scholarly journals La pteridoflora del Parque Nacional los Mármoles, Hidalgo, México

2019 ◽  
Vol 84 ◽  
pp. 35
Author(s):  
Said Ramírez Cruz ◽  
Arturo Sánchez González ◽  
Daniel Tejero Díez
Keyword(s):  
Plant Communities ◽  
Protected Area ◽  
National Park ◽  
The State ◽  
Different Types

The objective of the present study was to document the richness and distribution of the pteridoflora in the plant communities of the National Park Los Mármoles, the second largest natural protected area and the largest in Hidalgo. The study was based on exhaustive collection of specimens in different types of vegetation. Eleven families, 28 genera and 65 species of ferns were found, and one family with six species of lycopods. Seven taxa not previously mentioned for the state of Hidalgo are cited: <em>Anemia mexicana var. makrinii, Argyrochosma palmeri, Cheilanthes spiculata, Pecluma alfredii var. cupreolepis, Polypodium puberulum, Selaginella sartorii and S. wrightii. </em>

scholarly journals State of Cenopopulations of Trommsdorffia ciliata (Thunb.) H.S. Pak (Asteraceae) in the Plant Communities of the Lower Reaches of the Ussuri River

2021 ◽  
Vol 895 (1) ◽  
pp. 012031
Author(s):  
T N Motorykina
Keyword(s):  
Plant Communities ◽  
Rare Species ◽  
Protected Area ◽  
The State ◽  
Absolute Maximum ◽  
Age Group ◽  
Herbaceous Layer ◽  
Khabarovsk Krai ◽  
Favorable Conditions ◽  
Adult Plants

Abstract The paper presents the results of studying the structure and state of four cenopopulations of the rare species Trommsdorffia ciliata (Thunb.) H.S. Pak in the valley of the lower reaches of the Ussuri River. The density of the studied cenopopulations is from 8 to 27 ind./m2. All studied cenopopulations are normal and incomplete. The absence or small number of juveniles in the ontogenetic spectrum of the studied cenopopulations is associated with a high projective cover of the herbaceous layer, which prevents the survival of this age group. According to the absolute maximum of ontogenetic groups of adult plants of all cenopopulations, Trommsdorffia ciliata are classified as young normal ones, where the maximum falls on individuals of the virginal state. An evaluation of population and organismic signs of the state of the studied cenopopulations showed that the most favorable conditions for the growth of Trommsdorffia ciliata are formed in a moist sedge-grass-herb meadow in the vicinity of Lonchakovo village. The measures for the protection of Trommsdorffia ciliata that are to include in the Red Book of the Khabarovsk krai (2019), to inhabit in a protected area and are to control the state of the known population of this species have been cited.

scholarly journals A Big Battle: The State vs. Indigenous People (Case Study in Jambi Province)

2019 ◽  
Vol 23 (1) ◽  
pp. 59
Author(s):  
M. Yusuf ◽  
Syafrial Syafrial
Keyword(s):  
Indigenous People ◽  
National Parks ◽  
Protected Area ◽  
National Park ◽  
The State ◽  
Park Management ◽  
Case Study Approach ◽  
Study Approach ◽  
Protection Area

The change in designation of Bukit Duabelas area into Bukit Duabelas National Park in Jambi province raises a conflict between the national park official who was ruling the zonation system in the national park and the Orang Rimba people who have lived there for many years. The decision of the protected area aims to preserve the life and culture of Orang Rimba. However, zoning rules in the field are interpreted as an effort to limit space and access to the forest resources for Orang Rimba who have traditionally utilized them. This research uses a case study approach to explore the dynamics of conflict on the protected area. The results of the study show that conflicts in national park management are very dynamic because of shifting disagreement about the protection area. The conflicts began with debates about the zoning system which led into the fight for access to the park resources which were contested over the concept of national parks and customary forests. This paper argues the battle over the national park was not only about contested natural resources but also was a fight for authority and power between the state and indigenous people over the concept of park management.

scholarly journals New records of Gerrhonotus parvus Knight & Scudday, 1985 (Squamata, Anguidae) in the state of Coahuila, México

Check List ◽  
2018 ◽  
Vol 14 (3) ◽  
pp. 523-528
Author(s):  
Javier Banda-Leal ◽  
David Lazcano ◽  
Carlos Barriga-Vallejo ◽  
Manuel Nevárez-de los Reyes
Keyword(s):  
Plant Communities ◽  
Protected Area ◽  
New Records ◽  
Pine Forest ◽  
The State ◽  
Nuevo Leon ◽  
Nuevo León

We document the first records of Gerrhonotus parvus in the state of Coahuila, México. From March 2012 to March 2017, 6 males and 2 females were found in pine forest and submontane scrubland plant communities in the Sierra de Zapalinamé Natural Protected Area, which is located in the municipalities of Saltillo and Arteaga. These records extend the known distribution of the species 28–44 km west of the nearest occurrences in the state of Nuevo León.

STUDYING OF TERSKO-SULAKSKAYA LOWLAND VEGETATION UNDER THE RESULTS OF GROUND-BASED RESEARCH AND AUTOMATED INTERPRETATION

1970 ◽  
pp. 29-32
Author(s):  
M. I. Dzhalalova ◽  
A. B. Biarslanov ◽  
D. B. Asgerova
Keyword(s):  
Plant Communities ◽  
Satellite Imagery ◽  
Vegetation Cover ◽  
Anthropogenic Impacts ◽  
Species Abundance ◽  
Remote Sensing Data ◽  
Indigenous Communities ◽  
The State ◽  
Anthropogenic Factors ◽  
Internet Resource

The state of plant communities in areas located in the Tersko-Sulak lowland was studied by assessing phytocenotic indicators: the structure of vegetation cover, projective cover, species diversity, species abundance and elevated production, as well as automated decoding methods. There are almost no virgin soils and natural phytocenoses here; all of them have been transformed into agrocenoses (irrigated arable lands and hayfields, rice-trees and pastures). The long-term impact on pasture ecosystems of natural and anthropogenic factors leads to significant changes in the indigenous communities of this region. Phytocenoses are formed mainly by dry-steppe types of cereals with the participation of feather grass, forbs and ephemera, a semi-desert haloxerophytic shrub - Taurida wormwood. At the base of the grass stand is common coastal wormwood and Taurida wormwood - species resistant to anthropogenic influences. Anthropogenic impacts have led to a decrease in the number of species of feed-rich grain crops and a decrease in the overall productivity of pastures. Plant communities in all areas are littered with ruderal species. The seasonal dynamics of the land cover of the sites was estimated by the methods of automatic decoding of satellite images of the Landsat8 OLI series satellite for 2015, dated by the periods: spring - May 20, summer - July 23, autumn - October 20. Satellite imagery data obtained by Landsat satellite with a resolution in the multispectral image of 30 m per pixel, and in the panchromatic image - 10 m per pixel, which correspond to the requirements for satellite imagery to assess the dynamics of soil and vegetation cover. Lower resolution data, for example, NDVI MODIS, does not provide a reliable reflection of the state of soil and vegetation cover under arid conditions. In this regard, remote sensing data obtained from the Internet resource https://earthexplorer.usgs.gov/ was used.

Mosses of the State Nature Reserve "Kurgalskiy" (Leningrad Region)

2019 ◽  
Vol 53 (2) ◽  
pp. 369-384
Author(s):  
G. Ya. Doroshina ◽  
E. G. Ginzburg ◽  
L. E. Kurbatova
Keyword(s):  
Protected Area ◽  
Nature Reserve ◽  
The State ◽  
Leningrad Region ◽  
Protected Species ◽  
State Nature Reserve ◽  
First Time ◽  
State Nature ◽  
Area Data

The paper provides the data on mosses of the State Nature Reserve ”Kurgalskiy” situated in the Kingisepp District of the Leningrad Region. The list includes 136 species. Among them Plagiothecium nemorale is new for the Leningrad Region, 83 species are recorded for the first time for the protected area, 12 species are protected in the region, Aulacomnium androgynum is protected in Russia. Of the protected species, Plagiothecium latebricola is recorded for the first time for the protected area. Data on habitats, substrates and frequency of every species are provided.

Atomization of Liquids by Means of a Rotating Cup

1950 ◽  
Vol 17 (2) ◽  
pp. 145-153 ◽  
Author(s):  
J. O. Hinze ◽  
H. Milborn
Keyword(s):  
Working Conditions ◽  
Drop Size ◽  
Film Formation ◽  
Angular Speed ◽  
The State ◽  
Experimental Results ◽  
Drop Formation ◽  
Dimensionless Groups ◽  
Different Types ◽  
Centrifugal Action

Abstract Liquid, supplied through a stationary tube to the inner part of a rotating cup widening toward a brim, flows viscously in a thin layer toward this brim and is then flung off, all by centrifugal action. The flow within this layer and the disintegration phenomena occurring beyond the brim have been studied, experimentally as well as theoretically. A formula has been derived for the thickness and for the radial velocity of the liquid layer within the cup, which proved to agree reasonably well with experimental results. Three essentially different types of disintegration may take place around and beyond the edge of the cup designated, respectively, by: (a) the state of direct drop formation; (b) the state of ligament formation; and (c) the state of film formation. Which one of these is realized depends upon working conditions. Transition from state (a) into (b), or of state (b) into state (c) is promoted by an increased quantity of supply, an increased angular speed, a decreased diameter of the cup, an increased density, an increased viscosity, and a decreased surface tension of the liquid. The experimental results have been expressed in relationships between relevant dimensionless groups. For the state of ligament formation a semiempirical relationship has been derived between the number of ligaments and dimensionless groups determining the working conditions of the cup. Results of drop-size measurements made for the state of ligament formation as well as for the state of film formation show that atomization by mere rotation of the cup is much more uniform than commonly achieved with pressure atomizers.

Regimul nutrienților în zona Parcului National Orhei

2020 ◽  
Author(s):  
Dumitru Drumea ◽  
◽  
Svetlana Debelaia-Buracinschi ◽  
Keyword(s):  
Wetland Restoration ◽  
National Park ◽  
The State ◽  
State Of Water ◽  
Functional Zones ◽  
Key Issues ◽  
Water Ecosystems

Nutrogen and phopsphorus present one of the key issues in the management of the territory of the National Park Orhei. Mentioned territory can be used as a refference one for the identification of the impacts of nutrients originated from different functional zones on the state of water ecosystems. Wetland restoration activities are recognised as a key ones for the maintenance of nutrient balaces in the region and main catacteristics of the components of environment in the area of the national park are presented.

INFLUENCE OF HERACLEUM SOSNOWSKYI MANDEN. ON BIODIVERSITY OF VASCULAR PLANTS OF THE PROTECTED AREA «LIPOVAYA GORA» (PERM)

2020 ◽  
pp. 272-279
Author(s):  
D. N. Tiunov ◽  
◽  
E. G. Efimik ◽  
Keyword(s):  
Plant Species ◽  
Plant Communities ◽  
Protected Area ◽  
Vascular Plants ◽  
Rapid Development ◽  
Projective Cover ◽  
Seed Productivity ◽  
Heracleum Sosnowskyi ◽  
Rapid Spread

The problem of invasion of Sosnowsky hogweed (Heracleum sosnowskyi Manden.) In the Lipovaya Gora SPNA in Perm is considered. A map of distribution of hogweed cenopopulations in the protected area is presented. The results of the influence of the invasion of Sosnovsky hogweed on the biodiversity of vascu-lar plants of some plant communities are presented. It was revealed that the invasion of hogweed into phytocenoses of the Lipovaya Gora protected area leads to a decrease in the biodiversity of vascular plants by about 26.4% (up to 12 plant species). The ways of introduction of cow parsnip into the communities of the protected area are considered. High seed productivity, high projective cover, reaching in some cases 100%, high phytomass, the presence of dormant seeds, rapid development in spring, and high anthropo-genic load on the territory determine the rapid spread of H. sosnowskyi.

New species of flea-toad, genus Brachycephalus (Anura: Brachycephalidae) from the Atlantic Forest of Espírito Santo, Brazil

Zootaxa ◽  
2021 ◽  
Vol 5068 (4) ◽  
pp. 517-532
Author(s):  
DIEGO ALMEIDA-SILVA ◽  
THIAGO SILVA-SOARES ◽  
MIGUEL TREFAUT RODRIGUES ◽  
VANESSA KRUTH VERDADE
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Protected Area ◽  
The State ◽  
Southeastern Brazil ◽  
Espírito Santo ◽  
The Third ◽  
Skin Smooth ◽  
Espirito Santo ◽  
A New Species

We describe a new species of dull-colored flea-toad, genus Brachycephalus, from the Atlantic Forest of Caparaó mountains in southeastern Brazil. The new species is characterized by its diminutive size, “leptodactyliform” body, brownish color with an inverted V-shaped dark mark on dorsum, skin smooth, hyperossification and dorsal shield absent, linea masculinea absent, Fingers I and IV vestigial, Toe I externally absent, Toe II reduced but functional, Toes III and IV with pointed tips, Toe V vestigial, and ventral color uniformly brown. It is a leaf litter dweller, known only from type locality in the humid forests on the eastern slopes of Parque Nacional do Caparaó mountains, a protected area in the states of Espírito Santo and Minas Gerais, southeastern Brazil. It is the third flea-toad occurring in the state of Espírito Santo recovered as sister to all other Brachycephalus distributed from the state of São Paulo northward in the Atlantic Forest.  

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