scholarly journals Linking Activity of Common Pipistrelles, Pipistrellus Pipistrellus, in an Urbanised Area With a Nearby Mass Swarming Site

2021 ◽  
Author(s):  
Gréta Nusová ◽  
Marcel Uhrin ◽  
Peter Kaňuch
Keyword(s):  
Urban Area ◽  
Late Summer ◽  
Relative Activity ◽  
Urban Agglomeration ◽  
Spatial Pattern Analysis ◽  
Echolocation Calls ◽  
Pipistrellus Pipistrellus ◽  
Species Activity ◽  
The City

Abstract The Erňa cave, a mass winter hibernaculum and important swarming site of the common pipistrelle, Pipistrellus pipistrellus, is located in the Slovak Karst, near the Košice urban agglomeration in eastern Slovakia. Over the past two decades, the unusual behaviour of late summer or autumn accidental but abundant occurrences of this species have been observed in buildings (so-called invasions) in Košice. It has been hypothesised that these events are related to bats swarming and hibernating in the Erňa cave; however, causality has not been confirmed. We measured the relative activity of bats from the end of the breeding season through the invasions and autumn swarming prior to the onset of hibernation by recording their echolocation calls on car-based transects in order to find any spatial and temporal linkage between activity in the urban area and the swarming site. Over two years we recorded 6,253 sequences with echolocation calls of P. pipistrellus and 5,239 records of other bats along four transects totalling 7,121 km in length. Spatial pattern analysis found that the city agglomeration presented a local hotspot of the species’ activity, especially during the invasion season. Multivariate generalised additive modelling confirmed an increased density of records of P. pipistrellus between the urban area and the hibernaculum in the pre-hibernation season, whereas this pattern was not found to be consistent on the control transects near the city. Contrary to that, other bat species showed little variation in their activity between transects and seasons. The obtained results suggest that the relatively short geographical distance between the urban agglomeration and the large swarming site is likely a clue to the frequent city invasions of the species, although the role of the city as a hibernation area cannot be completely omitted.

scholarly journals Experiências Urbanas: Migrantes e Modos de Viver e Trabalhar na Periferia de Campina Grande na Década de 1960 * Urban Experiences: Migrants and Ways of Living and Working in the Outskirts of Campina Grande in the 1960s

2013 ◽  
Vol 1 (2) ◽  
pp. 89
Author(s):  
HILMARIA XAVIER DA SILVA
Keyword(s):  
Economic Growth ◽  
Urban Area ◽  
Urban Center ◽  
Street Vendors ◽  
Men And Women ◽  
Rural Workers ◽  
Life Conditions ◽  
The 1960S ◽  
The City

<p><strong>Resumo:</strong> A partir do final da década de 1940 e início de 1950, Campina Grande passa por uma significativa urbanização e expansão, favorecida pelo crescimento econômico. Observamos que trabalhadores do campo migraram da zona rural para a zona urbana de Campina Grande à medida que o trabalho na lavoura estava se tornando inviável em razão das secas e viam no centro urbano de Campina possibilidades outras de trabalhar e ter condições de vida mais dignas. Nosso trabalho intenta refletir sobre como alguns populares migraram para Campina Grande no fim da década de 1950 e década de 1960, modificando suas práticas no mundo do trabalho e alterando as características da malha urbana, já que, concentrando-se na periferia, homens e mulheres outrora lavradores passaram agora a desempenhar funções de vigilantes, pedreiros, lavadeiras, vendedores ambulantes, carroceiros, quebradores de pedra, dentre outras.</p><p><strong>Palavras-chave:</strong> Migração, Campina Grande, Trabalho.</p><p> </p><p><strong>Abstract: </strong>From the late 1940s and early 1950s, Campina Grande undergoes a significant urbanization and expansion, favored by economic growth. We observed that rural workers migrated from rural to urban area in Campina Grande in so far as the farming activity was becoming unviable due to droughts and they could see, in the urban center of Campina, other possibilities of working and worthier life conditions. Our work attempts to reflect on how some popular migrated to Campina Grande in the late 1950s and 1960s, changing their practices in the workplace and changing the characteristics of the city, because massing in the periphery, men and women who were ploughpeople in past, have now the role of watchers, bricklayers, washerwomen, street vendors, cart drivers, stone breakers, among others.</p><p><strong>Keywords:</strong> Migration – Campina Grande – Work.</p>

Simulation of the Cooking Organic Aerosol Concentration Variability in an Urban Area

2021 ◽  
Author(s):  
Evangelia Siouti ◽  
Ksakousti Skyllakou ◽  
Ioannis Kioutsioukis ◽  
Giancarlo Ciarelli ◽  
Spyros N. Pandis
Keyword(s):  
Urban Area ◽  
Urban Areas ◽  
Temporal Distribution ◽  
Late Summer ◽  
Field Studies ◽  
Organic Aerosol ◽  
Basis Set ◽  
Cooking Times ◽  
The City ◽  
Lunch Time

&lt;p&gt;Cooking operations can be an important fine PM source for urban areas. Cooking emissions are a source of pollution that has been often ignored and are not included or are seriously underestimated in urban emission inventories. However, several field studies in cities all over Europe suggest that cooking organic aerosol (COA) can be an important component of the total organic PM. In this study we propose and evaluate a methodology for the simulation of the COA concentration and its variability in space and time in an urban area. The city of Patras, the third biggest in Greece is used for this first application for a typical late summer period. The spatial distribution of COA emissions is based on the exact location of restaurants and grills, while the emissions on the meat consumption in Greece. We estimated COA emissions of 150 kg d&lt;sup&gt;-1&lt;/sup&gt; that corresponds to 0.6 g d&lt;sup&gt;-1&lt;/sup&gt; per person. The temporal distribution of COA was based on the known cooking times and the results of the past field studies in the area. Half of the daily COA is emitted during dinner time (21:00-0:00 LT), while approximately 25% during lunch time (13:00-16:00 LT). The COA is simulated using the Volatility Basis Set with a volatility distribution measured in the laboratory and is treated as semivolatile and reactive. The maximum average COA concentration during the simulation period is predicted to be 1.3 &amp;#956;g m&lt;sup&gt;-3&lt;/sup&gt; in a mainly pedestrian area with a high density of restaurants. Peak hourly COA concentrations in this area exceed 10 &amp;#956;g m&lt;sup&gt;-3&lt;/sup&gt; during several nights. The local production of secondary COA is predicted to be slow and it represents just a few percent of the total COA.&lt;/p&gt;&lt;p&gt;&amp;#160;&lt;/p&gt;

scholarly journals On Allotopia: The Spatial Accumulation of Difference in Bixiga (São Paulo, Brazil)

2018 ◽  
Vol 22 (4) ◽  
pp. 387-404
Author(s):  
Jeroen Stevens ◽  
Bruno De Meulder
Keyword(s):  
Urban Area ◽  
Urban Space ◽  
Cultural Practices ◽  
Sao Paulo ◽  
São Paulo ◽  
Urban Analysis ◽  
Territorial Claims ◽  
The City

This article will unfold a longe durée spatial biography of the urban area of Bixiga (São Paulo, Brazil) to probe the particular role of space in the conflation of different cultural practices and territorial claims. The extended case study bridges indigenous, colonial, and postcolonial urbanization as they amalgamated an intricate assemblage of material and cultural strata. Combined historical urban analysis and fieldwork allow to uncover how the resulting urban milieu integrates discrepant urban worlds, perpetually iterating between centrality and marginality, innovation and degradation, oppression and resistance. Building on Foucault’s (1984) conception of heterotopia, Bixiga will surface as an allotopia, a place that accommodates, cumulates, and celebrates a multitude of differences. It sheds light, this way, on more insurgent histories of urbanism, where urban space is piecemeal forged through contentious struggles over space in the city.

scholarly journals The Role of Commerce in the Main Urban Area of Abruzzo: an Intra-Urban Reading

2021 ◽  
pp. 93-103
Author(s):  
Fabrizio Ferrari ◽  
Silvia Iacuone ◽  
Silvia Scorrano ◽  
Marina Fuschi
Keyword(s):  
Urban Area ◽  
Large Scale ◽  
Observation Point ◽  
Shopping Center ◽  
Urban Structure ◽  
Urban Identity ◽  
Trade Sector ◽  
Commercial Distribution ◽  
The City

Since the 1950s, the urban structure of Abruzzo has gradually polarized on the area of Pescara-Chieti, as the expression of a series of location and settlement advantages. There, the trade sector, favoured by a period of expansion of large-scale commercial distribution, represented a powerful vehicle for territorial convergence and cohesion, contributing to the progressive process of marginalization of urban proximity trade. The aim of this work is to go beyond the opposition between suburban shopping center/central urban trade and to propose an interpretation at intra-urban scale that starts from peripheral neighbourhoods and peculiar spaces: They are able, in some cases, to better represent urban identity, but, above all, to provide a favourable observation point from which to promote a balanced and sustainable reorganization of the city.

scholarly journals Variabilidad temporal de la isla de calor urbana de la ciudad de Zaragoza (España)

2021 ◽  
Author(s):  
José M. Cuadrat ◽  
Roberto Serrano-Notivoli ◽  
Samuel Barrao ◽  
Miguel Ángel Saz ◽  
Ernesto Tejedor
Keyword(s):  
Urban Heat Island ◽  
Urban Area ◽  
City Centre ◽  
Heat Island ◽  
Time Data ◽  
Wind Speeds ◽  
Urban Heat ◽  
The City ◽  
Temporal Intensity

We analyse the temporal intensity and variability of the urban heat island (UHI) in the city of Zaragoza (Spain), and assess the role of wind as an important atmospheric conditioning factor. Based on the time data provided by the city’s urban mesoscale meteorological network, the temperature difference between two observatories, one urban (Plaza Santa Marta) and one located on the outskirts of the urban area (Ciudad Deportiva), was calculated for the 2015-2020 period. The results indicate that the temperature in the city centre is very frequently 1º or 2ºC higher than in the surroundings, sometimes even more than 8ºC higher. The UHI is more intense in summer (an average of 2.5ºC per hour) than in winter (an average of 2.2ºC per hour) and more intense during the night than during the day. The maximum UHI value is reached in calm atmospheric situations; however, this value is very limited with winds over 10 km/h and it practically disappears with wind speeds over 50 km/h.

Cultivated Lands within Urban Area

2013 ◽  
pp. 143-157
Author(s):  
G. Mauro
Keyword(s):  
Urban Area ◽  
Urban Areas ◽  
Suburban Areas ◽  
North East ◽  
The North ◽  
Relevant Role ◽  
Agricultural Areas ◽  
The City ◽  
The Town

Several studies put in evidence the relevant role of cultivated lands in the urban areas. Using GIS methodologies in order to map agricultural areas near or within the town, it is possible to analyze their relationship with the urban area. In this study, the author used several different cartography sources, like digital cartography and orthophotos, in order to locate the urban domestic gardens and the terraced landscapes accurately. The study area is a medium city of a North-East Region of Italy, Trieste. Built on a hill morphology, it had a great and fast growth in the 19th and 20th centuries. These changes deeply transformed its landform, mainly reducing its surrounding cultivated lands. At present, the residual terraced landscapes are mainly placed in the north side of the city and they represent a kind of “cultural heritage.” On the contrary, the most important garden areas are located in the terrain embankments of the south suburban areas.

scholarly journals Geoenvironmental safety of urban areas: approaches and implementation

2019 ◽  
pp. 17-23
Author(s):  
V. G. Zaikanov ◽  
T. B. Minakova ◽  
E. V. Buldakova
Keyword(s):  
Urban Area ◽  
Urban Areas ◽  
Environmental Problems ◽  
Space Time ◽  
Safety System ◽  
Ecological Safety ◽  
Time Interaction ◽  
The City ◽  
Important Form

An urban area is the most important form of space-time interaction between society and nature. It is in the urbanized area that environmental problems are most acute. The developed Strategy of Ecological Safety of Russia for the period up to 2025 almost does not consider the role of geoenvironmental factors in the overall safety of the city. This article defines their place in the system of general ecological safety of urban areas. The structure of geoenvironmental hazards is introduced, and an example of their relationship is given. The algorithm of assessment is proposed and a version of the geoenvironmental safety system is developed for the urban area.

PROBLEMS OF STRAY ANIMALS IN NOVOSIBIRSK

2020 ◽  
Vol 4 (2) ◽  
pp. 85-91
Author(s):  
Elena E. Rinchinova ◽  
Diyara A. Takumova ◽  
Irina I. Bochkareva
Keyword(s):  
Urban Population ◽  
Domestic Animals ◽  
Legal Documents ◽  
Quantitative Indicators ◽  
The City

The article discusses main issues of organizing activities for the treatment of stray and street animals in the city of Novosibirsk. The important role of successful solving the problem of stray animals in ensuring environmental comfort and safety of the urban population is noted. Definitions of the concepts “stray animals” and “street animals” are given, the differences between them are emphasized. The main regulatory and legal documents governing the handling of stray and street animals are listed. The ways in which domestic animals get into a stray state are described briefly. The results of the collection and analysis of information on the activities of shelters for stray animals in Novosibirsk are described. The information on the quantitative indicators of the shelters are given. Conclusions on how to solve the problem of stray animals, relying on the latest regulations are drawn.

Жизненное состояние древесных насаждений в условиях города Актобе (Казахстан)

2017 ◽  
Vol 7 (4) ◽  
pp. 51-55
Author(s):  
S. A. Abiev ◽  
S. A. Aipeisova ◽  
N. A. Utarbaeva
Keyword(s):  
Urban Area ◽  
Woody Plants ◽  
Health State ◽  
Urban Habitats ◽  
Resistant Species ◽  
Vital State ◽  
Ulmus Laevis ◽  
Urban Conditions ◽  
The City ◽  
Trees And Shrubs

<p>The purpose of our work is to assess the health state of woody plants growing in different habitats of the city of Aktobe. We have studied the health state of arboreal and shrubby plants growing in various urban habitats; the survey was conducted during 2016-2017 by route-visual method. We performed the analysis of species diversity, abundance and density in urban area. The assessment of health state of the trees was made according to V.A. Alekseev. From your data and literature review we established that such species as Ulmus pinnato-ramosa, Acer negundo, Populus tremula, Populus nigra, and Syringa vulgaris have strong winter resistnce in the territory of Aktobe; we registered that only their apex buds and emds of the shoots were frozen in severe winters. The medium-resistant speices include Ulmus laevis and Acer platonoides. They are less plastic and suffer from late spring and early autumn frosts. The Amorpha fruticosa, Vitis vinifera, and Parthenocissus guinguefolia could be considered as the non-resistant species, since they usually freeze up to the snow cover line. The analysis of the vital state made it possible to assess the resistance to urban conditions of the majority of trees and shrubs registered in urban habitats of Aktobe. According to the preliminary data, the origin of the plant and its winter resistance are of main importance when introducing new species to urban area.</p>

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