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 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 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 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
- 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 AccessEstudios de seguimiento de la reserva marina /de Cabo de Palos – Islas Hormigas - 2017(2020-04-17) García Charton, José Antonio; Barcala Bellod, Elena; Boza Vindel, Cristina; Carretero Sánchez, Lorena; Cuadros Casado, Isabel Amalia; Orenes Salazar, Víctor; Pereñíguez López, José Manuel; Rojo Moreno, Irene; Sandoval Cánovas, Virginia; Trujillo Alarcón, María; García Charton, José Antonio; Ecología e Hidrología
- PublicationOpen AccessEstudios de seguimiento de la reserva marina de Cabo de Palos – Islas Hormigas - 2016(2020-04-17) García Charton, José Antonio; Calò, Antonio; Cuadros Casado, Isabel Amalia; Fuzio, Francesca; Hernández Andreu, Ramon; Pereñíguez López, José Manuel; Rojo Moreno, Irene; Terranova, Chiara; Marcos Diego, Concepción; Pérez Ruzafa, Ángel; García Charton, José Antonio; Ecología e Hidrología
- PublicationOpen AccessEstudios de seguimiento de las reservas marinas de Cabo de Palos – Islas Hormigas y Cabo Tiñoso - 2018(2020-04-17) García Charton, José Antonio; Barcala Bellod, Elena; Cuadros Casado, Isabel Amalia; Orenes Salazar, Víctor; Pereñíguez López, José Manuel; Rojo Moreno, Irene; Sandoval Cánovas, Virginia; Trujillo Alarcón, María; García Charton, José Antonio; Ecología e Hidrología
- PublicationEmbargoEvaluating drivers of vulnerability to climate change: a guide for insect conservation strategies(Wiley, 2012) Arribas, Paula; Abellán, Pedro; Velasco, Josefa; Bilton, David T.; MIillán, Andrés; Ecología e HidrologíaOngoing global climate change presents serious challenges in conservation biology, forcing us to revisit previous tools and principles based on how species may respond to novel climatic conditions. There is currently a major gap between predictions of species vulnerability and management strategies, despite the fact that linking these areas is fundamental for future biodiversity conservation. Herein, we evaluate what drives vulnerability to climate change in three Iberian endemic water beetles, representing three independent colonizations of the same habitat, employing comparative thermal physiology, species distribution models and estimations of species dispersal capacity. We derive conservation strategies for each species based on their differential capacity to persist and/or potential to shift their ranges in response to global warming. We demonstrate that species may be affected by climatic warming in very different ways, despite having broadly similar ecological and biogeographical traits. The proposed framework provides an effective complement to traditional species vulnerability assessments, and could aid the development of more effective conservation strategies in the face of global warming.
- PublicationOpen AccessExploring the complex relations between water resources and social indicators: The Biobío Basin (Chile)(2018) Díaz, M.E.; Figueroa, R.; Suárez, M.L.; Vidal-Abarca Gutiérrez, María Rosario; Ecología e HidrologíaBasins are one of the bio-geo-physical areas where the ecological processes that generate the ecosystem services (ES) and contribute to human well-being (HWB) are more evident. They are also the physical scenario where the nature-human interaction is more intense. The explicit relationships that link biodiversity, ES and HWB, and the direct and indirect causes responsible for their degradation, have been rarely explored. We used the Driver-Pressure-State-Impact-Response (DPSIR) framework to explore the relationships between the river ecosystem and the Biobío Basin’s social system. We selected 65 basin and regional-scale indicators to analyse the existing trends and associations among the different DPSIR components. The trend analysis results showed major biodiversity loss and how the regulating services and non-material goods of the HWB component deteriorated, while cultural services, direct and indirect pressures and institutional responses increased. The relationships among the different DPSIR components revealed biodiversity loss to be positively associated with cultural services, the material goods of the HWB component and pressures. Indirect drivers were negatively associated with regulating and cultural services, non-material goods and pressures. Institutional responses did not correlate with any DPSIR component. However, these results do not reflect the complexity of the Biobío Basin’s socio-ecosystem. We estimate that the DPSIR framework shows a corseted and reductionist vision of a greater complexity than merely a unidirectional nature-human relationship.
- PublicationOpen AccessFunctional response of aquatic invertebrate communities along two natural stress gradients (water salinity and flow intermittence) in Mediterranean streams.(Springer, 2017) Suárez, M.L.; Sánchez-Montoya, M.M.; Gómez, R.; Arce Sánchez, María Isabel; Del Campo, R.; Vidal-Abarca Gutiérrez, María Rosario; Ecología e HidrologíaFunctional trait diversity can provide insight into ecosystem function beyond that provided by species diversity measures. The relationship between functional diversity and natural stressors has received less attention compared to anthropogenic stressors. In this study, we investigated how two natural stressors, water salinity and flow intermittence, affect functional richness and functional redundancy of aquatic invertebrate communities using seven biological traits and 39 modalities. For this purpose, we characterized these functional diversity measures in 22 Mediterranean streams with a gradient of natural salinity and flow intermittence. Our findings showed that both functional richness and functional redundancy decreased with increased stress by water salinity and flow intermittence for all the studied traits but more rapidly for the former, suggesting that water salinity is a stronger environmental stressor than flow intermittence. Our study also described an antagonistic interaction of the two study stressors, in which the net effect of both is less than the sum of their independent effects. This study emphasizes that in saline streams, characterized by lower functional richness and functional redundancy, the loss of any taxon can have a huge impact on community functioning. In particular, the functional singularity of saline intermittent streams makes them extremely sensitive to additional anthropogenic impacts. In the context of future global change scenarios, which predict higher flow intermittence and water salinity, this study gives a better understanding of the functional features of these types of ecosystems.
- PublicationOpen AccessInfluence of hydrological processes on spatial pattern of nitrogen in an arid stream of southeast Spain.(2010-07-30) García García, Victoria; Gómez, Rosa; Vidal-Abarca Gutiérrez, María Rosario; Suárez Alonso, María Luisa; Ecología e Hidrología
- PublicationOpen AccessModelos conceptuales de funcionamiento de ríos y arroyos(2010-07-30) Gómez, Rosa; Ecología e Hidrología
- PublicationEmbargoOrigin, accumulation and fate of dissolved organic matter in an extreme hypersaline shallow lake(Elsevier, 2022) Butturini, Andrea; Herzsprung, Peter; Lechtenfeld, O.J.; Alcorlo, Paloma; Benaiges-Fernandez, Robert; Berlanga, Mercedes; Boadella, Judit; Freixinos Campillo, Zeus; Gómez, Rosa; Sánchez-Montoya, María del Mar; Urmeneta, Jordi; Romaní, Anna; Ecología e HidrologíaHypersaline endorheic aquatic systems (H-SEAS) are lakes/shallow playas in arid and semiarid regions that undergo extreme oscillations in salinity and severe drought episodes. Although their geochemical uniqueness and microbiome have been deeply studied, very little is known about the availability and quality of dissolved organic matter (DOM) in the water column.. A H-SEAS from the Monegros Desert (Zaragoza, NE Spain) was studied during a hydrological wetting-drying-rewetting cycle. DOM analysis included: (i) a dissolved organic carbon (DOC) mass balance; (ii) spectroscopy (absorbance and fluorescence) and (iii) a molecular characterization with Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). The studied system stored a large amount of DOC and under the highest salinity conditions, salt-saturated waters (i.e., brines with salinity > 30%) accumulated a disproportionate quantity of DOC, indicating a significant in-situ net DOM production. Simultaneously, during the hydrological transition from wet to dry, the DOM pool showed strong alterations of it molecular composition. Spectroscopic methods indicated that aromatic and degraded DOM was rapidly replaced by fresher, relatively small, microbial-derived moieties with a large C/N ratio. FT-ICR-MS highlighted the accumulation of small, saturated and oxidized molecules (molecular O/C > 0.5), with a remarkable increase in the relative contribution of highly oxygenated (molecular O/C>0.9) compounds and a decrease of aliphatic and carboxyl-rich alicyclic moleculesThese results indicated that H-SEAS are extremely active in accumulating and processing DOM, with the notable release of organic solutes probably originated from decaying microplankton under large osmotic stress at extremely high salinities.
- PublicationOpen AccessPredicting the worldwide potential distribution of the boatman Trichocorixa verticalis verticalis (Fieber, 1851) (Heteroptera; Fam: Corixidae).(2013-01-14) Guareschi, Simone; Sánchez Fernández, David; Carbonell Hernández, José Antonio; Velasco García, Josefa; Millán Sánchez, Andrés; Coccia, C.; Boyero, L.; Green, A. J.; Ecología e Hidrología
- PublicationOpen AccessSmall ponds support high terrestrial bird species richness in a Mediterranean semiarid region(2021-03-08) Zamora Marín, Jose´ M.; Zamora López, Antonio; Jiménez Franco, María V.; Calvo, Jose´ F.; Oliva Paterna, Francisco J.; Ecología e HidrologíaPonds are among the world’s most endan gered freshwater ecosystems. A comprehensive knowledge of pond biodiversity is urgently required to inform effective pond management and conserva tion actions. Most studies about pond biodiversity focus on aquatic taxa, while the terrestrial biodiver sity, especially of birds, has been little studied. Moreover, the few studies existing on pond biodiver sity do not account for different detection rates of species, thus yielding biased results. Here, we apply a hierarchical Bayesian modelling technique to data obtained from visual censuses to estimate bird species richness associated with small ponds in a semiarid region, considering the imperfect detection of species. The model incorporates specific responses to site characteristics (pond typology), landscape (environ mental heterogeneity) and at regional scale (mean annual precipitation). The studied ponds were used by two thirds of the terrestrial breeding bird community of the study region. Our modelling approach increased by an average of 7.5 species the observed site-specific richness. Drinking troughs supported a greater rich ness than other pond types. Environmental hetero geneity was positively related with species richness, whereas no clear relation was observed between richness and precipitation. In addition to ecosystem services provided by ponds to human welfare, our results suggest these small isolated habitats may act as key landscape elements for terrestrial birds in semiarid regions.
- PublicationOpen AccessSpatio-temporal variations in mortality causes of two migratory forest raptors in Spain(2016) Martínez, José E.; Zuberogoitia, Iñigo; Jiménez Franco, María V.; Mañosa, Santi; Calvo Sendín, José Francisco; Ecología e HidrologíaAnalysis of the 949 and 434 cases of mortality of Booted Eagle Aquila pennata and Short-toed Snake Eagle Circaetus gallicus, respectively, recorded by wildlife rehabil itation centres in Spain over a 16-year period (1990–2006) shows that power lines (19.5 and 35.2 %, respectively) and killing (32.5 and 22.9 %, respectively) were the main known causes of death. Multinomial regression models were used to analyse geographical and temporal variations in the causes of death. For the Booted Eagle, both factors (zone and year) were statistically significant, while there were only significant tem poral variations for the Short-toed Snake Eagle. In the Booted Eagle, killing occurred more frequently than expected in the east and north of the country compared to the other Spanish regions. Power line casualties were significantly more fre quent in the southern and eastern regions, and less common in the north. In both species, the multinomial models indicate that while the number of cases of killing significantly de creased during the 16 years studied, power line casualties increased. Our study suggests that human-induced mortality continues to be the main factor contributing to mortality for Spanish Booted Eagles and Short-toed Snake Eagles. Since a reduction in the mortality caused by human activities is a priority in the conservation strategies for raptor species, man agement guidelines are discussed
- PublicationOpen AccessTipología de las cuencas mediterráneas del proyecto Guadalmed 2 y su coherencia con las comunidades de macroinvertebrados(2010-07-30) Puntí, Tura; Sánchez Montoya, María del Mar; Prat, Narcis; Suárez Alonso, María Luisa; Vidal-Abarca Gutiérrez, María Rosario; Poquet, J.Manuel; Robles, Santiago; Álvarez, Maruxa; Rieradevall, María; Alba Tercedor, Javier; Pujante, Ana; Toro, Manuel; Bonada, Nuria; Zamora, Carmen; Ecología e Hidrología
- PublicationOpen AccessUse of classical bird census transects as spatial replicates for hierarchical modeling of an avian community(John Wiley & Sons Ltd., 2019) Jiménez Franco, María V.; Kéry, Marc; León Ortega, Mario; Robledano, Francisco; Esteve Selma, Miguel Á.; Calvo Sendín, José Francisco; Ecología e HidrologíaNew monitoring programs are often designed with some form of temporal replication to deal with imperfect detection by means of occupancy models. However, classical bird census data from earlier times often lack temporal replication, precluding detection‐corrected inferences about occupancy. Historical data have a key role in many ecological studies intended to document range shifts, and so need to be made comparable with present‐day data by accounting for detection probability. We analyze a classical bird census conducted in the region of Murcia (SE Spain) in 1991 and 1992 and propose a solution to estimating detection probability for such historical data when used in a community occupancy model: the spatial replication of subplots nested within larger plots allows estimation of detection probability. In our study, the basic sample units were 1‐km transects, which were considered spatial replicates in two aggregation schemes. We fit two Bayesian multispecies occupancy models, one for each aggregation scheme, and evaluated the linear and quadratic effect of forest cover and temperature, and a linear effect of precipitation on species occupancy probabilities. Using spatial rather than temporal replicates allowed us to obtain individual species occupancy probabilities and species richness accounting for imperfect detection. Species‐specific occupancy and community size decreased with increasing annual mean temperature. Both aggregation schemes yielded estimates of occupancy and detectability that were highly correlated for each species, so in the design of future surveys ecological reasons and cost‐effective sampling designs should be considered to select the most suitable aggregation scheme. In conclusion, the use of spatial replication may often allow historical survey data to be applied formally hierarchical occupancy models and be compared with modern‐day data of the species community to analyze global change process.
- PublicationOpen AccessWintering raptor species distribution in a semiarid Mediterranean region: the relevance of lowlands and open habitats as stopover sites(Springer, 2024-03-08) Alvarez Martinez, M.; Leon Ortega, M.; Martinez Torrecilllas, J. E.; Calvo Sendin, J. F.; Jimenez Franco, M. V.; Ecología e HidrologíaAs land-use cover types affect wintering birds’ strategies, studying their habitat suitability for species conservation is relevant. Predictive spatial models are considered excellent tools for conservation planning and improving our understanding of species distribution. Here we build models to predict the spatial distribution of raptor species that overwinter in SE Spain. We modelled the wintering raptor species distribution based on the presence-only data obtained between 2017 and 2019 and analysed their habitat preferences based on elevation and land-use cover variables. Our results show that altitude and distance to the coastline are the most important environmental factors to affect most species’ habitat suitability. Habitat type-related factors are other important predictors, and raptors subject of this study prefer lowlands and areas close to the coastline for overwintering by selecting open habitats, which include wetlands and irrigated and rainfed crops. This study highlights the importance of the habitat heterogeneity generated by wetlands and herbaceous crops within a low-altitude range as the optimal environment for wintering raptors. Such information should be considered for raptor conservation planning in human-altered landscapes.