Changes in the Activity of Higher Vascular Plants Species in the Ob Plateau Landscapes (Altai Krai, Russia) Due to Anthropogenic Transformation

2017 ◽  
pp. 147-157 ◽  
Author(s):  
D. V. Zolotov ◽  
D. V. Chernykh ◽  
R. Yu. Biryukov ◽  
D. K. Pershin
Keyword(s):  
Vascular Plants ◽  
Anthropogenic Transformation

scholarly journals SYNANTROPIZATION FLORA OF PRIPYAT POLESIE AS AN INDICATOR OF ITS ANTHROPOGENIC TRANSFORMATION

2018 ◽  
Vol 63 (3) ◽  
pp. 276-285
Author(s):  
A. M. Mialik ◽  
V. I. Parfenov
Keyword(s):  
Vascular Plants ◽  
Natural Ecosystems ◽  
Anthropogenic Transformation ◽  
Natural Region ◽  
Geographic Structure ◽  
Degree Of Naturalization ◽  
Synanthropic Species ◽  
Wide Range ◽  
Mediterranean Origin ◽  
Natural Flora

The article deals with the peculiarities of the synanthropic component of the flora of the Pripyat Polesie – a natural region located in the southern part of Belarus. It is represented by 810 species of vascular plants that can grow in disturbed human habitats. Among the synanthropic species, 563 taxons (69.5 % of their total number) are adventitious (or anthropophytes), and 247 (or 30.5 %) are aboriginal (apophytes) in relation to the flora under consideration. The geographic structure of the apophytes of the flora of Pripyat Polesie indicates their wide range and weak zonal confinement. Anthropophytes have a more complex genesis with respect to the time and manner of skidding, as well as the degree of naturalization in the natural ecosystems of the southern part of Belarus. They are based on a group of plant species of ancient mediterranean origin. The biomorphological features of the synanthropic species, as well as their relation to environmental factors such as moisture and soil fertility, show that in the process of synanthropization and anthropogenic transformation, the natural flora and natural vegetation cover acquire features characteristic of phytophores in more southern areas.

A Scanning Electron Microscopic Study of Pro-Vascular Cellular Morphology in Chaetophora Incressata

1985 ◽  
Vol 43 ◽  
pp. 638-639
Author(s):  
A. E. Hotchkiss ◽  
A. T. Hotchkiss ◽  
R. P. Apkarian
Keyword(s):  
Green Algae ◽  
Vascular Plants ◽  
Vascular System ◽  
Higher Plants ◽  
Wall Structure ◽  
Electron Microscopic ◽  
Physiological Processes ◽  
Scanning Electron Microscopic Study ◽  
Scanning Electron Microscopic ◽  
Scanning Electron

Multicellular green algae may be an ancestral form of the vascular plants. These algae exhibit cell wall structure, chlorophyll pigmentation, and physiological processes similar to those of higher plants. The presence of a vascular system which provides water, minerals, and nutrients to remote tissues in higher plants was believed unnecessary for the algae. Among the green algae, the Chaetophorales are complex highly branched forms that might require some means of nutrient transport. The Chaetophorales do possess apical meristematic groups of cells that have growth orientations suggestive of stem and root positions. Branches of Chaetophora incressata were examined by the scanning electron microscope (SEM) for ultrastructural evidence of pro-vascular transport.

A history of botanical collections in the Luangwa Valley, Zambia

1998 ◽  
Vol 25 (2) ◽  
pp. 283-291
Author(s):  
P.S.M. PHIRI ◽  
D.M. MOORE
Keyword(s):  
Eighteenth Century ◽  
Environmental Impact ◽  
Impact Assessment ◽  
Vascular Plants ◽  
Central Africa ◽  
Peak Activity ◽  
Historical Account ◽  
History Of ◽  
The 1960S ◽  
Made In

Central Africa remained botanically unknown to the outside world up to the end of the eighteenth century. This paper provides a historical account of plant explorations in the Luangwa Valley. The first plant specimens were collected in 1897 and the last serious botanical explorations were made in 1993. During this period there have been 58 plant collectors in the Luangwa Valley with peak activity recorded in the 1960s. In 1989 1,348 species of vascular plants were described in the Luangwa Valley. More botanical collecting is needed with a view to finding new plant taxa, and also to provide a satisfactory basis for applied disciplines such as ecology, phytogeography, conservation and environmental impact assessment.

Differentiation of new coenomorph in context of the Belgard’s ecomorph system development

2017 ◽  
Vol 28 (1-2) ◽  
pp. 28-35 ◽  
Author(s):  
B. A. Baranovski
Keyword(s):  
Environmental Factors ◽  
Plant Species ◽  
Vascular Plants ◽  
Deciduous Forest ◽  
System Development ◽  
Vascular Plant ◽  
Tabular Form ◽  
Ecological Scales ◽  
The One ◽  
Different Levels

Nowadays, bioecological characteristics of species are the basis for flora and vegetation studying on the different levels. Bioecological characteristics of species is required in process of flora studying on the different levels such as biotopes or phytocenoses, floras of particular areas (floras of ecologically homogeneous habitats), and floras of certain territories. Ramensky scale is the one of first detailed ecological scales on plant species ordination in relation to various environmental factors; it developed in 1938 (Ramensky, 1971). A little later (1941), Pogrebnyak’s scale of forest stands was proposed. Ellenberg’s system developed in 1950 (Ellenberg, 1979) and Tsyganov’s system (Tsyganov, 1975) are best known as the systems of ecological scales on vascular plant species; these systems represent of habitat detection by ecotopic ecomorphs of plant species (phytoindication). Basically, the system proposed by Alexander Lyutsianovich Belgard was the one of first system of plant species that identiified ectomorphs in relation to environmental factors. As early as 1950, Belgard developed the tabulated system of ecomorphs using the Latin ecomorphs abbreviation; he also used the terminology proposed in the late 19th century by Dekandol (1956) and Warming (1903), as well as terminology of other authors. The article analyzes the features of Belgard’s system of ecomorphs on vascular plants. It has certain significance and advantages over other systems of ecomorphs. The use of abbreviated Latin names of ecomorphs in tabular form enables the use shortened form of ones. In the working scheme of Belgard’s system of ecomorphs relation of species to environmental factors are represented in the abbreviated Latin alphabetic version (Belgard, 1950). Combined into table, the ecomorphic analysis of plant species within association (ecological certification of species), biotope or area site (water area) gives an explicit pattern on ecological structure of flora within surveyed community, biotope or landscape, and on environmental conditions. Development and application by Belgrard the cenomorphs as «species’ adaptation to phytocenosis as a whole» were completely new in the development of systems of ecomorphs and, in this connection, different coenomorphs were distinguished. Like any concept, the system of ecomorphs by Belgard has the possibility and necessity to be developed and added. Long-time researches and analysis of literature sources allow to propose a new coenomorph in the context of Belgard’s system of ecomorphs development: silvomargoant (species of forest margin, from the Latin words margo – edge, boundary (Dvoretsky, 1976), margo – margin, ad margins silvarum – along the deciduous forest margins). As an example of ecomorphic characterization of species according to the system of ecomorphs by Belgard (when the abbreviated Latin ecomorph names are used in tabular form and the proposed cenomorph is used), it was given the part of the table on vascular plants ecomorphs in the National Nature Park «Orelsky» (Baranovsky et al). The Belgard’s system of ecomorphs is particularly convenient and can be successfully applied to data processing in the ecological analysis of the flora on wide areas with significant species richness, and the proposed ecomorph will be another necessary element in the Belgard’s system of ecomorphs. 

Vascular plants and a brief history of the Kiowa and Rita Blanca National Grasslands

2009 ◽  
Author(s):  
Donald L. Hazlett ◽  
Michael H. Schiebout ◽  
Paulette L. Ford
Keyword(s):  
Vascular Plants ◽  
History Of

Flora of Vascular Plants on Mt. Gyemyeong Chungju-si

2004 ◽  
Vol 2 (1_2) ◽  
pp. 1-26
Author(s):  
Gyu Young CHUNG ◽  
Jung Soo SUH ◽  
Mi Suk KIM ◽  
Gi Heum NAM ◽  
Jin Hyup PAEK
Keyword(s):  
Vascular Plants
Sign in / Sign up

Export Citation Format

Share Document