Taxonomic Composition and Photosynthetic Characteristics of the `Biological Soil Crusts' Covering Sand Dunes in the Western Negev Desert

1992 ◽  
Vol 6 (5) ◽  
pp. 519 ◽  
Author(s):  
O. L. Lange ◽  
G. J. Kidron ◽  
B. Budel ◽  
A. Meyer ◽  
E. Kilian ◽  
...  
Keyword(s):  
Sand Dunes ◽  
Biological Soil Crusts ◽  
Taxonomic Composition ◽  
Photosynthetic Characteristics ◽  
Negev Desert ◽  
Soil Crusts

Discussion on wind factor influencing the distribution of biological soil crusts on surface of sand dunes

2013 ◽  
Vol 5 (6) ◽  
pp. 739
Author(s):  
Wu YongSheng ◽  
Erdun Hasi ◽  
Yin RuiPing ◽  
Zhang Xin ◽  
Ren Jie ◽  
...  
Keyword(s):  
Sand Dunes ◽  
Biological Soil Crusts ◽  
Soil Crusts

scholarly journals Algae of biological soil crusts from sand dunes of the Danube Delta biosphere reserve (Odesa Region, Ukraine)

Algologia ◽  
2021 ◽  
Vol 31 (1) ◽  
pp. 25-62
Author(s):  
T.I. Mikhailyuk ◽  
◽  
O.M. Vinogradova ◽  
K. Glaser ◽  
N. Rybalka ◽  
...  
Keyword(s):  
Species Composition ◽  
Phylogenetic Analyses ◽  
Sand Dunes ◽  
Biosphere Reserve ◽  
Biological Soil Crusts ◽  
Danube Delta ◽  
Climate Type ◽  
Soil Crusts ◽  
Comparison Of The Results ◽  
Danube Delta Biosphere Reserve

The species composition of algae from biological soil crusts (biocrusts) on the surface of sand dunes (Black Sea coast, Primorske, Izmail District, Odesa Region, Ukraine) was investigated. Samples were collected from three coastal localities: Katranivska Spit, Zhebryianska Bay and Zhebryianska Ridge. The latter two localities are in the territory of the Danube Delta Biosphere Reserve. The samples were investigated by direct microscopy, followed by a culture approach. 60 species from Chlorophyta (32), Cyanobacteria (16), Streptophyta (7) and Ochrophyta (5) were identified. Representatives of the cyanobacterial genera Microcoleus Desmazières ex Gomont, Coleofasciculus M.Siegesmund, J.R.Johansen & T.Friedl, Nostoc Vaucher ex Bornet & Flahault, Hassallia Berkeley ex Bornet & Flahault, and streptophytes from the genus Klebsormidium P.C.Silva, Mattox & W.H.Blackwell dominated in the studied biocrusts. Phylogenetic analyses based on 16S/18S rRNA as well as 16S-23S ITS/ITS-1,2 regions were undertaken for some strains of cyanobacteria and eukaryotic algae. As a result, species identification and their position in respective phylogeny was refined, as well as aiding the discovery of some interesting and rare species. New genera and species were described (Streptosarcina arenaria Mikhailyuk & Lukešová and Tetradesmus arenicola Mikhailyuk & P.Tsarenko); with two genera (Nodosilinea R.B.Perkerson & D.A.Casamatta and Pleurastrosarcina H.J.Sluiman & P.C.J.Blommers) and four species reported for the first time for the flora of Ukraine (Nodosilinea epilithica Perkerson & Casamatta, Pseudomuriella aurantiaca (W.Vischer) N.Hanagata, Pleurochloris meiringensis Vischer, Pleurastrosarcina terriformae Darienko, W.J.Kang, Orzechowski & Pröschold). Comparison of the results from this study with similar investigations at Cape Kazantip (Sea of Azov, Ukraine) and at two islands of the Baltic Sea (Rügen, Usedom, Germany) revealed that sand composition and texture, as well as climate type of the respective region, are the main factors determining species composition of algae and cyanobacteria in biocrusts of maritime dunes.

Algae of Biological Soil Crusts from Sand Dunes of the Danube Delta Biosphere Reserve (Odesa Region, Ukraine)

2021 ◽  
Vol 23 (1) ◽  
pp. 7-42
Author(s):  
T. I. Mikhailyuk ◽  
O. M. Vinogradova ◽  
K. Glaser ◽  
N. A. Rybalka ◽  
E. M. Demchenko ◽  
...  
Keyword(s):  
Sand Dunes ◽  
Biosphere Reserve ◽  
Biological Soil Crusts ◽  
Danube Delta ◽  
Soil Crusts ◽  
Danube Delta Biosphere Reserve

Cyanobacterial Diversity in Biological Soil Crusts along a Precipitation Gradient, Northwest Negev Desert, Israel

2014 ◽  
Vol 70 (1) ◽  
pp. 219-230 ◽  
Author(s):  
Martin Hagemann ◽  
Manja Henneberg ◽  
Vincent J. M. N. L. Felde ◽  
Sylvie L. Drahorad ◽  
Simon M. Berkowicz ◽  
...  
Keyword(s):  
Biological Soil Crusts ◽  
Negev Desert ◽  
Precipitation Gradient ◽  
Soil Crusts ◽  
Cyanobacterial Diversity

scholarly journals Topographic differentiations of biological soil crusts and hydraulic properties in fixed sand dunes, Tengger Desert

2014 ◽  
Vol 7 (2) ◽  
pp. 205-215 ◽  
Author(s):  
ZhiShan Zhang ◽  
YongLe Chen ◽  
BinXing Xu ◽  
Lei Huang ◽  
HuiJuan Tan ◽  
...  
Keyword(s):  
Hydraulic Properties ◽  
Sand Dunes ◽  
Biological Soil Crusts ◽  
Tengger Desert ◽  
Soil Crusts

Variation of albedo to soil moisture for sand dunes and biological soil crusts in arid desert ecosystems

2013 ◽  
Vol 71 (3) ◽  
pp. 1281-1288 ◽  
Author(s):  
Ya-feng Zhang ◽  
Xin-ping Wang ◽  
Rui Hu ◽  
Yan-xia Pan ◽  
Hao Zhang
Keyword(s):  
Soil Moisture ◽  
Sand Dunes ◽  
Biological Soil Crusts ◽  
Desert Ecosystems ◽  
Soil Crusts ◽  
Arid Desert

scholarly journals Eco-physiological characterization of early successional biological soil crusts in heavily human impacted areas – Implications for conservation and succession

2017 ◽  
Author(s):  
Michelle Szyja ◽  
Burkhard Büdel ◽  
Claudia Colesie
Keyword(s):  
Carbon Fixation ◽  
Climatic Factors ◽  
Biological Soil Crusts ◽  
Taxonomic Composition ◽  
Nostoc Commune ◽  
Fixation Rate ◽  
Physiological Characterization ◽  
Soil Crusts ◽  
Disturbed Areas

Abstract. Eco-physiological characterization of photoautotrophic communities is not only necessary to identify the response of carbon fixation related to different climatic factors, but also to evaluate risks connected to changing environments. In biological soil crusts (BSCs), the description of eco-physiological features is difficult, due to the high variability in taxonomic composition and variable methodologies applied. Especially for BSCs in early successional stages, the available datasets are rare or focused on individual constituents, although these crusts may represent the only photoautotrophic component in many heavily disturbed ruderal areas, like parking lots or building areas with increasing surface area worldwide. We analyzed the response of photosynthesis and respiration to changing BSC water contents, temperature and light in two early successional BSCs. One BSC was dominated by the cyanobacterium Nostoc commune, the other by the green alga Zygogonium ericetorum. Independent of species composition, both crust types had convergent features like high light acclimatization and low or no depression in carbon uptake at water suprasaturation. This particular setup of eco-physiological features may enable these communities to cope with a high variety of climatic stresses, and may therefore be a reason for their success in heavily disturbed areas with ongoing human impact. Nevertheless, a major divergence between the two BSCs was their absolute carbon fixation rate on a chlorophyll basis, which was significantly higher for the cyanobacterial crust. This study emphasizes the importance of measuring intact BSCs under natural conditions for collecting reliable data.

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