ANALYSIS OF SPECTRA OF LATITUDINAL GEOGRAPHICAL STRUCTURE OF LOCAL AND REGIONAL FLORAS OF THE ASIAN ARCTIC
T.M. Koroleva1, A.A. Zverev2, V.V. Petrovsky1, I.N. Pospelov3,4, E.B. Pospelova4,5, O.V. Rebristaya1, O.V. Khitun1, S.V. Chinenko1
1Komarov Botanical Institute RAS, 197376, Saint-Petersburg, Popova str., 2
korolevatm@gmail.com
2Tomsk State University
ibiss@rambler.ru
3A.N. Severtsov Institute of Ecology and Evolution RAS
taimyr@orc.ru
4Zapovedniki Taimyra
parnassia@mail.ru
5Moscow State University
Keywords: локальные и региональные флоры, широтные группы, широтные фракции, спектры широтной структуры флор, зональные и подзональные границы, Азиатская Арктика, local and regional flora, latitudinal geographical groups and fractions, spectra of latitudinal structure of flora, zonal and subzonal borders, Asian Arctic
Abstract
At the base of the Russian Arctic biodiversity monitoring network comparative study of latitudinal structure spectra of 137 local and 6 regional floras from 3 sectors of Asian Arctic was performed. Levels of similarity latitudinal struc- ture spectra by groups and by fractions were calculated, territories with similar spectra were shown at the schematic maps and compared with existing subzonal division of tundra zone. 3 latitudinal types of local floras (arctic, boreal, hypoarctic) and within the arctic type 3 subtypes (high arctic, proper arctic, hypoarctic) were distinguished. Com- parison of latitudinal structure of regional floras, calculated in 2 different ways: ratios obtained from total lists of species for each subprovince and ratios obtained after normalizing the lists by frequencies of species in local floras in given subprovince. The latter is shown to be more correct. Most similar to each other are regional floras with similar sets of subzonal units, though they may be located in different longitudinal sectors.
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