The ground beetle fauna (Coleoptera,Carabidae) of Southeastern Altai |
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Authors: | R Yu Dudko A V Matalin D N Fedorenko |
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Institution: | 1.Institute of Animal Systematics and Ecology, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;2.Moscow Pedagogical State University,Moscow,Russia;3.Institute of Ecology and Evolution,Russian Academy of Sciences,Moscow,Russia |
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Abstract: | Long-term studies of the ground beetle fauna of Southeastern Altai (SEA) revealed 33 genera and 185 species; 3 and 15 species
are reported for the first time from Russia and SEA, respectively. The following genera are the most diverse: Bembidion (47 species), Amara and Harpalus (21 each), Pterostichus (14), and Nebria (13). The subarid (35%) and boreal (32%) species prevail in the arealogical spectrum, while the mountain endemics comprise
13% of the fauna. The carabid fauna of SEA is heterogeneous in composition and differs significantly from that of the Western
and Central Altai. The boreal mountain component mostly comprises tundra species with circum-boreal or circum-arctic ranges,
while the subarid component (typical Mongolian together with Ancient Mediterranean species) forms more than one-half of the
species diversity in the mountain basins. The species diversity increases from the nival mountain belt (15 species, predominantly
Altai-Sayan endemics) to moss-lichen tundras (40, mostly boreal, species). The variety of habitats and constant hydrothermal
regimes in the intrazonal valley communities determine high taxonomic diversity of Carabidae, including both tundra or meadow-steppe
species typical of the region and some forest ones. Under the condition of moisture deficiency, many steppe species also concentrate
in river floodplains. |
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