|Scope: Global & Europe|
|Scientific Name:||Trichius orientalis Reitter, 1894|
|Red List Category & Criteria:||Near Threatened ver 3.1|
|Assessor(s):||Tykarski, P., Putchkov, A. & Mannerkoski, I.|
|Reviewer(s):||Alexander, K. & Nieto, A.|
European regional assessment: listed as Near Threatened because its Extent of Occurrence is less than 5,000 km², its quality and extent of habitat is suspected to be in continuing decline, but the level of fragmentation and the exact number of locations are unknown. This species occurs in the Crimean Peninsula where approximately 10% of it is protected by the Crimean Mountain Reservation. More information about the level of fragmentation of the different populations is needed.
EU 27 regional assessment: listed as Data Deficient. The presence of this species in Bulgaria remains uncertain, and therefore there is no information on the exact distribution, population, habitat requirements and threats to this species. If the species was not present in Bulgaria, this species would be assessed as Not Evaluated, as the species does not occur in any other EU Member State.
|Range Description:||This species is only found in Crimea (Ukraine) and is thought likely to be severely fragmented because its required habitat is fragmented over most of its range. It is suspected to occur also in Bulgaria but there is no information about its distribution there (A. Putchkov pers. comm. 2009). It is also found in Minor Asia.|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||This species is relatively rare in the mountain forests of Crimea but its trend is unknown (A. Putchkov pers. comm. 2009).|
|Current Population Trend:||Unknown|
|Habitat and Ecology:||This is an obligate saproxylic species that occurs in oak Quercus and beech Fagus forests, the larvae developing in the decaying wood of these tree species.|
The larvae hibernate. Adults are seen in glades and feeding at various flowers (mostly Compositae) the following spring and summer. The adult beetle is active in June - July. There is one generation per year.
|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.|
The main overall threat is 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 a key immediate issue, but equally damaging can be long-term changes towards canopy closure as a result of non- or minimum-intervention management systems which all too often exclude grazing by large herbivores which has impacts on the species composition of natural regeneration. Fragmentation and increasing isolation of beetle populations are also key factors. This species is specifically threatened by habitat loss caused by felling of forests. While this is not a threat in the protected mountain reserves of Crimea, most of the species' range is outside of protected areas (A. Putchkov pers. comm. 2009).
|Conservation Actions:||The species occurs in the protected Crimean mountain's reservation (A. Putchkov pers. comm. 2009).|
|Citation:||Tykarski, P., Putchkov, A. & Mannerkoski, I. 2010. Trichius orientalis. The IUCN Red List of Threatened Species 2010: e.T157742A5136678.Downloaded on 16 October 2018.|
|Feedback:||If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided|