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Selle kollektsiooni püsiv URIhttp://hdl.handle.net/10492/5570

Sirvi

Sirvi Andmekogud Autor "Heinsoo, Katrin" järgi

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  • Pisipilt ei ole saadaval
    Kirje
    Differences in reproductive performance traits of two Platanthera species : [dataset]
    (Estonian University of Life Sciences, 2025) Mõtlep, Marilin; Ilves, Aigi; Kull, Tiiu; Heinsoo, Katrin; Tali, Kadri
    The species Platanthera bifolia and P. chlorantha (Orchidaceae) are both declining in Europe, but P. bifolia has been diminishing relatively more. Loss of habitats and landscape heterogeneity due to agricultural intensification or abandonment of less fertile areas are primary drivers of decreasing orchid populations. We measured reproductive traits (fruit and flower count per plant, fruit weight, seed number and weight, the proportion of seeds with embryos and germination success) to compare the reproductive success of the two species in different habitats across Estonia. P. chlorantha tends to reach its full fruiting capacity in smaller size classes, despite a relatively low base level. Germination success was low for both species but twice as high for P. chlorantha than its congener. We propose that higher proportion of embryos in fruits of P. chlorantha in shade and woodland growing conditions is related to higher availability of diverse pollinators. P. chlorantha, albeit growing on its northern distribution limit in Estonia, seems to be tolerating the abandonment of its habitats more effectively than P. bifolia, at least with respect to reproductive performance traits. M&M. In 2017 and 2018, we studied seven pure P. bifolia populations, seven pure P. chlorantha populations and three mixed populations, comprising a total of 17 populations.
  • Pisipilt
    Kirje
    Supplementary materials to the article "Medicinal Plants in Semi-Natural Grasslands: Impact of Management"
    (Estonian University of Life Sciences, 2022) Heinsoo, Katrin
    The supplementary material contains (S1) species accumulation curves of different habitats based on species lists originating from https://dspace.emu.ee/xmlui/handle/10492/6300 and the Estonian Environmental Board database. Lists of Estonian MP species (S2) by each scenario are based on the following literature sources: Estonian Agency of Medicine. Ravimina Määratletud Raviomadustega Ainete ja Taimede Nimekiri; 2020 (access 25.11.2020) (scenario 1); Tammeorg, J.; Kook, O.; Vilbaste, G. Eesti NSV Ravimtaimed, 5th ed.; Valgus: Tallinn, Estonia, 1984 (scenario 2) and Raal, A. Maailma Ravimtaimede Entsüklopeedia; Estonian Encyclopaedia Publishers: Tallinn, Estonia, 2010; ISBN 978-9985-70-313-7 (scenario 3).