Interactions between soil phototrophs and vascular plants in Himalayan cold deserts

0482394 - BÚ 2018 RIV GB eng J - Článek v odborném periodiku
Řeháková, Klára - Čapková, Kateřina - Dvorský, Miroslav - Kopecký, Martin - Altman, Jan - Šmilauer, P. - Doležal, Jiří
Interactions between soil phototrophs and vascular plants in Himalayan cold deserts.
Soil Biology and Biochemistry. Roč. 115, dec 2017 (2017), s. 568-578. ISSN 0038-0717
Grant CEP: GA ČR GA13-13368S
Institucionální podpora: RVO:67985939
Klíčová slova: microbial communities * vascular plants * interactions
Obor OECD: Ecology
Impakt faktor: 4.926, rok: 2017

Our results show that the investigated primary producers (vascular plant and cyanobacteria) differ in elevational responses in the cold deserts of the Himalayas. Plant richness, diversity and abundance decreased significantly with elevation. The same parameters in vegetated soil cyanobacterial communities did not change across the elevational transect, while the bare soil cyanobacterial diversity, bundance and richness increased with elevation. The vegetated-soil cyanobacterial communities are much less diverse than bare-soil communities and are unrelated to plant cover, unlike communities from bare-ground soil, which have a strongly reduced diversity by competitive expansion and space occupation by vascular plants. This pattern contrasts with driving factors for cyanobacterial species composition, which in vegetated soil communities is strongly dependent on the species composition of vascular plants, unlike communities from bare-ground soil whose compositional ariation is related to soil chemistry and elevation. Our results suggest that diversity, abundance and composition of vascular plant and cyanobacterial assemblages in dry cold environments are controlled by different environmental drivers and that both assemblages influence the diversity and composition of each other. The presented research provides comprehensive insights into the factors influencing the biodiversity and community assemblage processes in the dry mountain ecosystems of Himalaya and Tibet.
Trvalý link: http://hdl.handle.net/11104/0277794