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Article: Nitrogen enrichment changed the biogeochemical role of sesarmid crabs by shifting their diets in tropical mangrove ecosystems
Title | Nitrogen enrichment changed the biogeochemical role of sesarmid crabs by shifting their diets in tropical mangrove ecosystems |
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Authors | |
Keywords | Carbon Crabs Mangroves Microbiome Microphytobenthos Nitrogen |
Issue Date | 1-Apr-2024 |
Publisher | Elsevier |
Citation | Marine Pollution Bulletin, 2024, v. 201 How to Cite? |
Abstract | Sesarmid crabs modulate nutrient dynamics of tropical mangroves through their leaf-eating habit. How N enrichment may alter this regulatory role, and the implications for mangrove nutrient dynamics, remain unclear. Using a mesocosm experiment, we tested how N enrichment could change the microphytobenthos (MPB) communities, thus modifying the crabs' diet and their role in nutrient dynamics. The factorial experiment combined with field investigation revealed a significant increase in the relative abundance of cyanobacteria. Stable isotope analysis suggested that the main carbon source of crabs shifted from leaf litter to cyanobacteria in mesocosms under both high (20×) and low (2×) N enrichment treatments. The significantly lower total cellulase activity of crabs in the mesocosms might explain the decreased carbon assimilation from leaf litter. The changes in the MPB and the microbiome with N enrichment in the presence of crabs may drive significantly higher carbon processing rate in tropical mangroves. |
Persistent Identifier | http://hdl.handle.net/10722/342849 |
ISSN | 2021 Impact Factor: 7.001 2020 SCImago Journal Rankings: 1.548 |
DC Field | Value | Language |
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dc.contributor.author | Gao, Xueqin | - |
dc.contributor.author | Gaitan-Espitia, Juan Diego | - |
dc.contributor.author | Lee, Shing Yip | - |
dc.date.accessioned | 2024-05-02T03:06:20Z | - |
dc.date.available | 2024-05-02T03:06:20Z | - |
dc.date.issued | 2024-04-01 | - |
dc.identifier.citation | Marine Pollution Bulletin, 2024, v. 201 | - |
dc.identifier.issn | 0025-326X | - |
dc.identifier.uri | http://hdl.handle.net/10722/342849 | - |
dc.description.abstract | <p>Sesarmid crabs modulate nutrient dynamics of tropical mangroves through their leaf-eating habit. How N enrichment may alter this regulatory role, and the implications for mangrove nutrient dynamics, remain unclear. Using a mesocosm experiment, we tested how N enrichment could change the microphytobenthos (MPB) communities, thus modifying the crabs' diet and their role in nutrient dynamics. The factorial experiment combined with field investigation revealed a significant increase in the relative abundance of cyanobacteria. Stable isotope analysis suggested that the main carbon source of crabs shifted from leaf litter to cyanobacteria in mesocosms under both high (20×) and low (2×) N enrichment treatments. The significantly lower total cellulase activity of crabs in the mesocosms might explain the decreased carbon assimilation from leaf litter. The changes in the MPB and the microbiome with N enrichment in the presence of crabs may drive significantly higher carbon processing rate in tropical mangroves.<br></p> | - |
dc.language | eng | - |
dc.publisher | Elsevier | - |
dc.relation.ispartof | Marine Pollution Bulletin | - |
dc.subject | Carbon | - |
dc.subject | Crabs | - |
dc.subject | Mangroves | - |
dc.subject | Microbiome | - |
dc.subject | Microphytobenthos | - |
dc.subject | Nitrogen | - |
dc.title | Nitrogen enrichment changed the biogeochemical role of sesarmid crabs by shifting their diets in tropical mangrove ecosystems | - |
dc.type | Article | - |
dc.description.nature | preprint | - |
dc.identifier.doi | 10.1016/j.marpolbul.2024.116183 | - |
dc.identifier.scopus | eid_2-s2.0-85185841277 | - |
dc.identifier.volume | 201 | - |
dc.identifier.eissn | 1879-3363 | - |
dc.identifier.issnl | 0025-326X | - |