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Microrhagus pyrenaeus

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA ARTHROPODA INSECTA COLEOPTERA EUCNEMIDAE

Scientific Name: Microrhagus pyrenaeus
Species Authority: Bonvouloir, 1872

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2010
Date Assessed: 2009-06-05
Assessor(s): Horák, J., Büche, B., Méndez, M. & Alexander, K.
Reviewer(s): Alexander, K. & Nieto, A.
Justification:
European regional assessment: listed as Near Threatened since the species' Area of Occupancy is probably less than 500 km², and it is severely fragmented, but it is unknown whether the extent and quality of its habitat is declining, thus making the species close to a threatened category.

EU 27 regional assessment: listed as Near Threatened since the species' Area of Occupancy is probably less than 500 km², and it is severely fragmented, but it is unknown whether the extent and quality of its habitat is declining, thus making the species close to a threatened category.

Geographic Range [top]

Range Description: This species has a patchy distribution across Europe, and is absent from many areas. It is not present in Spain (Recalde Irurzun 2008). It is considered Extinct in Germany (B. Büche pers. comm. 2009). In France there are about 15 localities in central and south-western France. It was recently found in north-western Greece in 2008 (Mertlik et al. 2009) and in Bulgaria the only record is from 1998 (Elateridae 2009).




Countries:
Native:
Bulgaria; France (France (mainland)); Greece (Greece (mainland))
Regionally extinct:
Germany
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population:

There is little information available on the abundance of this species. It is considered one of the rarest beetle in Europe (Brustel and Van Meer 2008).



Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: This is an obligate saproxylic species. It has been found in dry branches of Carpinus in Germany (Muona 1993). In France it was found in humid and cold lowland forests, developing in white-rotten wood (branches) of Alnus and Quercus, lying on the ground (Brustel and Van Meer 2008).
Systems: Terrestrial

Use and Trade [top]

Use and Trade: Saproxylic Coleoptera tend to be popular with beetle collectors although trade is rarely an issue, the only exceptions being a few larger species of more dramatic form or colour.

Threats [top]

Major Threat(s):

The main overall threat is likely to be degradation or loss of habitat quality, involving structural changes in the tree populations arising from changing land use – affecting age structures and tree density. Exploitation from forestry is often a key immediate issue, but equally damaging can be long-term changes towards canopy closure and loss of ancient trees as a result of non- or minimum-intervention management systems which all too often exclude grazing by large herbivores. Fragmentation and increasing isolation of beetle populations are also key factors. These are the main threats to the species but their intensity is unknown.

Conservation Actions [top]

Conservation Actions:

There is no information regarding conservation actions for this species. It remains unknown if the species occurs in any protected area. In Germany it is included in the Red Data Book.


Citation: Horák, J., Büche, B., Méndez, M. & Alexander, K. 2010. Microrhagus pyrenaeus. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 01 August 2014.
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