By Victor Fet, Alexi Popov
Dr. Victor Fet is a Professor of Biology at Marshall collage, West Virginia, united states. He used to be a co-editor of Biogeography and Ecology of Turkmenistan (Kluwer educational Publishers, 1994) and authored dozens of analysis courses on animal biogeography, systematics and evolution. he's additionally one of many world’s prime specialists on scorpions and one of many authors of the Catalog of Scorpions of the area (New York, 2000).
Dr. Alexi Popov is the Director of the nationwide Museum of usual heritage, Sofia, Bulgaria. He authored and co-authored ninety four examine guides on insect faunistics, taxonomy, ecology, and conservation. He served as a Secretary and/or the Member of the Editorial Board of Historia naturalis bulgarica, Acta entomologica bulgarica, and magazine of Neuropterology. within the venture "Fauna Europaea", Dr. Popov leads the crew of 30 entomologists engaged on the bugs of Bulgaria.
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Dr. Victor Fet is a Professor of Biology at Marshall college, West Virginia, united states. He used to be a co-editor of Biogeography and Ecology of Turkmenistan (Kluwer educational Publishers, 1994) and authored dozens of analysis guides on animal biogeography, systematics and evolution. he's additionally one of many world’s top specialists on scorpions and one of many authors of the Catalog of Scorpions of the realm (New York, 2000).
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Extra info for Biogeography and Ecology of Bulgaria
The fifth cluster embraces the NRs from North Bulgaria (NRs 1–4). 65) the dendrogram indicates that the mammalian fauna of Bulgaria forms two well defined territorial units: mountains (cluster 3) and lowlands (clusters 4 and 5). In order to avoid the discrepancies associated with agglomerative clustering techniques, the above data were clustered by TWINSPAN, a divisive classification technique. This analysis revealed similar relationships (Fig. 5). The NRs were classified into six end-groups according to their mammalian fauna.
The migratory component of the last complex is related to the Holocene paleoenvironmental changes. e. they comprise an orthoselective component as well. As a whole, the mammalian fauna of Bulgaria is composed predominantly of species belonging to the Nemoral complex (38 species). Species of the Mediterranean complex (26 species) occupy a secondary position. The Boreal complex is relatively well represented (14 species), while the representatives of the Steppe complex form only a very small portion of the fauna (eight species).
The second group comprised the characteristics of local vegetation (v7) and humidity (v8). The local vegetation component of a habitat was described in terms of three distinct types: (1) open, grassland, cultivated fields; (2) shrubs, forest edges; TERRESTRIAL MAMMALS IN BULGARIA 13 (3) forests. The local humidity was coded according to the following categories: (1) dry, far above local erosion basis; (2) moderately dry (depending on a season); (3) moist, near water basins. In our figures, the individual LHAs are denoted by the letter of the sampling area (Fig.