As a result of the study of the species diversity of lichens in the vicinity of the Burabay National Park, 44 species of lichens belonging to 9 families and 19 genera were identified. The results of the study are shown in the Table 1:
Table 1
Species composition of lichens in the Burabay National Park
Genus | Species | Life form | Substrate |
Family Dermatocarpaceae |
1. Dermatocarpon | Dermatocarpon aquaticum (Weiss.) Zahlbr. | scale | stones submerged in water |
Family Verrucariaceae |
2. Verrucaria | Verrucaria nigrescens (Асh.) Pers. | scale | stones |
Family Peltigeraceae |
3. Peltigera | Peltigera spuria (Асh.) DС. | leafy | soil |
Peltigera canina (L.) Willd. | leafy | soil/stumps |
Peltiqera rufescens (Weis.) Humb. | scale | stones |
Family Lecideaceae |
4. Psora | Hypocenomyce scalaris (Ach. ex Lilj.) M. Choisy (Psora оstreata) | scale | bark/stones |
5. Rhizocarpon | Rhizocarpon geographicum (L.) DC. | scale | stones |
6. Lecidea | Lecidea glomerulosa Steud. | scale | bark |
Family Cladoniaceae |
7. Cladonia | Cladonia fimbriata (L.) Fr. | bushy | mossy stumps |
Cladonia gracilis (L.) Willd. | bushy | soil |
Cladonia sylvatica (L.) Hoffm. | bushy | soil |
Cladonia rangiferina (L.) | bushy | stumps/soil |
Cladonia coccifera (L.) Willd. | bushy | soil |
Cladonia alpicola (Flоt.) Vain. | bushy | soil |
Cladonia verticillata (Hoffm.) Schaer. | bushy | sandy |
Cladonia deformis (L.) | bushy | forest litter/ stumps |
Cladonia crispate (Ach.) Flot. | bushy | mossy stumps |
Cladonia cornuta (L.) Hoffm. | bushy | mossy stumps |
Cladonia tenuis (F I k.) Нагm. | bushy | soil/stumps |
Cladonia coniocraea (Flk.) Spreng. | bushy | tree trunk |
Cladonia alpestris (L.) Rabenh. | bushy | sand soil |
Family Lecanoraceae |
8. Haematomma | Haematomma ventosum (L.) | | limestone |
Family Parmeliaceae |
9. Parmellia | Parmelia vegans Nyl. | leafy | soil |
Parmelia sulcatа Taylor | leafy | tree trunk |
Parmelia caperata (L.) Ach. | Leafy | bark |
Parmelia acetabulum (Neck.) Duby. | Leafy | bark |
Parmelia saxatilis Linds. | Scale | stones |
Parmelia olivacea (L.) Ach. | Scale | stones |
10. Hypogymnia | Hypogymnia physodes (L.) Nyl. | Leafy | bark |
11. Evernia | Evernia prunastri (L.) Ach. | Bushy | bark |
Evernia thamnodes (Flot.) Arnold. (син.: Letharia thamnodes (Flot.) Arnold.) | bushy | bark |
12. Xanthoparmelia | Xanthoparmelia conspersa (Ehrh.) Ach. | Leafy | stones |
13. Parmeliopsis | Parmeliopsis hyperopta (Ach.) Vain. | Leafy | bark |
Parmeliopsis pallescens (Hoffm.) Hillm. | Leafy | bark |
14. Cetraria | Cetraria glauca (L.) Ach. | Leafy | bark |
Cetraria pinastri (Scop) S.F. Gray. | Leafy | bark |
Family Teloschistaceae |
15. Caloplaca | Caloplaca murorum (Hоffm.) Th. Fr. | Scale | stones |
Caloplaca aurantiaca (Lightf.) Тh. Fr. | Scale | bark |
16. Xantoria | Xantoria candelaria (L.) Th. Fr. | Leafy | bark |
Family Physciaceae |
17. Physcia | Physcia aipolia (Ehrh.) Furnr. | Leafy | bark |
Physcia stellaris (L.) Nyl. | Leafy | bark |
18. Gasparrinia | Gasparrinia elegans (Link.) Stein | scale | stones |
19. Gyrophora | Gyrophora murina (Ach.) | leafy | stones |
Gyrophora polyphylla (L.) Funсk. | Leafy | stones |
The system given in the 10th edition of the Dictionary of the Fungi (Anisworth et al..., 2008) is taken as a basis. The nomenclature of taxa is given by the Index Fungorum. In the new version of the system, lichens and fungi close to them are assigned to 5 classes of Ascomycota and one class of Basidiomycota. Systematically, all identified lichens belong to the class of marsupials (Ascolichenes), two subclasses (Pyrenocarpeae, Gymnocarpeae) and can be presented in the following taxonomic order:
Kingdom – Real mushrooms (Fungi (Mycota, Mycetalia)
Sub–kingdom - Higher mushrooms (Dikarya)
Department – Marsupial mushrooms (Ascomycota (Berk.) Caval.-Sm. (1998)
Sub-division – Pezizomycotina O.E. ERIKSS. & WINKA, Myconet 1: 9 (1997)
Class Marsupial lichens – Ascolichenes
Subclass Pyrenocarpaceae – Pyrenocarpeae
Order Pyrenocarpaceae – Pyrenocarpales
Family Verrucariaceae – Verrucariaceae; genus Verrucaria.
The family Dermatocarpaceae – Dermatocarpaceae; genus Dermatocarpon.
Gymnocarpaceae Subclass – Gymnocarpeae
The Order Round – Fruited - Cyclocarpales
Peltigeraceae family - Peltigeraceae; genus Peltigera.
Lecideaceae family – Lecideaceae; genera: Lecidea; Psora; Rhizocarpon.
Family Cladoniaceae – Cladoniaceae; genera: Cladonia; Thamnolia.
Lecanoraceae family - Lecanoraceae; genus Haematomma.
The Parmelia family – Parmeliaceae; genera: Parmelia; Parmeliopsis; Cetraria; Hypogymnia; Evernia.
Teloschistaceae family - Teloschistaceae; genera: Caloplaca; Xanthoria.
The Fisciaceae family – Physciaceae; genera: Gasparrinia; Gyrophora; Physcia.
The average number of births per family is 2.11. The Parmeliaceae family (6 genera), Lecideaceae and Physciaceae (3 genera each) are the leaders in the number of genera. The Teloschistaceae family is represented by two genera. There are 5 families represented by one genus (Cladoniaceae, Dermatocarpaceae, Lecanoraceae, Peltigeraceae, Verrucariaceae). Its high position in the flora of the Parmeliaceae family brings it closer to the boreal flora of the Holarctic (Golubkova, 1983). However the specific features in the area include the presence of the Verrucariaceae family, which is characteristic of the flora of the arid regions of the Holarctic. Thus, the floral spectrum of lichens of the studied region combines features characteristic of the arid and boreal lichenoflora of the Holarctic, which indicates the heterogeneity of the lichenoflora of the region, to a certain extent corresponding to its geographical location.
The average number of species in a genus is 2.32. 2 out of 19 genera combining 19 species (43.2% of the total number) are characterized by an above-average indicator. These are the genus Cladonia (13 species) and the genus Parmellia (6 species).
The most numerous in terms of species diversity was the family Parmeliaceae – 14 species (31.8%). The second place belongs to the Cladoniaceae family – 13 (29.5% of the total number of species). The Physciaceae family is represented by five species (11.4%), the Lecideaceae, Peltigeraceae and Teloschistaceae families are represented by three species (6.8% each). The remaining families are represented by single species; they account for 6.8% of the detected species.
Based on the relative role of the leading families and genera in the flora, the territory of the Burabay National Park can be characterized as boreal with pronounced arid features.
Despite the fact that most researchers distinguish four main groups of lichens in relation to the substrate (epiphytic, epilitic, epigeic, epicylic), in relation to other habitat conditions (soil specificity, waterlogging, features of biological residues, etc.), this classification can be expanded by highlighting the following ecological and substrate groups (Oxner, 1974; Plant life..., 1977; Merkulova, 2006): 1) epilitic (stones, rocks); 2) epiphytic (bark of trunks of woody plants and shrubs); 3) epigeal (soil, soil sediments); 4) epigeic-epilitic (sandstones, poor soils); 5) epigeic-calcifilic (on limestone); 6) eurysubstrate (on two or more substrates); 7) epiphytic-epicylic (on rotting wood, wet mossy stumps); 8) epibriophytic (on mosses); 9) epilichenophilic (on other lichens); 10) epicyl (exposed wood (trunks without bark); 11) epiphytoreliquites (on dead mosses, plant remains (forest litter); 12) amphibites (on rocks or other substrates, most of the time submerged in water).
In accordance with this, 9 ecological and substrate groups of lichens can be allocated for the lichen flora of the surroundings of the Burabay National Park:
1) epilitic (10 taxa; 22.7%);
2) epiphytic (14 taxa; 31.8%);
3) epigeic (6 taxa; 13.6%);
4) epigenic-epilitic (2 taxa; 4.6%);
5) epigeino-calcifilic (1 taxon; 2.3%);
6) eurysubstrate (5 taxa; 11.4%);
7) epicylic (2 taxa; 4.5%);
8) epiphyto-epicyl (3 taxa; 6.8%);
9) the amphibian ecological-substrate group is represented by the lichen Dermatocarpon aquaticum (Weiss.) Zahlbr. (2,3%).
In relation to the substrate, the species diversity of lichens decreases in a row: on soil > on bark > on Stone. Thus, lichens belonging to the epiphytic and epigeic groups (in total) predominate in the studied territory; their total number is 26 species (59.1%).
The biomorphological structure of lichens is the result of long–term evolutionary changes in the process of adaptation to environmental conditions. In sharply continental, arid, Arctic and high–altitude areas, scale lichens predominate; in humid temperate and tropical climatic zones - leafy; more northern and sufficiently mesophilic landscapes are characterized by the dominance of bushy lichens. Of the 44 lichen species of the Burabai National Park, 11 species belong to scale life forms, 17 – to leafy, and 16 – to bushy. This distribution of life forms is most likely due to the location of the research area in a warm temperate moderately humid forest-steppe zone.
Of the 44 lichen species found in the Burabai National Park, 1 species is included in the Red Book of Kazakhstan – Cladonia rangiferina (L.) (Red Book..., 1981; Sultangazina et al., 2012b; Sultangazina et al., 2014; Khrustaleva et al., 2012).