Herbarium collections and publications as a basis for analysis of red-listed vascular plant records in the Leningrad region for the whole period of botanical observations
Herbarium collections are a valuable information source for a comprehensive analysis of regional plant biodiversity including dynamics of red-listed species. With the use of records in the Leningrad region (herbarium collections since the 18th century and scientific publications over the period from 2000 to 2014) a database of red-listed vascular plants was created. The database consists of 6745 unique records dating from 1779 to 2014. The changes in collection effort and distribution of floristic observations of the Leningrad region which have occurred over the last 200 years are demonstrated. The South-West districts of the region remain the most observed, and Eastern areas are still less studied during the whole period. The other biases caused by and limitations in using the records are discussed. Refs 27. Figs 3.
data base, red-listed vascular plant species, records dynamics, botanical research, herbarium specimen labels, Leningrad region
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