Universität zu Köln

Roshan, Samira Khanipour, Dumack, Kenneth ORCID: 0000-0001-8798-0483, Bonkowski, Michael ORCID: 0000-0003-2656-1183, Karsten, Ulf and Glaser, Karin (2020). Stramenopiles and Cercozoa dominate the heterotrophic protist community of biological soil crusts irrespective of edaphic factors. Pedobiologia, 83. MUNICH: ELSEVIER GMBH. ISSN 1873-1511

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Abstract

Biological soil crusts (biocrusts) are terrestrial micro-habitats distributed in drylands and also in temperate coastal dunes. Biocrusts harbor phototrophic and heterotrophic microorganisms in the upper soil layer, which fulfil important ecological functions such as primary production and energy channelling via the microbial loop. Heterotrophic protists, although being an essential component of the microbial food web of biocrusts, have rarely been investigated. Therefore, in the present study, we used the liquid aliquot method (LAM) to assess the abundance and diversity of protists in biocrusts from coastal dunes at the Baltic Sea for the first time. The total abundance of protists ranged between 10 x 10(3) and 128 x 10(3) individuals g(-1) dry weight. The community was dominated by naked amoebae (54 %) and flagellates (44 %). The most common taxa were Spumella-like flagellates (Stramenopiles), Paracercomonas-like amoeboflagellates, and Sandonidae-like glissomonads (both from the phylum Cercozoa) as well as heteroloboseans. Despite significant differences in the beta diversity of protist morphotypes, the measured environmental drivers, such as pH, total organic carbon, nitrogen, and phosphorus did not explain these differences. Also, the geographical distance could not predict the community dissimilarity, suggesting that the diversity of protists in biocrusts is controlled by biotic or other physicochemical parameters.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Roshan, Samira Khanipour UNSPECIFIED UNSPECIFIED UNSPECIFIED Dumack, Kenneth UNSPECIFIED orcid.org/0000-0001-8798-0483 UNSPECIFIED Bonkowski, Michael UNSPECIFIED orcid.org/0000-0003-2656-1183 UNSPECIFIED Karsten, Ulf UNSPECIFIED UNSPECIFIED UNSPECIFIED Glaser, Karin UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-312792
DOI:	10.1016/j.pedobi.2020.150673
Journal or Publication Title:	Pedobiologia
Volume:	83
Date:	2020
Publisher:	ELSEVIER GMBH
Place of Publication:	MUNICH
ISSN:	1873-1511
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language NAKED AMEBAS; ARABLE SOIL; RAIN-FOREST; DIVERSITY; PROTOZOA; DESERT; BIODIVERSITY; POPULATIONS; ABUNDANCE; BACTERIAL Multiple languages Ecology; Soil Science Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/31279