{"id":1482,"date":"2025-09-19T14:15:17","date_gmt":"2025-09-19T14:15:17","guid":{"rendered":"https:\/\/wp.ull.es\/omacc\/?post_type=project&p=1482"},"modified":"2025-12-12T09:17:39","modified_gmt":"2025-12-12T09:17:39","slug":"the-intermediate-disturbance-hypothesis-in-an-acidified-system","status":"publish","type":"project","link":"https:\/\/wp.ull.es\/omacc\/project\/the-intermediate-disturbance-hypothesis-in-an-acidified-system\/","title":{"rendered":"The intermediate disturbance hypothesis in an acidified system. Gonz\u00e1lez-Delgado et al., 2025"},"content":{"rendered":"[et_pb_section fb_built=\u00bb1″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_row _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_column type=\u00bb4_4″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_text _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb header_2_font=\u00bb|700|||||||\u00bb]\n

Molecular evidence for the intermediate disturbance hypothesis in an acidified marine system<\/h2>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00bb2_5,3_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_column type=\u00bb2_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_image src=\u00bbhttps:\/\/wp.ull.es\/omacc\/wp-content\/uploads\/sites\/110\/2025\/09\/2025-Gonzalez-Delgado-et-al.Hydro_.jpg\u00bb title_text=\u00bb2025-Gonza\u0301lez-Delgado et al.,Hydro\u00bb _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb border_width_all=\u00bb2px\u00bb border_color_all=\u00bb#0C997F\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00bb3_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_text _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb]\n
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2025. Gonz\u00e1lez-Delgado, S., P\u00e9rez-Portela, R., & Hern\u00e1ndez, J. C. Molecular evidence for the intermediate disturbance hypothesis in an acidified marine system. Hydrobiologia, 1-12.<\/p>\n<\/blockquote>\n[\/et_pb_text][et_pb_text _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb]\n

La Hip\u00f3tesis de la Perturbaci\u00f3n Intermedia (HPI), postulada por Connell (1978), sugiere que los ecosistemas presentan una mayor diversidad de especies cuando las perturbaciones ocurren a escalas intermedias. En este estudio se investig\u00f3 la aplicabilidad de la HPI a escalas intraespec\u00edficas (nivel individual) utilizando datos moleculares. Como marco experimental de perturbaci\u00f3n se muestre\u00f3 un sistema naturalmente acidificado situado en la isla de La Palma, Islas Canarias (Espa\u00f1a), caracterizado por un marcado gradiente de pH fluctuante. Se obtuvieron datos moleculares a partir de secuencias de un fragmento del gen mitocondrial de la subunidad I de la Citocromo C Oxidasa en dos especies de erizos de mar (Arbacia lixula y Paracentrotus lividus) para explorar la diversidad gen\u00e9tica a nivel individual. Estos datos se compararon con resultados previos de metabarcoding sobre diversidad taxon\u00f3mica bent\u00f3nica a nivel comunitario. Ambas especies de erizos de mar mostraron los niveles m\u00e1s altos de diversidad haplot\u00edpica y nucleot\u00eddica en la zona de fluctuaci\u00f3n intermedia de pH, reflejando los datos de metabarcoding que revelaron los niveles m\u00e1s altos de diversidad taxon\u00f3mica en esa misma zona. Los resultados respaldan la validez de la HPI en ecosistemas marinos afectados por fuertes fluctuaciones de pH y a diferentes niveles de organizaci\u00f3n biol\u00f3gica (desde organismos hasta comunidades).<\/p>\n[\/et_pb_text][et_pb_button button_url=\u00bbhttps:\/\/drive.google.com\/file\/d\/1x4c2KSiyss2T0BJoIuS6_SqTmIHn2qh1\/view?usp=sharing\u00bb url_new_window=\u00bbon\u00bb button_text=\u00bbDescargar pdf\u00bb _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb custom_button=\u00bbon\u00bb button_text_size=\u00bb13px\u00bb button_bg_color=\u00bb#0C997F\u00bb][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00bb2_5,3_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_column type=\u00bb2_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][\/et_pb_column][et_pb_column type=\u00bb3_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_toggle title=\u00bbEnglish\u00bb open_toggle_text_color=\u00bb#0C997F\u00bb open_toggle_background_color=\u00bb#FFFFFF\u00bb closed_toggle_text_color=\u00bb#0C997F\u00bb closed_toggle_background_color=\u00bb#FFFFFF\u00bb icon_color=\u00bb#0C997F\u00bb _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb title_font=\u00bb|||on|||||\u00bb closed_title_font=\u00bb|||on|||||\u00bb closed_title_font_size=\u00bb14px\u00bb closed_title_line_height=\u00bb1.5em\u00bb custom_padding=\u00bb7px||7px||true|false\u00bb border_color_all=\u00bb#0C997F\u00bb]\n

The Intermediate Disturbance Hypothesis (IDH), postulated by Connell (1978), suggests that ecosystems exhibit higher species diversity when disturbances occur at intermediate scales. In this study, the applicability of the IDH at the intraspecific scales (organismal) was investigated using molecular data. As an experimental perturbation framework, a naturally acidified system located in La Palma Island, Canary Island (Spain) with a sharp fluctuating pH gradient was sampled. Molecular data were obtained from sequences of a fragment of the mitochondrial Cytochrome C Oxidase subunit I gene in two sea urchin species (Arbacia lixula and Paracentrotus lividus) to explore genetic diversity at the organism level. These data were compared with previous metabarcoding results of taxonomic benthic diversity at the community level. Both sea urchin species showed the highest levels of haplotype and nucleotide diversity at the intermediate pH fluctuation zone, mirroring metabarcoding data that revealed the highest levels of taxonomic diversity at the same zone. The results support the validity of the IDH in marine ecosystems affected by strong pH fluctuations and across different levels of biological organization (from organisms to communities).<\/p>\n[\/et_pb_toggle][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n","protected":false},"excerpt":{"rendered":"

[et_pb_section fb_built=\u00bb1″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_row _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_column type=\u00bb4_4″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_text _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb header_2_font=\u00bb|700|||||||\u00bb] Molecular evidence for the intermediate disturbance hypothesis in an acidified marine system [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00bb2_5,3_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_column type=\u00bb2_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_image src=\u00bbhttps:\/\/wp.ull.es\/omacc\/wp-content\/uploads\/sites\/110\/2025\/09\/2025-Gonzalez-Delgado-et-al.Hydro_.jpg\u00bb title_text=\u00bb2025-Gonza\u0301lez-Delgado et al.,Hydro\u00bb _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb border_width_all=\u00bb2px\u00bb border_color_all=\u00bb#0C997F\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00bb3_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_text _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb] 2025. Gonz\u00e1lez-Delgado, S., P\u00e9rez-Portela, R., & Hern\u00e1ndez, J. C. Molecular evidence […]<\/p>\n","protected":false},"author":268,"featured_media":1485,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","ngg_post_thumbnail":0,"footnotes":""},"project_category":[10],"project_tag":[],"class_list":["post-1482","project","type-project","status-publish","has-post-thumbnail","hentry","project_category-recientes"],"_links":{"self":[{"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/project\/1482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/project"}],"about":[{"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/types\/project"}],"author":[{"embeddable":true,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/users\/268"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/comments?post=1482"}],"version-history":[{"count":2,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/project\/1482\/revisions"}],"predecessor-version":[{"id":1507,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/project\/1482\/revisions\/1507"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/media\/1485"}],"wp:attachment":[{"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/media?parent=1482"}],"wp:term":[{"taxonomy":"project_category","embeddable":true,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/project_category?post=1482"},{"taxonomy":"project_tag","embeddable":true,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/project_tag?post=1482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}