scholarly journals Ecological and coenotic groups of Orenburg Region vascular plants flora and biotopes phytoindication

2020 ◽  
Vol 9 (4) ◽  
pp. 109-120
Author(s):  
Nazar Nikolayevich Nazarenko ◽  
Sergei Mikhailovich Pohlebaev ◽  
Aleksandr Vladimirovich Malaev ◽  
Irina Anatolyevna Tretyakova ◽  
Askhat Koblanovich Khodzhayev

The expert and statistical assessment of ecological and coenotic groups of Orenburg Region vascular plants flora has been done for A.L. Belgards coenomorphs scheme and scheme of vascular plants flora of temperate forest zone of European Russia. The regimes of principal ecological factors have identified for detected groups of flora. Both suggested schemes of groups give adequate and similar assessment of biotopes, proposed groups of Orenburg Region vascular plants flora are identified in phytometer scales space definitely and its groups can used for regional assessment of biotopes. It has been established, that steppe coenomorph has extensive coenotic amplitude in Orenburg Region conditions and make petrophilic, chasmophilic, mountain and semi-desert vegetation elements also. Sylvant coenomorph has formed boreal and nemoral sciophytes and heliosciophytes and coenotic group of semiarid steppe forests has not specific biotopic and coenotic value. Pratal coenomorph has been made up humidity-meadow flora, dry-meadow coenotic group is not specific. For Orenburg Region is recommends using unite pratal (meadow) and paludal coenomorphs and separation coenotic group of oligotrophic bogs and ruderal coenomorph, the separation of mountain coenotic group is not confirmed statistical. The best assessment of ecological flora of region are realize by combined coenomorphs and coenotic group schemes approach at the same time. It has been established methodical problems of statistical methods using by phytoindication, problems of transitional coenotic groups and problem of wood species assessment in phytometer scales, which are require further researches.

2018 ◽  
Vol 6 ◽  
pp. 31-44 ◽  
Author(s):  
Giuseppe Fenu ◽  
Mohamed Abdelaal ◽  
Gianluigi Bacchetta ◽  
Luciano Bongiorni ◽  
Annalena Cogoni ◽  
...  

In this contribution, the conservation status assessment of four vascular plants according to IUCN categories and criteria are presented. It includes the assessment ofEpipactismaricae(Croce, Bongiorni, De Vivo & Fori) Presser & S.Hertel at global level, and the regional assessment ofCerintheretortaSm. (Italy), PlatantherakuenkeleiH.Baumannsubsp.kuenkelei (Europe) andTyphaelephantinaRoxb. (Egypt).


Aerobiologia ◽  
2014 ◽  
Vol 31 (2) ◽  
pp. 219-238 ◽  
Author(s):  
Irena Agnieszka Pidek ◽  
Anneli Poska ◽  
Bogusław Michał Kaszewski

2014 ◽  
Vol 63 (4) ◽  
pp. 296-300 ◽  
Author(s):  
Hyun-Su Hwang ◽  
Seung-Hun Son ◽  
Hojeong Kang ◽  
Shin-Jae Rhim

2015 ◽  
Vol 116 ◽  
pp. 15-27 ◽  
Author(s):  
Petr Kuneš ◽  
Helena Svobodová-Svitavská ◽  
Jan Kolář ◽  
Mária Hajnalová ◽  
Vojtěch Abraham ◽  
...  

1994 ◽  
Vol 26 (2) ◽  
pp. 347-374
Author(s):  
Peter L. Blasenheim

The growth of a transportation system in Minas Gerais, especially the construction of a rail network in the province's booming coffee region, the Zona da Mata (the Forest Zone) in the late Empire, is an important chapter in the state's history. A close look at railroads in the Mata and in Minas tells us much about politics and the power and influence of certain groups, particularly planters and planter-politicians. Conflicts over railroad concessions provoked much rivalry within the Mata, but all mineiros agreed that transportation was the most important issue of the day. Meanwhile, flumimnses and paulistas were more preoccupied with the labour crisis. Hindsight permits us to say that transportation is not the key to understanding the development of Minas, at least not to the extent that contemporaries thought it was. Ecological factors, labour conditions and the onset of the national overproduction crisis in 1896 had more to do with the rise and fall of coffee exports than did railroads. However, coffee planters from the wealthy Mata and other mineiros from the province's less prosperous regions always credited railroads with the good things that went with economic development.


2014 ◽  
Vol 10 (1) ◽  
pp. 73-141
Author(s):  
Bożena Durska

In the years 1969-1970 the parasitie mycoflora of plants occurring in the littoral of 51 lakes of the Olsztyn and Mrągowo lake distriets and inthe Land of Great Lakes was examined. 132 species of parasitic fungi on the 150 vascular plants species were found, 6 of them for the first time in Poland, and 9 on hosts hitherto not observed in Poland. The influence of ecological factors such as the zone of the littoral, the position and irradiation of the coast etc. on the occurrence of pathogens was noted. The effect of some pathogenes on the transpiration, level of nitrogen and phosphorus, calorific value and yield of host plants wasalso examined, maily for <i>Phragmites communis</i> Trin.


2017 ◽  
Vol 4 ◽  
pp. 61-71
Author(s):  
Giuseppe Fenu ◽  
Giulio Ferretti ◽  
Matilde Gennai ◽  
Agustín Lahora ◽  
Antonio J. Mendoza-Fernández ◽  
...  

In this contribution, the conservation status assessments of three vascular plants are presented following to IUCN categories and criteria. It includes the assessment at global level of Saxifragacaprariae Mannocci, Ferretti, Mazzoncini &amp; Viciani and S.montis-christi Mannocci, Ferretti, Mazzoncini &amp; Viciani and the regional assessment of Halocnemumcruciatum (Forssk.) Tod. (Spain).


2020 ◽  
Vol 48 (2) ◽  
pp. 14-21
Author(s):  
N. L. Morgunova

I describe a rare artifact—a staff with a zoomorphic finial, carved from the curved part of an elk antler. It was found in 1982 on a bank of the Tok River, in the western Orenburg region. The artifact was in a seated burial, discovered by chance. The archaeological context is described, and a cultural and chronological attribution is proposed. It is concluded that the burial is associated with the Early Neolithic Elshanka culture. Similar staffs were found mostly in Mesolithic and Neolithic burials in the forest zone of Eastern Europe. Radiocarbon analyses suggest that seated burials with zoomorphic antler staffs date to the interval from the 6th to the early 3rd millennium BC. The peculiar feature of the Pushkinsky specimen is that it likely depicts a horse rather than an elk, probably because the economy in the steppe and forest-steppe focused on horse hunting. Such artifacts were apparently ritual, and the practice could have originated in the steppe and forest-steppe from whence it spread to the forest zone.


2000 ◽  
Vol 27 (3) ◽  
pp. 225-228
Author(s):  
ALF OREDSSON

In Sweden, public awareness of change in the environment has increased in recent decades (Gillberg 1999). An important tool which contributed to an understanding of how the flora is affected by changes in the environment was created by Ellenberg (1974). Six ecological factors, namely light, temperature, continentality, moisture, reaction and nitrogen, were each divided into 9 (in the case of moisture 12) so-called indicator values. A species given a low value occurs mainly where the factor is less pronounced, and vice versa, species in light class 1 prefer full shadow, 5 half shadow, and 9 full light.


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