دورية أكاديمية
Modelling critical factors affecting the distribution of the vulnerable endemic Eastern Iberian barbel (Luciobarbus guiraonis) in Mediterranean rivers
| العنوان: | Modelling critical factors affecting the distribution of the vulnerable endemic Eastern Iberian barbel (Luciobarbus guiraonis) in Mediterranean rivers |
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| المؤلفون: | Olaya Marín, Esther Julia, Martinez-Capel, Francisco, García Bartual, Rafael Luis, Vezza, Paolo |
| المساهمون: | Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres, Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient, Universitat Politècnica de València. Instituto Universitario de Ingeniería del Agua y del Medio Ambiente - Institut Universitari d'Enginyeria de l'Aigua i Medi Ambient, European Commission, Ministerio de Economía y Competitividad, Miinisterio de Ciencia e Innovación, Ministerio de Educación y Ciencia, European Regional Development Fund |
| بيانات النشر: | Hellenic Centre for Marine Research |
| سنة النشر: | 2016 |
| المجموعة: | Universitat Politécnica de Valencia: RiuNet / Politechnical University of Valencia |
| مصطلحات موضوعية: | Eastern Iberian Barbel, Luciobarbus, Hydromorphology, Species distribution model, Mediterranean rivers, Fish habitat, Artificial Neural Networks, INGENIERIA HIDRAULICA, TECNOLOGIA DEL MEDIO AMBIENTE |
| الوصف: | [EN] Luciobarbus guiraonis (Eastern Iberian barbel) is an endemic fish species restricted to Spain, mainly distributed in the Júcar River Basin District. Its study is important because there is little knowledge about its biology and ecology. To improve the knowledge about the species distribution and habitat requirements, nonlinear modelling was carried out to predict the presence/absence and density of the Eastern Iberian barbel, based on 155 sampling sites distributed throughout the Júcar River Basin District (Eastern Iberian Peninsula). We used multilayer feed-forward artificial neural networks (ANN) to represent nonlinear relationships between L. guiraonis descriptors and variables regarding the physical habitat and biological components (macroinvertebrates, fish, riparian forest). The gradient descent algorithm was implemented to find the optimal model parameters; the importance of the ANN s input variables was determined by the partial derivatives method. The predictive power of the model was evaluated with the Cohen s kappa (k), the correctly classified instances (CCI), and the area under the curve (AUC) of the receiver operator characteristic (ROC) plots. The best model predicted presence/absence with a high performance (k= 0.66, CCI= 87% and AUC= 0.85); the prediction of density was moderate (CCI = 62%, AUC=0.71 and k= 0.43). The fundamental variables describing the presence/absence were; solar radiation (the highest contribution was observed between 2000 and 4200 WH/m2), drainage area (with the strongest influence between 3000 and 5.000 km2), and the proportion of exotic fish species (with relevant contribution between 50 and 100%). In the density model, the most important variables were the coefficient of variation of mean annual flows (relative importance of 50.5%) and the proportion of exotic fish species (24.4%). The models provide important information about the relation of L. guiraonis with biotic and abiotic variables, this new knowledge can help develop future studies and management plans for ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1108-393X |
| العلاقة: | Mediterranean Marine Science; info:eu-repo/grantAgreement/EC/FP7/275577/EU/Environmental River Management: An Innovative Holistic Approach for Mediterranean Streams/; info:eu-repo/grantAgreement/MICINN//CSD2009-00065/ES/Evaluación y predicción de los efectos del cambio global en la cantidad y la calidad del agua en ríos ibéricos/; info:eu-repo/grantAgreement/MINECO//CGL2013-48424-C2-1-R/ES/ADAPTACION AL CAMBIO GLOBAL EN SISTEMAS DE RECURSOS HIDRICOS/; info:eu-repo/grantAgreement/MEC//CGL2007-66412/ES/EVALUACION DEL POTENCIAL ECOLOGICO DE RIOS REGULADOS POR EMBALSES Y DESARROLLO DE CRITERIOS PARA SU MEJORA SEGUN LA DIRECTIVA MARCO DEL AGUA./; http://dx.doi.org/10.12681/mms.1351Test; urn:issn:1108-393X; http://hdl.handle.net/10251/64952Test |
| DOI: | 10.12681/mms.1351 |
| الإتاحة: | https://doi.org/10.12681/mms.1351Test http://hdl.handle.net/10251/64952Test |
| حقوق: | http://creativecommons.org/licenses/by-nc-sa/4.0Test/ ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.A2196994 |
| قاعدة البيانات: | BASE |
| تدمد: | 1108393X |
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| DOI: | 10.12681/mms.1351 |