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International Journal on Algae
SJR: 0.219 SNIP: 0.261 CiteScore™: 0.24

ISSN Imprimer: 1521-9429
ISSN En ligne: 1940-4328

International Journal on Algae

DOI: 10.1615/InterJAlgae.v8.i2.10
pages 109-128

Diversity and ecology of sandstone-inhabiting algae in casemates of Luxembourg

T. M. Darienko
N.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine, 2, Tereshchenkovskaya St., 01001 Kiev, Ukraine
L. Hoffmann
Public Research Centre-Gabriel Lippmann, CREBS, 4, rue du Brill, L-4422 Belvaux, Grand-duchy of Luxembourg

RÉSUMÉ

This research presents the results of a study of diversity and ecological peculiarities of algae inhabiting sandstone walls in hypogean casemates of the city of Luxembourg. A total of 59 taxa belonging to four divisions of algae were revealed: Cyanoprocaryota = Cyanophyta − 15, Chlorophyta - 30, Bacillariophyta - 10, Eustigmatophyta - 2. Unicellular and filamentous chlorophytes together with filamentous cyanobacteria dominated in species composition. Culture-based observations are presented on a number of noteworthy and poorly described taxa. It was found that species composition of hypogean algae is heterogenous: each studied gallery is inhabited by several algal communities. Two ecological groups, trogloxenes and troglophiles, are represented in studied species composition. Trogloxenes make up 60% of revealed species of algae. It is shown that species composition of algae of the casemates has more in common with those of open-air sandstone substratums than with species composition of algae of lime caves.