Pirineos最新文献

{"title":"Régimen térmico de suelos del macizo central de Picos de Europa (España)","authors":"Alfonso Pisabarro Pérez, E. Cañadas, J. Trueba","doi":"10.3989/PIRINEOS.2015.170003","DOIUrl":"https://doi.org/10.3989/PIRINEOS.2015.170003","url":null,"abstract":"The study of ground temperatures in a wet and temperate high mountain has got large interest because determines significant geomorphological processes in a periglacial environment. The aim of the research is to analyse the main thermal processes of ground along the year at different altitudes in the central massif of Picos de Europa (43°18’ - 43°7’N; 5°7’ - 4°36’W). Methodology has been used in the Alps and consists in temperature data that were obtained by 12 temperature data loggers undertaken at 10 cm with diverse locations between 1110 and 2535 m a.s.l. searching for altitudinal stepping and the coldest locations. The paper show the next parameters: thermal regime, freeze and thaw cycles, freeze index, duration and depth freeze. The thermal regime varies according topoclimatic conditions but it was possible to determinate four annual phases in function of snow cover behavior induced through the thermal registers. The year period best analyzed has been winter and spring, when the ground is protected by a big snow cover and in consequence there are not freeze and thaw cycles. During this period registers allow to asseverate the evidence of seasonal freeze grounds in five locations and the possibility in another six. However the data were not enough to discover permafrost.","PeriodicalId":39887,"journal":{"name":"Pirineos","volume":"8 9 1","pages":"010"},"PeriodicalIF":0.0,"publicationDate":"2015-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89669917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estado ecológico de los ríos incluidos dentro del parque Nacional de Ordesa y Monte Perdido (Cuenca del Ebro, Aragón), mediante indicadores de macroinvertebrados","authors":"M. Valladolid, M. Arauzo, L. Jiménez","doi":"10.3989/PIRINEOS.2015.170002","DOIUrl":"https://doi.org/10.3989/PIRINEOS.2015.170002","url":null,"abstract":"We provide information about the ecological status of Arazas, Bellos and Yaga rivers (Ordesa y Monte Perdido National Park), obtained from samples collected by volunteers during the 2013 spring-summer season, included in the “Volunteering activities in the Parks Network” program (MAGRAMA). In each river three points have been selected, all belonging to Type 27: High mountain rivers, except one that is Type 26: Humid calcareous mountain river. For each point several macroinvertebrate indexes (IBMWP, IASPT, NFAM, NFPLE and EPT) and their ecological quality ratios (EQR) were calculated. As a whole, 72% of the IBMWP measurements show Very good or Good quality, a 22% Moderate and a 6% Deficient . The Yaga River showed all the measures as Very Good-Good while in the Arazas River we found the three classes of quality cited. In general, for each river the values of the indexes are decreasing from mouth to source, while most of values are increasing in a temporal pattern (from spring to late summer) in each sampling point, except in two points, Arazas-3 and Bellos-2, that show the opposite pattern.","PeriodicalId":39887,"journal":{"name":"Pirineos","volume":"10 1","pages":"009"},"PeriodicalIF":0.0,"publicationDate":"2015-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86000487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distribución y abundancia de la población reproductora de Treparriscos ( Tichodroma muraria ) en Aragón","authors":"J. Gil, C. A. Pérez","doi":"10.3989/PIRINEOS.2015.170004","DOIUrl":"https://doi.org/10.3989/PIRINEOS.2015.170004","url":null,"abstract":"With the completion of the Ornithological Atlas of Aragon only a first approximation of the distribution of the breeding population of Wallcreeper (Tichodroma muraria) in Aragon was made. In this paper we update the information about its distribution and we made a first estimate of population size. Overall total 145 records were obtained during the breeding season (May-August) between the years 1982 to 2014 are obtained. Breeding areas were located at an average altitude of 2.409 ± 572 meters, and 62% records were made in areas with basic rocks. Nest building took place between May and early June, incubation between June and July, chicks rearing between June and late July and family groups were formed in August. The distribution encompasses 40 UTM 10x10 km (an increase of 133% on the distribution given in the Ornithological Atlas of Aragon) and 87 1x1 Km squares. It is present in all the Aragon Pyrenees mountain ranges, except for Culfreda and Acherito and Mesa de los Tres Reyes, where no records of presence were obtained. The area of occupancy with proven presence was 83 km2 and potential occupancy areas was 664.96 km2 and an area of maximum occupancy of 495.45 km2. We estimated population size on 705 breeding territories potential for the area, territories with a density of 0.13 territories/km2 and 525 territories for the area of maximum occupancy, with a density of 0.18 territories/km2 Taking into account existing information available on the species in Aragon (1,410 breeding individuals), the Wallcreeper should be included in the category of Least Concern according (IUCN criteria) and its population size should be updated in the Pyrenees (southern slope).","PeriodicalId":39887,"journal":{"name":"Pirineos","volume":"39 1","pages":"011"},"PeriodicalIF":0.0,"publicationDate":"2015-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90462954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"North Pyrenean populations of Megabunus diadema (Fabricius, 1779) (Arachnida: Opiliones) are characterized by highly male-biased sex ratios","authors":"F. D’Amico, S. Danflous","doi":"10.3989/PIRINEOS.2015.170009","DOIUrl":"https://doi.org/10.3989/PIRINEOS.2015.170009","url":null,"abstract":"Megabunus diadema (Fabricius, 1779) is an Atlantic and European harvestman species characterized by a discontinuous distribution from Scandinavia to the Iberian Peninsula. With very few male individuals ever observed in the field until now, the biological uniqueness of the species lies in its reproduction mode, hitherto regarded as asexual, facultative parthenogenesis. \u0000Based on a large sample of 741 sexed individuals, the study indicates a sex ratio much higher than what was formerly known, equal to 65.58% of males. Locally varying from 0 to 100% (median 75.5% of males), the sex ratio depends indeed on the altitude and the phenological cycle: the proportion of males decreases with increasing altitude and increases gradually during the spring to reach a plateau in summer. By describing populations locally dominated by male individuals and providing new information on the spatial and temporal patterns of tertiary sex ratio, we question the currently admitted reproduction mode of the species which could be normally sexual, at least locally, rather than asexual. \u0000A distribution map of the species on the northern slope of the Pyrenees is provided for the first time. Our study also complements the distribution for the southern slopes of the Pyrenees and the rest of the Iberian Peninsula published recently by Merino-Sainz et al. (2013).","PeriodicalId":39887,"journal":{"name":"Pirineos","volume":"57 1","pages":"016"},"PeriodicalIF":0.0,"publicationDate":"2015-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79400024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Análisis de la disponibilidad de hábitat adecuado para el lobo ( Canis lupus ) en Cataluña y en los Pirineos orientales","authors":"Carla Garcia-Lozano, J. Pintó, J. Subirós","doi":"10.3989/PIRINEOS.2015.170007","DOIUrl":"https://doi.org/10.3989/PIRINEOS.2015.170007","url":null,"abstract":"After decades of absence of the wolf ( Canis lupus ) in the Pyrenees, since the end of the decade of the nineties some solitary specimens were detected in the eastern half of the mountains. Wolf establishment will depend on several factors, among which it is worth mentioning specie conservation measures, habitat availability and landscape’s ecological connectivity. The present study analyzes the availability of suitable habitat for wolf in Catalonia and the French side of oriental Pyrenees, by means of a map of resistance surfaces for the predator based on seven territorial and environmental parameters. Afterwards, the most suitable zones have been selected and have been delimited those geographic areas which could be home for wolves in a near future. The results of the analysis confirm that one-third of the studied area constitutes an optimal habitat for wolf and around 90% of these spaces are provided with enough dimensions to hold stable wolves’ populations.","PeriodicalId":39887,"journal":{"name":"Pirineos","volume":"6 1","pages":"014"},"PeriodicalIF":0.0,"publicationDate":"2015-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81919248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"La expansión del quejigo (Quercus faginea) en el Prepirineo Aragonés durante la segunda mitad del siglo XX","authors":"Yacine Kouba, C. L. Alados","doi":"10.3989/PIRINEOS.2014.169002","DOIUrl":"https://doi.org/10.3989/PIRINEOS.2014.169002","url":null,"abstract":"The expansion of Quercus faginea Lam. -due to a decrease in human pressure- was investigated in seven municipalities of the Aragon’s Pre-Pyrenees over the second half of the twentieth century. The rural emigration that occurred in this area since 1960s has generated a massive abandonment of agricultural lands and a decrease in livestock pressure. As a result, some abandoned fields have been colonized by Q. faginea; specially, in the municipalities that have known a marked decrease in the numbers of farmers and livestock. With the continued decrease of human pressure in the territory, it is expected that Q. faginea will colonize new areas during the next years as a result of secondary succession.","PeriodicalId":39887,"journal":{"name":"Pirineos","volume":"234 1","pages":"002"},"PeriodicalIF":0.0,"publicationDate":"2014-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75747440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cambios en los usos y cubiertas del suelo y los efectos en la vulnerabilidad en las comarcas de montaña de Cataluña. Del rol del fuego como herramienta de gestión a los incendios como amenaza","authors":"A. Badia, A. Pèlachs, Antoni F. Tulla, J. M. Soriano","doi":"10.3989/PIRINEOS.2014.169001","DOIUrl":"https://doi.org/10.3989/PIRINEOS.2014.169001","url":null,"abstract":"Fire is one of the oldest and most efficient tools for managing land use in the Pyrenees and has contributed to shaping a landscape of great cultural and ecological diversity. Human actions affecting land cover have introduced certain changes that affect the role and our perception of forest fires, converting them from one of the normal processes of nature into a serious threat to ecosystems and to society. This study addresses the question: what specific changes in the Pyrenees have led to the current perception of forest fire as a risk or threat? Using GIS and statistical analysis, we conducted a quantitative assessment of land cover changes and we reviewed the forest fires that have occurred in the counties (comarques) of the Catalan Pyrenees between 1993-2007, in terms of seasonality and some characteristics of the territory as altitude, slope and orientation. The results shows that: a) land cover change tend to forestry and a more homogeneous landscape; b) most surface burned occurred in bush and clear forest, what is a sign of the trend of forest transition; c) there is a concentration of fires in winter ahead of summer and are located in accessible areas.","PeriodicalId":39887,"journal":{"name":"Pirineos","volume":"32 1","pages":"001"},"PeriodicalIF":0.0,"publicationDate":"2014-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91381081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Los visitantes del Parc Natural de l’Alt Pirineu y la práctica de actividades recreativo-deportivas. una propuesta de segmentación","authors":"E. I. Farias, S. Monserrat","doi":"10.3989/PIRINEOS.2014.169005","DOIUrl":"https://doi.org/10.3989/PIRINEOS.2014.169005","url":null,"abstract":"In recent years there has been a large increase in the practice of recreational and sports activities in protected natural areas. As part of the planning and management of public use of these areas, is essential to a deeper understanding of the characteristics of the visitors. This study analyzes the characteristics of the different segments of visitors to Alt Pirineu Natural Park based on recreational and sports activities practiced. For this study, 1.600 surveys were conducted in 16 sampling points over a calendar year between the months of July 2010 and June 2011. In total we identified eight segments of visitors based on physical activity: walkers, recreational hikers, hikers, mountaineer, cyclists, mushroom picker, off road driver and skier. The results obtained here are discussed in terms of their possible applicability in the management of public use of this park and other protected natural areas and also for the development of management strategies and awareness campaigns aimed at different segments of visitors.","PeriodicalId":39887,"journal":{"name":"Pirineos","volume":"50 1","pages":"005"},"PeriodicalIF":0.0,"publicationDate":"2014-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84634557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influencia del cambio climático en el turismo de nieve del Pirineo. Experiencia del proyecto de investigación NIVOPYR","authors":"M. Pons, J. L. Moreno, P. Esteban, S. Maciá, J. Gavaldá, C. García, Martí Rosas-Casals, Eric Jover","doi":"10.3989/PIRINEOS.2014.169006","DOIUrl":"https://doi.org/10.3989/PIRINEOS.2014.169006","url":null,"abstract":"In the last decades, several studies have demonstrated and given a valuable insight about the existence of a global climate change. Even though the existence of a high regional heterogeneity about the level and temporality of climate change impacts, the trends of the potential future changes on the temperature and precipitation patterns are better known and consequently the potential impacts on the Biosphere and the Cryosphere. In this context, mountain regions have been identified as highly vulnerable areas to the effects of climate change and especially interesting areas for the detection and assessment of the potential changes and impacts. Moreover, in the last few decades, winter tourism, highly dependent on weather and snow availability, has become one of the main economic activities and source of local development in many mountain regions around the world. The Pyrenees, one of the most important winter tourism areas in Europe after the Alps, is a clear example of this pattern. \u0000The aim of the NIVO PYR project, an international research project in the framework of the Working Community of the Pyrenees (CTP), is to analyze the effects of the climate change on the winter tourism, and especially alpine ski tourism, in the Pyrenees. In order to achieve this objective the project intended to joint the current knowledge about the effects of climate change on temperatures, precipitations, snow cover and skiers behavior in the Pyrenees and develop for first time objective and accurate results for this area. To achieve this goal several methods have been used including, historical analysis of climatical series evolution, assessment of different future climate change scenarios for the Pyrenees, modeling future snowpack based on surface energy balance models and agent based modeling for coupling physical and socioeconomic parameters. One of the main results of this project was the identification of different ski resorts profiles depending on their vulnerability to climate change. Three different groups were identified. The first group includes the high vulnerable ski resorts, effected both by a mid and a high-climate change scenario. The second group, includes the low vulnerable ski resorts, affected by a high-climate change scenario but able to be viable with technical adaptation measures in a mid-climate change scenario. Finally, the group of resilient ski resorts includes the geographically and socioeconomically privileged compared to the rest of Pyrenean ski resorts. These ski resorts would be viable both in a mid and a high-climate change scenario just applying technical adaptation strategies.","PeriodicalId":39887,"journal":{"name":"Pirineos","volume":"36 1","pages":"006"},"PeriodicalIF":0.0,"publicationDate":"2014-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75381250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic and environmental characterization of Abies alba Mill. populations at its western rear edge","authors":"D. Sancho-Knapik, J. Peguero-Pina, E. Cremer, J. Camarero, Á. Fernández-Cancio, N. Ibarra, M. Konnert, E. Gil-Pelegrín","doi":"10.3989/PIRINEOS.2014.169007","DOIUrl":"https://doi.org/10.3989/PIRINEOS.2014.169007","url":null,"abstract":"The genetic structure of ten Abies alba populations at the western rear edge in the Spanish Pyrenees was characterized and compared with two German populations, looking for the role of climatic factors in the fir decline. Growth, defoliation, aridity and cumulative summer water deficit summer were also characterized. Spanish populations show a lower genetic diversity and a high genetic differentiation than German ones, mainly established by an East (higher diversity)-West (lower diversity) gradient. The three defoliated populations are the western ones, with higher summer aridity. Contrastingly, the southern population (Guara) shows climatic variables close to western sites but without defoliation and with a higher genetic diversity, indicating a possible adaptation to the sub-Mediterranean conditions. Silver fir in the Spanish Pyrenees constitutes a “stable” rear edge because of their isolation, small sized and small genetic diversity. Western Pyrenean sites subjected to dryer conditions and presenting lower genetic diversity are prone to drought-induced mortality in the context of global warming.","PeriodicalId":39887,"journal":{"name":"Pirineos","volume":"39 1","pages":"007"},"PeriodicalIF":0.0,"publicationDate":"2014-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90597764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}