Invasive Species Application in Bioeconomy. Case Study Heracleum sosnowskyi Manden in Latvia

SOSNOVSKY HOGWEED (<i>HERACLEUM SOSNOWSKYI </i>MANDEN., APIACEAE) IN BASHKORTOSTAN

Heracleum sosnowskyi Manden in the Republic of Bashkortostan is distributed mainly in the northern and central Ural piedmont, a total of 20 localities are known. Upon naturalization, the species becomes the dominant and forms the communities of the association of Urtico dioicae - Heracleetum sosnowskyi . In 2016-2019 5 cenopopulations of H. sosnowskyi were investigated in the Krasnokamsky, Tatyshlinsky and Yanaulsky districts of Bashkortostan. The total density of the species in cenopopulations is high and amounts to 41-92 individuals/m, the effective one (density of generative individuals) is 1.9-3.4 individuals/m, while biomass can reach 2.3-4.6 kg/m. The proportion of the species in the community is high - 77.8-96.8%. According to most indicators of both vegetative and generative spheres, the cenopopulation located near the village of Tashkinovo leads, while the minimum values for all parameters are noted in the cenopopulation near the village of Razdolye in the Krasnokamsky district of the Republic of Bashkortostan. H. sosnowskyi poses a serious threat to the biodiversity of the ecosystems of the Republic of Bashkortostan.