scholarly journals Biodiversity of Birch Forests in Mariy Chodra National Park

2021 ◽  
Vol 818 (1) ◽  
pp. 012034
Author(s):  
G O Osmanova ◽  
I I Firulina ◽  
A G Rozenberg
Keyword(s):  
ÈKOBIOTEH ◽  
2020 ◽  
Vol 3 (3) ◽  
pp. 370-378
Author(s):  
A.S. Tretyakova ◽  

The article deals with rare forest plant communities of the National Park «Pripyshminsky Bory» in the Sverdlovsk Region. Rare forest plant communities include valuable areas of spruce, pine and birch forests. Among the unique and rare, we propose to include communities with Dianthus krylovianus and communities with Calluna vulgaris. The authors gave the phytocenotic characteristic of each community and the composition of rare and protected plants. These communities can be classified as rare based on a set of criteria, which includes species richness, the presence of rare species, and scientific importance. This information can become the basis for monitoring the status of rare and endangered plant species in the region.


2015 ◽  
Vol 4 (2) ◽  
pp. 99-103
Author(s):  
Evgeniy Sergeevich Korchikov ◽  
Sofya Alexandrovna Pushkina

The are 266 medicinal vascular plants from 181 genera, 64 families, 5 phylum (Lycopodiophyta, Equisetophyta, Pteridophyta, Pinophyta, Magnoliophyta) in the Buzuluksky Bor national park. 67 species of medicinal vascular plants from 59 genera, 27 families and 4 phylum grows in forest communities, which are the most widespread such plants as Chelidonium majus L., Convallaria majalis L., Fallopia convolvulus (L.) A. Lve, Polygonatum odoratum (Mill.) Druce, Taraxacum officinalis L. and Pinus sylvestris L. Increasing number of medicinal plants has a considerable projective covering in oak forests. 30 species of medicinal plants, most of all their share in the maple forests are specific to a certain type of forest communities. The greatest similarities of specific structure of medicinal plants are oak and birch communities. The number of medicinal plants in forest communities decreases among: oak forests (35 species) birch forests (33 species) pine forests (30 species) maple forests (29 species). With increase in a gigrotope and reduction of a trofotope in community of the national park Buzuluksky Bor located in a forest-steppe zone a variety of medicinal plants increases, however the heliotope has no significant impact on number of medicinal plants. In the territory of national park Buzuluksky Bor it is recommended to collect herbs only in a recreational zone and a zone of informative tourism, and in oak and birch forests. Convallaria majalis, Pteridium aquilinum, Aegopodium podagraria, Polygonatum odoratum are less vulnerable when collecting medicinal raw materials.


Author(s):  
M. R. Edwards ◽  
J. D. Mainwaring

Although the general ultrastructure of Cyanidium caldarium, an acidophilic, thermophilic alga of questionable taxonomic rank, has been extensively studied (see review of literature in reference 1), some peculiar ultrastructural features of the chloroplast of this alga have not been noted by other investigators.Cells were collected and prepared for thin sections at the Yellowstone National Park and were also grown in laboratory cultures (45-52°C; pH 2-5). Fixation (glutaraldehyde-osmium), dehydration (ethanol), and embedding (Epon 812) were accomplished by standard methods. Replicas of frozenfracture d- etched cells were obtained in a Balzers apparatus. In addition, cells were examined after disruption in a French Press.


2011 ◽  
Author(s):  
Levi Zitting ◽  
Britton Mace ◽  
Grant Corser
Keyword(s):  

2013 ◽  
Author(s):  
Jacqueline Vaughn ◽  
Hanna J. Cortner

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