scholarly journals On the role of turf species as refuge in disturbed environments: A case study with polychaetes (Annelida: Polychaeta) in SW Mediterranean Sea

2017 ◽  
Vol 18 (2) ◽  
pp. 229 ◽  
Author(s):  
I. MELERO ◽  
S. LÓPEZ-VELASCO ◽  
E. LÓPEZ

During the summer of 2014, a field survey was conducted in several littoral rocky sites on the southeastern coast of Spain. In this area, dense canopies of Cystoseira mediterranea characterize undisturbed locations and cover most of the available infralittoral fringe. Turfs composed mainly of the coralline algae Ellisolandia elongata replace the canopy in locations where some kind of anthropogenic disturbance has occurred. The main goal of this study was to compare the polychaete fauna dwelling within the two types of phytal substratum, and several univariate and multivariate analyses were performed to detect significant differences between the two assemblages. The analyses showed that the assemblage inhabiting E. elongata was characterized by a higher population density of polychaetes and was dominated by herbivores and filter-feeders, especially Fabricia stellaris and Amphiglena mediterranea. Polychaetes were less abundant in pristine sites covered by Cystoseira mediterranea, although a-diversity was slightly higher. This assemblage was characterized by a predominance of omnivores followed by herbivores, and by high relative abundances of Syllis prolifera and Salvatoria clavata. However, none of the detected differences was statistically significant and site to site comparison showed that differences between locations with the same phytal cover were similarly deep. Our data point out that the assemblage inhabiting turf algae in the region studied is not substantially different to that found in pristine areas and that this type of phytal covering can act as effective refuge for polychaetes under moderately disturbed condition.  

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Hanny Maria Caesarina ◽  
Nahdi Saubari

Ruang terbuka hijau telah dikenal memiliki peranan yang penting dalam meningkatkan kualitas lingkungan perkotaan. Ruang terbuka hijau dalam perencanaan kota kerap dianggap sebagai elemen pendukung terwujudnya smart city. Penelitian ini bertujuan untuk menemukan seberapa jauh peran ruang terbuka hijau lewat penyediaan wifi corner dalam perencanaan kota menuju konsep smart city. Metode yang digunakan adalah deskriptif kualitatif berdasarkan observasi, survey lapangan dan serangkaian wawancara. Studi kasus yang diambil dalam penelitian ini adalah dua kota di Kalimantan Selatan, yaitu Banjarmasin dan Banjarbaru yang telah memiliki konsep smart city. Hasil penelitian menunjukkan bahwa ruang terbuka hijau dalam perencanaan kota memiliki potensi yang kuat sebagai elemen pembentuk smart city. Apabila ruang terbuka hijau suatu kota telah direncanakan dengan baik dari berbagai segi fasilitas dan terkoneksi dengan jaringan internet yang berkualitas, maka dengan sendirinya konsep smart city akan lebih mudah dicapai. Kata kunci: perencanaan kota, ruang terbuka hijau, smart city, wifi corner. Green space has an important role in enhancing environmental quality of a city. Green space often considered as a supporting element for the concept of smart city. This research intended to acknowledge the role of green space through the installation of wifi corner in urban planning towards smart city. The methods that has been used was descriptive qualitative through observation, field survey and interviews. The case study in this research were Banjarmasin and Banjarbaru which already has the smart city concepts. The result shows that green space in urban planning is a potential element towards smart city. A well good planned green space with all the facilities that connected to a good internet network in a city might help forming the concept of smart city. Keywords: green space, smart city, urban planning, wifi corner.


Author(s):  
Jici Wang ◽  
Chun Zhang ◽  
Ching-Ning Wang ◽  
Ping Chen

This paper examines the role of creative milieu and cultural heritages in the development of Chinese cultural industry. Through case study of Beijing’s Nanluoguxiang, where several arts institutions and theaters concentrate, it depicts the birth and growth of a creative place for free artists in the institutional changing of Chinese cultural setting. Based on field survey data from artists, managers and visitors, it shows the spouting and growth of local creativities in a transitional economy needs atmosphere of tolerant and frequent social gathering, especially in spaces like cafes and bars. It also suggests that making a good use of local cultural and creative resources like heritages and folk customs enables the superiority of localization standing out in the wave of globalization. The key findings indicate that the newly-built creative parks might be useful to breed the creative products, but not necessary.


2019 ◽  
Vol 11 (7) ◽  
pp. 1968 ◽  
Author(s):  
Shuaishuai Han ◽  
Bindong Sun

We examine the effects of the urban built environment on PM2.5 (fine particulate matter with diameters equal or smaller than 2.5 μm) concentrations by using an improved region-wide database, a spatial econometric model, and five built environment attributes: Density, design, diversity, distance to transit, and destination accessibility (the 5Ds). Our study uses Shanghai as a relevant case study and focuses on the role of density at the jiedao scale, the smallest administrative unit in China. The results suggest that population density is positively associated with PM2.5 concentrations, pointing to pollution centralization and congestion effects dominating the mitigating effects of mode-shifting associated with density. Other built environment variables, such as the proportion of road intersections, degree of mixed land use, and density of bus stops, are all positively associated with PM2.5 concentrations while distance to nearest primary or sub-center is negatively associated. Regional heterogeneity shows that suburban jiedao have lower PM2.5 concentrations when a subway station is present.


Author(s):  
Jici Wang ◽  
Chun Zhang ◽  
Ching-Ning Wang ◽  
Ping Chen

This paper examines the role of creative milieu and cultural heritages in the development of Chinese cultural industry. Through case study of Beijing’s Nanluoguxiang, where several arts institutions and theaters concentrate, it depicts the birth and growth of a creative place for free artists in the institutional changing of Chinese cultural setting. Based on field survey data from artists, managers and visitors, it shows the spouting and growth of local creativities in a transitional economy needs atmosphere of tolerant and frequent social gathering, especially in spaces like cafes and bars. It also suggests that making a good use of local cultural and creative resources like heritages and folk customs enables the superiority of localization standing out in the wave of globalization. The key findings indicate that the newly-built creative parks might be useful to breed the creative products, but not necessary.


2010 ◽  
Vol 4 (3-4) ◽  
pp. 51-58
Author(s):  
Matteo Vittuari ◽  
Andrea Segrè

The paper aims to analyze the main barriers and opportunities for the modernization of the agricultural sector of Republika Srpska with a specific focus on the role of small farms.A particular attention has been given to specific elements related to the human, social, and institutional capital. Methodologically the work has been based on an extensive desk research, on the use of a field survey and on a number of personal interviews with national experts and professionals. Overall the investigation has also greatly benefited from the theoretical framework elaborated by R.Yin within the “case study methodology”.


1987 ◽  
Author(s):  
William A. Worrall ◽  
Ann W. Stockman

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