Myophily in the critically endangered umbelliferous plant Ostericum palustre Besser (Apiaceae)

摘要: Globally, many plant species face human-induced habitat loss and an associated reduction in population size vitality. Their survival is often possible only when appropriate conservation measures are taken that address the biology ecology of these species, including their reproduction, most vulnerable stage life history organism. Unfortunately, little known about aspects listed species. For 3 years, we studied pollination critically endangered Ostericum palustre Besser (Apiaceae), one Bern Convention Annex II EU Flora–Fauna Directive. Flowers this taxon were visited by over 81 anthophilous insects derived from 5 taxonomic orders, indicating presence a generalised system. However, detailed analyses frequency insect visits, pollen loads behaviour on inflorescences suggest chiefly pollinated large Dipterans, predominantly Syrphid flies Muscoid flies, together responsible for 90 % total pollinations. Occasionally, wasps (Vespidae) may also be involved With respect to system O. palustre, our results indicate classic example myophily, generally, can regarded as functional specialist, but like other members Apiaceae, it typical “bet-hedger”. This strategy probably increase plant’s reproductive success range conditions, suggesting unlikely cause rarity