Browsing by browse.metadata.contributordepartment "Ecología e Hidrología"
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- PublicationEmbargoA conceptual framework for understanding the biogeochemistry of dry riverbeds through the lens of soil science(Elsevier, 2019) Arce, María Isabel; Mendoza Lera, Clara; Almagro, María; Catalán, Nuria; Romaní, Anna M.; Martí, Eugenia; Gómez Cerezo, Rosa María; Bernal, Susana; Foulquier, Arnaud; Mutz, Michael; Marcé, Rafael; Zoppini, AnnaMaria; Gionchetta, Giulia; Weigelhofer, Gabriele; Campo, Rubén del; Robinson, Christopher T.; Gilmer, Alan; Rulik, Martin; Obrador, Biel; Shumilova, Oleksandra; Zlatanović, Sanja; Arnon, Shai; Baldrian, Petr; Singer, Gabriel; Datry, Thibault; Skoulikidis, Nikos; Tietjen, Britta; Schiller, Daniel von; Ecología e HidrologíaIntermittent rivers and ephemeral streams (IRES) encompass fluvial ecosystems that eventually stop flowing andrun dry at some point in space and time. During the dry phase, channels of IRES consist mainly of dry riverbeds(DRBs), prevalent yet widely unexplored ecotones between dry and wet phases that can strongly influence thebiogeochemistry of fluvial networks. DRBs are often overlooked because they do not strictly belong to eitherdomain of soil or freshwater science. Due to this dual character of DRBs, we suggest that concepts and knowledgefrom soil science can be used to expand the understanding of IRES biogeochemistry. Based on this idea, wepropose that DRBs can be conceptually understood as early stage soils exhibiting many similarities with soilsthrough two main forces: i) time since last sediment transport event, and ii) the development status of stabilizingstructures (e.g. soil crusts and/or vascular plants). Our analysis suggests that while DRBs and soils may differ inmaster physical attributes (e.g. soil horizons vs fluvial sedimentary facies), they become rapidly comparable interms of microbial communities and biogeochemical processes. We further propose that drivers of DRBs biogeochemistry are similar to those of soils and, hence, concepts and methods used in soil science are transferableto DRBs research. Finally, our paper presents future research directions to advance the knowledge of DRBs and tounderstand their role in the biogeochemistry of intermittent fluvial networks.
- PublicationOpen AccessAlgunas consideraciones para un modelo ecológico de gestión del agua en España(2010-07-27) Vidal-Abarca Gutiérrez, María Rosario; Suárez Alonso, María Luisa; Ecología e Hidrología
- PublicationOpen AccessAnálisis descriptivo de las ramblas de la Región de Murcia (SEd e España)(2010-07-30) García García, Victoria; Fichtelmann, Thomas; Gómez, Rosa; Vidal-Abarca Gutiérrez, María Rosario; Suárez Alonso, María Luisa; Ecología e Hidrología
- PublicationEmbargoAre the endemic water beetles of the Iberian Peninsula and the Balearic Islands effectively protected?(Elsevier, 2008-05-27) Sánchez Fernández, David; Bilton, David T.; Abellán, Pedro; Ribera, Ignacio; Velasco, Josefa; Milán, Andrés; Ecología e HidrologíaOne of the most serious environmental problems is the current acceleration in the rate of species extinction associated with human activities, which is occurring particularly rapidly in freshwaters. Here we examine whether endemic water beetles are effectively protected by existing conservation measures in the Iberian Peninsula and the Balearic Islands, a region of high diversity and intense human pressure. We used an exhaustive database for aquatic beetles in the region to address such issues. Firstly, we identify the most threatened endemic taxa using a categorization system to rank species according to their conservation priority or vulnerability. Of the 120 endemic species of water beetles used in the analysis, only two (Ochthebius ferroi and Ochthebius javieri) were identified as being extremely vulnerable, 71 were highly vulnerable and 46 moderately vulnerable, with only a single species identified as having low vulnerability status. Since no Iberian species of aquatic Coleoptera has legal protection, the only conservation measure available for these species is the extent to which they occur in protected areas. Here we identify distributional hotspots for threatened endemic species, and evaluate the extent to which these are already included in the Natura 2000 network in Spain and Portugal. Despite a high degree of concordance between hotspots and Natura 2000 sites, the distribution of four species falls completely outside the network. The analysis also reveals that Natura 2000 fails to protect saline water bodies, despite their high conservation interest and narrow global distribution. The picture revealed here with water beetles is likely to be similar for others groups of freshwater macroinvertebrates, since Coleoptera are known to be good surrogates of aquatic biodiversity in the region. Finally, the degree of protection provided via Natura 2000, and the utility of red lists are discussed.
- PublicationOpen AccessBat ecology and conservation in semi-arid and arid landscapes: a global systematic review(2019) Lison, Fulgencio; Jiménez Franco, María V.; Altamirano, Adison; Haz, Ángeles; Calvo, José Francisco; Jones, Gareth; Ecología e Hidrología1. Semi-arid and arid landscapes (dry-lands) cover 41% of the Earth’s land surface over five continents. These areas are home to 55% of mammal spe cies. Bats have the second highest species richness among mammals, and, although many species are adapted to arid conditions, they are particularly sensitive in these habitats and require conservation priority. 2. Information on bats in arid and semi-arid landscapes is scattered, patchy and focused on small-scale studies; therefore, we undertook a systematic re view using the PRISMA protocol to identify the current knowledge status, detect knowledge gaps and propose future research priorities. 3. We analysed 346 published articles and evaluated 40 topics within five topic categories (taxa studied, methodologies used, biology, ecology and conserva tion). The most commonly studied topic categories were ecology and biology. However, we found a gap in the topic category conservation (including topics such as conservation status and roost conservation). Our network analysis of topics within the categories showed that most ecology papers were focused on distribution, species richness and habitat use. 4. When we analysed keywords, we found that phylogeny, taxonomy and dis tribution demonstrated relatively high presence. Moreover, comparison of the percentage of studies conducted in dry-lands and the percentage of land surface area covered by dry-lands in the continents revealed that dry-lands in Africa and Australia were especially under-represented. Our review shows that knowledge of bats in semi-arid and arid landscapes is biased towards new records of the distribution of species, as well as covering systematic/ taxonomic and morphological aspects of bat biology 5. We suggest that research on conservation measures and guidelines to protect the bat species found in semi-arid and arid landscapes should be prioritised, together with the sharing of knowledge with local practitioners and the de velopment of citizen science programmes
- PublicationOpen AccessBias in freshwater biodiversity sampling : the case of Iberian water beetles(Wiley, ) Sánchez Fernández, David; Lobo, Jorge M.; Abellán, Pedro; Ribera, Ignacio; Millán, Andrés; Ecología e HidrologíaExtensive distributional data bases are key tools in ecological research, and good-quality data are required to provide reliable conservation strategies and an understanding of biodiversity patterns and processes. Although the evaluation of data bases requires the incorporation of estimates of sampling effort and bias, no studies have focused on these aspects for freshwater biodiversity data. We used here a comprehensive data base of water beetles from the Iberian Peninsula and the Balearic Islands, and examine whether these data provide an unbiased, reliable picture of their diversity and distribution in the study area. Based on theoretical estimates using the Clench function on the accumulated number of records as a surrogate of sampling effort, about a quarter of the Iberian and Balearic 50 × 50 km Universal Transverse Mercator grid cells can be considered well prospected, with more than 70% of the theoretical species richness actually recorded. These well-surveyed cells are not evenly distributed across biogeographical and physicoclimatic subregions, reflecting some geographical bias in the distribution of sampling effort. Our results suggest that recording was skewed by relatively simple variables affecting collector activity, such as the perceived ‘attractiveness’ of mountainous landscapes and protected areas with recently described species, and accessibility of sampling sites (distance from main research centres). We emphasize the importance of these evaluation exercises, which are useful to locate areas needed of further sampling as well as to identify potential biases in the distribution of current biodiversity patterns.
- PublicationOpen AccessLa calidad de las aguas del canal del desagüe de El Reguerón (Río Guadalentín: Cuenca del Segura)(Universidad de Murcia, 1983) Suárez Alonso, María Luisa; Vidal-Abarca Gutiérrez, María Rosario; Montes, Carlos; Soler, Agustín; Ecología e Hidrología
- PublicationOpen AccessCalidad ecológica de la zona de protección especial "Los Chorros del Río Mundo" (Albacete). Aplicación de la Directiva Marco del Agua(2010-07-27) Gómez, Rosa; Guerrero, Cristina; Mellado, Andrés; Sánchez Montoya, María del Mar; Hurtado, Isabel; Espinosa, María Isabel; Moreno, J. Luís; Suárez Alonso, María Luisa; Vidal-Abarca Gutiérrez, María Rosario; Ecología e Hidrología
- PublicationOpen AccessCaracterización ecológica y ambiental del Arroyo Blanco como espacio natural para definir las condiciones de referencia en aplicación de la Directiva Marco del Agua(2010-07-27) Mellado, Andrés; Sánchez Montoya, María del Mar; García García, Victoria; Suárez Alonso, María Luisa; Vidal-Abarca Gutiérrez, María Rosario; Gómez, Rosa; Ecología e Hidrología
- PublicationOpen AccessComposición y estructura de una comunidad de larvas de odonatos (Zygoptera & Anisoptera) en un río del S.E de España:Cuenca del Río Mula (Río Segura)(1986) Suárez Alonso, María Luisa; Vidal-Abarca Gutiérrez, María Rosario; Soler, Agustín; Montes, Carlos; Ecología e Hidrología
- PublicationOpen AccessLa cuenca del Río Segura: historias para no dormir.(2010-07-27) Vidal-Abarca Gutiérrez, María Rosario; Suárez Alonso, María Luisa; Ramírez Díaz, Luis; Ecología e Hidrología
PublicationOpen AccessDatos del manuscrito "Acoustic telemetry and accelerometers: a field comparison of different proxies for activity in the marine environment", por Pereñíguez JM, Venerus LA, Gutiérrez-Cánovas C, Abecasis D, Ciancio JE, Jiménez-Montalbán P, y García-Charton JA(Oxford University Press, ) Pereñíguez López, Jose Manuel; García Charton, José Antonio; García Charton, José Antonio; Ecología e HidrologíaBases de datos utilizadas para los análisis del artículo "Acoustic telemetry and accelerometers: a field comparison of different proxies for activity in the marine environment". Existen 5 bases de datos, una base de datos para los objetivos 1, 2 y 3, y dos bases de datos para el objetivo 4, correspondientes a las series temporales corta y larga descritas en el manuscrito.- PublicationOpen AccessDatos del manuscrito "Detection of protection benefits on predatory fishes depends on the census methodology adopted", por Rojo I, Irigoyen AJ, Cuadros A, Calò A, Pereñíguez JM, Hernández-Andreu R, Félix-Hackradt F, Carreño F, Hackradt CW & García-Charton JA(2020-03-30) Rojo Moreno, Irene; García Charton, José Antonio; García Charton, José Antonio; Ecología e HidrologíaBase de datos de peces de fondos rocosos utilizando diferentes métodos de censo visual en 5 reservas marinas del Mediterráneo occidental, que forman parte del trabajo de tesis doctoral de la primera autora, y utilizados en el artículo "Detection of protection benefits on predatory fishes depends on the census methodology adopted"
- PublicationOpen AccessDatos del manuscrito "exceptionally high but still growing predatory reef biomass after 23 years of protection in a Mediterranean Marine Protected Area"(2020-05-25) Rojo Moreno, Irene; Anadón, José Daniel; García Charton, José Antonio; García Charton, José Antonio; Ecología e HidrologíaDatos de abundancia y biomasa de peces en arrecifes rocosos de la reserva marina de Cabo de Palos - Islas Hormigas, obtenidos mediante. censos de peces en inmersión con escafandra autónoma, durante el periodo 1996-2018
- PublicationOpen AccessDistribución de Tricochorixa verticalis verticalis (Fieber 1851) (Heteroptera: Corixidae) a nivel mundial y su expansion en la Península Ibérica.(2013-01-14) Carbonell Hernández, José Antonio; Guareschi, Simone; Sánchez Fernández, David; Velasco García, Josefa; Millán Sánchez, Andrés; Coccia, C.; Boyero, L.; Green, A. J.; Ecología e Hidrología
- PublicationEmbargoDry phase conditions prime wet‐phase dissolved organic matter dynamics in intermittent rivers(Wiley Periodicals, Inc., ) Campo, Rubén del; Gómez Cerezo, Rosa María; Singer, Gabriel; Ecología e HidrologíaDuring the dry phase of intermittent rivers, diverse particulate organic materials, such as leaf litter or macrophytes, remain on dry riverbeds. Together with riverbed sediments, these organic substrates are exposed to various environmental conditions that can alter their chemical composition, with potential implications for later use by heterotroph consumers when flow is re-established. Here, we investigate how different environmental conditions during the dry phase alter quantity, composition, and biodegradability of dissolved organic matter (DOM) leached from dry riverbeds. To this end, we simulated the “preconditioning” of various DOM sources during a dry phase of 60 d under conditions mimicking open- and closed-canopy rivers. Over the whole experiment, we produced leachates for measurements of nutrients and dissolved organic carbon (DOC) concentration, DOM characterization by absorbance and fluorescence measurements and ultrahigh-resolution mass spectrometry, and DOM biodegradability. We found that rain, solar radiation, and its associated heat greatly affected leached DOM quantity, composition, and biodegradability. Under open-canopy conditions, sporadic rain caused the impoverishment of nutrients and DOC by leaching, whereas intense solar radiation and associated heat resulted in a drop of DOM quality and biodegradability by accelerated humification of DOM. In contrast, the preconditioning of DOM sources under a closed canopy barely affected DOM quality and biodegradability because of the protection from rain, solar radiation, and heat by the forest vegetation. Our results suggest that contrasting environmental conditions during the dry phase in open- vs. closed-canopy intermittent rivers can translate into radically different DOM processing during the early wet phase.
- PublicationOpen AccessEcological values of intermittent rivers for terrestrial vertebrate fauna(Elsevier, 2022-02) Sánchez Montoya, María del Mar; Gómez Cerezo, Rosa María; Calvo, Jose Francisco; Bartonička, Tomáš; Thibault, Datry; Paril, Petr; Ecología e HidrologíaRivers are generally considered critical habitats for biodiversity; however, this often ignores the fact that many rivers may run dry and support terrestrial as well as aquatic fauna. Here, we investigated the ecological value of intermittent rivers for terrestrial vertebrates by installing camera traps along rivers subject to varying dry periods in two contrasting European climatic zones. We then analysed i) species presence and behaviours (as a proxy of ecological functions) on perennial and intermittent streams; ii) environmental (hydrological and geomorphological) and anthropogenic factors affecting the frequency of occurrence and number of species recorded; and iii) the importance of hydrological factors as regards ecological functioning. In both study areas,we recorded a higher number of species and individuals along intermittent streams than perennial streams, with highest values in intermittent reaches exhibiting shorter dry periods. Both abundance and species richnesswere strongly affected by hydrological factors in both study areas, including not only the occurrence but also the duration of the dry period. Dry channels played a key role as migration corridors and as a source of food, being used more frequently than riparian habitatswhen the river ran dry. Our findings indicate that terrestrial vertebrate fauna benefit fromdry phases in rivers. Intermittent rivers, supporting a high abundance and diversity of fauna, should be considered as target ecosystems for wildlife conservation. Not doing so will jeopardise urgently needed conservation strategies in the face of accelerating global climate change.
- PublicationOpen AccessEfectividad de la Red de Parques Nacionales Ibérica en la protección de la biodiversidad acuática.(2013-01-15) Millán Sánchez, Andrés; Abellán Ródenas, Pedro; Sánchez Fernández, David; Picazo Mota, Félix; Velasco García, Josefa; Lobo, Jorge Miguel; Ribera Galán, Ignacio; Ecología e Hidrología
- PublicationEmbargoEffectiveness of the Natura 2000 network in protecting Iberian endemic fauna(Wiley, 2017) Rosso, A.; Aragón, Pedro; Acevedo, F.; Doadrio, I.; García Barros, E.; Lobo, Jorge M.; Munguira, M.L.; Monserrat, V.J.; Palomo, J.; Pleguezuelos, J.M.; Romo, H.; Triviño, V.; Sánchez Fernández, David; Ecología e HidrologíaThe Iberian Peninsula is a major European region of biodiversity, as it harbours more than 30% of European endemic species. Despite a number of studies having evaluated the ability of nature reserves to protect certain taxa, there is still a lack of knowledge on how Iberian endemic fauna are represented in these reserves. We detected biodiversity hotspots of Iberian endemicity and evaluated the effectiveness of the Natura 2000 network (N2000) in representing 249 endemic species from eight animal taxonomic groups (amphibians, mammals, freshwater fishes, reptiles, water beetles, butterflies, lacewings and dung beetles). We found that only the 10% of these Iberian endemic species are considered species of community interest (i.e. species included in the Annexes of the Habitats Directive). We conducted gap analyses and null models of representativeness in N2000. Generally, N2000 is effective in its representation of Iberian endemic fauna, although we detected spe-cies and few hotspots of endemism that were still not represented. It is necessary to declare a few new protected areas, thus enhancing N2000’s effectiveness in the conservation of the Iberian endemic fauna. Although the aim of N2000 is to pro-tect species listed in the Birds and Habitats Directives, the conservation status of endemic species from one of the most important areas of Europe in terms of biodi-versity, could be also a concern for the European Union. Our results are useful in the context of the recent European Commission mandate calling for a ‘fitness check’ of the Birds and Habitats Directives. This approach could be also applicable to other regions with high value of endemicity.
- PublicationEmbargoEffects of salinity changes on aquatic organisms in a multiple stressor context(The Royal Society, 2019-01-21) Velasco, Josefa; Cayetano Gutiérrez-Cánovas, Cayetano; Botella Cruz, María; Sánchez Fernández, David; Arribas, Paula; Carbonell, José Antonio; Millán, Andrés; Pallarés, Susana; Ecología e HidrologíaUnder global change, the ion concentration of aquatic ecosystems is changing worldwide. Many freshwater ecosystems are being salinized by anthropogenic salt inputs, whereas many naturally saline ones are being diluted by agricultural drainages. This occurs concomitantly with changes in other stressors, which can result in additive, antagonistic or synergistic effects on organisms. We reviewed experimental studies that manipulated salinity and other abiotic stressors, on inland and transitional aquatic habitats, to (i) synthesize their main effects on organisms' performance, (ii) quantify the frequency of joint effect types across studies and (iii) determine the overall individual and joint effects and their variation among salinity–stressor pairs and organism groups using meta-analyses. Additive effects were slightly more frequent (54%) than non-additive ones (46%) across all the studies (n = 105 responses). However, antagonistic effects were dominant for the stressor pair salinity and toxicants (44%, n = 43), transitional habitats (48%, n = 31) and vertebrates (71%, n = 21). Meta-analyses showed detrimental additive joint effects of salinity and other stressors on organism performance and a greater individual impact of salinity than the other stressors. These results were consistent across stressor pairs and organism types. These findings suggest that strategies to mitigate multiple stressor impacts on aquatic ecosystems should prioritize restoring natural salinity concentrations. This article is part of the theme issue ‘Salt in freshwaters: causes, ecological consequences and future prospects’.