Wildlife conservation in urban greenways of the mid-southeastern United States

Goals related to wildlife conservation are stated or implied in many urban greenway plans, but the actual wildlife conservation value of urban greenways is unclear. We surveyed 72 km. of greenway consisting of 38 different greenway segments in six cities in the mid-southeastern United States to determine the presence or absence of red fox (Vulpes vulpes), grey fox (Urocyon cinereoargenteus), and white-tailed deer (Odocoileus virginianus), and to assess characteristics of the greenways and adjacent lands that might promote or limit the presence of these species in each greenway. We focused on fox and deer because these mammals, while habitat generalists, require diverse habitats within close proximity, and are more sensitive to human disturbance and have larger territories than the majority of urban wildlife in this region. Thus, they can serve as indicator species for these habitat values in urban greenways in the southeastern United States. Field observations and scent station inventories revealed that only 18 of the 38 greenway segments had either fox or deer, 12 had only fox, 6 had fox and deer, and none had deer alone. Greenway segments with more forest cover, wider corridors, greater amounts of adjacent natural or seminatural habitat, and forest connectivity between greenways and nonadjacent natural areas were more likely to have fox or deer present. Characteristics associated with fox and deer presence were not independent of each other. Because greenways with such characteristics tend to be surrounded by less urban areas, adjacent land use is a good predictor of fox and deer presence in the surveyed greenways. Whether greenways that are beneficial to fox and deer can be developed in urban settings is strongly site specific, because the greenway variables that appear most essential to these species are often dictated by the preexisting urban form and the vegetation in the vicinity of the greenway. Because the wildlife conservation value of urban greenways depends greatly on factors external to the greenway, greenways that have fox and deer present today may be particularly vulnerable to future changes in surrounding land use.     

Green remnants are hotspots for bat activity in a large Brazilian urban area

Urbanization tends to remove or isolate green areas into fragments or restrict them to narrow corridors inserted in a matrix of buildings. Nevertheless, urban green areas may act as refuges for fauna and bats are among the animals able to use such habitats. Using bioacoustics we investigated the influence of green areas on the activity of insectivorous bats in the metropolitan area of Recife, a conurbation of 4 million people in the Atlantic forest of Northeastern Brazil. Bat activity was statistically higher in green areas, based on calls (t?=?2.5298, p?=?0.0165), but not on feeding buzzes (t?=?1.8132, p?=?0.0817) or social calls (t?=??1.5551, p?=?0.1329). Several species were able to persist in an urban matrix and calls were classified into 16 sonotypes, belonging to five families (Emballonuridae, Molossidae, Noctilionidae, Phyllostomidae and Vespertilionidae). However, activity was significantly more associated with areas with vegetation, indicating that green remnants are hotspots for bat activity. Our results indicate that most insectivorous bats have a biased use of the urban landscape and the maintenance of urban green areas is essential to preserve them and the environmental services they provide.     

How Not to Establish a Subfield: Media Sociology in the United States

US-American sociology has largely failed to examine the transformation of mediated communication of the past 20 years. If sociology is to be conceived as a general social science concerned with analyzing and critically scrutinizing past, present, and future conditions of collective human existence, this failure, and the ignorance it engenders, is detrimental. This ignorance, we argue, may be traced back to the weak self-identity, institutionalization and position of media sociology in the discipline. Our argument here is threefold: 1) There was an opportunity structure for specialization, that is, a venerable research tradition in media sociology since the first half of the twentieth century. This tradition links back to classics in sociology and peaked at a time (1970s and 1980s) when the discipline differentiated institutionally and many new sections emerged in the American Sociological Association. 2) Despite this tradition, media sociology has not become established in sociology in the United States until recently. 3) Lastly, we locate reasons for non-establishment on three distinct but interconnected levels: the history of ideas in media sociology, institutional/disciplinary history, and disciplinary politics.     

Trade unionism in Canada and the United States: a reply to Bowden

Gary Bowden's (1989) comprehensive report on opinion poll questions bearing on Canadian trade unionism is presented in the context of a criticism of my earlier comparative discussion of the reasons why union density in Canada is much higher than in the United States. He contends that my emphasis on value differences in trying to account for the greater strength of unionism (and socialism) in Canada is wrong since, countering my expectations, survey findings do not demonstrate that Canadians are more sympathetic to unions than Americans. These results, however, do not surprise me or serve as a basic challenge to my analysis (Lipset, 1986). In my recent effort to evaluate the many differences in institutions and values in the two countries, I, too, indicate:
Curiously, given the large difference in union strength across the border, questions inquiring about attitudes toward unions, their power, and the outcomes of strikes that have been posed by the Gallup polls, Decima and CRI, Harris, NORC, and the Wright-Myles studies do not show Canadians as more pro-union than Americans. Some even find the population in the north less approving of unions and more concerned about union power, which in fact is much greater there than in the northern [sic] nation. (Lipset, 1989; 1990a: 69). [I must apologize here for an obvious error, northern clearly should have read southern].     

Butterflies in the city: a review of urban diurnal Lepidoptera

Human migration to urban centers has resulted in diverse environmental disturbances that affect biodiversity. Although urbanization has been highlighted as one of the main drivers of biodiversity endangerment, this topic is still poorly studied in many countries. In order to establish the status quo of the ecology of butterflies in urban centers, we gathered publications focused on urban butterflies (Lepidoptera). We compiled a total of 173 studies from 37 countries and more than 110 urban areas, including published papers and theses (1956–2015). Most papers (69 %) addressed ecological topics, 14 % were focused on biological conservation, and 17 % corresponded to species lists. In summary, most studies revealed a negative impact of urbanization intensity on butterfly diversity (richness and abundance). In fact, we found studies reporting local extinctions due to urbanization, highlighting the causes related to them. The study of charismatic urban wildlife groups, such as butterflies, is a promising field, as there are still important gaps in our comprehension of the ecological patterns and processes that occur in urban areas. Undoubtedly, understanding the response of butterflies to urbanization will aid in the development of urban biodiversity management, planning, and conservation strategies worldwide, which together with knowledge of other wildlife groups and socioeconomic variables, will lead us to more sustainable, livable, and biodiverse cities.     

Long-term care policy and financing as a public or private matter in the United States

Effective approaches to assure adequate resources, infrastructure, and broad societal support to address chronic care needs are volatile and potentially unpopular issues that can result in many losers (those getting far less than they want) and few winners (those who gain access to scarce societal resources for care). In the United States, debates on long-term care involve a complex set of issues and services that link health, social services (welfare), and economic policies that often pit public and private sector interests and values against one another. Yet long-term care policies fill a necessary function in society to clarify roles, expectations, and functions of public, non-profit, for profit, individual, and family sectors of a society. By assessing and developing policy proposals that include all long-term care system dimensions, a society can arrive at systematic, fair, and rational decisions. Limiting decisions to system financing aspects alone is likely to result in unforeseen or unintended effects in a long-term care system that stopgap "fixes" cannot resolve. Three underlying policy challenges are presented: the need for policymakers to consider whether the public sector is the first or last source of payment for long-term care; whether government is seen primarily as a risk or cost manager; and the extent to which choice is afforded to elders and family caregivers with regard to the types, settings, and amount of long-term care desired to complement family care.     

Long-Term Care Policy and Financing as a Public or Private Matter in the United States

Summary

Effective approaches to assure adequate resources, infrastructure, and broad societal support to address chronic care needs are volatile and potentially unpopular issues that can result in many losers (those getting far less than they want) and few winners (those who gain access to scarce societal resources for care). In the United States, debates on long-term care involve a complex set of issues and services that link health, social services (welfare), and economic policies that often pit public and private sector interests and values against one another. Yet long-term care policies fill a necessary function in society to clarify roles, expectations, and functions of public, non-profit, for profit, individual, and family sectors of a society. By assessing and developing policy proposals that include all long-term care system dimensions, a society can arrive at systematic, fair, and rational decisions. Limiting decisions to system financing aspects alone is likely to result in unforeseen or unintended effects in a long-term care system that stopgap “fixes” cannot resolve. Three underlying policy challenges are presented: the need for policymakers to consider whether the public sector is the first or last source of payment for long-term care; whether government is seen primarily as a risk or cost manager; and the extent to which choice is afforded to elders and family caregivers with regard to the types, settings, and amount of long-term care desired to complement family care.     

Long-term immigration to the United States: new approaches to measurement

"The United Nations has recommended the measurement of types of international migration using demographic criteria, including length of stay and purpose of travel. Information systems at the U.S. Immigration and Naturalization Service (INS) have the potential to provide a basis for documenting these demographic characteristics, in particular, length of stay of temporary migrants to the United States. This article analyzes these characteristics of selected categories of nonimmigrant aliens. The results of the analysis are used to produce series of estimates of alien immigration that conform more closely to the U.N. recommended definitions and better represent demographic concepts of long-term immigration. A strategy for measuring emigration of aliens from the United States using INS information systems is also described."     

Dynamic heterogeneity: a framework to promote ecological integration and hypothesis generation in urban systems

Urban areas are understood to be extraordinarily spatially heterogeneous. Spatial heterogeneity, and its causes, consequences, and changes, are central to ecological science. The social sciences and urban design and planning professions also include spatial heterogeneity as a key concern. However, urban ecology, as a pursuit that integrates across these disciplines, lacks a theoretical framework that synthesizes the diverse and important aspects of heterogeneity. This paper presents the concept of dynamic heterogeneity as a tool to explore how social and ecological heterogeneities interact and how they together act as both an outcome of past interactions and a driver future heterogeneity and system functions. To accomplish this goal, we relate heterogeneity to the fundamental concept of the human ecosystem. The human ecosystem concept identifies key processes that require operationalized models of dynamic heterogeneity in three process realms: the flow of materials, the assembly of urban ecosystem biota, and the locational choices humans make concerning land. We exemplify a specific dynamic model of heterogeneity in each of these realms, and indicate a range of complementary statistical approaches to integrate the drivers and outcomes of dynamic heterogeneity across the three realms. We synthesize a hierarchical framework for a theory of dynamic urban heterogeneity, noting its complementarity to other major urban theories and general model approaches. We hypothesize that human actions and structures amplify the dynamics of heterogeneity in urban systems.     

Size does matter: Passive sampling in urban parks of a regional bat assemblage

Urban Ecosystems - We studied the occurrence of bats in urban parks in the city of Madrid (Spain), and the resulting patterns were compared with bat occurrence in the surrounding region. In this...     

Welfare and Welfare to Work in the United States

Summary

Despite social work's historic ambivalence toward income support programs, the policy changes introduced by the TANF welfare to work program demand the profession's attention. Although social workers are not directly responsible for the administration or implementation of the program, many serve TANF clients whose lives have been affected by these changes. Tracing social work's historic but reluctant involvement with income support, this paper urges the profession to respond to the challenges posed by the TANF program in a more systematic way and to contribute more effectively to the wider task of poverty eradication.     

Recent trends in Hispanic immigration to the United States

Recent patterns of Hispanic immigration to the United States are examined using data from the U.S. Immigration and Naturalization Service. "From 1960 to 1978 Hispanic immigration increased significantly, reflecting the general acceleration in total immigration to the United States. Demographic trends reveal that Hispanic immigrants are increasingly working-age women. Their occupation composition is primarily blue collar, with operatives emerging as the predominant job category during the 1970s." The authors note that these immigrants settle primarily in a small number of urban centers of Hispanic population and culture in the United States, and thus the effects of immigration will be concentrated on the low-skill segment of particular urban labor markets that already contain large numbers of Hispanic workers.