The Mekong River Basin, site of the biggest inland fishery in the world, is undergoing massive hydropower development. Planned dams will block critical fish migration routes between the river's downstream floodplains and upstream tributaries. Here we estimate fish biomass and biodiversity losses in numerous damming scenarios using a simple ecological model of fish migration. Our framework allows detailing trade-offs between dam locations, power production, and impacts on fish resources. We find that the completion of 78 dams on tributaries, which have not previously been subject to strategic analysis, would have catastrophic impacts on fish productivity and biodiversity. Our results argue for reassessment of several dams planned, and call for a new regional agreement on tributary development of the Mekong River Basin.

Trading-off Fish Biodiversity, Food Security and Hydropower in the Mekong River Basin

River flows in the Murray–Darling Basin, as in many regions in the world, are vulnerable to climate change, anticipated to exacerbate current, substantial losses of freshwater biodiversity. Additional declines in water quantity and quality will have an adverse impact on existing freshwater ecosystems. We critique current river-management programs, including the proposed 2011 Basin Plan for Australia’s Murray–Darling Basin, focusing primarily on implementing environmental flows. River management programs generally ignore other important conservation and adaptation measures, such as strategically located freshwater-protected areas. Whereas most river-basin restoration techniques help build resilience of freshwater ecosystems to climate change impacts, different measures to enhance resilience and reoperate water infrastructure are also required, depending on the degree of disturbance of particular rivers on a spectrum from free-flowing to highly regulated. A crucial step is the conservation of free-flowing river ecosystems where maintenance of ecological processes enhances their capacity to resist climate change impacts, and where adaptation may be maximised. Systematic alteration of the operation of existing water infrastructure may also counter major climate impacts on regulated rivers.

Australia's Murray-Darling basin Freshwater ecosystem conservation

Urban green spaces for the social interaction, health and well-being of older people— An integrated view of urban ecosystem services and socio-environmental justice

https://iopscience.iop.org/article/10.1088/1748-9326/aaa81a/pdf

Stormwater management and ecosystem services: a review.

Sustainable stormwater management: A qualitative case study of the Sponge Cities initiative in China

Climate change effects on water allocations with season dependent water rights.

In Mekong riparian countries, hydropower development provides energy, but also threatens biodiversity, ecosystems, food security, and an unparalleled freshwater fishery. The Sekong, Sesan, and Srepok Rivers (3S Basin) are major tributaries to the Lower Mekong River (LMB), making up 10% of the Mekong watershed but supporting nearly 40% of the fish species of the LMB. Forty-five dams have been built, are under construction, or are planned in the 3S Basin. We completed a meta-analysis of aquatic and riparian environmental losses from current, planned, and proposed hydropower dams in the 3S and LMB using 46 papers and reports from the past three decades. Proposed mainstem Stung Treng and Sambor dams were not included in our analysis because Cambodia recently announced a moratorium on mainstem Mekong River dams. More than 50% of studies evaluated hydrologic change from dam development, 33% quantified sediment alteration, and 30% estimated fish production changes. Freshwater fish diversity, non-fish species, primary production, trophic ecology, and nutrient loading objectives were less commonly studied. We visualized human and environmental tradeoffs of 3S dams from the reviewed papers. Overall, Lower Sesan 2, the proposed Sekong Dam, and planned Lower Srepok 3A and Lower Sesan 3 have considerable environmental impacts. Tradeoff analyses should include environmental objectives by representing organisms, habitats, and ecosystems to quantify environmental costs of dam development and maintain the biodiversity and extraordinary freshwater fishery of the LMB.

https://www.mdpi.com/2073-4441/13/1/63/pdf

A Meta-Analysis of Environmental Tradeoffs of Hydropower Dams in the Sekong, Sesan, and Srepok (3S) Rivers of the Lower Mekong Basin

Free clinics provide free or reduced fee healthcare to individuals who lack access to primary care and are socioeconomically disadvantaged. There has been a paucity of free clinic research with the few studies employing a quantitative design. The purpose of this study is to conduct an in-depth qualitative exploration of free clinic patients’ experience and perceptions of healthcare services, community resources, and the Patient Protection and Affordable Care Act (ACA). Free clinic adult patients (n=35) participated in four focus groups between June and July 2014 (one Spanish group in June, and two English groups and one Spanish group in July) in a classroom of a free clinic. More than 80% of the participants were non-US born from Mexico, Central/South America, South or East Asia, Pacific Islands, or Western Europe. While participants reported being satisfied overall with free clinic services, they indicated that they desire more specialty services and health education programs. Furthermore, they reported being frustrated by long waiting timesboth in the waiting room and when making an appointment, phone communication, and interpreter services. It is necessary to find effective ways to provide information about health education opportunities and the ACA to free clinic patients because participants appeared not to have received sufficient information about available resources. Health education programs for free clinic patients should not only focus on increasing knowledge but also changing behaviors.

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Uninsured free clinic patients’ experiences and perceptions of healthcare services, community resources, and the Patient Protection and Affordable Care Act

The purpose of this study was to explore the experience of foreign-born international medical graduates (IMGs) in the USA. Few studies describe IMG experiences in attaining medical licensure in the USA at each step of the process. Furthermore, little is known about IMGs who choose not to become a licensed physician or were unsuccessful in doing so. In this study, 20 foreign-born IMGs, 16 practicing IMGs and 4 non-licensed physician IMGs, participated in a 1-h semi-structured face-to-face interview between September 2013 and April 2014. Participants were from North America (Canada), Latin America, South Asia, East Asia, Europe, the Middle East, or Sub-Saharan Africa. Interviews were transcribed. Two of the authors conducted initial analysis of each interview separately. Four primary themes emerged based on the data analysis: (1) barriers to physician careers include the immigration process, years since graduating from medical school, language and culture, and cost and time; (2) positive factors to support physician careers include networking and research experience; (3) factors that positively or negatively affect IMGs seeking physician careers such as the education system in a home country and family; and (4) non-physician careers. In order to develop multiple pathways to utilize IMGs in the US healthcare system, future research examining the following areas is necessary: (1) support systems for IMGs who are taking the US Medical Licensing Exam (USMLE) or applying for a residency position and (2) the experience of IMGs who are not certified physicians in the USA.

Liana Prudencio

Papers

Stormwater management and ecosystem services: a review.

Climate change effects on water allocations with season dependent water rights.

A Meta-Analysis of Environmental Tradeoffs of Hydropower Dams in the Sekong, Sesan, and Srepok (3S) Rivers of the Lower Mekong Basin

Uninsured free clinic patients’ experiences and perceptions of healthcare services, community resources, and the Patient Protection and Affordable Care Act

Physician Migration: Experience of International Medical Graduates in the USA