Littérature scientifique sur le sujet « Urban-rural invasion »
Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres
Consultez les listes thématiques d’articles de revues, de livres, de thèses, de rapports de conférences et d’autres sources académiques sur le sujet « Urban-rural invasion ».
À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.
Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.
Articles de revues sur le sujet "Urban-rural invasion"
1
Wagner, Sabrina, Dietmar Moser et Franz Essl. « Urban Rivers as Dispersal Corridors : Which Factors Are Important for the Spread of Alien Woody Species along the Danube ? » Sustainability 12, no 6 (11 mars 2020) : 2185. http://dx.doi.org/10.3390/su12062185.
Texte intégralRésumé :
Cities are hotspots of invasions, and this is particularly the case for urban rivers, which are known to serve as corridors for the spread of alien plant species to floodplain forests. Here, we present a case study on woody (shrubs, trees) species invasions across a gradient from a metropolis (Vienna) to rural regions along the Danube River in eastern Austria. In total, we identified 44 native and 25 alien woody species in 75 plots. Five alien woody species occur in at least 10 plots. The most wide-spread ones were species of floodplain forests (Acer negundo, Fraxinus pennsylvanica, and Populus x canadensis), while Ailanthus altissima and Robinia pseudoacacia—which prefer dry sites—were recorded substantially less often. The average level of invasion—i.e., the relative proportion of alien to native woody species in plots—was high across all three study regions. Still, there was a moderate decline of alien woody species richness along the urban—peri-urban—rural gradient. Generalized Linear Mixed Models showed that population density and the proportion of urban habitats in the environs of the plots is significantly positively correlated with the presence of Acer negundo and Ailanthus altissima. Conversely, the occurrence of Robinia pseudoacacia is negatively correlated with surrounding population density and urban habitats. Occurrence of Acer negundo is positively correlated with urban habitats. For Fraxinus pennsylvanica, we found no significant relationships. Our results confirm that gallery forests at river banks are highly susceptible to invasions. We argue that managing alien woody species in urban and peri-urban sites is not appropriate and useful, given that re-invasion is likely in most cases (from adjacent urban green spaces). We acknowledge that this recommendation entails the implicit recognition that gallery forests along urban sections of the Danube will contain a substantial—and likely further increasing—proportion of alien woody species.
2
Xie, Peiyun, Ting Liu, Hongyu Chen et Zhiyao Su. « Community Structure and Soil Mineral Concentration in Relation to Plant Invasion in a Subtropical Urban and Rural Ecotone ». Forests 12, no 2 (7 février 2021) : 185. http://dx.doi.org/10.3390/f12020185.
Texte intégralRésumé :
Alien species invasion affects local community biodiversity and stability considerably, and ecosystem services and functions will accordingly be dramatically changed. Many studies have reported a correlation between invasibility and the chemical nature of soil, but the influences of understory plant community structure and soil trace element concentrations on invasibility have not been fully explored. Landscape heterogeneity in the urban and rural ecotone may alter the invasion process, and assessing the invasibility of different types of native forests may lead to a better understanding of the mechanisms by which native species resist invasion. We compared the composition, structure, diversity and stability of the understory community in abandoned fallows, severely invaded by Mikania micrantha and Borreria latifolia, and adjacent natural and planted forests in the urban and rural ecotone of Eastern Guangzhou, China. Additionally, we quantified mineral element concentrations in the topsoil (0–25 cm) most influenced by the root system of understory communities in the forest stand types. Abandoned fallows had the highest concentrations of available ferrum (Fe) and available boron (B) and the lowest concentration of total mercury (Hg) Hg among the three stand types. In contrast to various species diversity indices, the understory structure of the three stands better explained differences in community invasibility. Average understory cover significantly differed among the three stand types, and those types with the greatest number of stems in height and cover classes 1 and 2 differed the most, indicating that seedling establishment may deter invasion to a certain extent. CCA (canonical correspondence analysis) results better reflected the distribution range of each stand type and its relationship with environmental factors, and available Fe, available B, exchangeable calcium (Ca), exchangeable magnesium (Mg), cover, available copper (Cu) and total Hg , were strongly related the distribution of native and exotic understory species. Invasion weakened community stability. The stability index changed consistently with the species diversity index, and abandoned fallows understory community stability was lower than the other stand types. According to our results, both soil mineral element concentrations and community structure are related to alien species invasion. Against the backdrop of urbanization and industrialization, this information will provide forest management and planning departments with certain reference points for forest protection and invasive plant management.
3
Meagher, Kate. « The Invasion of the Opportunity Snatchers : The Rural-Urban Interface in Northern Nigeria ». Journal of Contemporary African Studies 19, no 1 (janvier 2001) : 39–54. http://dx.doi.org/10.1080/02589000124126.
Texte intégral
4
Nega, Worku, Mulugeta Tenaw, Yeneneh Hunie, Sayeh Kassaw Agegnehu et Reinfried Mansberger. « Evaluating Institutional Dichotomy between Urban and Rural Land Administration in Amhara Region, Ethiopia ». Sustainability 13, no 16 (23 août 2021) : 9431. http://dx.doi.org/10.3390/su13169431.
Texte intégralRésumé :
Institutional setup in the land administration system plays a crucial role in the successful functioning of modern land administration. The institutional setup, whether separated for urban and rural land administration or unified, is responsible for implementing the legal and policy framework. In most regions of Ethiopia, including the Amhara National Regional State, the institutional setup is separated, which results in increasing difficulties to administer land efficiently. The purpose of this study was to assess the challenges and opportunities of the institutional dichotomy between urban and rural land administration in the Amhara region. Primary and secondary data were used in the study. Questionnaires, focus group discussions (FGDs) and interviews with key informants were applied to collect the data. As the findings of the study revealed, about 55% of the respondents agreed that the integration between urban and rural land administration institutions is weak. In addition, 38% of the respondents also confirmed that the integration between the two independent institutions is very weak. The institutional separation between urban and rural land has opened the door for land invasion and informal settlement in peri-urban areas. The study also identifies overlapping job titles, wastage of human and material resources, and promulgation of contradicting urban and rural land laws as the challenges in the region due to the dichotomy of land administration between urban and rural. Although administering urban and rural land in separate institutions helps for minimizing the workload, the findings tend to administer land in a unified institution and within an independent ministry.
5
Mukherjee, Swarnali, Soumyajit Banerjee, Parthiba Basu, GoutamK Saha et Gautam Aditya. « Lantana Camara and Butterfly Abundance in an Urban Landscape : Benefits for Conservation or Species Invasion ? » Ekológia (Bratislava) 34, no 4 (1 décembre 2015) : 309–28. http://dx.doi.org/10.1515/eko-2015-0029.
Texte intégralRésumé :
Abstract Urban landscapes host a range of diverse plants that, in turn, facilitate maintenance of different species of pollinators, including butterflies. In this context, the importance of Lantana camara, an invasive plant species, was assessed highlighting its role in maintenance of butterfly diversity, using Kolkata, India as a study area. Initial study revealed consistent presence of L. camara in both urban and rural sites with at least 25 different butterfly species association. The proportional relative load and the preferences of butterfly species for the each plant species were inclined towards L. camara. Irrespective of the sites, the diurnal and seasonal variations in the butterfly species abundance varied with the flowering pattern of L. camara. A positive correlation of different butterfly species with the flowering time and number of L. camara was for all the sites. The segregation of the L. camara associated butterfly species was made following discriminant function analysis using the extent of flower density of L. camara as explanatory variable. Despite being an invasive species, it is apparent that L. camara can be a prospective host plant that facilitates sustenance of butterflies in both urban and rural sites. Thus, existence of L. camara in urban gardens and forests may prove beneficial in sustenance of the butterflies.
6
Ruiz Rincón, Victoria, Joan Martínez-Alier et Sara Mingorria. « Environmental Conflicts Related to Urban Expansion Involving Agrarian Communities in Central Mexico ». Sustainability 11, no 23 (20 novembre 2019) : 6545. http://dx.doi.org/10.3390/su11236545.
Texte intégralRésumé :
Rural territories and cultures have been increasingly sacrificed through depopulation, invasion by infrastructure, and the presence of industries which are incompatible with agriculture. Meanwhile, the expansion of urban space through demographic agglomeration and the concentration of activities in cities is leading to a progressively urbanised world. This article sheds light on the particularities of the relationship between urban expansion and the assault on agrarian modes of existence that survive at the diffuse urban frontiers in Central Mexico. A multiple case study was carried out; nine social-environmental conflicts where an agrarian community resisted the installation of urban infrastructure or city enterprises were analysed through the perspective of Political Ecology and environmental justice. Peasant communities question the political, economic, environmental, and cultural factors of the hegemonic social configuration as urban megaprojects menace their territory. In their struggles, they highlight that urban development undermines the very conditions necessary for the existence of the city, as its social metabolism depends in part on the resources these rural communities are defending.
7
Conan, Michel. « The Urban Invasion of Rural Culture : A Review of Landscape Sociological Research in France, 1970-1987 ». Landscape Journal 12, no 2 (1993) : 131–42. http://dx.doi.org/10.3368/lj.12.2.131.
Texte intégral
8
Lawless, R. I. « Population Geography and Settlement Studies ». Libyan Studies 20 (janvier 1989) : 251–58. http://dx.doi.org/10.1017/s0263718900006750.
Texte intégralRésumé :
Oil wealth has transformed Libya, a desertic and sparsely populated country, bringing dramatic demographic changes (Zoghlami 1979). El Mehdawi and Clarke (1982) and Lawless and Kezeiri (1983) describe and analyse the growing polarisation of the population in the north-west and north-east coastal regions which contain the two largest cities, Tripoli and Benghazi. They show that in recent years spatial duality has been sharply intensified by strong rural to urban migration and also by an increase in interregional migration. The concentration of new development programmes in certain urban centres has been the main cause of the development differential among the regions. As a result the regions which include the most important urban centres have become the most prosperous and the others have become less developed or even depressed. This has been the main cause of the rapid increase in both rural to urban migration and interregional migration. The inhabitants of the less developed regions have continued to move in increasing numbers to those which are more developed. The large majority of migrants who moved from these less developed regions are represented by rural people who have changed their place of residence and their occupation. They have left their work in the rural sector to seek employment in the industrial and service sector. As a result agricultural production has declined. The agrarian sector now employs less than a quarter of the Libyan workforce and the percentage of nomads and semi-nomads has declined to under 10% of the population. Albergani and Vignet-Zunz (1982) have shown that colonial invasion and occupation followed by the Second World War threatened the Bedouin of the Jebel Akhdar with extinction, not through sedentarisation but through the mass migration of a devastated rural population. The advent of oil and the high salary levels available in urban centres further encouraged this tendency. Gannous (1979) studied the movement of Bedouin from rural areas to the town of Al Abiyar and the erosion of Bedouin culture by urban values.
9
Willis, Ian. « Imaginings on Sydney’s Edge : Myth, Mourning and Memory in a Fringe Community ». Sydney Journal 4, no 1 (21 octobre 2013) : 127–40. http://dx.doi.org/10.5130/sj.v4i1.2804.
Texte intégralRésumé :
Sydney’s metropolitan fringe is a theatre for the creation and loss of collective memories, cultural myths and community grieving around cultural icons, traditions and rituals. European settlement took the dreaming of the Aborigines and then had its own dreaming removed by an invasion from the east in the form of Sydney’s urban growth. The re-making of place in and around the fringe community of Camden illustrates the destruction and re-construction of cultural landscapes. Locals dream of retaining the aesthetics of an inter-war country town and in doing so have created an illusion of a historical myth of a ‘country town idyll’. In the new suburbs of Oran Park, Mt Annan and Harrington Park urbanites have invaded the area drawn by developer spin, which promised to fulfil hopes and dreams and never really lives up to the hype. Unfulfilled expectations mean that Sydney’s rural-urban fringe is a zone of transition where waves of invasion and succession have created perceptions of reality and all that is left is imaginings.
10
Skocajic, Dragana, Mihailo Grbic, Jelena Tomicevic, Danijela Djunisijevic-Bojovic et Matilda Djukic. « Elaeagnus umbellata thunb. as the potential invasive species in Belgrade region ». Bulletin of the Faculty of Forestry, no 98 (2008) : 177–88. http://dx.doi.org/10.2298/gsf0898177s.
Texte intégralRésumé :
It is known that invasive plant species, as the species which most often spread and suppress the native species, form stable populations and become dominant firstly by occupying the sites of urban areas, and later on by continuing their invasion to the neighbouring suburban and rural areas. This paper presents the research of biological and ecological characters of Elaeagnus umbellata Thunb., one of the potential invasive species. The phenological observation of this species yield abundance and periodicity and the biometric analysis of fruits and seeds point to a high quality of its generative reproductive material. The analysis of seed dormancy of this species in our conditions, as the significant factor of the control of potential invasiveness, shows its double dormancy and its elimination requires combined chemical treatments and several months of stratification. The study of mechanisms of autumn olive dormancy breaking (overcoming the reproductive barrier) and seed dispersion (overcoming the dispersion barrier) is very significant for the forecast of further dispersion of this species.
Thèses sur le sujet "Urban-rural invasion"
1
Mastalerz, Allison. « The role of ornamental gardening in forest plant invasions across an urban-rural gradient in Southwestern Ohio ». University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1377866412.
Texte intégral
2
Morrell, Susan C. « A Comparison of Vegetation Composition in Urban and Rural Floodplans Following Removal of Chinese Privet (Ligustrum Sinense) ». Digital Archive @ GSU, 2012. http://digitalarchive.gsu.edu/geosciences_theses/42.
Texte intégralRésumé :
An important aspect of restoration ecology is the removal of non-native invasive plants. While restorations in urban areas involve similar challenges to restorations in rural areas, urban efforts also contend with unique issues such as increased fragmentation and decreased seed sources for native species. This study examined efforts to eradicate Ligustrum sinense and allow native vegetation to occupy the landscape. The herbaceous layer was inventoried at study plots in riparian bottomlands of four Atlanta, Georgia, natural areas two years after start of treatment to remove L. sinense. Plant taxa were described and compared to a similar study conducted in a rural area of northeastern Georgia. Significant abundance of L. sinense was recurring at urban sites while recurrence at rural sites was low. Other non-native invasive species, frequently used in urban landscaping, were also occurring at urban sites and not at rural sites.
3
Burton, Michele Lee Samuelson Lisa J. « Riparian woody plant diversity, composition, and structure across an urban-rural land use gradient in the Piedmont of Georgia, US ». Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Fall/Dissertations/BURTON_MICHELE_14.pdf.
Texte intégral
4
Kayanja, Raymond Louis. « Rural African perceptions of the contemporary metropolis ». Diss., 2009. http://hdl.handle.net/10500/11988.
Texte intégralRésumé :
This dissertation focuses on utopian versus dystopian perceptions of rural indigenous African societies with regard to the modern metropolis. Since the evolution of the modern metropolis, rural African societies have undergone significant and complex cultural changes that have dislodged rural cultures from being perceived in terms of the traditional notion of fixity. This has lead to the modern city being seen as either utopian or dystopian by rural African societies. The dissertation questions the “utopianess” of the modern metropolis with a special focus on its central idea of “progress”. Special attention is given to artists who explore this cultural phenomenon in the utopian–dystopian paradigm. The dissertation goes further to address the cultural impact of recent technological developments on rural and urban societies, the researcher’s perceptions of this impact and how this has contributed to the dynamics that characterise the cultures of contemporary rural and urban migrantsArt History, Visual Arts & Musicology
M.A. (Visual Arts)
Livres sur le sujet "Urban-rural invasion"
1
T, Hilda Caldera. Invasiones urbanas en Tegucigalpa. Tegucigalpa, Honduras : Editorial Guaymuras, 1992.
Trouver le texte intégral
2
Barry, Terry B. Looking West. Sous la direction de Christopher Gerrard et Alejandra Gutiérrez. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780198744719.013.38.
Texte intégralRésumé :
This chapter outlines some the Irish evidence for later medieval settlement and society and the seismic shift in settlement which came about as a result of invasion and then conquest of the island by the Anglo-Normans, beginning in ad 1169. There was always a particular defensive aspect to this settlement, both in a rural and in an urban context, but the economy of the Anglo-Norman generally flourished until crisis in the second half of the fourteenth century. This discussion covers castles, tower houses, moated sites, rural settlement, towns, and churches before describing trade and contact with Britain. Pottery imports are highlighted, concluding that Ireland is to be seen as anything but peripheral to the broader context of medieval Europe.
Chapitres de livres sur le sujet "Urban-rural invasion"
1
Huebner, Cynthia D., David J. Nowak, Richard V. Pouyat et Allison R. Bodine. « Nonnative Invasive Plants : Maintaining Biotic and Socioeconomic Integrity along the Urban-Rural-Natural Area Gradient ». Dans Urban-Rural Interfaces, 71–98. Madison, WI, USA : American Society of Agronomy, Soil Science Society of America, Crop Science Society of America, Inc., 2012. http://dx.doi.org/10.2136/2012.urban-rural.c5.
Texte intégral
2
Wiseman, Sam. « Introduction ». Dans Locating the Gothic in British Modernity, 1–12. Liverpool University Press, 2019. http://dx.doi.org/10.3828/liverpool/9781942954897.003.0001.
Texte intégralRésumé :
This introduction situates the project within existing scholarship on the Gothic, modernity, and the British landscape. It stresses that the book can be differentiated from other studies of Gothic modernity both in its de-privileging of literary modernism and its specific emphasis upon place. There follows a chapter summary emphasizing thematic linkages between chapters, including the concepts of the uncanny, animism, the weird and the eerie, which are elucidated with reference to secondary texts by authors including Sigmund Freud and Mark Fisher. It also notes the dialectical character of the book’s themes and content, as it traces the evolution of relationships such as those between the Gothic and the modern, the rural and the urban, invasion and emergence, concealment and revelation.
3
Robinson, Max, Keith Hunter, Michael Pemberton et Philip Sloan. « Oral cancer ». Dans Soames' & ; Southam's Oral Pathology. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199697786.003.0008.
Texte intégralRésumé :
The term ‘oral cancer’ encompasses all malignant neoplasms affecting the oral cavity. The majority, greater than 90%, are squamous cell car¬cinomas. The remainder are uncommon and comprise minor salivary gland adenocarcinomas, malignant melanoma, sarcomas, haemato-logical malignancies, and metastases to the oral cavity from cancers at other sites. Oral squamous cell carcinoma is a malignant epithelial neoplasm that arises from the lining mucosa of the oral cavity. The tumour shows vary¬ing degrees of squamous differentiation and is characterized by invasion of local structures and metastasis to regional lymph nodes, followed by metastasis to other organ systems (e.g. lungs and bones) later in the course of the disease. Epidemiological data pertaining to oral cancer can be difficult to evalu¬ate because of variations in the methods of data collection (Box 3.1). Notwithstanding these confounding variables, a database produced by the International Agency for Research on Cancer (GLOBOCAN), esti-mated there were over 400,000 new cases of lip, oral, and pharyngeal cancer worldwide in 2012, placing the disease in ninth position with breast, prostate, lung, colorectal, cervical, stomach, liver, and uterine cancer being more common. These data suggest that oral cancer is uncommon, but there are enormous variations worldwide. Whereas oral cancer is relatively uncommon in the UK, accounting for 2% of all cancers, in India and parts of South-East Asia it is the most common malignant neoplasm and accounts for around a third of all cancers. Furthermore, the incidence rates for large countries, such as India and the USA, conceal regional and ethnic variations. For example, incidence rates tend to be higher in urban as opposed to rural communities, and in the USA are higher for blacks than whites. In the United Kingdom, inci¬dence rates are slightly higher in Scotland than in England and Wales. In the United Kingdom the incidence of oral cancer is 9 per 100,000 of the population, which represents around 6,800 new cases per annum. The disease is more common in men than in women; the male:female ratio is currently 2:1. Oral cancer incidence increases with age, and the majority of cases (greater than two-thirds) are diagnosed after the age of 50 years old; less than 5% occur in individuals below the age of 40 years old.
4
Afonso, Luca, Karen J. Esler, Mirijam Gaertner et Sjirk Geerts. « Comparing invasive alien plant community composition between urban, peri-urban and rural areas ; the city of Cape Town as a case study ». Dans Urban Ecology, 221–36. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-820730-7.00013-6.
Texte intégral
5
Scott, Andrew C. « The Future of Fire ». Dans Burning Planet. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198734840.003.0011.
Texte intégralRésumé :
I only encountered the term ‘wildland–urban interface’ a few years ago. It describes situations or physical boundaries where human urban populations and infrastructure impinge on wild vegetated areas. Two specific cases are worth highlighting. One is simply due to the expansion of population centres, where towns and cities continue to spread into rural areas and, in some cases, impinge on natural vegetation. The other situation occurs when individuals or small communities build homes and infrastructure within the bounds of an area of wild vegetation. The ultimate getting away from it all! This wish for exclusivity and privacy is growing at an ever-increasing rate and is becoming a major global challenge. And even before the houses and communities encroach into the wilderness, the natural vegetation is experiencing the effects of human activity and climate change. Simply put, an invasive plant is a plant that has gone wild in an area where it never occurred naturally before being introduced. We are all familiar with bringing exotic plants into our garden, but less aware of what happens to the plants if they spread outside our own area. In general this may not be a problem. Across many parts of the world, introduced plants are confused with natives. Rhododendrons, for example, are very widespread in the UK, and in some places they may also be considered a ‘weed’. But they were introduced into our gardens from China. In any case, what does it really mean to say a plant is native? It isn’t always obvious. While the cultivated species Rhododendron may have been a relatively recent import to Britain, wild forms did exist in England more than 55 million years ago. Equally, we may not realize that a plant is not a native of a region, or what potential problems they may cause. While in some cases such plants may be escapees from our gardens, plants may also have been introduced for another use, such as to provide feedstock for animals. There are those who think that plant invasives are not really a problem, but I would challenge this view in relation to fire.