Forest Vegetation of the garden and park landscapes of the Middle Pobuzhzhia region (Vinnytsia and Cherkasyoblasts, Ukraine)

2021 ◽  
Vol 17 (1) ◽  
pp. 6-35
Author(s):  
Kovtoniuk A.I. ◽  
Kuzemko A.A.
Keyword(s):  
Species Richness ◽  
Quantitative Methods ◽  
Diversity Indices ◽  
Taraxacum Officinale ◽  
Theoretical Background ◽  
Forest Vegetation ◽  
Fraxinus Excelsior ◽  
Landscape Art ◽  
Species Richness And Diversity ◽  
Leading Role

The article presents the results of a comprehensive phytosociological survey of forest vegetation of garden landscapes of the Middle Pobuzhzhia region, including the establishment of its syntaxonomic structure, revealing of the leading factors of differentiation, analysis of vegetation units and studied parks in terms of species richness and diversity. The data for the study were 90 vegetation plots sampled by the authors on the territory of 15 objects (8 parks-monuments of landscape art of state importance, 5 – local importance, one arboretum of state importance, and one landscape reserve of local importance). The data were analysed using modern quantitative methods of phytosociological research in the environment of the Juice software. As a result of the study, seven vegetation units were obtained, six of them were interpreted to the level of association (Salicetum albae, Urticodioicae-Alnetumglutinosae, Chelidonio-Robinietum,Tilio-Carpinetum,Isopyro thalictroidis-Carpinetumand Galeobdolo lutei-Carpinetum) and one as a derivative community. The resulted units represent four classes of vegetation - Salicetea purpureae, Alnetea glutinosae, Carpino-Fagetea sylvaticae and Robinietea. The ordination analysis revealed the ecological separation of the derivative community Taraxacum officinale + Fraxinus excelsior, which combined park phytocenoses with the most intensive management, from other vegetation units, as well as the leading role of moisture and continentality in differentiation of the studied vegetation. A comparative analysis on the level of species richness and values of Shannon-Wiener and Simpson diversity indices showed the dependence of these indicators on landscape diversity, managment intensity and area of studied parks. The highest species richness and diversity was observed for floodplain alder forests of the class Alnetea glutinosae, which are very rare in the studied parks. The results of the study can be a theoretical background for planning the management and reconstruction of garden and park landscapes in the region. Стаття присвячена результатам комплексного фітосоціологічного обстеження лісової рослинності садово-паркових ландшафтів Середнього Побужжя, зокрема встановленню її синтаксономічної структури, з’ясуванню провідних факторів диференціації, аналізу одиниць рослинності і досліджених парків за рівнем видового багатства та різноманітності. Матеріалами для дослідження були 90 повних геоботанічних описів, виконаних авторами на території 15 об’єктів (8 парків-пам’яток садово-паркового мистецтва загальнодержавного, 5 – місцевого значення, один дендрологічний парк загальнодержавного значення і один ландшафтний заказник місцевого значення). Описи оброблялися за допомогою сучасних кількісних методів фітосоціологічних досліджень у середовищі програми Juice. В ході дослідження було отримано сім одиниць рослинності, шість з яких були інтерпретовані до рівня асоціації (Salicetum albae,Urtico dioicae-Alnetum glutinosae, Chelidonio-Robinietum,Tilio-Carpinetum,Isopyro thalictroidis-Carpinetum і Galeobdolo lutei-Carpinetum) і одна як дериватне угруповання. Отримані одиниці репрезентують чотири класи рослинності – Salicetea purpureae,Alnetea glutinosae,Carpino-Fagetea sylvaticae і Robinietea. За допомогою ординаційного аналізу було встановлено найбільшу екологічну відокремленість дериватного угруповання Taraxacum officinale+Fraxinus excelsior, яке об’єднало паркові фітоценози з найбільш інтенсивним доглядом,від решти одиниць рослинності, а також провідну роль вологості і континентальності у диференціації дослідженої рослинності. Порівняльний аналіз синтаксонів і парків за рівнем видового багатства і значеннями індексів різноманітності Шеннона-Уінера і Сімпсона засвідчив залежність цих показників від ландшафтного різноманіття, інтенсивності догляду та площі досліджених парків, а також найвище видове багатство та різноманітність заплавних вільхових лісів класу Alnetea glutinosae, які є дуже рідкісними в досліджених парках. Результати проведеного дослідження можуть бути теоретичним підґрунтям при плануванні управління та реконструкції садово-паркових ландшафтів у регіоні.

scholarly journals The impact of fire on plant biodiversity in the semideserts of Central Kazakhstan

2021 ◽  
Vol 265 ◽  
pp. 01020
Author(s):  
Sergey Lednev ◽  
Ivan Semenkov ◽  
Anna Sharapova ◽  
Tatyana Koroleva
Keyword(s):  
Species Richness ◽  
Diversity Indices ◽  
Plant Biodiversity ◽  
Species Richness And Diversity ◽  
The Impact

The dynamics of species richness and diversity indices in pyrogenic successions of sagebrush and perennial saltwort communities in Central Kazakhstan were analyzed. The biodiversity of such communities during the initial years after fires was higher than that in unburnt phytocenoses. However, values of biodiversity parameters significantly decreased 27-31 years after fires.

Aquatic and semi aquatic Hemiptera community of Sonebeel, the largest wetland of Assam, northeastern India

2018 ◽  
Vol 10 (13) ◽  
pp. 12792-12799
Author(s):  
Anupama Saha ◽  
Susmita Gupta
Keyword(s):  
Species Richness ◽  
Pest Control ◽  
Relative Abundance ◽  
Species Distribution ◽  
Diversity Indices ◽  
Environmental Data ◽  
Northeastern India ◽  
Ecological Roles

Aquatic and semiaquatic Hemiptera bugs play significant ecological roles, and they are important indicators and pest control agents.  Little information is currently available concerning its populations in southern Assam.  This study assessed hemipterans in four sites of Sonebeel, the largest wetland in Assam (3458.12 ha at full storage level), situated in Karimganj District.  The major inflow and outflow of the wetland are the rivers Singla and Kachua, respectively (the Kachua drains into the Kushiyara River).  Samples were trapped with pond nets and were seasonally recorded.  This study recorded a total of 28 species of aquatic and semiaquatic hemipterans belonging to 20 genera under nine families.  Population, geographical and environmental data (e.g., rainfall) were used to assess the relative abundance of species, species richness and different diversity indices, and species distribution. 

Field Margin Weed-Species Diversity in Relation to Landscape Attributes and Adjacent Land Use

Weed Science ◽  
2007 ◽  
Vol 55 (2) ◽  
pp. 129-136 ◽  
Author(s):  
Lynn M. Sosnoskie ◽  
Edward C. Luschei ◽  
Mark A. Fanning
Keyword(s):  
Land Use ◽  
Species Richness ◽  
Agricultural Landscape ◽  
Elevation Gradient ◽  
Shape Index ◽  
Diversity Indices ◽  
Weed Species ◽  
Field Margin ◽  
Local Climate ◽  
Modeling Strategy

The importance of managing weeds in seminatural habitats that are adjacent to farm fields is unclear. Weedy-margin vegetation may harbor pests or pathogens and may ALSo serve as source populations for ongoing immigration of weeds into the field. It is ALSo possible, however, that margin vegetation provides habitat for organisms that consume weed seeds or suppress the likelihood of pest or pathogen outbreak. We examined the nature of margin habitat using spatial-scaling of Weed-Species richness as an ecological assay. In 2003, we recorded the occurrence of weedy species along the perimeters of 63 fields in Wisconsin. The fields were distributed within six counties that differed in topography, geological history, local climate, and soil type and which spanned the range of variability in the agricultural landscape. We identified seven habitats that differed in geology and land use. The relationship between species richness and margin class was estimated using an analog of the power law. Additionally, we investigated broadscale correlates of habitat heterogeneity at the field level, using a modeling strategy that included additional explanatory factors logically connected to plant diversity. Using a model-confrontation approach, the survey supported the inclusion of two topographical diversity indices, elevation gradient and a field-shape index, into our model. Our broadscale survey provides information on one of a suite of important considerations needed to make decisions about the importance of managing weeds in field margins.

scholarly journals Species richness and diversity in shrub savanna using ordinary kriging

2016 ◽  
Vol 51 (8) ◽  
pp. 958-966 ◽  
Author(s):  
Anderson Pedro Bernardina Batista ◽  
José Márcio de Mello ◽  
Marcel Régis Raimundo ◽  
Henrique Ferraço Scolforo ◽  
Aliny Aparecida dos Reis ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Species Richness ◽  
Spatial Dependence ◽  
Ordinary Kriging ◽  
Diversity Index ◽  
Spatial Models ◽  
Shannon Diversity Index ◽  
Shannon Diversity ◽  
Species Richness And Diversity ◽  
Number Of Species

Abstract: The objective of this work was to analyze the spatial distribution and the behavior of species richness and diversity in a shrub savanna fragment, in 2003 and 2014, using ordinary kriging, in the state of Minas Gerais, Brazil. In both evaluation years, the measurements were performed in a fragment with 236.85 hectares, in which individual trees were measured and identified across 40 plots (1,000 m2). Species richness was determined by the total number of species in each plot, and diversity by the Shannon diversity index. For the variogram study, spatial models were fitted and selected. Then, ordinary kriging was applied and the spatial distribution of the assessed variables was described. A strong spatial dependence was observed between species richness and diversity by the Shannon diversity index (<25% spatial dependence degree). Areas of low and high species diversity and richness were found in the shrub savanna fragment. Spatial distribution behavior shows relative stability regarding the number of species and the Shannon diversity index in the evaluated years.

scholarly journals Is polychaete diversity in the deep sublittoral of an Antarctic fiord related to habitat complexity?

2012 ◽  
Vol 33 (2) ◽  
pp. 181-197 ◽  
Author(s):  
Krzysztof Pabis ◽  
Jacek Siciński
Keyword(s):  
Species Richness ◽  
Habitat Complexity ◽  
Feeding Guilds ◽  
Depth Range ◽  
Soft Bottom ◽  
Admiralty Bay ◽  
Sea Floor ◽  
Species Richness And Diversity ◽  
South Shetlands ◽  
High Species Richness

Is polychaete diversity in the deep sublittoral of an Antarctic fiord related to habitat complexity?Seventy-six species of Polychaeta were found in 19 quantitative samples collected in the deep sublittoral (200-500 m) of Admiralty Bay (South Shetlands). Three assemblages were distinguished by similarity analysis (clustering, nMDS). The soft bottom in depths from 200 to 300m was strongly dominated byMaldane sarsi antarcticaand had very low species richness and diversity. The second assemblage was distinguished in the areas of the sea floor in the same depth range but with aggregations of Ascidiacea and Bryozoa. It was again characterized by high abundance ofMaldane sarsi antarctica, but showed significantly higher species richness and diversity. Diversity of polychaete feeding guilds was also high in these areas. This pattern was probably associated with an increased habitat complexity due to the presence of dense aggregations of large suspension feeders. High species richness and diversity was also noted in the third assemblage, associated with the deepest sublittoral (400-500 m) of Admiralty Bay. This is the area characterized by very stable environmental conditions, where the assemblage was dominated byTharyx cincinnatus, Sternaspissp.,Maldane sarsi antarctica, andAsychis amphiglypta.

Impacts of Prescribed Fire, Glyphosate, and Seeding on Cogongrass, Species Richness, and Species Diversity in Longleaf Pine

2013 ◽  
Vol 6 (4) ◽  
pp. 536-544 ◽  
Author(s):  
Stephen F. Enloe ◽  
Nancy J. Loewenstein ◽  
David W. Held ◽  
Lori Eckhardt ◽  
Dwight K. Lauer
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Prescribed Fire ◽  
Longleaf Pine ◽  
Pine Forests ◽  
Herbaceous Species ◽  
Integrated Strategies ◽  
Species Richness And Diversity ◽  
Herbicide Treatments ◽  
Rhizome Biomass

AbstractCogongrass [Imperata cylindrica (L.) Beauv.] is a warm-season, rhizomatous grass native to southeast Asia that has invaded thousands of hectares in the southeastern United States. Its negative impacts on pine forests have been well documented, and aggressive control is widely recommended. Although repeated herbicide treatments are effective for suppression, integrated strategies of prescribed burning coupled with herbicide treatment and revegetation are lacking in pine systems. In particular, longleaf pine forests, which are typically open, fire-dependent, communities, are highly susceptible to cogongrass, which is a pyrogenic species. To address management goals for cogongrass control and herbaceous restoration in longleaf pine forests better, field studies were conducted in southwestern Alabama from 2010 to 2012. Two longleaf pine forests with near-monotypic stands of cogongrass in the understory were selected for study. Treatments included combinations of winter prescribed fire, spring and fall glyphosate herbicide treatments, and seeding a mix of native, herbaceous species. Data were collected for three growing seasons following study initiation, and included seasonal herbaceous species cover and final cogongrass shoot and rhizome biomass. Species richness and diversity were calculated and analyzed to ascertain treatment effects over the duration of the study. Burning slightly improved cogongrass control with glyphosate, but had no effect on total cover, species richness, or species diversity. Three glyphosate treatments reduced total vegetative cover and nearly eliminated cogongrass cover, shoot, and rhizome biomass. Glyphosate and glyphosate + seeding also increased herbaceous species richness and diversity. However, aboveground productivity in treated plots was significantly lower than productivity in the untreated control, which was almost exclusively cogongrass. These studies indicate that glyphosate and integrated strategies utilizing glyphosate and seeding are very useful for cogongrass management and increasing herbaceous species richness and diversity in longleaf pine.

scholarly journals Baseline Assessments of Wildlife Biodiversity Within Selected Areas of Central Visayas, Philippines

2021 ◽  
Vol 6 (2) ◽  
pp. 27-34
Author(s):  
RP Jose ◽  
WA Aureo ◽  
CI Narido ◽  
TD Reyes Jr ◽  
MB Sarnowski
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Diversity Index ◽  
Population Trends ◽  
Species Richness And Diversity ◽  
Natural Park ◽  
Biodiversity Inventories ◽  
Baseline Information ◽  
High Diversity ◽  
Areas Of Protection

A comprehensive inventory of faunal biodiversity was conducted within three Key Biodiversity Areas of Central Visayas. Mt. Bandilaan Natural Park (MBNP), Balinsasayao Twin Lakes Natural Park (BTLNP), and Rajah Sikatuna Protected Landscape (RSPL). Three primary wildlife groups were surveyed: bats, birds and amphibians. Species diversity and population trends were then analyzed to assess areas of biodiversity importance. RSPL generally had the highest species richness and diversity index while MBNP consistently had the lowest. When pooled. The surveyed areas resulted in a high diversity index and rate of endemicity showing the importance of multiple areas of protection. These findings can be utilized to prioritize habitat protection as well as to serve as a baseline information for future biodiversity inventories. J. Biodivers. Conserv. Bioresour. Manag. 2020, 6(2): 27-34

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