Vegetation dynamics in the Voronezh Nature Reserve in view of the its landscape structure

2013 ◽  
pp. 76-88
Author(s):  
E. A. Starodubtseva ◽  
L. G. Khanina ◽  
V. E. Smirnov
Keyword(s):  
Vegetation Dynamics ◽  
Nature Reserve ◽  
Species Abundance ◽  
Vegetation Diversity ◽  
Phytosociological Relevés ◽  
Exogenous Factors ◽  
Autogenic Succession ◽  
Landscape Units ◽  
Tree Falls ◽  
Dynamics Of Vegetation

We studied 80-years vegetation dynamics of the Voronezh Nature Reserve. Dynamics of vegetation was evaluated by analyzing 1051 phytosociological relevés collected at temporal plots that were located in different landscape units. We found out that meadow — pine forest vegetation was widely distributed in the Reserve in 1930s except the floodplains. It was caused by the intensive human impact before the preservation of this territory. We defined the landscape units, where autogenic succession or allogenic succession has been prevailing since 1930s. It is shown that autogenic succession leads to the increase of the nemoral species abundance in all vegetation layers of plant communities; soil fertility increased and light decreased during the succession. Periodic fires, mass tree-falls, and mowing are the main factors caused the allogenic succession in the Reserve. It is proved that high vegetation diversity of the Reserve is currently maintained by exogenous factors.

scholarly journals Functional landscape of Sila Grande (Calabria, Italy): Vegetation dynamism and synphytosociology

2019 ◽  
Vol 2 ◽  
Author(s):  
Dimitar Uzunov ◽  
Carmen Gangale
Keyword(s):  
Spatial Data ◽  
Field Studies ◽  
Point Of View ◽  
Conservation Strategies ◽  
Beech Forests ◽  
Vegetation Diversity ◽  
Bibliographic Analysis ◽  
Phytosociological Relevés ◽  
Dynamics Of Vegetation

The aim of this presentation is to present practical problems related to the land management and biodiversity conservation, using methods of landscape analysis through approaches of synphytosociology. The study area was Sila Grande (Calabria, S Italy), for which an exhaustive bibliographic analysis was carried out and cartographic materials were collected. Spatial data and different themes were organized in a Geographic Information System (GIS), proceeding with a first segmentation (environmental patches identification) based on geomorphologic, geological land use, bioclimatic, etc. In addition, an analysis of mountainous plant communities was carried out, based on 1047 phytosociological relevés (554 original) in order to investigate paleo-geographic, ecological and anthropic factors that influence floral and vegetation diversity. Data from literature and field studies (1998–2013) have been critically analyzed in order to clarify the syntaxonomic position of the main vegetation types. Twenty-six new syntaxa (associations and subassociations) are proposed and an updated sintaxonomic scheme is presented. Querco-Fagetea and Molinio-Arrhenetheretea are the most represented classes in the area due to the bioclimatic factors. Wet communities (Isoeto-Nanojuncetea, Nardetea strictae, ScheuchzerioCaricetea fuscae, Montio-Cardaminetea and Littorelletea uniflorae) have a significant biogeographical importance due to a rich group of boreal species. This “Nordic imprint” of the flora, vegetation and landscape is of special interest and its peculiarities are analyzed from ecological and biogeographycal point of view. Mediterranean and sub-Mediterranean elements prevail in the dry grasslands and shrublands. Some problems about the dynamics of vegetation are discussed such as the role of black pine communities and their relations with beech forests, trying also to provide clues for conservation strategies and management.

scholarly journals Vegetation Diversity of Screes and Taluses of The Pamir and South-Western Tian Shan in Middle Asia

2021 ◽  
Author(s):  
Arkadiusz Nowak ◽  
Sebastian Świerszcz ◽  
Sylwia Nowak ◽  
Marcin Nobis
Keyword(s):  
Species Composition ◽  
Arid Zone ◽  
Field Studies ◽  
Vegetation Diversity ◽  
Plant Associations ◽  
Middle Asia ◽  
Recent Developments ◽  
Phytosociological Relevés ◽  
High Degree ◽  
Tian Shan

AbstractThis paper presents the results of phytosociological research on scree vegetation of the Pamir and south-western Tian Shan. We collected 222 phytosociological relevés during field studies conducted in 2015–2019, applying the Braun-Blanquet approach. We identified 21 plant communities on mobile and stabilized screes of colluvial cones, aprons and fans, inhabiting mainly the montane and alpine belts in several ranges (e.g. Peter the First, Alichur, Shugnan, Shachdarian, Darvaz, Rushan, Vanch, Fergana, Kyrgyz and Terskey ranges). As a result we provide the first comprehensive hierarchical syntaxonomic synopsis of scree communities at montane and alpine elevations in the eastern Middle Asia. The collected vegetation relevés represent the majority of the variation among the phytocoenoses of gravel, pebble, cobble and rock block slides and screes in the montane and alpine belts. As a result of field studies and Twinspan analyses, nine associations were identified on screes of the Pamir and western Tian Shan. All these communities were assigned to the Sileno brahuicae-Lactucetalia orientalis Nowak et al. 2021. Additionally, within the nitrophilous compact gravel screes one subassociation of Corydalidetum kashgaricae trigonelletosum gontscharovii was distinguished. In the most arid zone two additional plant associations and one subassociation were identified in gravelly semi-deserts zone. The main factors determining the species composition of the studied associations are scree mobility, rock particle size, elevation above sea level and slope inclination. Our research revealed considerable diversity of scree habitats of montane and alpine belts what might be astonishing regarding harsh environment of this mountainous territory. However, a great number of lineages that evolved here and particularly rich species pool of this habitat in Middle Asia facilitate remarkable diversity among vegetation of taluses and screes. The distinctiveness of species composition is additionally enhanced by high degree of endemism of chasmophytic habitats in the eastern part of Middle Asia. Despite recent developments, the prominent chasmophytic vegetation of Middle Asia still needs thorough studies focused on its relationship to semi-desert, tall-forb and petrophytic communities of high mountains of the Pamir, Hindu-Kush, Kunlun and Central Tian Shan.

Vegetation diversity of the two Dinaric karstic rivers in Bosnia and Herzegovina

Biologia ◽  
2016 ◽  
Vol 71 (7) ◽  
Author(s):  
Anđelka Lasić ◽  
Nenad Jasprica
Keyword(s):  
Plant Communities ◽  
Bosnia And Herzegovina ◽  
Vegetation Diversity ◽  
Plant Associations ◽  
Phytosociological Relevés

AbstractPlant communities were studied along two oligotrophic karstic rivers – Trebižat and Lištica – from 2007 to 2009. Based on 93 phytosociological relevés, using Braun–Blanquet methods, a total of 25 plant associations were recognised in the rivers and nearby surveyed area. These associations have been subordinated to 11 alliances, eight orders and six classes:

scholarly journals Phylogenetic Diversity of Plant Metacommunity of the Dnieper River Arena Terrace Within the ‘Dnieper-Orilskiy ’ Nature Reserve

2017 ◽  
Vol 36 (4) ◽  
pp. 352-365
Author(s):  
Olexander Zhukov ◽  
Olga Kunah ◽  
Yulia Dubinina ◽  
Dmitry Ganga ◽  
Galina Zadorozhnaya
Keyword(s):  
Phylogenetic Trees ◽  
Phylogenetic Diversity ◽  
Nature Reserve ◽  
Species Abundance ◽  
Remote Sensing Data ◽  
Principal Coordinate Analysis ◽  
Permutation Procedure ◽  
Additional Information ◽  
Plant Phylogeny ◽  
Steppe Meadow

Abstract This article presents the features of the phylogenetic organization of the plant communities of the Dnieper River terrace within the ‘Dnieper-Orilskiy’ Nature Reserve and the patterns of its spatial variation involving remote sensing data of the Earth’s surface. The research materials were collected in the period 2012−2016 from within the nature reserve. The research polygon is within the first terrace (arena) of the Dnieper valley. Sandy steppe, meadow, forest and marsh communities within the Protoch river floodplain and the Orlova ravine, as well as artificial pine plantations were the habitats present within the research polygon. The vegetation description was carried out on 10×10 m (100 m2) plots. A total of 94 geobotanical descriptions were made. Data on plant phylogeny was obtained by the Phylomatic service. Phylogenetic diversity of the communities was assessed by the Faith, Simpson and Shannon indices. Phylogenetic analysis was performed by means of a double principal coordinate analysis (DPCoA). The vegetation cover within the investigated polygon was represented by 189 species. Abundance Phylogenetic Deviation (APD) for the investigated metacommunity was evaluated to −0.53, which is statistically significantly different from random alternatives (p = 0.001). The APD negative value indicates that phylogenetic organization of the investigated metacommunity is overdispersed. The permutation procedure allowed us to establish that the eigenvalues of the DPCoA-axes obtained as a result of the real phylogenetic tree were significantly higher than their own number for the random phylogenetic trees for the first seven axes. This indicates that the first seven axes are useful for additional information on the ordination structure of the metacommunity.

scholarly journals PRIMARY INFORMATION ABOUT LICHENS OF THE “LEKSHMOKH” STATE NATURE RESERVE

2019 ◽  
Vol 30 (3-4) ◽  
pp. 38-49
Author(s):  
A.V Pchelkin ◽  
Keyword(s):  
National Park ◽  
Nature Reserve ◽  
Species Abundance ◽  
The State ◽  
Ecological Value ◽  
Arkhangelsk Region ◽  
Environmental Monitoring System ◽  
State Nature Reserve ◽  
Complex Landscape ◽  
State Nature

The state nature complex (landscape) nature reserve of regional importance “Lekshmokh” (Arkhangelsk region) was created on June 14, 2019. It adjoins the borders of the Kenozersky National Park. Its area is 25248.7 ha. The watershed territory of the reserve is extremely important for the ecological balance of the ecosystems of the Kenozersky National Park and the drainage basins of the Onega, Kena, Lacha, Lekshmozero and Kenozero lakes. During the course of their development, the marshes of the reserve and the forest-bog complexes located inside them and framing them formed a bog system unique to the Kargopol region in terms of floristic diversity. Until now, the lichenobiota of the Lekshmoh reserve has remained virtually unexplored. The purpose of this study is to study the lichens of the Lekshmokh reserve as important components of biota. During the primary survey of the State Nature Complex Lekshmokh reserve, 96 species of lichens were noted. For each species, abundance is given on a 5-point scale. Among the lichens of the reserve, two species from the Red Book of the Arkhangelsk Region are noted: Bryoria fremontii and Lobaria pulmonaria. A large number of types of indicators of air purity are growing in the reserve: Usnea, Bryoria, Evernia, etc. This indicates the ecological value of the reserve, located away from industrial centers. Based on the reserve, a background environmental monitoring system studies are possible.

scholarly journals Grazing Effects on Day Butterflies in a Mediterranean Woodland Ecosystem in Northern Israel

2020 ◽  
Author(s):  
Gad Ish Am ◽  
Talia Oron
Keyword(s):  
Endangered Species ◽  
Nature Reserve ◽  
Species Abundance ◽  
Similarity Index ◽  
Cattle Grazing ◽  
Grazing Management ◽  
Butterfly Species ◽  
Total Abundance ◽  
Species Similarity ◽  
Mediterranean Woodland

Abstract The effects of cattle grazing on biodiversity in Mediterranean woodlands are yet unknown. To assess these effects on diurnal butterflies, we conducted daytime surveys in the Mt. Meron nature reserve (northern Israel) in two habitats over two different years. In each habitat we chose one site that was grazed by cattle and, as a control, a similar but ungrazed site. Belt transects (5m wide), divided for 100m replications, were surveyed five times on ridges in 2015 (11 replications, 538 butterflies, 25 species), and nine times in valleys in 2016 (12 replications, 3,944 butterflies, 38 species). In both habitats, species similarity index between sites was high. Richness was higher in the ridge control and evenness was higher in the valley grazed site. In both habitats total abundance was ca. twofold higher in the control, and the abundance of woody affiliated butterflies was threefold higher in the control, probably due to overgrazing, which affects butterflies’ breeding niches. For batha polyphagous and oligophagous butterfly species, abundance was similar between the sites, and for a few of those, associated with increaser plants, it was even higher in the grazed sites. However, the batha monophagous species were significantly more abundant in the control. Monophagous and endangered species were found to be more sensitive to cattle grazing. We conclude that the current cattle grazing management in Mt. Meron reserve affects butterfly populations negatively. Therefore, we recommend more regulated grazing and early-season deferment precautions, along with designation of no-grazing areas in reserves.

scholarly journals Keanekaragaman dan Kemelimpahan Tumbuhan Paku di Cagar Alam Donoloyo sebagai Bahan Pengembangan Multimedia Interaktif Biologi di SMA

2020 ◽  
Vol 2 (2) ◽  
pp. 104
Author(s):  
Fitria Nur Hasanah
Keyword(s):  
High School ◽  
Research Method ◽  
Interactive Multimedia ◽  
Nature Reserve ◽  
Interactive Media ◽  
Species Abundance ◽  
Biology Teacher ◽  
Alternative Source ◽  
Quadrat Method

This study aims 1) to determine the index of species abundance, characteristics, morphology of ferns in the nature reservearea of Donoloyo, Watusomo, slogohimo 2) to obtain an alternative source of learning biology in high school about the abundance of ferns based on interactive multimedia in the form CD 3) to find out the multimedia validation of interactive learning biology of ferns. This research method is descriptive quantitative exploration, the instrument used is a direct observation technique with the quadrat method and validation sheet. The results of the study showed that in the Donoloyo nature reserve, 12 species of ferns were found in 2 classes and 5 families which showed in the medium category. Observations of ferns are used as learning resources in the form of interactive multimedia learning. The quality of interactive media assessed by 3 validators namely material experts, media experts, and biology teacher get a percentage >80% (very valid) interactive multimedia is ready to be used as a learning media for biology in high school.

FORMATION OF LANDSCAPE DIVERSITY IN THE SUBNIVAL-NIVAL BELT OF THE AZERBAIJANI PART OF THE GREATER CAUCASUS

2021 ◽  
Vol 4 (1) ◽  
pp. 121-131
Author(s):  
I.I. Mardanov ◽  
Keyword(s):  
Large Scale ◽  
Landscape Diversity ◽  
Aerial Photographs ◽  
High Mountain ◽  
Economic Activities ◽  
Greater Caucasus ◽  
Mountainous Regions ◽  
Relief Formation ◽  
Exogenous Factors ◽  
Landscape Units

This article analyzes the features of the landscapes of the subnival-nival belt of the Greater Caucasus within Azerbaijan, compiled schematic maps of individual high-mountain massifs using materials from the interpretation of large-scale aerial photographs. The main landscape units of the territory, as well as exogenous factors of relief formation, influencing their formation and the possibilities of carrying out economic activities in high-mountainous regions, have been identified.

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