Americas Abortion Quandary

A majority of Americans say abortion should be legal in all or most cases, but many are open to restrictions; many opponents of legal abortion say it should be legal in some circumstance

Beyond Red vs. Blue: The Political Typology - 2021

Partisan polarization remains the dominant, seemingly unalterable condition of American politics. Republicans and Democrats agree on very little – and when they do, it often is in the shared belief that they have little in common.Yet the gulf that separates Republicans and Democrats sometimes obscures the divisions and diversity of views that exist within both partisan coalitions – and the fact that many Americans do not fit easily into either one.Republicans are divided on some principles long associated with the GOP: an affinity for businesses and corporations, support for low taxes and opposition to abortion. Democrats face substantial internal differences as well – some that are long-standing, such as on the importance of religion in society, others more recent. For example, while Democrats widely share the goal of combating racial inequality in the United States, they differ on whether systemic change is required to achieve that goal.These intraparty disagreements present multiple challenges for both parties: They complicate the already difficult task of governing in a divided nation. In addition, to succeed politically, the parties must maintain the loyalty of highly politically engaged, more ideological voters, while also attracting support among less engaged voters – many of them younger – with weaker partisan ties.Pew Research Center's new political typology provides a road map to today's fractured political landscape. It segments the public into nine distinct groups, based on an analysis of their attitudes and values. The study is primarily based on a survey of 10,221 adults conducted July 8-18, 2021; it also draws from several additional interviews with these respondents conducted since January 2020

The Science Performance of JWST as Characterized in Commissioning

This paper characterizes the actual science performance of the James Webb Space Telescope (JWST), as determined from the six month commissioning period. We summarize the performance of the spacecraft, telescope, science instruments, and ground system, with an emphasis on differences from pre-launch expectations. Commissioning has made clear that JWST is fully capable of achieving the discoveries for which it was built. Moreover, almost across the board, the science performance of JWST is better than expected; in most cases, JWST will go deeper faster than expected. The telescope and instrument suite have demonstrated the sensitivity, stability, image quality, and spectral range that are necessary to transform our understanding of the cosmos through observations spanning from near-earth asteroids to the most distant galaxies.Comment: 5th version as accepted to PASP; 31 pages, 18 figures; https://iopscience.iop.org/article/10.1088/1538-3873/acb29

Optimisation of the conservation of rare and vulnerable plant species in the perspective of climate change in Lithuanian (nature) reserves

Nature reserves are one of the most important measures in saving biodiversity, however, during the climate change, a real danger arises, that these territories would not be able to fulfill the objectives. In order to mitigate negative effects of climate change in protected areas it is necessary to create and apply management programs, based on future ecosystems needs. The main aim of presented study was to evaluate sensitivity of rare and vulnerable species to climate change in order to suggest measures for better management of nature reserves in the future

Do low-income neighbourhoods have the least green space? : a cross-sectional study of Australia's most populous cities

Funding: Fellowship, National Heart Foundation of Australia.An inequitable distribution of parks and other 'green spaces' could exacerbate health inequalities if people on lower incomes, who are already at greater risk of preventable diseases, have poorer access.Publisher PDFPeer reviewe

Environmental heterogeneity predicts global species richness patterns better than area

Aim It is widely accepted that biodiversity is influenced by both niche-related and spatial processes from local to global scales. Their relative importance, however, is still disputed, and empirical tests are surprisingly scarce at the global scale. Here, we compare the importance of area (as a proxy for pure spatial processes) and environmental heterogeneity (as a proxy for niche-related processes) for predicting native mammal species richness world-wide and within biogeographical regions. Location Global. Time period We analyse a spatial snapshot of richness data collated by the International Union for Conservation of Nature. Major taxa studied All terrestrial mammal species, including possibly extinct species and species with uncertain presence. Methods We applied a spreading dye algorithm to analyse how native mammal species richness changes with area and environmental heterogeneity. As measures for environmental heterogeneity, we used elevation ranges and precipitation ranges, which are well-known correlates of species richness. Results We found that environmental heterogeneity explained species richness relationships better than did area, suggesting that niche-related processes are more prevalent than pure area effects at broad scales. Main conclusions Our results imply that niche-related processes are essential to understand broad-scale species-area relationships and that habitat diversity is more important than area alone for the protection of global biodiversity