53 research outputs found

    The effectiveness of public infrastructure investment: an overview for the Spanish economy and its regions

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    In this work we go through the economic literature that has quantifiedin the last years the macroeconomic effects of public infrastructures at theregional level. The paper offers, from the point of view of the authors, a review ofthe most significant contributions to the production function and cost function approaches.In the analysis we put the emphasis on results obtained for the Spanisheconomy. Likewise, the conclusions are entirely devoted to extract recommendations,that should be taken in mind, when designing public investment policies ofinfrastructure endowment in Spain

    Distribution of alien tetrapods in the Iberian Peninsula

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    We present a dataset that assembles occurrence records of alien tetrapods (amphibians, reptiles, birds and mammals) in the Iberian Peninsula, a coherent biogeographically unit where introductions of alien species have occurred for millennia. These data have important potential applications for ecological research and management, including the assessment of invasion risks, formulation of preventive and management plans, and research at the biological community level on alien species. This dataset summarizes inventories and data sources on the taxonomy and distribution of alien tetrapods in the Iberia Peninsula, comprising known locations from published literature, expert knowledge and citizen science platforms. An expert-based assessment process allowed the identification of unreliable records (misclassification or natural dispersion from native range), and the classification of species according to their status of reproduction in the wild. Distributional data was harmonized into a common area unit, the 10 × 10 km Universal Transverse Mercator (UTM) system (n = 6,152 cells). The year of observation and/or year of publication were also assigned to the records. In total, we assembled 35,940 unique distribution records (UTM × species × Year) for 253 species (6 amphibians, 16 reptiles, 218 birds and 13 mammals), spanning between 1912 and 2020. The species with highest number of distribution records were the Mediterranean painted frog Discoglossus pictus (n = 59 UTM), the pond slider Trachemys scripta (n = 471), the common waxbill Estrilda astrild (n = 1,275) and the house mouse Mus musculus (n = 4,043), for amphibians, reptiles, birds and mammals, respectively. Most alien species recorded are native to Africa (33%), followed by South America (21%), Asia (19%), North America (12%) and Oceania (10%). Thirty-six species are classified by IUCN as threatened in their native range, namely 2 Critically Endangered (CR), 6 Endangered (EN), 8 Vulnerable (VU), and 20 species Near Threatened (NT). Species maps are provided in DataSet1, as well R code and GIS layers to update them as new records are obtained.info:eu-repo/semantics/publishedVersio

    Exploring differences in stakeholders' perceptions of illegal bird trapping in Cyprus

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    Abstract Background Cyprus is recognised as a hotspot for illegal bird trapping in the Mediterranean basin. A consumer demand for the Eurasian blackcap (Sylvia atricapilla) is driving the use of non-selective trapping methods, resulting in the indiscriminate killing of millions of migratory birds. Efforts to tackle the issue have so far been characterised mostly by a top-down approach, focusing on legislation and enforcement. However, trapping levels are not decreasing and conflict between stakeholder groups is intensifying. Methods To understand why efforts to stop illegal bird trapping have not been effective, we used semi-structured interviews to interview 18 local bird trappers and nine representatives from the pertinent environmental non-governmental organisations (NGOs) and the governmental agencies responsible for enforcing the legislation. Results We found distinct differences between the views of the local trapping community and the environmental NGOs, particularly on why trapping is occurring and its impact on the avifauna. This disparity has contributed to misrepresentations of both sides and a high degree of conflict, which is potentially proving counterproductive to conservation interventions. In addition, it appears that trappers are a heterogeneous group, likely driven by various motivations besides profit. Conclusion We argue that stakeholders interested in reducing illegal bird trapping need to develop anti-poaching strategies that aim at minimising the disparity in the views, and subsequently the conflict, acknowledging also that trappers are not a homogenous group, as often treated

    Evolution of the use of corticosteroids for the treatment of hospitalised COVID-19 patients in Spain between March and November 2020: SEMI-COVID national registry

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    Objectives: Since the results of the RECOVERY trial, WHO recommendations about the use of corticosteroids (CTs) in COVID-19 have changed. The aim of the study is to analyse the evolutive use of CTs in Spain during the pandemic to assess the potential influence of new recommendations. Material and methods: A retrospective, descriptive, and observational study was conducted on adults hospitalised due to COVID-19 in Spain who were included in the SEMI-COVID- 19 Registry from March to November 2020. Results: CTs were used in 6053 (36.21%) of the included patients. The patients were older (mean (SD)) (69.6 (14.6) vs. 66.0 (16.8) years; p < 0.001), with hypertension (57.0% vs. 47.7%; p < 0.001), obesity (26.4% vs. 19.3%; p < 0.0001), and multimorbidity prevalence (20.6% vs. 16.1%; p < 0.001). These patients had higher values (mean (95% CI)) of C-reactive protein (CRP) (86 (32.7-160) vs. 49.3 (16-109) mg/dL; p < 0.001), ferritin (791 (393-1534) vs. 470 (236- 996) µg/dL; p < 0.001), D dimer (750 (430-1400) vs. 617 (345-1180) µg/dL; p < 0.001), and lower Sp02/Fi02 (266 (91.1) vs. 301 (101); p < 0.001). Since June 2020, there was an increment in the use of CTs (March vs. September; p < 0.001). Overall, 20% did not receive steroids, and 40% received less than 200 mg accumulated prednisone equivalent dose (APED). Severe patients are treated with higher doses. The mortality benefit was observed in patients with oxygen saturation </=90%. Conclusions: Patients with greater comorbidity, severity, and inflammatory markers were those treated with CTs. In severe patients, there is a trend towards the use of higher doses. The mortality benefit was observed in patients with oxygen saturation </=90%

    Factors influencing the bird community of urban wooded streets along an annual cycle

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    Although the bird communities of some urban habitats have received considerable re-search attention, the bird fauna of wooded streets have been little studied despite the fact that wooded streets constitute a distinct feature of the urban landscape. In order to exam-ine the effects of vegetation structure and floristic attributes on bird species richness and bird abundance, 216 wooded streets in the city of Valencia (Spain) were surveyed during three consecutive seasons in the year 2000. During the survey 1,378 individuals of 14 bird species were recorded. With the exception of the House Sparrow (Passer domesticus) and the Collared Dove (Streptopelia decaocto), most of these species had very low abun-dances. Depending on the season, the species recorded in wooded streets represented be-tween 19–25% of the species recorded in the nearby urban habitats. Across seasons, tree species richness, tree abundance and tree height were the main factors influencing bird species richness and bird abundance. 34 tree species out of 41 were used by birds. Some large tree species like the Box Elder (Acer negundo), the Siberian Elm (Ulmus pumilla) and the White Poplar (Populus alba) were preferred. A substantial change in the design and management of wooded streets in order to improve their suitability for bird fauna is suggested

    Birds in European Cities

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    La efectividad de la inversión en infraestructuras públicas: una panorámica para la economía española y sus regiones

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    En este trabajo se realiza una revisión de la literatura económica de los últimos años que ha abordado la cuantificación de los efectos macroeconómicos de las infraestructuras públicas, especialmente en el ámbito regional. El trabajo ofrece una visión de cuáles han sido, desde el punto de vista de los autores, las contribuciones y los planteamientos más significativos dentro de los enfoques de funciones de producción y de costes. En el análisis se pone el énfasis en los resultados obtenidos para el caso particular de la economía española. Asimismo, las conclusiones están íntegramente dedicadas a extraer algunas recomendaciones que deberían tenerse en cuenta en el futuro, a la hora de llevar a cabo las políticas económicas de inversión pública en infraestructuras en España
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