Kwak Mackenzie L, Heath Allen C G, Palma Ricardo L
Evolutionary Biology Laboratory, Department of Biological Science, National University of Singapore, 16 Science Drive 4, Singapore, 117558, Singapore.
Animal Science Group, AgResearch Ltd, Hopkirk Research Institute, Massey University, Private Bag 11008, Palmerston North, 4442, New Zealand.
Acta Parasitol. 2019 Dec;64(4):903-910. doi: 10.2478/s11686-019-00119-8. Epub 2019 Nov 14.
The Manx shearwater flea Ceratophyllus (Emmareus) fionnus Usher, 1968 is a host-specific parasitic insect apparently restricted to the Isle of Rùm, off the west coast of Scotland. Although C. (E.) fionnus is one of only a small number of insect species endemic to the British Isles, its conservation status has never been evaluated. To enable effective management, the conservation status of the species was assessed.
The conservation status of C. (E.) fionnus was evaluated using host and distribution records in conjunction with two assessment rubrics; the IUCN Red List Categories and Criteria: Version 3.1, and a flea-specific assessment rubric developed previously.
Ceratophyllus (Emmareus) fionnus was found to be threatened with extinction due to its hyperendemicity on the Isle of Rùm and was classified as vulnerable.
Based on the findings of the assessment, immediate conservation action to protect C. (E.) fionnus is encouraged and a recovery plan is outlined. This includes surveys and studies of the bionomics of the species in conjunction with in-situ management of the known population. The creation of insurance populations through conservation translocations is also encouraged.
马恩岛海鸥蚤Ceratophyllus (Emmareus) fionnus Usher，1968年，是一种宿主特异性寄生昆虫，显然仅分布于苏格兰西海岸外的拉姆岛。尽管C. (E.) fionnus是不列颠群岛特有的少数昆虫物种之一，但其保护状况从未得到评估。为了进行有效管理，对该物种的保护状况进行了评估。
利用宿主和分布记录，结合两个评估标准对C. (E.) fionnus的保护状况进行评估；这两个标准分别是《世界自然保护联盟濒危物种红色名录类别和标准：第3.1版》以及先前制定的蚤类特异性评估标准。
由于Ceratophyllus (Emmareus) fionnus在拉姆岛的高度地方性，发现其面临灭绝威胁，被列为易危物种。
基于评估结果，鼓励立即采取保护行动以保护C. (E.) fionnus，并概述了一项恢复计划。这包括对该物种生态习性的调查和研究，以及对已知种群的就地管理。还鼓励通过保护转移创建保险种群。
