能获得完全的捕集精度。采用铁芽孢杆菌（E. ferrugineus）作为指示种，可以提高腐殖酸生物多样性采样、监测和热点识别的准确性，降低成本。(C) 2014 Elsevier Ltd.版权所有。
The rare beetle Elater ferrugineus was sampled at 47 sites in the county of Ostergotland, Sweden by means of pheromone-baited traps to assess its value as an indicator species for hollow oak stands rich in rare saproxylic beetle species. In addition, Osmoderma eremita was also sampled with pheromone baits. These data were then compared against species survey data collected at the same sites by pitfall and window traps. Both species co-occur with many Red Listed saproxylic beetles, with E. ferrugineus being a some-what better indicator for the rarest species. The conservation value of a site (measured as Red List points or number of Red Listed species) increased with the number of specimens of E. ferrugineus and O. eremita caught. Accuracy of sampling by means of pheromone trapping turned out to be radically different for the two model species. E. ferrugineus traps put out during July obtained full accuracy after only 6 days, whereas O. eremita traps needed to be out from early July to mid-August in order to obtain full accuracy with one trap per site. By using E. ferrugineus, or preferably both species, as indicator species, accuracy would increase and costs decrease for saproxylic biodiversity sampling, monitoring and identification of hotspots. (C) 2014 Elsevier Ltd. All rights reserved.