Socio-Economic Differences Control Species Composition of Urban Gardens in a Metropolitan Area of Argentina

Author(s):  
VERONICA SPESCHA ◽  
EZEQUIEL ARÁOZ

Abstract Human population is becoming increasingly more urbanized, and in that context private gardens contribute to biodiversity and to access to ecosystem services in cities. The urbanized landscape reflects social, economic and cultural differences of the population, which affect the patterns of urban biodiversity. Socioeconomic level is one of the main factors that spatially structure cities, for which it likely influences several attributes of gardens. In this study we characterized urban vegetation diversity in 50 private gardens of an urban agglomerate of Argentina, Gran San Miguel de Tucumán. We aimed to determine which variables control ecological attributes of gardens. We used socioeconomic indicators obtained from the 2010 Nacional Population and Households Census, and data obtained through a survey to garden owners. Our study suggests that species composition of gardens responds to socioeconomic conditions, which might be linked to the exchange of species as the main method to obtain plants and to strengthen social bonds by belonging to a similar socioeconomic level rather than neighborhood or geographic distance. Based on our analyses, gardens in areas with higher socioeconomic level were larger. Species richness and socioeconomic level of gardens were not significantly associated, and species diversity was related to garden age, with older gardens being more diverse.

2021 ◽  
Author(s):  
Arkadiusz Nowak ◽  
Sebastian Świerszcz ◽  
Sylwia Nowak ◽  
Marcin Nobis

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.


2016 ◽  
Vol 11 (2) ◽  
pp. 64-70
Author(s):  
Emilio Prado da Fonseca ◽  
Suelen Garcia Oliveira da Fonseca

Introduction: The geographical distribution of dentistry schools has been the object of study in Brazil and in other parts of the world. Aim: To analyze the distribution of dentistry schools in Minas Gerais state in 2016. Methodology: This is a cross-sectional study. The analysis of the courses distribution was carried out by regions and cities and categorized by public or private schools. All the institutions addresses were geocoded and mapped to illustrate the spatial distribution of dental courses across Minas Gerais state. Results: In Minas Gerais were found 30 Dentistry schools that 23 (76.66%) were private and 7 (23.34%) public. The largest number of schools were located in metropolitan regions with better socioeconomic indicators The number of annual vacancies the dentistry courses offered the 2.911 vacancies in the Minas Gerais state that 2.310 are in private schools and 601 in public courses.Conclusion: The distribution of courses were irregular and concentrated in regions with better socioeconomic conditions.


2021 ◽  
Vol 110 ◽  
pp. 01040
Author(s):  
Alexey V. Vasilchikov ◽  
Oksana S. Chechina ◽  
Svetlana A. Nikonorova ◽  
Maria V. Rakhova

Unevenness is a feature of sustainable development of Russian territories. It arises due to the impressive difference in the provision of natural resources, residents’ mentality, natural and climate factors, the infrastructure that has formed over the years of territory’s existence, and other various conditions. The purpose of the issue is the research of the main factors reflecting the sustainability of development of Russia and proposes directions for improving the social, economic and environmental policy of the country.


2015 ◽  
Vol 13 (2) ◽  
pp. 105-113
Author(s):  
Gantuya Jargalsaikhan

In a case study, the main objective was to compare three sites with different grazing pressures in Hvitarsida, W-Iceland in relation to current vegetation, seed bank composition and the correlation between those. Our results show that there were significant difference in species composition in above and belowground, giving very little similarity in species composition between seed bank and current vegetation composition. The only exceptions were Agrostis capillaris and Bistorta vivipara that had close similarity between current aboveground vegetation and soil seed bank. Agrostis capillaris had a great abundance in all the sites and Bistorta vivipara proliferates mostly with bulbils that most likely were numerous in the soil. The results of our study agree with current theories on seed bank composition and similar studies,that the similarity between current above ground vegetation and soil seed bank depends on current dominant species (annual or perennial)and the productivity (high or low) of the site.Mongolian Journal of Agricultural Sciences Vol.13(2) 2014: 105-113


Subject Prospects for the euro-area in 2020. Significance The main factors that could weaken euro-area growth in 2020 include further damage to Germany’s export industries, which would hit the extensive supply chains and jobs across many smaller and less resilient member states, especially in Central and Eastern Europe, as well as specific social, economic and political challenges in individual countries.


2021 ◽  
Author(s):  
S. Balasubramanian ◽  
S. Lazarus ◽  
M. Michael Babu ◽  
THAVASIMUTHU - Citarasu

Abstract Background: Polychaetes are an important component of the estuarine and mangrove ecosystem especially in fisheries perspective. The polychaete fauna of the Manakkudy estuary barmouth and mangrove was examined for species composition and taxonomic classification. A total of 27 species belonging to 16 genera under 12 families were collected. Results: Of these 27 species, 16 are new records to Manakudy estuary. Out of which, those coming under the group Errantia were dominant (9 species) when compared to Sedentaria group (7 species). Among the 12 families identified, the species diversity of Nereidae and Capitellidae were found to be high. Conclusions: Salinity and nature of substrata, two main factors which govern the distribution of polychaetes, are also given along with species description.


Author(s):  
Muhamad Nurung

This research is aimed at describing the behavior and social economic status of chicken breeder and analysis the influence of social economic factor and behavior to working allocation. Descriptive analysis was use to explain behavior and social economic factors of breeder while multiple regression has applied to analysis the influence of the feeder. The research found that. Breeder’s attributes revolving age; household member experience and education are good indicating such as high allocation level and high experience furthermore, it is found that age. number of lobour and cost production are the main factors is founding working allocation and the high education and experience of breeder’s is the high working allocation.Key words: Working allocation, social economic factosr.


2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Ida Ardiyaningrum ◽  
MARIA THERESIA SRI BUDIASTUTI ◽  
KOMARIAH KOMARIAH

Abstract. Ardiyaningrum I, Budiastuti MTS, Komariah. 2021. Short Communication: Species composition and diversity of vegetation in dryland agricultural landscape. Biodiversitas 22: 65-71. Drylands are a part of the terrestrial ecosystems with a relatively larger area compared to wetlands. Selo has dryland with steep slopes and high rainfall, resulting in relatively high soil erosion. The land use in this sub-district is dominated by plantations and agriculture, with conditions that have not been fully balanced by trees as a means of controlling erosion and supporting vegetation diversity. Therefore, studies on biodiversity are important as an indicator of dryland sustainability, especially in terms of soil and water conservations. This research aimed to study the species composition and diversity of vegetation in the dryland agricultural landscape in Selo Sub-district, Boyolali District, Central Java Province, Indonesia. Vegetation analysis was performed by using the quadratic sampling technique for tree category, pole category, sapling category, and seedling categories. The results indicated that Fabaceae had the highest number of species. Tree species with the highest Importance Value Index were Toona sureni, Artocarpus heterophyllus, and Casuarina junghuhniana, respectively. The Shanon-Wiener Diversity Index showed that the vegetation at tree, pole, and sapling stages had a moderate diversity, and seedling-stage vegetation had a low diversity.


2019 ◽  
Vol 15 (2) ◽  
pp. 63-75
Author(s):  
Valeriy Yelizarov ◽  
Arseniy Sinitsa

The authors consider the data of Rosstat, which characterize the poverty of households and families with children in the country as a whole. The analysis was carried out taking into account the demographic characteristics of families and households, since they have a significant impact on poverty rates. The expenditures of families and households with children, income and its purchasing power of families with children, features of employment and unemployment of women with children, and living conditions of families with children are considered.The Object of the Study are families with children.The Subject of the Study is the poverty of families with children.The Purpose of the Study. Study of indicators on living conditions of families with children, and determining the main factors of poverty.The Main Provisions of the Article. Families with children are one of the most needy groups of the population, since their income is usually not sufficient to maintain an acceptable standard of living. Families with children make up the majority of all the poor.In recent years, the poverty of families with children has increased in many ways (for example, the number of poor families and their share among all poor people has increased, their income deficit has risen, irrespective of the fact that the employment of women with children in pre-school age has also increased). This indicates the lack of progress in addressing this important social problem, such as reducing poverty in families with children.The article highlights the main factors that hinder the improvement of living standards for families with children.The most important factor is the number of children in the family, as well as their age. There are more poor people in the families with a large number of children and families with children under the age of three. This is partly due to the low level of development of the network of preschool institutions, as well as to low incomes, since in such families women's employment is low. The second important factor is the fact of living in rural areas, where the birth rate is higher and the quality of life is lower. The third factor is the number of adults in the family (including those who are older than working age) who have incomes. The poverty of families with children is primarily influenced by demographic factors, the significance of which is especially high caused by low wages and small amounts of state benefits.The study will provide a better understanding of the nature and consequences of poverty of families with children in regions with different socioeconomic indicators and develop a differentiated system of measures aimed at improving their standard of living, taking into account these differences, including taking into account regional features. Further studies of the factors and extent of poverty will help to objectively assess the possibilities of influencing various factors and, in fact, the prospects for reducing poverty.


PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4531 ◽  
Author(s):  
Rodolfo Jaffé ◽  
Xavier Prous ◽  
Allan Calux ◽  
Markus Gastauer ◽  
Gilberto Nicacio ◽  
...  

The degradation of subterranean habitats is believed to represent a serious threat for the conservation of obligate subterranean dwellers (troglobites), many of which are short-range endemics. However, while the factors influencing cave biodiversity remain largely unknown, the influence of the surrounding landscape and patterns of subterranean connectivity of terrestrial troglobitic communities have never been systematically assessed. Using spatial statistics to analyze the most comprehensive speleological database yet available for tropical caves, we first assess the influence of iron cave characteristics and the surrounding landscape on troglobitic communities from the Eastern Amazon. We then determine the spatial pattern of troglobitic community composition, species richness, phylogenetic diversity, and the occurrence of frequent troglobitic species, and finally quantify how different landscape features influence the connectivity between caves. Our results reveal the key importance of habitat amount, guano, water, lithology, geomorphology, and elevation in shaping iron cave troglobitic communities. While mining within 250 m from the caves influenced species composition, increasing agricultural land cover within 50 m from the caves reduced species richness and phylogenetic diversity. Troglobitic species composition, species richness, phylogenetic diversity, and the occurrence of frequent troglobites showed spatial autocorrelation for up to 40 km. Finally, our results suggest that the conservation of cave clusters should be prioritized, as geographic distance was the main factor determining connectivity between troglobitic communities. Overall, our work sheds important light onto one of the most overlooked terrestrial ecosystems, and highlights the need to shift conservation efforts from individual caves to subterranean habitats as a whole.


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