EFFECT OF DRYING ON EXTREME SALINE WATER SYSTEMS: TROFICAS NETWORKS AND PROCESSES IN THE ECOSYSTEM (Q3140665): Difference between revisions
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EFFET DU SÉCHAGE SUR LES SYSTÈMES D’EAU SALINE EXTRÊME: RÉSEAUX ET PROCESSUS TROFICAS DANS L’ÉCOSYSTÈME | |||
Revision as of 11:57, 2 December 2021
Project Q3140665 in Spain
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | EFFECT OF DRYING ON EXTREME SALINE WATER SYSTEMS: TROFICAS NETWORKS AND PROCESSES IN THE ECOSYSTEM |
Project Q3140665 in Spain |
Statements
116,160.0 Euro
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145,200.0 Euro
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80.0 percent
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1 January 2019
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31 December 2021
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UNIVERSIDAD DE MURCIA
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37°59'32.57"N, 1°7'49.94"W
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30030
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LAS REGIONES ARIDAS Y SEMI-ARIDAS DE LA PENINSULA IBERICA ALBERGAN EL MAYOR NUMERO EN EUROPA DE CUERPOS DE AGUA INTERMITENTES SALINOS. LOS CAMBIOS GEOQUIMICOS QUE OCURREN EN LOS ECOSISTEMAS SALINOS DURANTE SU DESECACION, MUCHO MAS DRASTICOS QUE LOS QUE SE DAN EN AGUAS DULCES, CONFIGURAN LAS COMUNIDADES BENTONICAS Y LOS PROCESOS ECOLOGICOS EN SUS ESTADOS ACUATICO Y TERRESTRE. AUNQUE EL CAMBIO CLIMATICO PREDICE INCREMENTOS EN LA SALINIDAD DEL AGUA E INTERMITENCIA, TODAVIA SE CONOCE MUY POCO SOBRE EL EFECTO COMBINADO DE AMBOS FACTORES QUE SE SUPERPONEN EN LOS SISTEMAS NATURALES SALINOS INTERMITENTES. AUNQUE ALTAMENTE SENSIBLES A LAS PRESIONES ANTROPICAS, ESTOS ECOSISTEMAS SON PARTICULARMENTE VALIOSOS DEBIDO A SU BIOTA HALOTOLERANTE/HALOFITA Y A SU ELEVADO NUMERO DE ESPECIES RARAS Y ENDEMICAS. EL OBJETIVO GENERAL DEL PROYECTO COORDINADO ¿DRYHARSHSAL¿ ES ANALIZAR EL EFECTO DE LA DESECACION SOBRE LOS MICROORGANISMOS DEL BIOFILM, INVERTEBRADOS (ACUATICOS Y TERRESTRES) Y PROCESOS ECOLOGICOS ESENCIALES, QUE INTERACTUAN CON CONDICIONES BIOGEOQUIMICAS Y PROCESOS EN ECOSISTEMAS ACUATICOS CONTINENTALES SALINOS INTERMITENTES. COMPLEMENTARIAMENTE, SE INVESTIGARA EL PAPEL DE BIOFILM HALOFITO COMO FUENTE DE ENZIMAS Y METABOLITOS DE INTERES PARA LA INDUSTRIA VERDE. LOS OBJETIVOS ESPECIFICOS DEL PRESENTE SUBPROYECTO SON: I) DETERMINAR CAMBIOS EN LAS COMUNIDADES DE INVERTEBRADOS ACUATICOS Y TERRESTRES DURANTE LA DESECACION; II) INVESTIGAR LOS CAMBIOS EN LAS REDES TROFICAS ACUATICAS Y TERRESTRES, CON ESPECIAL ATENCION AL BIOFILM; III) ANALIZAR LOS CAMBIOS EN EL METABOLISMO Y EL PROCESADO DE MATERIA ORGANICA; E IV) INTEGRAR LAS ADAPTACIONES FUNCIONALES Y ESTRUCTURALES DE LAS COMUNIDADES BENTONICAS A LA SALINIDAD Y DESECACION. EN BASE A LOS PROFUNDOS CAMBIOS BIOGEOQUIMICOS Y EN EL BIOFILM ESPERADOS, HIPOTETIZAMOS QUE: I) LAS COMUNIDADES DE INVERTEBRADOS SERAN AFECTADAS SIGNIFICATIVAMENTE Y POR TANTO, LAS CARACTERISTICAS TOPOLOGICAS Y EL ENSAMBLAJE TROFICO VARIARA A LO LARGO DE LA DESECACION, II) LOS INVERTEBRADOS TERRESTRES TENDRAN UN PAPEL IMPORTANTE COMO CONSUMIDORES DE LOS RECURSOS DE LOS LECHOS SECOS, SIENDO AFECTADO EL CONSUMO POR LOS CAMBIOS EN LA CALIDAD DEL RECURSO. COMO RESPUESTA A LOS CAMBIOS EN LAS COMUNIDADES BIOLOGICAS Y LA BIOGEOQUIMICA, ESPECIALMENTE AL CAMBIO ACUSADOS EN LA DISPONIBILIDAD DE OXIGENO, HIPOTETIZAMOS, III) QUE LA PRODUCCION PRIMARIA NETA Y LA RESPIRACION VARIARAN DRASTICAMENTE CON LA DESECACION. FINALMENTE, HIPOTETIZAMOS QUE CONFORME ESTA PROGRESA Y LAS COMUNIDADES DE MACRO Y MICRO HETEROTROFOS CAMBIAN, IV) LA MATERIA ORGANICA ALOCTONA PODRIA GANAR EN IMPORTANCIA COMO FUENTE DE ENERGIA, Y V) LA IMPORTANCIA RELATIVA DE LOS FACTORES IMPLICADOS EN SU DESCOMPOSICION (BIOTICOS Y ABIOTICOS) CAMBIARA. PARA TESTAR NUESTRAS HIPOTESIS, SE REALIZARAN OBSERVACIONES Y EXPERIMENTOS DE CAMPO EN LAGUNAS SOMERAS Y RIOS SALINOS INTERMITENTES NATURALES EN SUS FASES HUMEDA Y SECA, Y EXPERIMENTOS DE LABORATORIO. LA INTEGRACION DE LOS RESULTADOS DE LOS SUBPROYECTOS 1 Y 2, PERMITIRAN EL DESARROLLO DE UN MODELO CONCEPTUAL COMPLETO SOBRE LAS CARACTERISTICAS FUNCIONALES DE ESTE TIPO DE ECOSISTEMAS. DADA NUESTRA EXPERIENCIA IN SISTEMAS ACUATICOS DULCES PODREMOS DISCERNIR LA RELEVANCIA DEL ESTRES HIDRICO DE LA SALINIDAD EN SISTEMAS ACUATICOS. NUESTROS RESULTADOS CONTRIBUIRAN A PONER EN VALOR LA ESTRUCTURA Y FUNCION DE ESTOS INFRAVALORADOS ECOSISTEMAS Y A AVANZAR EN EL ENTENDIMIENTO DEL EFECTO DEL CAMBIO CLIMATICO SOBRE LOS ECOSISTEMAS DE AGUA DULCE. (Spanish)
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ARID AND SEMI-ARID REGIONS OF THE IBERIAN PENINSULA HARBOR THE LARGEST NUMBER IN EUROPE OF INTERMITTENT SALINE INLAND WATER BODIES. GEOCHEMICAL CHANGES OCCURRING IN THESE SALINE ECOSYSTEMS ALONG DRYING, WHICH ARE MUCH MORE DRASTIC THAN THOSE OBSERVED IN FRESHWATERS TYPES, SHAPE BENTHIC COMMUNITIES AND ECOSYSTEMS PROCESSES ACROSS BOTH AQUATIC AND TERRESTRIAL STATES. ALTHOUGH GLOBAL CHANGE PREDICTS INCREASED WATER SALINITY AND INTERMITTENCY, LITTLE IS STILL KNOWN ABOUT THE COMBINED EFFECTS OF THESE TWO NATURAL STRESSORS WHICH ARE OVERLAPPING IN NATURAL SALINE INTERMITTENT AQUATIC ECOSYSTEMS. ALTHOUGH HIGHLY SENSITIVE TO HUMAN PRESSURES, THESE ECOSYSTEMS ARE PARTICULARLY VALUABLE DUE TO THEIR HALOTOLERANT/HALOPHILIC BIOTA AND HIGH NUMBER OF RARE AND ENDEMIC SPECIES. THE GENERAL OBJECTIVE OF THE COORDINATED PROJECT ¿DRYHARSHSAL¿ IS TO ANALYSE THE EFFECT OF DRYING ON MICROBIAL BIOFILMS, BENTHIC (AQUATIC AND TERRESTRIAL) INVERTEBRATES AND ESSENTIAL ECOSYSTEM PROCESSES INTERACTING WITH BIOGEOCHEMICAL CONDITIONS AND PROCESSES IN INLAND SALINE AQUATIC ECOSYSTEMS. SUPPLEMENTARY, THE ROLE OF HALOPHILIC BIOFILM AS SOURCE OF ENZYMES AND METABOLITES OF INTEREST FOR GREEN-BIO INDUSTRY WILL BE INVESTIGATED. IN THIS FRAME, THE SPECIFIC OBJECTIVES OF THE CURRENT SUBPROJECT ARE: I) TO DETERMINE SHIFTS IN THE STRUCTURE, COMPOSITION AND FUNCTION OF BOTH AQUATIC AND TERRESTRIAL INVERTEBRATE COMMUNITIES ALONG DRYING; II) TO INVESTIGATE CHANGES IN AQUATIC AND TERRESTRIAL FOOD WEBS WITH ATTENTION TO THE IMPORTANCE OF BIOFILM AS RESOURCE; III) TO ANALYZE CHANGES IN ECOSYSTEM METABOLISM AND ORGANIC MATTER PROCESSING; AND FINALLY IV) TO INTEGRATE FUNCTIONAL AND STRUCTURAL ADAPTATIONS AND THRESHOLDS OF BENTHIC COMMUNITIES TO SALINITY AND DRYING. ON THE BASIS OF THE PROFOUND EXPECTED CHANGES IN PHYSICOCHEMICAL CONDITIONS AND IN BIOFILM ALONG DRYING, WE HYPOTHESIZE THAT: I) INVERTEBRATE COMMUNITIES WILL BE SIGNIFICANTLY AFFECTED, AND IN TURN, TOPOLOGICAL FEATURES AND FOOD WEBS ASSEMBLED, II) TERRESTRIAL INVERTEBRATES WILL HAVE A MAIN ROLE AS CONSUMERS OF ORGANIC MATTER RESOURCES (MAINLY BIOFILM) EXPOSED IN DRY BEDS, WITH CONSUMPTION AFFECTED BY CHANGES IN THE QUALITY OF RESOURCES. WE ALSO HYPOTHESIZE THAT AS A RESPONSE TO CHANGES IN BIOTIC COMMUNITIES AND BIOGEOCHEMISTRY, ESPECIALLY TO THE ACUTE CHANGES IN WATER OXYGEN AVAILABILITY, III) GROSS PRIMARY PRODUCTION AND COMMUNITY RESPIRATION WILL DRASTICALLY VARY ALONG DRYING. FINALLY WE HYPOTHESIZE THAT AS DRYING PROGRESS AND MACRO AND MICRO HETEROTROPHIC COMMUNITIES CHANGE, IV) ALLOCTHONOUS ORGANIC MATTER COULD GAIN IN IMPORTANCE AS ENERGY SOURCE AND V) THE RELATIVE IMPORTANCE OF FACTORS IMPLICATED IN ITS DECOMPOSITION (BIOTIC AND ABIOTIC) WILL VARY. TO TEST OUR HYPOTHESIS FIELD OBSERVATIONS AND EXPERIMENTS WILL BE PERFORMED IN NATURALLY SALINE INTERMITTENT SHALLOW LAKES AND STREAMS DURING WET AND DRY CYCLES, ALONG WITH LABORATORY EXPERIMENTS. THE INTEGRATION OF THESE RESULTS WITH THOSE FROM SUBPROJECT 1, WILL ALLOW THE DEVELOPMENT OF A COMPLETE CONCEPTUAL MODEL ON THE FUNCTIONAL FEATURES OF THESE ECOSYSTEMS AND TOGETHER TO OUR BACKGROUND ON FRESHWATER SYSTEMS. OUR BACKGROUND ON FRESHWATER SYSTEMS WILL ALLOW US TO DISCERN THE RELEVANCE OF WATER STRESS FROM SALINITY IN AQUATIC ECOSYSTEMS. FINALLY, OUR RESULTS WILL CONTRIBUTE TO HIGHLIGHT THE SINGULAR STRUCTURE AND FUNCTION OF THESE UNDERVALUED ECOSYSTEMS AND TO ADVANCE IN THE UNDERSTANDING OF THE EFFECT OF CLIMATE CHANGE ON FRESHWATER ECOSYSTEMS. (English)
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Murcia
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Identifiers
RTI2018-097950-B-C22
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