Unifying microorganisms and macrograzers in rocky shore ecological networks

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dc.catalogadoraba
dc.contributor.authorArboleda Baena, Clara María
dc.contributor.authorPareja Salazar, Claudia Belén
dc.contributor.authorPoblete, Javiera
dc.contributor.authorBerlow, Eric
dc.contributor.authorSarmento, Hugo
dc.contributor.authorLogares, Ramiro
dc.contributor.authorIglesia Cabezas, Rodrigo Alonso de la
dc.contributor.authorNavarrete C., Sergio
dc.date.accessioned2023-10-20T21:15:25Z
dc.date.available2023-10-20T21:15:25Z
dc.date.issued2023
dc.description.abstractOver the past decades, our understanding of the vital role microbes play in ecosystem processes has greatly expanded. However, we still have limited knowledge about how microbial communities interact with larger organisms. Many existing representations of microbial interactions are based on co-occurrence patterns, which do not provide clear insights into trophic or non-trophic relationships. In this study, we untangled trophic and non-trophic interactions between macroscopic and microscopic organisms on a marine rocky shore. Five abundant mollusk grazers were selected, and their consumptive (grazing) and non-consumptive (grazer pedal mucus) interactions with bacteria in biofilms were measured using 16S rRNA amplicon sequencing. While no significant effects on a commonly used measure of biofilm grazing (Chlorophyll-a concentration) were observed, detailed image analysis revealed that all grazers had a detrimental impact on biofilm cover. Moreover, different grazers exhibited distinct effects on various bacterial groups. Some groups, such as Rhodobacteraceae, Saprospiraceae, Flavobacteriaceae, and Halieaceae, experienced positive effects from specific grazers, while others, like Rhizobiaceae, Rhodobacteraceae, and Flavobacteriaceae were negatively affected by certain grazers. This study presents the first attempt to construct an interaction network between macroorganisms and bacteria. It demonstrates that the strength of trophic and non-trophic interactions varies significantly depending on the mollusk grazer or bacterial group involved. Notably, certain bacterial groups exhibited a generalized response, while others showed specialized responses to specific macroorganisms in trophic or non-trophic interactions. Overall, this work highlights the potential for integrating microbes into ecological networks, providing valuable insights and methodologies for quantifying interactions across Domains. This research complements the previous ecological network, showing that mollusk grazers interact not only trophically but also non-trophically with epilithic biofilms. It identifies three drivers affecting microbial community assembly, crucial for understanding macro-microorganism dynamics in intertidal systems.
dc.fechaingreso.objetodigital2023-10-20
dc.fuente.origenORCID
dc.identifier.doi10.1101/2023.10.06.561312
dc.identifier.urihttps://doi.org/10.1101/2023.10.06.561312
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/75150
dc.information.autorucFacultad de Ciencias Biológicas; Arboleda Baena, Clara María; 0000-0002-5185-8790; 1031194
dc.information.autorucFacultad de Ciencias Biológicas; Pareja Salazar, Claudia Belén; S/I; 215485
dc.information.autorucFacultad de Ciencias Biológicas; Iglesia Cabezas, Rodrigo Alonso de la; 0000-0002-2000-8697; 13915
dc.information.autorucFacultad de Ciencias Biológicas; Navarrete C., Sergio; 0000-0003-4021-3863; 100292
dc.language.isoen
dc.nota.accesoContenido completo
dc.rightsacceso abierto
dc.subjectTrophic and Non-trophic interaction
dc.subjectInteraction strength
dc.subjectGrazers
dc.subjectBacteria
dc.subject51 intertidal
dc.subjectEpilithic biofilms (periphyton)
dc.subject.ddc570
dc.subject.deweyBiologíaes_ES
dc.titleUnifying microorganisms and macrograzers in rocky shore ecological networks
dc.typepreprint
sipa.codpersvinculados1031194
sipa.codpersvinculados215485
sipa.codpersvinculados13915
sipa.codpersvinculados100292
sipa.trazabilidadORCID;2023-10-16
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