The Silent Crisis: The State of Rain Forest Nature Preserves

Author(s):  
Carel P. van Schaik ◽  
John Terborgh

The principal response of the global community to the threats against biodiversity has been the establishment of strictly protected areas, exemplified by the National Park System of the United States. In such areas, consumptive uses are banned and wild nature is allowed to exist in untrammeled form. Nonconsumptive recreational uses—such as sightseeing, hiking, swimming, boating, and camping—are permitted but are regulated as to place and time and number of participants. In the tropical forest realm, however, protected nature preserves are in a state of crisis. A number of tropical parks have already been degraded almost beyond redemption; others face severe threats of many kinds with little capacity to resist. The final bulwark erected to shield tropical nature from extinction is collapsing. The predictable and unpredictable ecological processes likely to affect the future ability of protected rain forest areas to retain their full biodiversity are examined in chapter 3. While the potential impact of ecological processes could be severe, they are amenable to technical solutions and could be solved given sufficient resources and knowledge. A far more immediate and significant threat is posed by human activities. Indeed, the crisis of parks in the tropics results primarily from increasing human pressure on all unexploited natural resources, aggravated by ineffective protection. Pressure on parks is exerted on local, regional, and national scales, usually taking the form of illegal land appropriation or resource extraction. The attack on tropical parks is being pressed by four main classes of actors: local and displaced populations of agriculturalists and extractors, governments, resource-robbing elites, and (in a few cases) indigenous forest-dwelling populations. In this chapter, we discuss the root causes of the actions of each of these groups and of the institutional failure that results in ineffective enforcement of park legislation. many common themes, regardless of the geographic area to which they pertained, and one theme in particular stood out: despite legal status and the presence of conservation officers, protected areas are not safe from illegal appropriation and exploitation. Our perception is that the threat to tropical parks is not widely appreciated.

2012 ◽  
Vol 40 (3) ◽  
pp. 209-210 ◽  
Author(s):  
RENATO CROUZEILLES ◽  
MARIANA M. VALE ◽  
RUI CERQUEIRA ◽  
CARLOS E. V. GRELLE

SUMMARYA key strategy to reduce habitat loss and fragmentation involves the establishment of protected areas (PAs). Worldwide, c. 13% of land lies within PAs, but only 6% is subject to the more restrictive International Union for the Conservation of Nature (IUCN) categories I-IV. Private PAs may contribute to this figure, but require general guidance principles for their management. The Brazilian ‘Private Natural Heritage Reserves’ (RPPNs) constitute an example of good PA management, employing seven principles that should guide the creation of all private PAs. RPPNs have legal status and long-term security, allow only for indirect human uses, and provide a strategic conservation role in highly fragmented landscapes by improving connectivity. However, RPPNs are virtually absent from the World Database on Protected Areas, and given Brazil's continental size, and the considerable and increasing number of RPPNs in Brazil, this omission has the potential to skew accurate quantification of the area of land subject to strict protection. The RPPN model can make an important contribution to the discussion of the role of private PAs in conservation, especially in the tropics.


2019 ◽  
Vol 16 (3) ◽  
pp. 361-368
Author(s):  
Stephanie Jean Kohl

Caught between abusive partners and restrictive immigration law, many undocumented Latina women are vulnerable to domestic violence in the United States. This article analyzes the U-Visa application process experienced by undocumented immigrant victims of domestic violence and their legal advisors in a suburb of Chicago, United States. Drawing on theoretical concepts of structural violence and biological citizenship, the article highlights the strategic use of psychological suffering related to domestic violence by applicants for such visas. It also investigates the complex intersection between immigration law and a humanitarian clause that creates a path towards legal status and eventual citizenship.


Author(s):  
Alexandra Délano Alonso

This chapter demonstrates how Latin American governments with large populations of migrants with precarious legal status in the United States are working together to promote policies focusing on their well-being and integration. It identifies the context in which these processes of policy diffusion and collaboration have taken place as well as their limitations. Notwithstanding the differences in capacities and motivations based on the domestic political and economic contexts, there is a convergence of practices and policies of diaspora engagement among Latin American countries driven by the common challenges faced by their migrant populations in the United States and by the Latino population more generally. These policies, framed as an issue of rights protection and the promotion of migrants’ well-being, are presented as a form of regional solidarity and unity, and are also mobilized by the Mexican government as a political instrument serving its foreign policy goals.


Geomatics ◽  
2021 ◽  
Vol 1 (3) ◽  
pp. 335-346
Author(s):  
Do-Hyung Kim ◽  
Anupam Anand

Evaluation of the effectiveness of protected areas is critical for forest conservation policies and priorities. We used 30 m resolution forest cover change data from 1990 to 2010 for ~4000 protected areas to evaluate their effectiveness. Our results show that protected areas in the tropics avoided 83,500 ± 21,200 km2 of deforestation during the 2000s. Brazil’s protected areas have the largest amount of avoided deforestation at 50,000 km2. We also show the amount of international aid received by tropical countries compared to the effectiveness of protected areas. Thirty-four tropical countries received USD 42 billion during the 1990s and USD 62 billion during the 2000s in international aid for biodiversity conservation. The effectiveness of international aid was highest in Latin America, with 4.3 m2/USD, led by Brazil, while tropical Asian countries showed the lowest average effect of international aid, reaching only 0.17 m2/USD.


2004 ◽  
Vol 20 (6) ◽  
pp. 705-708 ◽  
Author(s):  
Martin Pfeiffer ◽  
Jamili Nais ◽  
K. Eduard Linsenmair

The Old-World tropics encompass one of the floristically richest zones of the world and some of the hot spots of ant diversity. This results in a large variety of ecological interactions between both groups. One of them is the phenomenon of myrmecochory, seed dispersal by ants, which is also well known from temperate forests (Gorb & Gorb 2003, Ulbrich 1919), and which is most prominent in sclerophyll shrublands of Australia and southern Africa (Andersen 1988). Beattie (1983), who reviewed the distribution of ant-dispersed plants (at least 80 plant families worldwide) proposed that species richness and abundance of myrmecochores and diaspore-dispersing ants increases with decreasing latitude and thus predicted a greater variety of ant-dispersal systems in the tropics. However, up to now, few tropical myrmecochores have been described (Horvitz 1981, Horvitz & Schemske 1986), especially in the palaeotropics (Kaufmann et al. 2001). Here we report myrmecochory in two species of rain-forest herb of the Zingiberaceae, give the first evidence for seed dispersal by ants in this plant family and present a list of seed-dispersing ant species. An important benefit of myrmecochory is the dispersal distance of the ant-transported seeds (Andersen 1988), that has been found to be positively correlated with ant size (Gomez & Espadaler 1998a, Pudlo et al. 1980). In this study, we checked whether this correlation is also true for the conditions of the tropical rain forest, where Globba plants occur.


2021 ◽  
pp. 105477382110085
Author(s):  
Feifei Huang ◽  
Wei-Ti Chen ◽  
Cheng-Shi Shiu ◽  
Wenxiu Sun ◽  
Abigail Radaza ◽  
...  

Migrant smuggling is a humanitarian crisis that impacts public health. A limited number of studies have focused on the links between migrant smuggling and its impact on the risk of infectious diseases, including HIV, for those smuggled. To explore these links, we conducted in-depth interviews with 11 Asian and Pacific Americans (APA) living with HIV in New York and Los Angeles. Qualitative content analysis revealed that smuggled immigrants described their experience as one with opportunity and danger. Smuggled immigrants, who aimed to achieve their American dream, were influenced by hometown pioneers who successfully journeyed to the United States and by the prospect of gaining legal status through immigration policy similar to the 1986 amnesty. Unfortunately, the long and dangerous journey exposed the immigrants to health problems, including risk for HIV. Thus, health care providers for immigrants should assess their migration routes and screen for infectious diseases.


2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Xuan Wei ◽  
Gülcan Önel ◽  
Zhengfei Guan ◽  
Fritz Roka

AbstractThe policy debate surrounding the employment of immigrant workers in U.S. agriculture centers around the extent to which immigrant farmworkers adversely affect the economic opportunities of native farmworkers. To help answer this question, we propose a three-layer nested constant elasticity of substitution (CES) framework to investigate the substitutability among heterogeneous farmworker groups based on age, skill, and legal status utilizing National Agricultural Workers Survey (NAWS) data from 1989 through 2012. We use farmwork experience and type of task performed as alternative proxies for skill to disentangle the substitution effect between U.S. citizens, authorized immigrants, and unauthorized immigrant farmworkers. Results show that substitutability between the three legal status groups is small; neither authorized nor unauthorized immigrant farmworkers have a significant impact on the employment of native farmworkers.


Author(s):  
Leonardo Silva Junior ◽  
Jéssica Andrade Vilas Boas ◽  
Marcos Eduardo Cordeiro Bernardes ◽  
Maria Inês Nogueira Alvarenga

Os processos ecológicos contribuem de forma ímpar para vivência humana, sendo capazes de fornecer condições essenciais à manutenção da vida na Terra, permitindo que ecossistemas se mantenham em equilíbrio. Nesse cenário, algumas áreas designadas legalmente pelo poder público, incubem-se de proteger vestígios naturais às ações antrópicas, porém estas áreas protegidas vêm sofrendo continuamente com pressões humanas mesmo em seus interiores. Assim, o Parque Estadual da Ilha Anchieta (PEIA), localizado no litoral norte do estado de São Paulo, é uma das áreas protegidas mais visitadas do estado. Nesse contexto, diversas atividades recreativas são permitidas em seu interior, possibilitando assim possíveis adversidades aos processos ecológicos. Assim, o objetivo deste trabalho foi avaliar a qualidade visual da paisagem do PEIA, por meio de indicadores ambientais. Para tal, foram selecionadas 10 paisagens de alta relevância quanto a sua beleza cênica, fluxo de turistas, amplitude visual, relevância educacional e para a conservação ambiental. As paisagens encontram-se em diferentes altitudes, fitofisionomias, aspectos abióticos e níveis de acesso público, com diversidade espacial, o que confere características únicas a elas. Os seguintes indicadores visuais foram usados na classificação das paisagens: diversidade; naturalidade; singularidade e detratores. Além disso, os locais foram georreferenciados e fotografados. Como resultado, quatro locais apresentaram qualidade visual média; quatro, com qualidade visual média superior e duas paisagens com qualidade visual superior. Em geral, a qualidade visual foi inferior nas zonas frontais do PEIA, onde o acesso aos turistas é facilitado por trilhas e infraestrutura de apoio. Já regiões mais afastadas e de difícil acesso foram as que apresentaram melhor qualidade visual. Deste modo, conclui-se que de fato a interferência humana reflete diretamente na qualidade visual das paisagens e assim, medidas de gestão ambiental, principalmente a atualização do seu plano de manejo, que data de 1989, podem dar suporte a uma proteção mais qualificada ao parque, bem como, proporcionar uma experiência ainda mais agradável e educativa aos seus visitantes. Quality visual landscape of State Park Anchieta Island, Ubatuba (SP, Brazil) ABSTRACT The ecological processes contribute in a unique way to human experience, being able to provide essential conditions for sustaining life on earth, allowing that keep ecosystems in balance. In this scenario, some areas legally designated by the Government, incubate up to protect natural traces to human actions, but these protected areas are continuously suffering from human pressures even in their interiors, Thus, the State Park of the Anchieta Island (PEIA), located on the northern coast of São Paulo, is one of the most visited protected areas of the state. In this context, various recreational activities are allowed inside, thus enabling possible adversities to ecological processes. Thus, the aim of this study was to evaluate the visual quality of PEIA landscape through environmental indicators. To this end, were selected 10 landscapes of high relevance as its scenic beauty, tourist flow, visual range, educational relevance and to environmental conservation. The landscapes are at different altitudes, vegetation types, abiotic aspects and public access levels with spatial diversity, which gives unique characteristics to them. The following visual indicators were used in the classification of landscapes: diversity; naturalness; uniqueness and detractors. Furthermore, the sites were georeferenced and photographed. As result, four sites had visual medium quality; four, with visual medium superior quality and two landscapes with visual superior quality. In general, the visual quality was lower in the frontal areas of the PEIA, where access to tourists is facilitated by trails and infrastructure support. Already more remote areas and difficult access showed the best visual quality. Thus, it is concluded that in fact human interference directly reflects the visual quality of the landscape and thus environmental management measures, mainly updating its management plan, dating from 1989 can support a more qualified protection park, as well as provide an experience even more enjoyable and educational visitors. KEYWORDS: Ecotourism; Protected Areas; Environmental Indicators.


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