scholarly journals Hieracium pilosella L. – a new adventive species for the flora of the Tian Shan (Kazakhstan)

Turczaninowia ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 21-24
Author(s):  
Anna A. Ivashchenko ◽  
Karime T. Abidkulova
Keyword(s):  
Population Density ◽  
Plant Community ◽  
River Valley ◽  
Northern Slope ◽  
Adventive Species ◽  
Hieracium Pilosella ◽  
Tian Shan

Information is given about the finding of Hieracium pilosella L. in the Issyk River valley on the northern slope of the Zailiysky Alatau ridge. The habitat of the species, the composition of the plant community with its participation are described, the data on the population density of the species, the ratio of generative and vegetative individuals are provided. The appearance of this adventive species in the immediate vicinity of Almaty in the last decade is most likely due to the increasing recreational load on this territory.

scholarly journals Floristic diversity and use value of phytocoenoses in a section of the Wieprz river valley in Roztocze National Park for feeding the konik polski horse

2020 ◽  
Vol 74 (4) ◽  
pp. 123-134
Author(s):  
TERESA GRAŻYNA WYŁUPEK ◽  
HANNA KLIKOCKA ◽  
MARIUSZ KULIK ◽  
HALINA LIPIŃSKA ◽  
ADAM GAWRYLUK
Keyword(s):  
Plant Community ◽  
Plant Communities ◽  
National Park ◽  
Dry Weight ◽  
Wiener Index ◽  
River Valley ◽  
Use Value ◽  
Floristic Diversity ◽  
Feeding Preferences ◽  
Phytosociological Relevés

The paper describes the floristic diversity and specifies its use value in terms of feeding preferences of konik polski horses and their consumption of permanent grassland in a section of the Wieprz river valley in Roztocze National Park. The flora assessment was conducted by analyzing 79 phytosociological relevés using the Braun-Blanquet method. The results of phytosociological surveys made it possible to distinguish 7 complexes in the Phragmitetea class, 5 complexes and 1 plant community in the Molinio-Arrhenatheretea class, and 1 complex in the Nardo-Callunetea class. Natural values of the examined associations were described based on the total and average number of species in a phytosociological relevé, the Shannon-Wiener index, and the phytosociological structure of plant communities. The use value of dry weight of the analyzed meadows and pastures was estimated by means of the use value number (UVN) and taking into account the and yield size. The phytocoenoses identified in the meadows in the section of the Wieprz river valley under study exhibited high natural values (H’ = 3.20–4.62). The dry weight yields of the examined communities varied (from 1.32 to 5.37 t ha–1), but their sward usually had poor and very poor use value (UVN = from –0.55 to 5.8). Furthermore, it should be noted that the sward of wet meadows is readily consumed by the grazing animals, which contributes to the improvement of the natural and use value of meadows.

scholarly journals Myosotis refracta Boiss. (Boraginaceae), an Unexpected Forget-me-not in the Slovene Flora

2016 ◽  
Vol 75 (2) ◽  
pp. 210-212 ◽  
Author(s):  
Simona Strgulc Krajšek ◽  
Marko Accetto ◽  
Nejc Jogan
Keyword(s):  
Plant Community ◽  
Balkan Peninsula ◽  
River Valley ◽  
Unexpected Finding ◽  
North West ◽  
New Localities

Abstract Myosotis refracta Boiss. is reported as a new and unexpected finding for the Slovene flora. The species was found in three collections stored in the Herbarium LJU from south-east Slovenia, in the Kolpa river valley bordering Croatia. All plants thrived under overhanging dolomite rocks. On account of an earlier misidentification, the respective plant community had been described as the association Arabido alpinae-Myosotidetum strictae Accetto 2008, which is here corrected to Arabido alpinae-Myosotidetum refractae Accetto 2008 corr. Strgulc Krajšek, Accetto & Jogan 2016. Myosotis refracta has a disjunct Mediterranean-southwest Asian distribution. The reported new localities extend its known range more than 500 km in north-west direction, from its nearest known occurrences on the southern Balkan peninsula.

Fusarium species in declining wild apple forests on the northern slope of the Tian Shan Mountains in north-western China

2019 ◽  
Vol 49 (5) ◽  
pp. e12542 ◽  
Author(s):  
Yuan Cheng ◽  
Wenxia Zhao ◽  
Ruozhu Lin ◽  
Yanxia Yao ◽  
Shaoshuai Yu ◽  
...  
Keyword(s):  
Fusarium Species ◽  
Western China ◽  
Northern Slope ◽  
Tian Shan Mountains ◽  
North Western ◽  
Tian Shan

scholarly journals Macromycetes of the proposed nature reserve Wilcze Uroczysko-Olszanka in the Odra estuary

2014 ◽  
Vol 32 (2) ◽  
pp. 239-255 ◽  
Author(s):  
Stefan Friedrich
Keyword(s):  
Endangered Species ◽  
Plant Community ◽  
Nature Reserve ◽  
River Valley ◽  
Odra River ◽  
Odra Estuary

The paper presents a characterisation of the mycoflora on the cupola-type rised bog in the Odra river valley. The characteristic of each species includes: type of substrate and plant community, date of fruitbody occurence, and the forest unit, where the species was observed. Systematic, ecological and sociological analyses of the mycoflora have been performed and the protected and endangered species singled out.

Mississippian Period Population Density in a Segment of the Central Mississippi River Valley

1986 ◽  
Vol 51 (2) ◽  
pp. 227-238 ◽  
Author(s):  
George R. Milner
Keyword(s):  
North America ◽  
Population Density ◽  
Mississippi River ◽  
River Valley ◽  
Population Estimates ◽  
Mississippi River Valley ◽  
Mississippian Period

Recent archaeological investigations of Mississippian period (A.D. 1000–1400) sites permit the development of population estimates for an area immediately south of Cahokia, the largest prehistoric site in North America. Population estimates are derived from the number of structures at 11 sites, with the amount of prehistorically habitable land being incorporated as part of the estimating procedure. Population density increased somewhat during the earliest two of four Mississippian phases, reaching its peak during the Stirling phase. Thereafter, population decreased, reaching its lowest point during the Sand Prairie phase.

scholarly journals Radiocarbon dating small landslides on the slopes inthe Mzymta river valley

2017 ◽  
pp. 45-48 ◽  
Author(s):  
Yu. K. Vasil’Chuk ◽  
E. S. Slyshkina
Keyword(s):  
Organic Material ◽  
Radiocarbon Dating ◽  
River Valley ◽  
The Body ◽  
Northern Slope ◽  
Southern Slope ◽  
Western Caucasus

The results of the first study, which aims to determine the age of landslides on the southern slope of the Psekhako ridge and northern slope of the Aibga ridge (Western Caucasus) using radiocarbon dating of organic material incorporated into the body of a landslide.

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