Analysis of the ways of formation of the entomofaunistic complexes in the Northwest Caucasus based on the material on coleopterous insects (Coleoptera) |
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Authors: | " target="_blank">A S Zamotajlov " target="_blank">V N Orlov " target="_blank">M V Nabozhenko " target="_blank">N V Okhrimenko " target="_blank">E A Khatschikov " target="_blank">M I Shapovalov " target="_blank">I V Shokhin |
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Institution: | 1.Kuban State Agrarian University,Krasnodar,Russia;2.Krasnodar Research Institute of Agriculture,Krasnodar,Russia;3.Azov Branch of Murmansk Marine Biological Institute, Kola Scientific Centre,Russian Academy of Sciences,Rostov-on-Don,Russia;4.Krasnodar Branch of Russian Centre of Forest Protection,Krasnodar,Russia;5.Rostov Branch of All-Russia Centre of Plant Quarantine,Rostov-on-Don,Russia;6.Adygei State University,Maikop,Republic of Adygea, Russia;7.Institute of Arid Zones, Southern Scientific Centre,Russian Academy of Sciences,Rostov-on-Don,Russia |
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Abstract: | By the example of 14 coleopterous insect families, namely Gyrinidae, Haliplidae, Noteridae, Dytiscidae, Carabidae, Hydrophilidae,
Staphylinidae, Lucanidae, Trogidae, Scarabaeidae, Elateridae, Alleculidae, Tenebrionidae, and Chrysomelidae, regularities
and the basic sources of formation of the most typical landscapecoenotic complexes in the Northwest Caucasus are discussed.
The total number of the species included in the material analyzed amounts to about 2000. The maximal species diversity (854
species) is registered for the deciduous forests and dry open woodlands. In total, 11 types of the chorological complexes
and distributional ranges (chorotypes) of the regional beetle fauna are distinguished. Significant concordance of the chorologic
patterns in some groups of beetles is established. In this respect, Carabidae and Tenebrionoidea seem to be the closest on
the one hand, and also Elateridae and Scarabaeoidea, on the other. The zonal fauna of the Northwest Caucasus is formed basically
by species possessing Boreal ranges, while the azonal fauna, predominantly by species with the Ancient Mediterranean ranges.
Allocation of coleopterous insects within regional zoochorones is investigated as well. It is established, that in different
zoochorones of the upland part of the region the majority of coenofaunas show significant similarity of the arealogical pattern,
even though being composed frequently by different taxa. The fauna of agrarian landscapes of the Northwest Caucasus is also
examined. It includes 382 beetle species. The overwhelming majority of them belongs to the ground beetles (229 species), leaf
beetles (78), and Scarabaeoidea (30). This fauna reveals the maximal similarity with the coenofaunas of the lowland steppe
and meadows. It is established that the major role in formation of the agrocenoses beetle fauna belongs to the natural plain
and upland steppe and treeless fields, foothill broad-leaf forests and open woodlands, and also to the floodplain and lowland
forests. The bulk of the species occurring in the agrocenoses possesses wide ranges, predominantly of the Boreal type. Some
peculiarities of the regional endemism are discussed as well. |
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