Changes in plant CSR strategies under new anthropogenic transformations

Donetsk State University, 283050 Donetsk, Russia

^* Corresponding author: andrey_safonov@mail.ru

Abstract

The indicator plant species (Diplotaxis muralis (L.) DC., Senecio vulgaris L., Tripleurospermum inodorum (L.) Sch. Bip., Echium vulgare L., Atriplex mircantha C.A.Mey., Ceratodon purpureus (Hedw.) Brid, Bryum caespiticium Hedw., and others) were analyzed on the territory of Donbass, which under conditions of geochemical contrast and physical transformation develop different strategies for their survival and population preservation. The methods of calculating CSR strategies by the global calculator for biomes (vegetative method) and approaches in assessing reproductive potential and generative success were used. It was found that indicator species significantly rearrange themselves to preserve their own life and the population as a whole when ecological conditions of growth change. It is proved that the way of taking into account atypical plant morphogenesis also has a different diagnostic vector from typical C-strategy to forced R- (35 %) or S-strategies (48 %) of survival at the level of model cenopopulations Cichorium intybus L., Capsella bursa-pastoris (L.) Medik., Berteroa incana (L.) DC., Tanacetum vulgare L., Reseda lutea L., Nigella arvensis L., Centaurea diffusa Lam.