Urban wildlife ecology and conservation:A brief history of the discipline

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.     

Terrestrial vertebrates in urban ecosystems: developing hypotheses for the Gwynns Falls Watershed in Baltimore,Maryland

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.     

Open space conservation in urban environments: lessons from Thousand Oaks,California

The conservation of large amounts of natural open space presents a significant challenge to local government, particularly in rapidly growing communities. In Thousand Oaks, California, over 12,000 acres of natural open space have been preserved within the City's planning area, while simultaneously accommodating approximately 116,000 residents.The purpose of this paper is to describe the factors that have contributed to open space preservation by local government in Thousand Oaks. These factors include community initiative and support, open space conservation policies, diverse implementation techniques, creation of a local agency for open space stewardship, experience and commitment of staff, inter-agency agreements, large landholdings, and topography. This study highlights the need for a multi-faceted, integrated and long-term approach to open space conservation, based on public support. Many of the factors outlined in this paper may be applicable in other communities that are trying to balance economic growth with the conservation of natural landscapes.     

Annual and seasonal habitat use of Columbian black-tailed deer in urban Vancouver, Washington

We investigated habitat use of Columbian black-tailed deer in urban Vancouver, Clark County, Washington, at 3 spatial scales: (1) placement of the annual home range within the landscape mosaic, (2) annual and seasonal locations of deer within the annual home range, and (3) short-term use of critical habitats (fawning areas) within seasonal ranges. Annual home range sizes of deer were 162 ha (SD = 133; 95% minimum convex polygon; MCP) and 266 ha (SD = 228; 95% adaptive kernel; AK) for does, and 756 ha (SD = 290; MCP) and 1,235 ha (SD = 382; AK) for bucks. Home range composition of does did not differ from the study area; home ranges of bucks contained more Natural ecological land-use cover types (ELUs) than did the study area. Within home ranges, both does and bucks used Natural ELUs more often than expected by their occurrence in the home range, both annually and seasonally. During the fawning season, does were also found in Natural ELUs more often than expected. Clark County-designated habitat corridors differed from both the study area and deer home ranges in habitat composition, primarily by containing more Natural and other undeveloped ELUs. Deer were located in habitat corridors more than expected. Deer in urban areas appear to use undeveloped habitat types for security. Management that maintains Natural ELUs, such as establishment of wildlife corridors, can provide important habitat components for black-tailed deer in urban habitats.     

Theorizing command-and-commodify regulation: the case of species conservation banking in the United States

State-directed but market-oriented forms of regulation, especially environmental examples like cap-and-trade and ecological offsetting, have proliferated in the past two decades, but sociologists have been slow to theorize these broad institutional shifts. This article offers a framework for explaining these processes of regulatory marketization. First, I argue that institutions of this sort are examples of what I call command-and-commodify regulation, a mode of regulation that distinctively hybridizes economic and authoritative dimensions of power. Second, I explain how and why one example of command-and-commodify regulation, species conservation banking, emerged and remained concentrated in California, but did not so easily develop in other American states. Finally, abstracting from the case, I argue that the concept of market reconstruction is useful for developing a more general theory of the ways that social conflicts and mobilization reconfigure regulatory power and thus give rise to new modes of regulation. Together, a theory of command-and-commodify regulation and market reconstruction may be useful for explaining the development of a wide variety of environmentally focused and other regulatory institutions.     

Lifestyle and home energy conservation in the United States: the poor accept lifestyle cutbacks while the wealthy invest in conservation

The extent to which United States consumers have taken lifestyle cutbacks in eleven expenditure areas as a result of higher energy prices is examined. Data are from a general population sample survey of 8,392 households in ten western states, covering approximately 24 percent of all U.S. households. It was found that an index summarizing the extent to which respondents had taken lifestyle cutbacks was somewhat related in a positive direction to making temporary home adjustments to save energy, but was not related to taking permanent home-related energy conservation actions. The findings bring into question whether a market-oriented conservation policy will increase the taking of conservation actions, but also raise a disturbing question about existing tax credit programs.     

Strategies for urban conservation: A case example of George Town, Penang

George Town, Penang has more than 200 years of urban history and the largest collection of heritage shophouses in Southeast Asia. These heritage buildings have remained unchanged since the 1800s in spite of the lack of conservation legislation. The objective of this paper is to determine which public policy instruments have been effective in protecting the urban heritage of George Town. In particular, the role played by the Control of Rent Act, 1966, is evaluated. Upon examination of records on property transaction, rent-control records, development applications and demographic trends, no conclusive evidence was found that this Act was instrumental in protecting heritage buildings. Instead it was the unintentional effects of various development policies that saved George Town's urban heritage.     

Urbanised soundtracks: youth popular culture in the African city

This article interrogates the participation of youth in constructing and defining the African urban landscape. It seeks to examine youth popular culture and performance practices that combine indigenous sound aesthetics with enactments of cultural memory to construct the urban landscape of Botswana. Particularly, the article examines youth cultural and expressive forms such as hip-hop and Kwaito musical genres, popularised traditional music, and the satirical dramatic impersonations of radio personality Dignash Morapedi. These performances elaborate African syncretic formations that underscore the power of African popular culture to integrate, reinvigorate, and transform various social spaces and identities. Urban youths use these performance forms to demonstrate how innovative practices could be used to interrogate social realities such as unemployment, poverty, and HIV/AIDS. Using the notion of “urban noise,” the article teases out a strategy of critique that articulates the various ways that the youth acoustically construct, produce, and navigate the African city.     

Rural ageing in the United States: Trends and contexts

This paper examines rural population ageing in the United States with a particular focus on the contrasting contexts in which older rural residents live. We compare the characteristics of the older population by rural versus urban residence, and explore challenges and opportunities associated with the ageing of rural baby boomers. The United States is a vast territory, and rural areas in the US are diverse regionally, in poverty and income, principal forms of employment, proximity to metropolitan areas, population size, density and composition, the history of change in these parameters, and a number of other factors that affect the ageing process. Hence, the diversity across rural areas is an important consideration in what affects the well being of rural elderly individuals, as well as the community-level impacts of rural ageing. Further, the characteristics of the older rural population help shape community and rural development outcomes for diverse rural communities. We use data from various US Census Bureau sources, and cite other studies to provide a demographic overview of ageing in the rural United States, and to analyze how this situation differs in varying socio-demographic and regional contexts. In the concluding section, we focus on policy implications associated with rural ageing.     

Members Only: Gated Communities and Residential Segregation in the Metropolitan United States1

Using the American Housing Survey for 2001 and Census 2000, I examine the link between gated communities and residential segregation. I hypothesize that gating and segregation are defined by similar mechanisms, thus reinforcing urban inequality in U.S. cities. The results, however, indicate a more complex relationship. On the one hand, there are common mechanisms behind the two processes: the pursuit of higher property values, fear of crime, and fear of increased social heterogeneity. An increase in percent recent immigrants leads to higher levels of both segregation and gating. On the other hand, factors such as region, percent black, percent Hispanic, percent college graduates, and functional specialization affect the two processes differentially. Although segregation is less pronounced and declining in the U.S. urban Southwest, gated communities are much more prominent there. The results challenge the notion that the declines in residential segregation in recent decades indicate social progress.     

Vegetative characteristics of urban land covers in metropolitan Tucson

In this study we developed a methodology that associated land cover categories to aerial photographs. We selected 4, 42-mile (10 km2) study sites within metropolitan Tucson, Arizona for our pilot study. Land uses within these sites covered the range of landscapes found within Pima County, Arizona, although not necessarily in proportions representative of the metropolitan area. We designated land cover categories within the pilot sites based on recent (March, 1990) aerial photographs and developed a geographical information system (GIS) database of these land cover categories. We measured vegetation attributes on randomly selected samples within each land cover category and classified vegetation occurring on specific land cover categories according to the Brown et al. (1979) system. Our land cover classification system was nominal with a hierarchical structure, facilitating organization and providing flexibility for adding new categories.Our results showed that although neighborhood parks contained the greatest vegetated areas within our four study plots, very low density housing (4 acres/house), rivers whose banks were partially stabilized, naturally occurring washes (with no bank stabilization), and natural open space contained the highest percentage of native vegetation. Within our four study sites, low density housing (4 acres/house), rivers with partially stabilized banks, naturally occurring washes (no bank stabilization), and natural open space land cover categories contained the most area that was covered with vegetation providing escape cover.     

Quantifying urban forest structure,function, and value: the Chicago Urban Forest Climate Project

This paper is a review of research in Chicago that linked analyses of vegetation structure with forest functions and values. During 1991, the regions trees removed an estimated 5575 metric tons of air pollutants, providing air cleansing worth 9.2 million. Each year they sequester an estimated 315 800 metric tons of carbon. Increasing tree cover 10% or planting about three trees per building lot saves annual heating and cooling costs by an estimated 50 to 90 per dwelling unit because of increased shade, lower summertime air temperatures, and reduced neighborhood wind speeds once the trees mature. The net present value of the services trees provide is estimated as 402 per planted tree. The present value of long-term benefits is more than twice the present value of costs.     

The importance of traffic corridors as urban habitats for plants in Finland

Traffic corridors have been recognized as floristically rich with endangered and rare species included. The aim of this study is to treat traffic corridors as habitats and estimate their importance for diversity of vascular plants on municipal level. The material is derived from the comprehensive studies of urban floras in the cities of Vantaa, Kerava and Järvenpää during the 1990s in southern Finland. The material consists of over 190,000 species records (704–771 species). The material was divided in two groups: the ones with occurrences in traffic corridors (TC) and the others with no occurrences (NTC). The percentage of the traffic corridor plants of the total flora is almost the same in all the three cities: two thirds in traffic corridors and one third not in traffic corridors. The explanation may be the general floristic similarity of the cities. The two groups differ ecologically from each other. The association of plants with traffic corridors varies according to the ecology of the species. About 100 plants have more than 50% of their occurrences in traffic corridors. In Järvenpää, a group of four Carex-species was intensively mapped. 46 occurrences out of 50 were found in traffic corridors. A case study showed the difficulties in management of endangered species on a roadside site. The usual extensive management techniques were not sustainable for the survival of the species. Instead, a much more intensive management was needed.     

Sustainable landscaping programs in the United States and their potential to encourage conservation and support ecosystem services

Sustainable landscaping programs are voluntary initiatives that recommend a set of practices to improve the environmental quality of urban ecosystems by providing landscaping materials, guidelines, and educational resources. Our goal was to examine the recommendations and outcomes of these programs in the United States and their value for encouraging conservation practices in residential ecosystems. We conducted a comprehensive web search and identified 193 sustainable landscaping programs in the United States. Programs aim to increase native species richness, affordably manage stormwater runoff, and offer residents meaningful experiences with nature. Sustainable landscaping programs present many opportunities to engage people with local ecological knowledge and conservation practices, provide accessible spaces for environmental education, cultivate interdisciplinary research collaborations, and advance inclusion in conservation. However, assessments of their ecological value are rare, leaving many questions surrounding the benefits to biodiversity and water quality afforded by participation. Many programs also require investments in landscaping materials and certification fees that might limit participation by some households. Future work should examine how recommended practices influence urban biodiversity, identify and address barriers to participation, and generate social-ecological knowledge that can inform future programs.

     

Aging in the United States Today

Summary

As the demographics of aging change in the United States, the number of persons over the age of 65 will continue to grow. By 2030, one in every five persons will be over the age of 65. Several factors are important when considering the reality of these demographic changes. First, successful aging, given new medical technologies, is more probable today than it was for our parents and grandparents. Second, the range of diverse populations within the aging communities has become recognized. Third, generational differences impact who cares for the elderly. Fourth, baby boomers, who will soon turn 65, will likely have a huge impact on society. And lastly, spiritual matters are important as we approach and enter old age.     

Indigenous Religions in the United States

Delving into the life and legacy of Henry VIII is both complex and captivating. People seem compelled to learn more abut his critical contributions and controversial conduct that range from the significant to the scandalous. Reflecting on the history of the world would be incomplete without investigating the events and escapades associated with Henry VIII, whose impact of 500 years ago resonates through today's society and into the future through literature, music, politics, and religion. To view the many facets of Henry VIII, classroom teachers and their students are encouraged to use graphic organizers to provide easy-to-understand visualizations. Eight types of graphic organizers engage learners in student-centered activities that help students make meaning from and show relationships among the diverse attributes of Henry VIII. When combined, the eight graphic organizers equip learners with valuable tools to construct a holistic examination about the history of Henry VIII.     

Racialized parenting in the United States

Contrary to anti-black, cultural deficit logics that frame Black parenting as tied to the reproduction of social disadvantage, research shows that Black parents, and other parents of color, are agentic as they parent in direct response to the dominant racial order of the United States. In this paper, I review this scholarship and primarily focus on how Black parents approach raising children in the racialized worlds that they live in. To mitigate the disadvantages caused by racism, Black parents use various intentional racialized parenting approaches to instill in their children a resilience to a racist social world. The strategies used to cultivate resilience to racism exist in varied social and institutional contexts, and intertwine with how parents understand race, class, and identity. Laborious racialized parenting techniques do not solely matter at the micro-level as such practices are unevenly recognized by white-dominant social institutions. This uneven dynamic indicates how hegemonic norms of American parenting culture fit within a project of racial neoliberalism. Consequently, Black parents are structurally pushed to burden more responsibility to prepare their children to survive a deeply racist and hyper-competitive social world with no guarantee that such intensive, strategic parenting will be rewarded.     

Grandparent-Headed Families in the United States

Abstract

Grandparents are returning to the role of parents in ever-increasing numbers. Custodial grandparents often find themselves isolated from sources of support as they face unique emotional, physical, and financial challenges on a daily basis. Nearly half are grandparents without partners and the majority are caring for two or more young children. Children in the care of grandparents are more likely to experience cognitive, emotional, and physical challenges. Their early traumatic experiences may lead to difficulties in communication and forming attachments.

The Parent Topics Questionnaire is a standardized assessment measure designed to provide parent education group facilitators with specific information about needs, desires, and expectations of participants. Administration of this instrument to four parent groups revealed a high readiness for information among the custodial grandparent population. Based on information obtained from this measure, a holistic program was developed which simultaneously provided services to care-giving grandparents, their young grandchildren, and educational professionals.

Grandparent and grandchildren's groups met weekly and emphasized topics and activities aimed at meeting common needs within these populations. Educational professionals participated in a series of inservice meetings aimed at increasing awareness of needs and strengths of grandparent-headed families, modifying curriculum to more effectively meet grandchildren's needs, and enhancing knowledge of existing resources. Pre- and post-test analysis demonstrate significant positive effects for all involved populations. Grandparents were found to increase in parenting knowledge, perceived levels of social support, willingness to utilize existing resources, and enjoyment of time with their grandchildren. Levels of isolation and perceived depression were decreased. Participating grandchildren demonstrated increased abilities to interact effectively with peers and adults and perceived their interactions with grandparents more positively. Educational professionals reported feeling more informed about custodial grandparent family issues, more confident about interacting with grandparents, and more knowledgeable about existing resources.     

Early Marriage in the United States

Despite drastic changes in the American family, a significant minority of Americans marry early. Using data from the National Longitudinal Study of Adolescent Health (N= 14,165), this study evaluates the prevalence and antecedents of early marriage in the United States. The results indicate 25% of women and 16% of men marry before age 23, and early marriage varies widely across a number of characteristics. Individuals who marry earlier are more likely to be from disadvantaged families, from conservative Protestant or Mormon families, to value their religious faith more highly, to have a high‐school diploma but a lower educational trajectory, and to cohabit before marriage. Scholars and policymakers interested in marriage should pay adequate attention to understanding and supporting these individuals’ marriages.     

Housing Policy in the United States

No abstract available for this article.