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1.
Urban wildlife ecology and conservation is a discipline worldwide in scope. Although some attention was given the subject in the early to mid-1900s, most activity in the field is of more recent origin. Many European countries have active programs and activities, including the United Kingdom-Man and the Biosphere (UK-MAB) Urban Forum and The Wildlife Trusts of England, the United Nations Educational, Scientific, and Cultural Organization's MAB Program, and urban ecology research in Germany and Poland. The Netherlands' concept of “ecological landscapes” introduced a new approach to design of urban open space. Durban, South Africa followed with “D'MOSS,” a metropolitan open space system founded on the principles of island biogeography theory. The park connector network of Singapore combines principles of conservation biology and landscape planning. Urban wildlife programs and activities exist in the United States at the federal, state, and local levels as well as in private conservation organizations. The Wildlife Society established an Urban Affairs and Regional Planning Committee in the mid-1970s that later became the Urban Wildlife Committee and then evolved into the Urban Wildlife Working Group. Urban wildlife research is providing knowledge of wildlife and plant populations and communities in urban areas that hopefully will lead to better understanding and greater sustainability of urban ecosystems.  相似文献   

2.
Wildlife abundance has grown for several species that are adapted to human-dominated landscapes. Overabundant wildlife may cause nuisance concerns and property damage, or spread zoonotic diseases such as West Nile virus, particularly at the suburban-rural interface of many communities. Consequently, wildlife damage management has become an important component of the wildlife profession. The complicated biological and human dimensions of human-wildlife conflicts often require partnerships between state and federal agencies, universities, local governments, communities, and private wildlife control professionals. The Northeast Wildlife Damage Management Research and Outreach Cooperative (WDM Coop) was formed to enhance coordination and collaboration among wildlife agencies, universities, and other cooperators to promote consistent, multi-state approaches for resolving wildlife-related concerns. During 2001–2004, 12 projects have been funded to examine issues associated with white-tailed deer (Odocoileus virginianus), black bear (Ursus americanus), Canada geese (Branta canadensis), and beaver (Castor canadensis). These projects have focused on a diverse array topics from community-based efforts to control deer populations, to aversive conditioning techniques for black bears. The Northeast Fish and Wildlife Agency Directors decided to exclude projects focusing on zoonotic diseases and human health issues from the list of WDM Coop activities. There have been focused efforts concerning human dimensions inquiry and outreach publications for wildlife management professionals. As state fish and wildlife agency budgets grow tighter and staff numbers are reduced, we believe more regional centers or wildlife management cooperatives will be formed to meet the increasing demand for services from multiple states with shared issues and concerns.  相似文献   

3.
Urban stresses are known to affect street trees growing in spatially restricted conditions, but even in relatively large parks the cumulative effects by construction, pedestrian uses, and impacts from temporary events may have deleterious long-term effects on plant health. In Columbus, Ohio, the 93 ac (42.3 ha) Franklin Park has been subjected to major construction events and site re-configuration about once per generation—at least six times in 150 years. The first recorded shade- and ornamental tree installations occurred between 1895 and 1910. Those trees, as well as those native to the park, were mapped in 1939, 1989, and again in 2000. Testing the hypothesis that cumulative disturbance reduces tree vigor and growth rate even in open-grown conditions, tree diameters were compared over the sixty year period between 1939 and 2000. Soil compaction and percolation were measured on a 50 m grid, and maps were overlain to determine where site disturbance,buildings, utility lines, paths and pavements had occurred since 1860. Only 8% of the park's surface escaped disturbance; undisturbed areas occurred only in isolated patches. For all trees, trunk diameter increase averaged 0.5 cm/year for 61 years. While late successional species (e.g., Quercus, Acer) had growth rates less than expected for open-grown specimens, many early successional species (Celtis, Populus) were less affected. Despite availability of soil nutrients and lack of canopy or understory competition, tree health was generally poor in all size classes and the majority of the trees present in 1939 were in decline by 2000.  相似文献   

4.
The conversion of customary land into leasehold tenure has sparked intense debates in Zambia and beyond. Growing interest in land in the last decade and half has led to a spike in demand for land across Africa, especially land adjacent to major cities, towns and developed infrastructure. This growing demand for land is gradually being directed at customary land, which well-resourced urban and local elites, as well as foreign investors, are converting from customary to private tenure, raising serious questions about the future of customary land in Africa. This paper discusses the emerging dynamics around customary land conversion drawing from a case study conducted in Chongwe and Chibombo districts in Zambia. Evidence gathered in this study suggest that while the conversion of customary land to leasehold tenure is generating opportunities for the urban elite, a few traditional leaders and international investors, it is, at the same time, creating serious challenges for the majority of the people in the local communities.  相似文献   

5.
This article explores the ways in which the white working-class residents of a suburban English town reflect on their relationships with their British Asian Pakistani Muslim neighbors. Its focus is on how everyday constructions of home become sites for the intermingling of discourses of intercultural conviviality and racism. My contention is that the idea of home has not yet been given the detailed critical attention that it deserves in the sociological literature on everyday manifestations of multiculturalism, conviviality, and racism. My supposition is that a special focus on the idea of home as the site of conviviality offers a productive avenue to analyze how intercultural relationships are formed and how the norms of neighborliness are thought to break down, opening a space for commonplace racialized and racist stereotypes to take hold. The idea of home is central to the rhythm and landscape of the English suburbs. It conjures up the idea of a uniform and aspirational white space. Drawing on this imaginary of home, I shall trace how “white working class” “English,” “Scottish,” and “Anglo-Italian” residents’ everyday constructions of home become embroiled with their relationships with their British Asian Pakistani Muslim neighbors.  相似文献   

6.
7.
Multi-site evaluations, particularly of federally funded service programs, pose a special set of challenges for program evaluation. Not only are there contextual differences related to project location, there are often relatively few programmatic requirements, which results in variations in program models, target populations and services. The Jail Diversion and Trauma Recovery–Priority to Veterans (JDTR) National Cross-Site Evaluation was tasked with conducting a multi-site evaluation of thirteen grantee programs that varied along multiple domains. This article describes the use of a mixed methods evaluation design to understand the jail diversion programs and client outcomes for veterans with trauma, mental health and/or substance use problems. We discuss the challenges encountered in evaluating diverse programs, the benefits of the evaluation in the face of these challenges, and offer lessons learned for other evaluators undertaking this type of evaluation.  相似文献   

8.
The author briefly reviews global trends and issues in migration and describes the work of the International Organization for Migration in supporting economic development in developing countries. The focus is on efforts to improve job skills among prospective labor migrants in developing countries, thereby lessening the pressure to emigrate.  相似文献   

9.
Religion is a dominant force in private and public life in most developing countries. Based on fieldwork in Nigeria, where Christianity and Islam are the two major religions, this article looks at ways in which religion interplays with development and gender equality, and what this means for development policy and practice. First, it explores conflicts and challenges, looking at how religious and indigenous customary values converge as powerful influences, affecting all areas of women's lives. The article goes on to examine the impact of these influences on individual women's choices and aspirations in the context of Nigerian development policy on gender equality. Against this backdrop, it highlights opportunities that can stem from religion, pointing to the ways in which Nigerian faith-based women's organisations are beginning to use religion as a basis for challenging male bias and promoting holistic development.  相似文献   

10.
This paper reports on a special case of restoration of municipal urban planning practice in a post-conflict context. In Kosovo, the administrative environment in which the practice of urban planning and mobility management is embedded is characterized by a high degree of instability. The main reason for this is the transition from a rather centralized form of urban planning, a typical aspect of the Yugoslav planned economy, into a markedly free form of development, characterized by loose control by the authorities. Although this trend can be observed to some extent in many former socialist countries, the Kosovo war in 1999 has dramatically accelerated this process. Given the very European-oriented historic settlement structure, based on a hierarchy of relatively small and compact cities, this trend entails many problems in the areas of environment, infrastructure, mobility, landscape, and property rights.This paper gives an overview of the reasons for this evolution and assesses possible solutions based on field experience from two support programmes (MuSPP by UN-Habitat, and MobKos by the Flemish Government (Belgium)) that are operating in the regional city of Peja/Pe?.  相似文献   

11.
Modeling urban landscape dynamics: A case study in Phoenix,USA   总被引:10,自引:2,他引:8  
Urbanization has profoundly transformed many landscapes throughout the world, and the ecological consequences of this transformation are yet to be fully understood. To understand the ecology of urban systems, it is necessary to quantify the spatial and temporal patterns of urbanization, which often requires dynamic modeling and spatial analysis. In this paper, we describe an urban growth model, the Phoenix Urban Growth Model (PHX-UGM), illustrate a series of model calibration and evaluation methods, and present scenario-based simulation analyses of the future development patterns of the Phoenix metropolitan region. PHX-UGM is a spatially explicit urban landscape model and is a modified version of the Human-Induced Land Transformations (HILT) model originally developed for the San Francisco Bay Area. Using land use and other data collected for the Phoenix area, existing growth rules were selectively modified and new rules were added to help examine key ecological and social factors. We used multiple methods and a multi-scale approach for model calibration and evaluation. The results of the different evaluation methods showed that the model performed reasonably well at a certain range of spatial resolutions (120–480 m). When fine-scale data are available and when landscape structural details are desirable, the 120-m grain size should be used. However, at finer levels the noise and uncertainty in input data and the exponentially increased computational requirements would considerably reduce the usefulness and accuracy of the model. At the other extreme, model projections with too coarse a spatial resolution would be of little use at the local and regional scales. A series of scenario analyses suggest that the Metropolitan Phoenix area will soon be densely populated demographically and highly fragmented ecologically unless dramatic actions are to be taken soon to significantly slow down the population growth. Also, there will be an urban morphological threshold over which drastic changes in certain aspects of landscape pattern occur. Specifically, the scenarios indicate that, as large patches of open lands (including protected lands, parks and available desert lands) begin to break up, patch diversity declines due partly to the loss of agricultural lands, and the overall landscape shape complexity also decreases because of the predominance of urban lands. It seems that reaching such a threshold can be delayed, but not avoided, if the population in the Phoenix metropolitan region continues to grow. PHX-UGM can be used as a tool for exploring the outcome of different urban planning strategies, and the methods illustrated in this paper can be used for evaluating other urban models.  相似文献   

12.
If expanded learning is going to make a real difference, then three key principles must inform how communities overcome challenges and assure equitable access to learning opportunities.  相似文献   

13.
This chapter reviews key issues in professional development in the youth development field, describing important work done over the past two decades and lessons learned from major philanthropic investments in capacity building both nationally and locally.  相似文献   

14.
This paper addresses the issue of how strategic‐level partnerships, such as Local Safeguarding Children Boards, know about and learn from practice. The death of Baby Peter in Haringey exposed the dangers of reliance on numerical performance data alone to inform leaders about the true state of practice. The drivers for, and impact of, regulatory, media and political pressures on front‐line practice and partnership behaviour are discussed with reference to the rise of organisational risk management and ‘rule‐based’ responses (Munro, 2009 ). These are exacerbated by an overload of negative data about child protection systems which results in contagious ‘attention cascades’ which lead to over‐simplification of complex issues and the rush to quick‐fix solutions. This results in compliance‐based responses designed to avoid ‘blame’, based on individualistic analyses of complex situations. Under these conditions, ‘learning’, such as from serious case reviews, can become regressive (how to avoid future culpability) rather than progressive (how to improve knowledge skills and practice). It is argued that understanding and improving practice require strategic partnerships to have engaged with front‐line staff in order to access practice narratives as well as performance numbers, and to achieve an accurate and systemic analysis of the state of practice and how it can be improved. This calls for collective forms of knowing and reflecting and the paper concludes by describing examples. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   

15.
The paper uses the experience of working in Bolivia in the ?eld of child protection to discuss the usage of international contributions and cooperation in the implementation of child protection measures. The challenges and opportunities involved in the implementation of child protection policy and practice in Bolivia are discussed in the context of the realities faced in many countries of South America. The paper describes how a systemic approach was used to provoke change, to maximize the effectiveness of what resources and capabilities already existed and to promote continuing improvement in multidisciplinary cooperation. Where resources are not available for an integrated multisectorial approach dedicated to child abuse and neglect (CAN), leadership and capacity‐building in this way may be used to enable practitioners to transform the challenges of implementation into opportunities for learning and better practice. Copyright © 2003 John Wiley & Sons, Ltd.  相似文献   

16.
17.
The paper summarizes the experience of a 4-year research project conducted in a large Health Maintenance Organization. Obstacles and solutions related to doing research in this type of system are presented. Suggestions for those seeking to conduct research programs in similar settings are provided.  相似文献   

18.
We review the literature on terrestrial vertebrates in urban and urbanizing areas in terms of the new paradigm in ecology that focuses on the origin, spatial pattern, and current influences of habitat patches. Studies of terrestrial vertebrates have documented differences in species composition along an urban-rural gradient and have identified some of the key land use features associated with these differences. We use information from a database developed for the Gwynns Falls Watershed in Baltimore City and County, Maryland to demonstrate how a study of forest-dependent breeding birds could be used to identify mechanisms that account for differences in the bird communities of forest patches in urban areas, and to provide useful information to planners and managers involved in wildlife conservation and management.  相似文献   

19.
Photovoice is part of the growing use of participatory research approaches with people with intellectual disabilities. In this paper we explore the process, opportunities and challenges associated with the use of photovoice with people with intellectual disabilities, illustrated through a research project entitled ‘This Is Me’. Photovoice requires researchers to share power and control in the research process and to tolerate uncertainty. Large investments in time and money are also required. These challenges, however, are outweighed by the benefits of the use of photovoice with people with intellectual disabilities. Photovoice creates a space where people with intellectual disabilities can meaningfully participate and exert control in the research process, and as such is an empowering experience. As a participatory research approach, photovoice is accessible and offers the opportunity for people with intellectual disabilities to develop new skills, confidence and experience inclusiveness in their own terms.  相似文献   

20.
当前,中国面临国际国内两个环境前所未有的机遇与挑战。国际方面,中国适逢第三次工业革命将重组全球分工体系,以及从商品输出向资本输出、从贸易大国走向资本强国的战略机遇;而美国战略转移东亚和国际金融危机对中国构成前所未有的挑战。国内方面,深化改革和巨大内需市场的红利使我国面临前所未有的发展机遇;而中国廉价的生产要素正逐步消失,经济边疆已扩展到全球,经济逐渐显现出高杠杆率,这些都为中国经济发展带来前所未有的挑战。  相似文献   

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