scholarly journals Estimation of the rare status of Iris aphylla L. according to the categories and criteria of the IUCN Red list in the western and eastern edge of the East European plain

2020 ◽  
Vol 24 ◽  
pp. 00075
Author(s):  
Stepan Senator ◽  
Sergey Savchuk ◽  
Vladimir Lebed’ko
Keyword(s):  
Russian Federation ◽  
Iucn Red List ◽  
Red List ◽  
East European Plain ◽  
East European ◽  
Samara Oblast ◽  
Environmental Status ◽  
Eastern Edge

The article contains information on assessing the environmental status of Iris aphylla populations according to the categories and criteria of the IUCN Red List. It was found that in Gomel Oblast (Republic of Belarus) and Samara Oblast (Russian Federation), I. aphylla is characterized as “Vulnerable” (VU). The resulting categories reflect the specifics of regional conditions affecting populations.

scholarly journals Wild flora of the State Wildlife area «Gornenskiy» (Rostov region)

2020 ◽  
Vol 19 (1) ◽  
pp. 203-207
Author(s):  
A. N. Shmarayeva ◽  
Zh. N. Shishlova ◽  
V. V. Fedyayeva ◽  
I. P. Kuzmenko ◽  
O. Y. Yermolayeva
Keyword(s):  
Russian Federation ◽  
Iucn Red List ◽  
Red List ◽  
The State ◽  
Seed Plants ◽  
Red Lists ◽  
Rostov Region ◽  
The Russian Federation

The article gives a brief description of seed plants flora of the State Wildlife area «Gornenskiy» (GPZ«Gornenskiy»). The flora of Wildlife area includes 507 species from 70 families and 278 genera. Species of steppeecology are dominated in the flora, and the sinatropization index is 19.1 %. On the territory of the Wildlife area there arecoenopopulations of 28 species, included in the Red Lists of the Rostov Region and the Russian Federation, as well as 57species included in the IUCN Red List. Floristic representativeness of GPZ «Gornenskiy» in relation to flora of Rostovregion is 25.4 %.

Geographical features of forest vegetation reflected at the level of the lower-rank syntaxa (evidence from the Russian part of the Upper Dnieper basin)

2017 ◽  
pp. 94-108 ◽  
Author(s):  
Yu. A. Semenishchenkov
Keyword(s):  
Forest Vegetation ◽  
East European Plain ◽  
Early 20Th Century ◽  
Suggested Approach ◽  
Central European ◽  
Classification Schemes ◽  
East European ◽  
Lower Rank ◽  
Geographical Variations ◽  
European Part Of Russia

Phytogeographical features of forest vegetation at the level of lower-rank syntaxa were being discussed in literature since the early 20th century (Cajander, 1903; Sukachev, 1926; Braun-Blanquet, 1964; Kral et al., 1975; Kleopov, 1990; Bulokhov, 2003; Ellenberg, 2009), however, phytocoenologists still have no uniform interpretation and geographical maintenance of lower classification units. Forest vegetation of the European part of Russia is well studied according to Braun-Blanquet approach with association as a system of geographical subassociations. The paper offers the approaches to the reflection of geographical variations of the natural forest vegetation in the basin of the Upper Dnieper (central part of the East European Plain) at the level of lower-rank syntaxa The xeromesophytic oak woods in the basin of the Upper Dnieper belong to the East European ass. Lathyro nigri–Quercetum roboris Bulokhov et Solomeshch 2003. Floristic differentiation of this association from the similar Central European ass. Potentillo-Quercetum is given. These two associations have large blocks of geographically significant differential species that does not allow to consider them as a part of one association. The suggested approach allows to define the chorological content of units of lower syntaxonomical ranks and make regional classification schemes comparable to each other.

scholarly journals Eastern Europe’s “Transitional Industry”?: Deconstructing the Early Streletskian

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
R. Dinnis ◽  
A. Bessudnov ◽  
N. Reynolds ◽  
T. Devièse ◽  
A. Dudin ◽  
...  
Keyword(s):  
Modern Human ◽  
East European Plain ◽  
Upper Palaeolithic ◽  
Radiocarbon Dates ◽  
East European ◽  
Archaeological Material ◽  
Younger Age ◽  
Layer V ◽  
Precise Relationship ◽  
Early Upper

AbstractThe Streletskian is central to understanding the onset of the Upper Palaeolithic on the East European Plain. Early Streletskian assemblages are frequently seen as marking the Neanderthal-anatomically modern human (AMH) anthropological transition, as well as the Middle-to-Upper Palaeolithic archaeological transition. The age of key Streletskian assemblages, however, remains unclear, and there are outstanding questions over how they relate to Middle and Early Upper Palaeolithic facies. The three oldest Streletskian layers—Kostenki 1 Layer V, Kostenki 6 and Kostenki 12 Layer III—were excavated by A. N. Rogachev in the mid-20th century. Here, we re-examine these layers in light of problems noted during Rogachev’s campaigns and later excavations. Layer V in the northern part of Kostenki 1 is the most likely assemblage to be unmixed. A new radiocarbon date of 35,100 ± 500 BP (OxA- X-2717-21) for this assemblage agrees with Rogachev’s stratigraphic interpretation and contradicts later claims of a younger age. More ancient radiocarbon dates for Kostenki 1 Layer V are from areas lacking diagnostic Streletskian points. The Kostenki 6 assemblage’s stratigraphic context is extremely poor, but new radiocarbon dates are consistent with Rogachev’s view that the archaeological material was deposited prior to the CI tephra (i.e. >34.3 ka BP). Multiple lines of evidence indicate that Kostenki 12 Layer III contains material of different ages. Despite some uncertainty over the precise relationship between the dated sample and diagnostic lithic material, Kostenki 1 Layer V (North) therefore currently provides the best age estimate for an early Streletskian context. This age is younger than fully Upper Palaeolithic assemblages elsewhere at Kostenki. Other “Streletskian” assemblages and Streletskian points from younger contexts at Kostenki are briefly reviewed, with possible explanations for their chronostratigraphic distribution considered. We caution that the cultural taxon Streletskian should not be applied to assemblages based simply on the presence of bifacially worked artefacts.

scholarly journals Giant otter Pteronura brasiliensis density and abundance in Llanos Orientales de Colombia in the Orinoco basin

Oryx ◽  
2020 ◽  
pp. 1-4
Author(s):  
Germán Garrote ◽  
Beyker Castañeda ◽  
Jose Manuel Escobar ◽  
Laura Pérez ◽  
Brayan Marín ◽  
...  
Keyword(s):  
South America ◽  
Population Size ◽  
20Th Century ◽  
Conservation Status ◽  
Species Conservation ◽  
Iucn Red List ◽  
Red List ◽  
Recreational Fishing ◽  
Pteronura Brasiliensis ◽  
Direct Counts

Abstract The giant otter Pteronura brasiliensis, categorized as Endangered on the IUCN Red List, was once widely distributed throughout South America. By the middle of the 20th century the giant otter had become locally extinct along the main rivers of the Orinoco basin. Although some populations seem to have recovered, the paucity of information available does not permit a full evaluation of the species' conservation status. The objective of this study was to estimate the abundance and density of the giant otter population along the Orinoco river in the municipality of Puerto Carreño, Vichada, Colombia, where there is important commercial and recreational fishing. Thirty-nine linear km were surveyed, repeatedly, with a total of 315 km of surveys. Population size was estimated by direct counts of individuals. All individuals detected were photographed and identified individually from their throat pelage patterns. In total, 30 otters were identified, giving a minimum density of 0.77 individuals per km, one of the highest reported for the species in Colombia. Given the high density in this well-developed area, our results highlight the importance of this population for the conservation of the species.

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