Freshwater ecoregions of the world: A new map of biogeographic units for freshwater biodiversity conservation

We present a new map depicting the first global biogeographic regionalization of Earth's freshwater systems. This map of freshwater ecoregions is based on the distributions and compositions of freshwater fish species and incorporates major ecological and evolutionary patterns. Covering virtually all freshwater habitats on Earth, this ecoregion map, together with associated species data, is a useful tool for underpinning global and regional conservation planning efforts (particularly to identify outstanding and imperiled freshwater systems); for serving as a logical framework for large-scale conservation strategies; and for providing a global-scale knowledge base for increasing freshwater biogeographic literacy. Preliminary data for fish species compiled by ecoregion reveal some previously unrecognized areas of high biodiversity, highlighting the benefit of looking at the world's freshwaters through a new framework.La lista completa de autores que integran el documento puede consultarse en el archivo.Facultad de Ciencias Naturales y Muse

Freshwater ecoregions of the world: A new map of biogeographic units for freshwater biodiversity conservation

We present a new map depicting the first global biogeographic regionalization of Earth's freshwater systems. This map of freshwater ecoregions is based on the distributions and compositions of freshwater fish species and incorporates major ecological and evolutionary patterns. Covering virtually all freshwater habitats on Earth, this ecoregion map, together with associated species data, is a useful tool for underpinning global and regional conservation planning efforts (particularly to identify outstanding and imperiled freshwater systems); for serving as a logical framework for large-scale conservation strategies; and for providing a global-scale knowledge base for increasing freshwater biogeographic literacy. Preliminary data for fish species compiled by ecoregion reveal some previously unrecognized areas of high biodiversity, highlighting the benefit of looking at the world's freshwaters through a new framework.La lista completa de autores que integran el documento puede consultarse en el archivo.Facultad de Ciencias Naturales y Muse

The social and scientific values that shape national climate scenarios: a comparison of the Netherlands, Switzerland and the UK

This paper seeks to understand why climate information is produced differently from country to country. To do this, we critically examined and compared the social and scientific values that shaped the production of three national climate scenarios in the Netherlands, Switzerland and the UK. A comparative analysis of documentary materials and expert interviews linked to the climate scenarios was performed. Our findings reveal a new typology of use-inspired research in climate science for decision-making: (i) innovators, where the advancement of science is the main objective; (ii) consolidators, where knowledge exchanges and networks are prioritised; and (iii) collaborators, where the needs of users are put first and foremost. These different values over what constitutes ‘good’ science for decision-making are mirrored in the way users were involved in the production process: (i) elicitation, where scientists have privileged decision-making power; (ii) representation, where multiple organisations mediate on behalf of individual users; and (iii) participation, where a multitude of users interact with scientists in an equal partnership. These differences help explain why climate knowledge gains its credibility and legitimacy differently even when the information itself might not be judged as salient and usable. If the push to deliberately co-produce climate knowledge is not sensitive to the national civic epistemology at play in each country, scientist–user interactions may fail to deliver more ‘usable’ climate information

Tonian-Cryogenian boundary sections of Argyll, Scotland

The Tonian-Cryogenian System boundary is to be defined at a GSSP (Global Boundary Stratigraphic Section and Point) beneath the first evidence of widespread glaciation. A candidate lies within the Dalradian Supergroup of Scotland and Ireland, which is least deformed and metamorphosed in Argyll, western Scotland. We present new stratigraphic profiles and interpretations from the Isle of Islay and the Garvellach Islands, update the chemostratigraphy of the Appin Group Tonian carbonates underlying the thick (ca. 1 km) glacigenic Port Askaig Formation (PAF) and demonstrate an environmental transition at the contact. The Appin Group forms a regionally extensive, >4 km-thick, succession of limestones, shales and sandstones deposited on a marine shelf. On Islay, the upper part of the lithostratigraphy has been clarified by measuring and correlating two sections containing distinctive stratigraphic levels including molar tooth structure, oolite, stromatolitic dolomite and intraclastic microbial mounds. Significantly deeper erosion at the unconformity at the base of the overlying PAF is demonstrated in the southern section. Carbonate facies show a gradual decline in δ13CVPDB from +5 to +2‰ upwards. In NE Garbh Eileach (Garvellach Islands), a continuously exposed section of Appin Group carbonates, 70 m thick, here designated the Garbh Eileach Formation (GEF), lies conformably beneath the PAF. The GEF and the GEF-PAF boundary relationships are re-described with new sedimentological logs, petrological and stable isotope data. Interstratified limestone and dolomicrosparite with δ13C of −4 to −7‰ (a feature named the Garvellach anomaly, replacing the term Islay anomaly) are overlain by dolomite in which the isotope signature becomes weakly positive (up to +1‰) upwards. Shallow subtidal conditions become peritidal upwards, with evidence of wave and storm activity. Gypsum pseudomorphs and subaerial exposure surfaces are common near the top of the GEF. The basal diamictite (D1) of the PAF is rich in carbonate clasts similar to slightly deeper-water parts of the underlying succession. D1 is typically several metres thick with interstratified sandstone and conglomerate, but dies out laterally. Scattered siliciclastic coarse sandstone to pebble conglomerate with dropstones associated with soft-sediment deformation is interbedded with carbonate below and above D1. Dolomite beds with derived intraclasts and gypsum pseudomorphs are found above D1 (or equivalent position, where D1 is absent). Published and new Sr isotope studies, including successive leach data, demonstrate primary Tonian 87Sr/86Sr values of 0.7066–0.7069 on Islay, decreasing to 0.7064–0.7066 in the younger GEF limestones on the Garvellachs, with 1700–2700 ppm Sr. Other typically Tonian characteristics of the carbonates are the Sr-rich nature of limestones, molar tooth structure, and dolomitized peritidal facies with evidence of aridity. Seabed surveys suggesting uniformly-dipping strata and shallow borehole core material illustrate the potential for extending the Tonian record offshore of the Garvellachs. A candidate Tonian-Cryogenian GSSP is proposed on Garbh Eileach within the smooth δ13C profile at the cross-over to positive δ13C signatures, 4 m below the first occurrence of ice-rafted sediment and 9 m below the first diamictite. Although lacking radiometric constraints or stratigraphically significant biotas or biomarkers, the Scottish succession has a thick and relatively complete sedimentary record of glaciation, coherent carbon and strontium chemostratigraphy, lateral continuity of outcrops and 100% exposure at the proposed boundary interval

Freshwater ecoregions of the world: A new map of biogeographic units for freshwater biodiversity conservation

We present a new map depicting the first global biogeographic regionalization of Earth's freshwater systems. This map of freshwater ecoregions is based on the distributions and compositions of freshwater fish species and incorporates major ecological and evolutionary patterns. Covering virtually all freshwater habitats on Earth, this ecoregion map, together with associated species data, is a useful tool for underpinning global and regional conservation planning efforts (particularly to identify outstanding and imperiled freshwater systems); for serving as a logical framework for large-scale conservation strategies; and for providing a global-scale knowledge base for increasing freshwater biogeographic literacy. Preliminary data for fish species compiled by ecoregion reveal some previously unrecognized areas of high biodiversity, highlighting the benefit of looking at the world's freshwaters through a new framework.La lista completa de autores que integran el documento puede consultarse en el archivo.Facultad de Ciencias Naturales y Muse

Physical activity and exercise: Strategies to manage frailty

Frailty, a consequence of the interaction of the aging process and certain chronic diseases, compromises functional outcomes in the elderly and substantially increases their risk for developing disabilities and other adverse outcomes. Frailty follows from the combination of several impaired physiological mechanisms affecting multiple organs and systems. And, though frailty and sarcopenia are related, they are two different conditions. Thus, strategies to preserve or improve functional status should consider systemic function in addition to muscle conditioning. Physical activity/exercise is considered one of the main strategies to counteract frailty-related physical impairment in the elderly. Exercise reduces age-related oxidative damage and chronic inflammation, increases autophagy, and improves mitochondrial function, myokine profile, insulin-like growth factor-1 (IGF-1) signaling pathway, and insulin sensitivity. Exercise interventions target resistance (strength and power), aerobic, balance, and flexibility work. Each type improves different aspects of physical functioning, though they could be combined according to need and prescribed as a multicomponent intervention. Therefore, exercise intervention programs should be prescribed based on an individual's physical functioning and adapted to the ensuing response.pre-print2.493 K

How cognitive links and decision-making capacity shape sectoral experts’ recognition of climate knowledge for adaptation

Scientific climate knowledge is often argued to be a key ingredient in climate adaptation. Focusing on individual sectors and institutions, researchers have given insights as to how climate knowledge is reframed according to institutional cultures and priorities. This study extends such scholarship by comparing how four sectors—greenspace management, building technology, spatial planning, and health—perceive, judge, transfer, and appropriate knowledge on urban heatwaves, and what adaptation options are proposed. Based on semi-structured interviews, documentary materials and observations of two workshops collected in two Swiss cities, I draw on Eviatar Zerubavel and his ‘cultural cognitive sociology’ whose work emphasises how collectively shared patterns of recognition and thinking guide and facilitate human judgement. I find two factors to influence knowledge appropriation. On the one hand, the formative dimension of knowledge underscores that experts understand climate knowledge similarly when a sector shares key concepts with climate science. If such ‘cognitive links’ are missing, the answers on how heatwaves impact experts’ work are more varied. On the other hand, the performative dimension of knowledge highlights that experts’ eagerness to adapt is influenced by diverging technical, legal, and social possibilities. When experts’ decision scope is large, then uptake of climate knowledge is more fluid. With a more explicit understanding of why sectors differ in their appropriation and integration of climate knowledge into their work, this study is a reminder that only fitting knowledge is of value to sectoral experts.ISSN:0165-0009ISSN:1573-148

Adapting climate science: Global customisations, national uses, and local appropriations

Much scholarship has argued that information on future climate change ought to be the basis for climate adaptation decisions. But how has the impressive corpus of knowledge produced by climate scientists been processed and adapted to inform adaptation decisions in practice? This doctoral thesis compares and analyses how different actors have ap-proached, grappled with, understood, generated relevance and acted upon climate science for adaptation. Drawing on surveys, semi-structured interviews, documentary materials, workshop observations, and the peer-reviewed literature, this thesis encompasses three empirical studies – on global customisations, national uses and local appropriations – as well as a reflective review ordering different social-scientific perspectives according to their underlying aims and concerns. Starting with a historiographic perspective on the origin of the concept of ‘climate’, the introduction (chapter 1) illustrates what climate science at the turn of the 21st century is, before reviewing key social-scientific scholarship on climate adaptation and climate sci-ence. Chapter 2 then describes not only the particular data and methods employed in this thesis, but also reflects how methodological considerations influence the research project more generally. Chapter 3 analyses how countries around the globe differ in their ability to customise climate models into climate projections supporting their national adaptation planning. While a surprising amount of nations have produced such information, the degree to which they are able to tailor the information to their needs and political cultures is strongly correlated with the countries’ general competence to publish climate science. Thus, while climate information is widely available, customising it for own purposes remains restricted to a few countries. Chapter 4 introduces the typology of sailors, divers, and observers to emphasise three particu-lar ways climate projections have been used on a national level. It argues that the more qualitative or quantitative use of climate information is neither correlated to climate service users’ affiliation to a sector, academia, or practice. Further, I find that many adaptation actors used information on climate futures in a qualitative way, but number-crunched cur-rent climate data. Communicating climate information, both qualitatively as well as quanti-tatively, is thus key to increase the national use of climate science. Chapter 5 analyses how, and more importantly why, four sectors vulnerable to heatwaves appropriated scientific climate knowledge differently. By drawing on the work of Eviatar Zerubavel and his cultural cognitive sociology, I find that the formative and performative dimen-sions of knowledge play a major role in appropriating climate information. One, whether concepts are shared between a sector and climate science, allowing to similarly recognise the relevance of climate knowledge. Two, the more experts enjoy a large decision scope, the more they seem to be able to integrate heatwaves into their work. The decision scope is, however, influenced by the properties with which experts work: inert matter allows a different style of adaptation than people. Chapter 6 is a reflective review paper that classifies the vast amount of research into five distinct ways social scientists study climate science and climate adaptation. The aim of this review is to draw out distinct underlying ontological and epistemological differences, which are in themselves influenced by partly competing priorities, concerns and aims. By introducing how social scientists committed to a descriptivist style are different to the amelio-rist, argumentivist, interpretivist and critical order of social science, I aim to emphasise how social science on adapting climate science is a rich but also potentially tribal field. Chapter 7 then discusses the three empirical papers and the review further, and details how the collected material on local appropriations could contribute to ongoing academic dis-cussions. It also expands on how the Youth Strike for Climate influences discussions on climate adaptation (not mitigation), and how the entry of a new societal actor offers promising new research opportunities for the study of ‘adapting climate science’

Orders of Social Science: Understanding Social-Scientific Controversies and Confluence on What “High-Quality” Knowledge and “Good” Adaptation Is

Various scholars have noted—and experienced—tribal tendencies between social-scientific “schools of thought” or “paradigms.” The intensity and fervor of such controversies has led some scientists to compare them with frictions between religious orders. In the research domain focused on the use of climate science for climate adaptation, such disputes revolve around the what “high-quality” climate knowledge and “good” adaptation is or should be. Emphasizing this diversity of orders of social science and the humanities, this article describes five distinct ways social scientists and humanities scholars have thought and written about climate adaptation: descriptivists aim to empirically portray climate adaptation as objectively as possible from an assumed subject-independent perspective; pragmatists' research wants to increase climate resilience through usable climate information; argumentivists strive for assessing the justification of climate scientific findings, as well as adaptation decision-making that is based on these findings; interpretivists seek to empirically redescribe how the use of climate science for adaptation is shaped by, and shapes, various other social processes and political actors; and critical scholars work toward revealing how pervasive powerful interests and marginalizing discourses shape adaptation projects negatively. By comparing these five orders' respective scientific, environmental and social aims and concerns, this article pinpoints to how epistemological, ontological and methodological priorities not only drive scientific controversies on issues such as what “high-quality knowledge” is, but also how interdependent orders' methodological choices are with their epistemological and ontological positions. However, this analysis also reveals that while some scholars implicitly stick to their order, others are comfortable to collaborate across such borders. Overall, the diverging aims, priorities, and methods are unlikely to be ever fully reconciled. A better understanding of why academics from different orders differ in the approaches they take and the issues they care about will likely lead to a larger appreciation of the differences of other orders' research and broaden our understanding of key dynamics in studying “good” climate adaptation and “high-quality” climate knowledge

Who is ‘the user’ of climate services? Unpacking the use of national climate scenarios in Switzerland beyond sectors, numeracy and the research–practice binary

By whom are national climate scenarios taken up, and which products are used? Despite numerous (national) climate scenarios being published by countries across the globe, studies of their actual uptake and application remain low. Analysing a survey and group interviews on the ways the Swiss climate scenarios CH2011 have been actually used by the Swiss adaptation community, we encoded the emerging differences in a new typology of observers, sailors, and divers. Taking an iceberg as a metaphor for climate scenarios, most respondents were sailors, accessing only key findings above the waterline (i.e., summary brochures). However, the vast majority of climate scenario data remains below the surface (i.e., downscaled climate model data), accessible only to the quarter of respondents labelled divers. Lastly, another quarter are observers, interested in the iceberg from afar, but without applying the climate information directly to their work. By describing three ways of using climate scenarios, we aim to clarify the often vague notion of ‘user’ circulating prominently in discussions around climate services and knowledge co-production. In addition, our results question the adequacy of simplifying climate scenario use by a user’s easily observable characteristics – such as being a researcher or practitioner, by sector or by numeracy. Our typology thus highlights the diversity of use(r)s within sectors or academia, but is also able to characterise various similarities of use(r)s between sectors, researchers and practitioners. Our findings assist in more nuanced and informed discussions of how ‘users’ are imagined and characterised in future developments of usable climate services