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Euphrasia’s hide-and-seek: periodicity of occurrence in some high-mountain species of Euphrasia (Orobanchaceae) and its consequences for botanical research on protected areas

    Ewa Posz

Eco.mont Vol. 9 Nr. 2, pp. 16-22, 2017/06/29

Journal on Protected Mountain Areas Research and Management

doi: 10.1553/eco.mont-9-2s16

doi: 10.1553/eco.mont-9-2s16


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doi:10.1553/eco.mont-9-2s16



doi:10.1553/eco.mont-9-2s16

Abstract

The paper presents the results of long-term observations made on selected populations of two high-mountain Euphrasia species. The monitoring was conducted during 2002–2016 in ranges of the Polish parts of the Carpathians and Sudetes. Field studies revealed periodical occurrence and disappearance of populations in the localities for one or more seasons, which may be connected with the life cycle of annual plants. The phenomena of periodicity occurrence and seed dormancy and their consequences are discussed.

Keywords: Euphrasia, periodicity, protected areas, botanical research