Some repeated inventory results of the Putorana plateau vascular flora

Igor N Pospelov,Elena B Pospelova,V.V Chepinoga,K.P Ma

doi:10.1051/bioconf/20213800103

Igor N Pospelov, Elena B Pospelova + Show 2 more

Open Access

https://doi.org/10.1051/bioconf/20213800103

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Abstract

Resulting generalization of herbarium and literature data and our own observations, a list of vascular plants growing on Putorana plateau territory was compiled, including 736 species (without adventive). The history of the plateau flora study since the 70s of the last century is described. The analysis of geographical and ecological-coenotic structure of the flora is carried out, according to the results of which it can be attributed to the hypoarctic type. The cluster analysis of the flora let to distinguish 3 clusters within the territory – the eastern one, with the flora of the moderately hypoarctic subtype, the central one and the southwestern one, the flora of which belongs to the hypoarcto-boreal subtype. Considerations concerning the history of the formation of the plateau flora are presented. Plant invasion on the Putorana plateau occurred both from the north, where Arctic species penetrated into the highlands, and from the south and west – these are boreal species mainly of the Eurasian and Asian fractions. A certain role in the formation of the flora is played by historical factors, especially the impact of the occurrence and melting of glaciations, which differ in different parts of the plateau.

Highlights

The plateau flora was completely unexplored until the 70s of the last century
During 5 field seasons, we identified 60 species that were not previously listed for the Putorana plateau, including Botrychium multifidum, Carex spaniocarpa, Rumex aureostygmaticus, Oxytropis czekanowskii, O. tichomirovii, Taraxacum byrrangicum, which were included in Krasnoyarsk Territory Red Book, as well as the locations of Ranunculus pallasii, Thalictrum foetidum, Potentilla pulviniformis, P. subvahliana etc., which are the most remote from the main area. [7, 8]
The uniform distribution of geoelements may indicate that the plantsettlement of the Putorana plateau occurred both from the north, where arctic species penetrated into the highlands, and from the south and west – these are boreal species of the mainly eurasian fraction or boreal Asian

Summary

Introduction

The plateau flora was completely unexplored until the 70s of the last century. The first expedition aimed at studying flora of the plateau was conducted in 1968-72 by botanists of Plant Physiology and Biochemistry Siberian Institute. The survey of plateau vascular flora was carried out by the method of specific floras and grid floral mapping The results of these studies were published in the monograph "Flora of Putorana" [1]. The resulting list comprised 569 species and subspecies of vascular plants, including some ruderal species from the vicinity of Norilsk. The Haya-Kuel site, which is characterized by specific calcifilic flora, is already located on the territory of the Kotui plateau, which is composed of limestone. In this area alone, the authors collected 28 calcifilous species distributed east of Putorana, mainly in the mountains of the AnabarKotui mountain massif. Some insufficiently complete identification of the flora was associated with these reasons

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