Responses of plant-arthropod communities to nutrient enrichment in hyper-arid and semi-arid zones

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dc.contributor.authorCoccia, Cristina
dc.contributor.authorFarina, Jose Miguel
dc.date.accessioned2025-01-20T21:05:46Z
dc.date.available2025-01-20T21:05:46Z
dc.date.issued2022
dc.description.abstractExcessive nutrient loading in coastal wetlands is threatening biodiversity and altering ecosystem functioning worldwide. Nonetheless, fertilization studies have focused mainly on temperate, continental and humid climates, while little is known about the effects of nutrient enrichment in more arid environments.This study examines the responses of salt marsh plants and two dominant arthropod communities (Isopoda and Coleoptera) to short-term nutrient addition in hyper-arid (HA) and semi-arid (SA) zones of Chile. We experi-mentally increased nitrogen (N) and phosphorous (P) to examine how enrichment alters primary producers and consumer taxonomic and non-taxonomic (size-based) structure. Both N and P increased plant biomass in the HA, while in the SA, N addition increased biomass but P addition had no significant effects. N and P addition affected arthropod community and size structure differentially in HA and SA. N addition changed Coleoptera composition in HA, while P addition had large contrasting effect sizes on Isopoda and Coloeptera size evenness. In SA, N addition had large and negative effect sizes on Isopoda size evenness and Coleoptera mean body size, while P addition had large, positive effect sizes on total arthropod abundance and changed the composition of both Coleoptera and Isopoda. Although nutrient additions did not significantly affect arthropod productivity, struc-tural equation models suggested that increases in vegetation biomass with fertilization in HA could mediate positively the effects of fertilization on arthropod biomass, but not in SA where Coleoptera body size reduced. In conclusion, this study revealed that over a short time frame the effects of nutrient additions flow through the food webs more disproportionately in SA than in HA.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.ecss.2022.107884
dc.identifier.eissn1096-0015
dc.identifier.issn0272-7714
dc.identifier.urihttps://doi.org/10.1016/j.ecss.2022.107884
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93320
dc.identifier.wosidWOS:000807368600003
dc.language.isoen
dc.revistaEstuarine coastal and shelf science
dc.rightsacceso restringido
dc.subjectArid
dc.subjectSalt marshes
dc.subjectArthropods
dc.subjectFertilization
dc.subjectStructural equation modelling
dc.subjectVegetation
dc.subject.ods14 Life Below Water
dc.subject.ods13 Climate Action
dc.subject.odspa14 Vida submarina
dc.subject.odspa13 Acción por el clima
dc.titleResponses of plant-arthropod communities to nutrient enrichment in hyper-arid and semi-arid zones
dc.typeartículo
dc.volumen272
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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