Diversitatea vegetala si animala a ecosistemului urban Orhei

2019 ◽  
Author(s):  
Constantin Bulimaga ◽  
◽  
Victoria Nistreanu ◽  
Corina Certan ◽  
Olesea Gliga ◽  
...  
Keyword(s):  
Invasive Species ◽  
Biodiversity Conservation ◽  
Environmental Quality ◽  
Anthropogenic Impact ◽  
Urban Ecosystem ◽  
Mammal Fauna ◽  
Green Areas ◽  
Order Passeriformes ◽  
Species Category ◽  
Anthropogenic Ecosystems

Lately, the problem of biodiversity conservation is becoming more and more acute due to increase of anthropogenic impact. With the evolution of anthropogenic ecosystems, it also increases the vulnerability of species and biodiversity in general, as a result affecting ecological balance and environmental quality. The purpose of the researches was to evaluate the flora and fauna diversity in the Orhei urban ecosystem. The study was conducted during 2017 in 10 urban stations. Floral researches enumerate the presence of 146 species of magnoliophyte plants, grouped in 127 genera from 45 families. The most numerous were the species of the families: Asteraceae, Fabaceae, Rosaceae and Poaceae. The most frequents species are the eurybionte with wide ecological amplitude, some of which are included in the invasive species category. Vertebrates researches have revealed the fact, that the mammal fauna includes 29 species with a higher effective in the green areas of the urban ecosystem. The birds population of the ecosystem enumerate 58 species, prevail those from order Passeriformes.

scholarly journals Determinants of the urban environmental quality: UEQI for colombian cities

2019 ◽  
Vol 13 (2) ◽  
pp. 337-349
Author(s):  
Oscar Hernán Cerquera-Losada ◽  
Luisa Fernanda Campos-Fajardo ◽  
Laura Sofía Cuéllar-Torrecillas ◽  
Luisa Alejandra Durán-Vargas ◽  
María Camila López-Tovar ◽  
...  
Keyword(s):  
Public Space ◽  
Environmental Quality ◽  
Environmental Sustainability ◽  
Direct Effects ◽  
Green Areas ◽  
Low Levels ◽  
Alternative Solutions ◽  
Quality Indexes ◽  
Socioeconomic Studies

The present inquiry arises as a result of a constant search of problems that affect cities of the country, by the Hotbed of Investigation of Surcolombian Socioeconomic Studies HISSS, of the Surcolombiana University of Neiva (Colombia) -.In this way, we found those factors and actions that contribute to making Bogotá, Medellin, Barranquilla, Neiva, Tunja and Cúcuta, cities that the Ministry of Environment and Sustainable Development through the urban environmental quality indexes (UEQUI) categorizes, at medium, low and very low levels. A methodology was developed that projects positivist and qualitative investigation, corresponding to a descriptive and explanatory study of the environmental sustainability of the cities is obtained from factors such as: public space; green areas; environmental pollution; mobility, public transport. The results obtained are of a relevant nature because they show old direct effects on the quality of life of the inhabitants, so that from them, alternative solutions are interpreted and proposed

scholarly journals Benthic communities in three Mediterranean touristic ports: MAPMED project

2021 ◽  
Vol 9 ◽  
Author(s):  
Eva Chatzinikolaou ◽  
Panagiotis Damianidis ◽  
Christina Pavloudi ◽  
Aikaterini Vasileiadou ◽  
Sarah Faulwetter ◽  
...  
Keyword(s):  
Invasive Species ◽  
Mediterranean Sea ◽  
Quality Indicators ◽  
Environmental Quality ◽  
Economic Activity ◽  
Anthropogenic Disturbance ◽  
Benthic Communities ◽  
Macrobenthic Communities ◽  
Macrobenthic Assemblages ◽  
Port Areas

Mediterranean ports are sources of significant economic activity and at the same time they act as recipients of considerable anthropogenic disturbance and pollution. Polluted and low-in-oxygen sediments can negatively impact benthic biodiversity and favour recruitment of opportunistic or invasive species. Macrobenthic communities are an important component of the port biota and can be used as environmental quality indicators. However, a baseline database for benthic biodiversity in Mediterranean ports has not yet been widely established. Macrobenthic assemblages were recorded in three Mediterranean touristic ports under the framework of the ENPI CBC MED project MAPMED (MAnagement of Port Areas in the MEDiterranean Sea Basin). Samples were collected from Cagliari (Sardinia, Italy), Heraklion (Crete, Greece) and El Kantaoui (Tunisia) ports during February, May and September 2012. The sampling stations were selected according to the different sectors within each port (i.e. leisure, fishing, passenger/cargo vessels and shipyard). A total of 277 taxa belonging to 12 phyla were found, of which the 96 taxa were present in all three ports. El Kantaoui port hosted the highest number of macrobenthic taxa. Mollusca were the most abundant group (34%) in all ports. The highest percentage of opportunistic taxa per station was found before the touristic period in the shipyard of Heraklion port (89.3%).

scholarly journals Análise da Variação Espaço-Temporal das Áreas Verdes e da Qualidade Ambiental em Áreas Urbanas, Recife-PE (Analysis of the Time-Space Variation of Green Areas and the Environmental Quality in Urban Areas, Recife-PE)

2015 ◽  
Vol 7 (6) ◽  
pp. 1196
Author(s):  
Tiago Henrique de Oliveira ◽  
José Gleidson Dantas ◽  
Josiclêda Domiciano Galvíncio ◽  
Rejane Magalhães de Mendonça Pimentel ◽  
Milton Botler
Keyword(s):  
Land Use ◽  
Environmental Quality ◽  
Urban Areas ◽  
Rapid Change ◽  
Large Temperature ◽  
Natural Soil ◽  
Area Index ◽  
Time Space ◽  
Green Areas ◽  
Spatio Temporal

As rápidas mudanças do uso e cobertura do solo em ambiente urbano apresentam grande impacto nas relações entre os ciclos energéticos e hidrológicos sobre a superfície. O município do Recife, através da Lei de Uso e Ocupação do Solo de 1996 (Lei nº 16.176/96) define área verde como “toda área de domínio público ou privado, em solo natural,onde predomina qualquer forma de vegetação, distribuída em seus diferentes estratos: Arbóreo, Arbustivo e Herbáceo /Forrageira, nativa ou exótica”. O objetivo deste artigo é analisar a variação espacial das áreas verdes disponíveis no município do Recife e a evolução espaço-temporal da qualidade ambiental na RPA 4 através do computo do Índice de umidade (NDWI), Índice de Área Foliar (IAF) e Temperatura da superfície em imagens TM Landsat. Foi realizada uma classificação supervisionada na ortofotocarta Recife onde as áreas verdes foram exportadas para polígonos, permitindo a sua quantificação. Para as imagens TM foi aplicada parte da metodologia SEBAL. As áreas verdes ocupam 45,58% do Recife. Os transectos lineares e perfis permitiram visualizar mais facilmente as mudanças espaço-temporais ocorridos na RPA-4. Foi visualizada grande diferença de temperatura entre as áreas vegetadas e as áreas mais urbanizadas. Palavras-chave: Uso e ocupação do solo; área urbana, áreas vegetadas, sensoriamento remoto; MAXVER. A B S T R A C T The rapid change of use and land cover in urban environment poses great impact on relations between energy and hydrological cycles on the surface. The municipality of Recife, through the Land Use Legislation from 1996 (Law No. 16.176/96) defines green area as ";;;;;;any public or private domain area, in natural soil, where overcrows any form of vegetation, distributed in its different layers: Arboreal, shrubby and Herbaceous Forage, native or exotic";;;;;;. The goal of this paper is to analyze the spatial variation of available green areas in the city of Recife and the spatio-temporal evolution of environmental quality in the Political Administrative Region 4, known as RPA-4, through the calculation of moisture content (NDWI), leaf area index (LAI) and the surface temperature from Landsat TM images. Supervised classification was performed on orthophoto Reef where the green areas were exported to polygons, allowing its quantification. For the TM images, it has been applied the methodology SEBAL. The green areas occupy 45.58% of Recife. The linear transects and profiles allowed to show more easily space-time changes occurring in the RPA-4. Large temperature differences have been displayed between the most vegetated areas and more urbanized areas. Key-words: Land use; urban areas; vegetated area, remote sensing; MAXVER.

scholarly journals Avaliação da Qualidade Ambiental do Parque da Jaqueira-Recife, Pernambuco (Evaluation of environmental quality Jaqueira park - Recife, Pernambuco)

2016 ◽  
Vol 9 (1) ◽  
pp. 163
Author(s):  
Matheus Davi Vilaça ◽  
Andrezza Araújo de Souza ◽  
Andrezza Karla de Oliveira Silva ◽  
Eugênia Cristina Pereira
Keyword(s):  
Quality Of Life ◽  
Environmental Quality ◽  
Tree Species ◽  
Urban Park ◽  
Ecological Context ◽  
Climate Conditions ◽  
Rich Diversity ◽  
Tree Inventory ◽  
Green Areas

As áreas verdes influenciam nas condições climáticas e no bem estar social, melhorando a qualidade de vida da população e trazendo contribuições em âmbito ecológico. O escopo do trabalho foi avaliar a qualidade ambiental do Parque da Jaqueira – Recife, Pernambuco, a partir de um censo quantitativo das árvores, classificando-as por espécie e quanto à natureza, nativa ou exótica. Os resultados obtidos demonstram que o Parque possui uma rica diversidade de espécies arbóreas com 633 indivíduos, distribuídos em 49 espécies e 23 famílias botânicas. Dentre as espécies quantificadas 344 (54,34%) foram de origem nativa e 289 (45,65%) exótica. Com isso, concluímos que apesar de uma arborização satisfatória, o elevado número de espécies exóticas encontrados sugerem possíveis riscos de desequilíbrios ecológicos.    A B S T R A C T Urban Green areas has influence on climate conditions and social welfare, improving the quality of life of people and bringing contributions to ecological context. The objective was to make a quantitative census of the trees of the Park Jaqueira - Recife, Pernambuco, sorting by type and nature as native or exotic. The results obtained show that the park has a rich diversity of tree species with 633 individuals, including 49 species and 23 botanical families. Among the quantified species 344 (54,34%) were native and 289 exotic origin (45,65%). Under these circumstances, we conclude that despite a satisfactory afforestation, the high number of exotic species found suggest the potential for ecological imbalances. Key words: Green areas; Urban park; Tree inventory  

scholarly journals Ensuring the sustainable development of the city park-estate “Ostankino” in Moscow

Vestnik MGSU ◽  
2021 ◽  
pp. 1115-1123
Author(s):  
Mihail A. Slepnev ◽  
Anna A. Ryazantseva
Keyword(s):  
Sustainable Development ◽  
Urban Environment ◽  
Anthropogenic Impact ◽  
Simple Calculation ◽  
Field Work ◽  
Urban Ecosystem ◽  
Practical Aspect ◽  
Natural Frame ◽  
The Impact ◽  
The City

Introduction. Providing the natural frame of the city as a sustainable system of landscaping and water areas in the urban environment is one of the tasks aimed at preserving the natural frame of the urban environment. The article focuses on the influence of the recreational load on the natural-anthropogenic territorial complex (PATC) located in the North-Eastern administrative region of Moscow. To ensure sustainable development of natural areas, the ability of the components of the natural environment to self-heal under conditions of anthropogenic impact is of particular importance. Taking into account the increase in residential and industrial areas located in close proximity to natural zones, the anthropogenic impact on natural complexes is increasing. First of all, this affects the recreational areas of park zones, where the potential recreational load begins to exceed the stan­dardized and causes degradation of green spaces and disruption of the urban ecosystem. Recreational load affects the state of the natural complex of the city, and its value is determined by the planning structure of urban development. While ensuring the safety of city parks, it becomes necessary to work with complete and reliable information, which can only be obtained through research. The practical aspect of scientific research, considered in the article, includes the results of the analysis of the impact of anthropogenic load on the natural-anthropogenic territorial complex of the park - the estate “Ostankino”. Materials and methods. The paper uses various attributive information collected from open sources and based on the results of field work by the authors, legal documents, and various cartographic materials. The calculation of potential visitors was carried out by a simple calculation method, followed by the use of the Microsoft Office Excel software product to compile the time dependencies of the visit. Results. On the basis of the conducted research, the excess of the normative value of the recreational load of the territory of the Ostankino estate park in Moscow was revealed and graphs of the dependence of the visit on the time intervals were constructed. Conclusions. The increased rate of population inflow and environmental pollution leads to the transformation of the ecological framework of the city.

scholarly journals Effects of invasive plant species on species diversity: implications on ruderal vegetation in Bratislava City, Slovakia, Central Europe

2019 ◽  
Vol 88 (2) ◽  
Author(s):  
Alena Rendeková ◽  
Karol Mičieta ◽  
Michal Hrabovský ◽  
Mariana Eliašová ◽  
Ján Miškovic
Keyword(s):  
Invasive Species ◽  
Species Diversity ◽  
Central Europe ◽  
Invasive Plant ◽  
Urban Ecosystem ◽  
Ruderal Vegetation ◽  
Natural Habitats ◽  
Environmental Threats ◽  
Negative Effect ◽  
Invasive Taxa

Invasive species pose one of the most serious global environmental threats. Our study aimed to examine the correlation between the proportion of invasive alien taxa and species diversity of ruderal vegetation in the urban ecosystem of Bratislava, located in Central Europe. Ruderal habitats serve as the means of spread of invasive species to seminatural and natural habitats. Twenty-six invasive taxa were recorded among the ruderal vegetation of Bratislava. The majority of the recorded invasive species were neophytes, which came from North America and represent the Asteraceae family. Half of them were introduced accidentally, whereas the remaining species were introduced deliberately. Correlation and regression analyses showed that the proportion of invasive taxa has a negative effect on the species diversity of all the analyzed syntaxa in the ruderal vegetation of Bratislava.

Corrigendum to: The threats to Australia’s imperilled species and implications for a national conservation response

2019 ◽  
Vol 25 (3) ◽  
pp. 328 ◽  
Author(s):  
Stephen G. Kearney ◽  
Josie Carwardine ◽  
April E. Reside ◽  
Diana O. Fisher ◽  
Martine Maron ◽  
...  
Keyword(s):  
Invasive Species ◽  
Biodiversity Conservation ◽  
Threatened Species ◽  
Human Activities ◽  
Agricultural Activity ◽  
Environment Protection ◽  
Comprehensive Review ◽  
Dramatic Decline ◽  
Taxonomic Groups ◽  
Unique Species

Since European occupation of Australia, human activities have caused the dramatic decline and sometimes extinction of many of the continent's unique species. Here we provide a comprehensive review of threats to species listed as threatened under Australia's Environment Protection and Biodiversity Conservation Act 1999. Following accepted global categories of threat, we find that invasive species affect the largest number of listed species (1257 species, or 82% of all threatened species); ecosystem modifications (e.g. fire) (74% of listed species) and agricultural activity (57%) are also important. The ranking of threats was largely consistent across taxonomic groups and the degree of species' endangerment. These results were significantly different (P

scholarly journals Taxonomic distribution of cryptic diversity among metazoans: not so homogeneous after all

2016 ◽  
Vol 12 (8) ◽  
pp. 20160371 ◽  
Author(s):  
Gerardo Pérez-Ponce de León ◽  
Robert Poulin
Keyword(s):  
Invasive Species ◽  
Species Richness ◽  
Cryptic Species ◽  
Biodiversity Conservation ◽  
Research Effort ◽  
Cryptic Diversity ◽  
Taxonomic Distribution ◽  
Extensive Survey ◽  
Taxonomic Groups

Cryptic diversity plagues estimates of biodiversity, conservation efforts and attempts to control diseases and invasive species. Here, we re-visit a decade-old assessment of whether or not cryptic species are homogeneously reported among higher metazoan taxa. We compiled information from an extensive survey of the literature to recover all reports of cryptic species among metazoans. After correcting for currently known species richness and research effort per taxon, we find that cryptic species are over-reported in some taxa and under-reported in others. Although several taxa showing either a lack or an excess of reported cryptic species were poorly studied invertebrate groups, we found that cryptic species were over-reported in amphibians, reptiles and crustaceans, all relatively well-studied groups. The observed heterogeneity in the distribution of reported cryptic species may reflect taxon-specific properties affecting either the propensity for cryptic species to be formed or their likelihood of being detected by conventional taxonomy. Either way, the implications of cryptic diversity may not apply equally across all taxonomic groups.

scholarly journals Environmental quality of a cultural landscape 75 years after its foundation: the Banana City of Golfito, Costa Rica

2016 ◽  
Vol 8 (1) ◽  
pp. 85-92
Author(s):  
Lucía Riba Hernández ◽  
Julián Monge-Nájera
Keyword(s):  
Costa Rica ◽  
Public Space ◽  
Environmental Quality ◽  
Landscape Management ◽  
Climatic Conditions ◽  
Environmental Indicators ◽  
Urban Green ◽  
Urban Green Areas ◽  
Green Areas

In 1938, the American multinational United Fruit Company built a small city in Golfito, South Pacific of Costa Rica. Golfito persists today as an urban area flanked by a mountain chain and a small bay surrounded by mangroves. We applied a set of environmental indicators to assess the current environmental quality of the landscape. We compared 106 photographs of Golfito with photographs from San José (capital of Costa Rica) as a reference; this comparison found a smaller proportion of urban green areas, but more trees and forest in Golfito. Contemporary architecture and public spaces have few facilities (such as sidewalks, public lighting and furnishing), and suffers from deterioration and low adaptation to tropical climatic conditions, especially in traditional architectural remains. Landscape management must make the natural components compatible with the cultural components, and Golfito is unique in the country because of its intense and fragile relationship among city, history and nature. We recommend priority conservation in risk management, public space comfort, valorization of the built heritage and abandoned areas, and an increase of urban green areas.

Rethinking urban areas: an example of an integrated blue-green approach

2013 ◽  
Vol 13 (6) ◽  
pp. 1534-1542 ◽  
Author(s):  
E. Rozos ◽  
C. Makropoulos ◽  
Č. Maksimović
Keyword(s):  
Quality Of Life ◽  
Green Infrastructure ◽  
Urban Areas ◽  
Green Roofs ◽  
Urban Ecosystem ◽  
Water Supply Systems ◽  
Urban Water ◽  
Green Approach ◽  
Green Areas

The provision of high quality urban water services, the assets of which are often conceptualised as ‘blue infrastructure’, is essential for public health and quality of life in the cities. On the other hand, parks, recreation grounds, gardens, green roofs and in general ‘green infrastructure’, provide a range of (urban) ecosystem services (including quality of life and aesthetics) and could also be thought of as inter alia contributors to the mitigation of floods, droughts, noise, air pollution and urban heat island (UHI) effects, improvement of biodiversity, amenity values and human health. Currently, these ‘blue’ and ‘green’ assets/infrastructure are planned to operate as two separate systems despite the obvious interactions between them (for example, low runoff coefficient of green areas resulting in reduction of stormwater flows, and irrigation of green areas by potable water in increasing pressure on water supply systems). This study explores the prospects of a more integrated ‘blue-green’ approach – tested at the scale of a household. Specifically, UWOT (the Urban Water Optioneering Tool) was extended and used to assess the potential benefits of a scheme that employed locally treated greywater along with harvested rainwater for irrigating a green roof. The results of the simulations indicated that the blue-green approach combined the benefits of both ‘green’ and ‘blue’ technologies/services and at the same time minimised the disadvantages of each when installed separately.

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