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Dive into the research topics where Asier Herrero is active.

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Featured researches published by Asier Herrero.


Journal of Ecology | 2016

From the individual to the landscape and back: time‐varying effects of climate and herbivory on tree sapling growth at distribution limits

Asier Herrero; Pablo Almaraz; Regino Zamora; Jorge Castro; José A. Hódar

Asier Herrero*, Pablo Almaraz, Regino Zamora, Jorge Castro and Jos e A. H odar Terrestrial Ecology Group, Department of Ecology, Faculty of Sciences, University of Granada, Avd. Fuentenueva s/n, 18071 Granada, Spain; School of Forestry, Northern Arizona University, Flagstaff, AZ 86011, USA; Department of Plant Biology and Ecology, Faculty of Science and Technology, University of Basque Country, Barrio Sarriena s/n, 48940 Leioa, Basque Country; and 4 Area de Bot anica, Departamento de Biolog ıa, Centro Andaluz Superior de Estudios Marinos (CASEM), Universidad de C adiz, Campus R ıo San Pedro, 11510 Puerto Real, C adiz, Spain


Nature Communications | 2017

Forest productivity in southwestern Europe is controlled by coupled North Atlantic and Atlantic Multidecadal Oscillations

Jaime Madrigal-González; Juan Antonio Ballesteros-Cánovas; Asier Herrero; Paloma Ruiz-Benito; Markus Stoffel; Manuel Esteban Lucas-Borja; Enrique Andivia; Cesar Sancho-García; Miguel A. Zavala

The North Atlantic Oscillation (NAO) depicts annual and decadal oscillatory modes of variability responsible for dry spells over the European continent. The NAO therefore holds a great potential to evaluate the role, as carbon sinks, of water-limited forests under climate change. However, uncertainties related to inconsistent responses of long-term forest productivity to NAO have so far hampered firm conclusions on its impacts. We hypothesize that, in part, such inconsistencies might have their origin in periodical sea surface temperature anomalies in the Atlantic Ocean (i.e., Atlantic Multidecadal Oscillation, AMO). Here we show strong empirical evidence in support of this hypothesis using 120 years of periodical inventory data from Iberian pine forests. Our results point to AMO+ NAO+ and AMO−NAO− phases as being critical for forest productivity, likely due to decreased winter water balance and abnormally low winter temperatures, respectively. Our findings could be essential for the evaluation of ecosystem functioning vulnerabilities associated with increased climatic anomalies under unprecedented warming conditions in the Mediterranean.The North Atlantic Oscillation (NAO) drives biological responses in terrestrial ecosystems through oscillatory modes of climatic variability. Here, the authors show how landscape scale productivity responses to NAO are contingent upon the Atlantic Multidecadal Oscillation in southwestern Europe.


Ecosistemas | 2016

Informe de Evaluación sobre Impactos, Vulnerabilidad y Adaptación en los Bosques y la Biodiversidad de España frente al Cambio Climático

Asier Herrero; Miguel A. Zavala

El Cambio Climático, y sus efectos en los sistemas humanos y naturales, se perfilan como uno de los mayores desafíos para la sociedad durante el siglo XXI. En el ámbito de los bosques y la biodiversidad, se acumulan las evidencias de impactos asociados al cambio climático como alteraciones fenológicas o procesos de decaimiento forestal, peligrando así los servicios ecosistémicos que proporcionan estos ecosistemas. En este contexto acaba de publicarse el informe “Los Bosques y la Biodiversidad frente al Cambio Climático: Impactos, Vulnerabilidad y Adaptación en España” (Herrero y Zavala 2015), financiado por la Fundación Biodiversidad y la Universidad de Alcalá y coordinado por la Oficina Española de Cambio Climático, que aborda los principales retos y medidas de acción que deben tenerse en cuenta para preservar nuestro patrimonio natural. El informe, en el que han participado más de 140 autores procedentes de distintas universidades, centros de investigación y administraciones, consta de 57 capítulos, 36 sobre impactos y vulnerabilidad y 21 sobre medidas de adaptación, y supone una revisión sobre el funcionamiento de los ecosistemas frente al cambio climático, retos y posibles medidas de actuación. El informe incluye un documento de síntesis que integra este conocimiento para llevar a cabo un diagnóstico de la situación actual y desarrollar propuestas de actuación. En un primer bloque, el informe describe los principales impactos y vulnerabilidades detectadas en los ecosistemas terrestres de España, proponiendo medidas de adaptación asociadas a problemáticas específicas. A pesar de que no supone una revisión exhaustiva, el informe recoge aquellos casos fundamentados en evidencias científicas. El documento analiza la vulnerabilidad en los distintos niveles de organización biológica (organismo, población, comunidad y ecosistema), además de examinar los diferentes procesos y mecanismos que pueden conferir un alto grado de resistencia y resiliencia a organismos y ecosistemas frente al cambio climático. El segundo bloque se centra en la adaptación, entendida como la intervención humana que busca facilitar el ajuste de los sistemas naturales y humanos al cambio climático. Se trata el contexto legal, los instrumentos para la adaptación y los costes derivados de la adaptación y su financiación. Posteriormente, se identifican los actores principales y los diferentes ámbitos de actuación, destacando la necesidad de coordinación entre los mismos para desarrollar políticas eficaces. Por último, se detallan los principales proyectos de adaptación que se han desarrollado de manera exitosa en nuestro país y que se caracterizan, en su mayoría, por una estrecha colaboración entre gestores, científicos y otros agentes implicados.


Ecosistemas | 2013

Vulnerabilidad de los bosques españoles frente al CambioClimático: evaluación mediante modelos

Paloma Ruiz-Benito; Asier Herrero; Miguel A. Zavala

Resumen es: Los bosques son ecosistemas fundamentales en la generacion de servicios ecosistemicos y, por tanto, para el bienestar humano. El cambio global (incluyend...Esta revision ha sido financiada por el proyecto REMEDINAL-2 de la Comunidad de Madrid (S2009/AMB-1783) y el proyecto IN-2013-004 de The Leverhulme Trust.


Revista Ecosistemas | 2014

Vulnerabilidad de los bosques Ib??ricos frente al Cambio Clim??tico: evaluaci??n mediante modelos

Paloma Ruiz-Benito; Asier Herrero; Miguel ngel Zavala

Blanco, J.A. 2013. Modelos ecol??gicos: descripci??n, explicaci??n y predicci??n. Ecosistemas 22(3):1-5. Doi.: 10.7818/ECOS.2013.22-3.01.Caro-Moreno, D., Jimenez-Cantizano, F.A. 2013. Study of the concentration of toxic trace elements of sludge deposits, soils and plants in Mina La Solana, Almeria (Spain). Ecosistemas 22(3):101-110. Doi.: 10.7818/ECOS.2013.22-3.14. This work presents a study of the concentration of toxic trace elements in abandoned sludge deposits (tailings) by mining in Almeria (Spain), soils and plants that colonize and represent a way to incorporate those elements in the food chain. The old mining industry left a number of abandoned facilities in different parts of Andalusia, with tailings standing out. They were generated in the flotation process, and usually deposited and left on streambeds. Tailings composition vary depending on the type of ore and treatment additives, but usually the contents of heavy metals are high, because recovery was not very good in the mineral processing technique used in the early 20th century facilities. In this study we analyze the case of Mina La Solana tailings, located in Almocita (Almeria, SE Spain). We carried out a geochemical characterization of trace element content. Furthermore, we also studied the geochemical trace element content in plants that were rooted in the tailings. The results show that tailings have high Pb content (average concentration 6800 ppm) and Zn (average concentration 22 000 ppm). These elements are not mobile soluble fractions; leaching tests give very low concentration levels (≤ 10 ppm Pb and ≤ 2 ppm Zn) in water. We found high concentrations of the same elements in plants, with a value of up to 210 ppm Pb and 1300 ppm Zn. This demonstrates the ability of plants to alter the mobility of the elements present in the substrate where they are rooted and thus providing a transfer to the food chain through feeding species.


Revista Ecosistemas | 2014

Vulnerabilidad de los bosques Ibéricos frente al Cambio Climático: evaluación mediante modelos

Paloma Ruiz-Benito; Asier Herrero; Miguel A. Zavala

Blanco, J.A. 2013. Modelos ecol??gicos: descripci??n, explicaci??n y predicci??n. Ecosistemas 22(3):1-5. Doi.: 10.7818/ECOS.2013.22-3.01.Caro-Moreno, D., Jimenez-Cantizano, F.A. 2013. Study of the concentration of toxic trace elements of sludge deposits, soils and plants in Mina La Solana, Almeria (Spain). Ecosistemas 22(3):101-110. Doi.: 10.7818/ECOS.2013.22-3.14. This work presents a study of the concentration of toxic trace elements in abandoned sludge deposits (tailings) by mining in Almeria (Spain), soils and plants that colonize and represent a way to incorporate those elements in the food chain. The old mining industry left a number of abandoned facilities in different parts of Andalusia, with tailings standing out. They were generated in the flotation process, and usually deposited and left on streambeds. Tailings composition vary depending on the type of ore and treatment additives, but usually the contents of heavy metals are high, because recovery was not very good in the mineral processing technique used in the early 20th century facilities. In this study we analyze the case of Mina La Solana tailings, located in Almocita (Almeria, SE Spain). We carried out a geochemical characterization of trace element content. Furthermore, we also studied the geochemical trace element content in plants that were rooted in the tailings. The results show that tailings have high Pb content (average concentration 6800 ppm) and Zn (average concentration 22 000 ppm). These elements are not mobile soluble fractions; leaching tests give very low concentration levels (≤ 10 ppm Pb and ≤ 2 ppm Zn) in water. We found high concentrations of the same elements in plants, with a value of up to 210 ppm Pb and 1300 ppm Zn. This demonstrates the ability of plants to alter the mobility of the elements present in the substrate where they are rooted and thus providing a transfer to the food chain through feeding species.


Ecosistemas | 2013

Vulnerability of Spanish forests under climatic change: evaluation through models

Paloma Ruiz-Benito; Asier Herrero; Miguel A. Zavala

Resumen es: Los bosques son ecosistemas fundamentales en la generacion de servicios ecosistemicos y, por tanto, para el bienestar humano. El cambio global (incluyend...Esta revision ha sido financiada por el proyecto REMEDINAL-2 de la Comunidad de Madrid (S2009/AMB-1783) y el proyecto IN-2013-004 de The Leverhulme Trust.


Forest Ecology and Management | 2017

Resilience to drought in a dry forest: Insights from demographic rates

Jaime Madrigal-González; Asier Herrero; Paloma Ruiz-Benito; Miguel A. Zavala


Perspectives in Plant Ecology Evolution and Systematics | 2017

Uneven abundances determine nestedness in climbing plant-host interaction networks

Joaquín Calatayud; Jaime Madrigal-González; Ernesto Gianoli; Joaquín Hortal; Asier Herrero


Forest Science | 2016

Local-scale drought adaptation of ponderosa pine seedlings at habitat ecotones

Thomas E. Kolb; Kevin C. Grady; Matthew P. McEttrick; Asier Herrero

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Paloma Ruiz-Benito

Center for International Forestry Research

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Paloma Ruiz-Benito

Center for International Forestry Research

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C. Belda

Hospital Universitario La Paz

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Castora Gómez

University of Santiago de Compostela

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E. Casado

Autonomous University of Madrid

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J. De Castro

Hospital Universitario La Paz

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