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Macroecology and Biogeography meeting

May 3rd to 6th 2023 - Universität Bayreuth

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Fragmentary blue – the paradox in flower colors in arctic and alpine ecosystems.

Anke Jentsch1, Andreas von Heßberg, Mani Shresta
1 Disturbance Ecology and Vegetation Dynamics, University of Bayreuth

P 2.18 in Poster Session Friday (14:45-15:30)

Alpine ecosystems are characterized by high diversity of flowering plants. However, a discrepancy between flower color vision by human versus pollinator eyes has been found. We measured light reflectance properties of 315 flowering plant species from calcareous and siliceous, subalpine and alpine grasslands in Europe. The discrepancy between human and pollinator vision increases with elevation. Calcareous grasslands have a higher color diversity and a higher number of blue and bluegreen flowers than siliceous grasslands. Although alpine areas harbor a higher number of plant species, subalpine areas show higher color diversity.

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