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uBio  Web  Results 131 - 140 of about 864 Synonyms:    Pseudogobius avicennia     Vaimosa avicennia  Broader Terms:    Perciformes (perch-likes)     Pseudogobius (snouted gobies)     Vaimosa      External Resources: Common Names: 大眼擬鰕虎魚, 大眼拟鰕虎鱼 131.  Quantifying how changing mangrove cover affects ecosystem carbon storage in coastal wetlands. Charles SP, Kominoski JS, Armitage AR, Guo H, Weaver CA, Pennings SC EcologyEcologyQuantifying how changing mangrove cover affects ecosystem carbon storage in coastal wetlands.e0291610.1002/ecy.2916Despite overall global declines, mangroves are expanding into and within many subtropical wetlands, leading to heterogeneous cover of marsh-mangrove coastal vegetation communities near the poleward edge of mangroves' ranges. Coastal wetlands are globally important carbon sinks, yet the effects of shifts in mangrove cover on organic-carbon (OC) storage remains uncertain. We experimentally maintained black mangrove (Avicennia germinans) or marsh vegetation in patches (n = 1,120, 3 × 3 m) along a gradient in mangrove cover (0-100%) within coastal wetland plots (n = 10, 24 × 42 m) and measured changes in OC stocks and fluxes. Within patches, above and belowground biomass (OC) was 1,630% and 61% greater for mangroves than for recolonized marshes, and soil OC was 30% greater beneath mangrove than marsh vegetation. At the plot scale, above and belowground biomass increased linearly with mangrove cover but soil OC was highly variable and unrelated to mangrove cover. Root ingrowth was not different in mangrove or marsh patches, nor did it change with mangrove cover. After 11 months, surface OC accretion was negatively related to plot-scale mangrove cover following a high-wrack deposition period. However, after 22 months, accretion was 54% higher in mangrove patches, and there was no relationship to plot-scale mangrove cover. Marsh (Batis maritima) leaf and root litter had 1,000% and 35% faster breakdown rates (k) than mangrove (A. germinans) leaf and root litter. Soil temperatures beneath mangroves were 1.4°C lower, decreasing aboveground k of fast- (cellulose) and slow-decomposing (wood) standard substrates. Wood k in shallow soil (0-15 cm) was higher in mangrove than marsh patches, but vegetation identity did not impact k in deeper soil (15-30 cm). We found that mangrove cover enhanced OC storage by increasing biomass, creating more recalcitrant organic matter and reducing k on the soil surface by altering microclimate, despite increasing wood k belowground and decreasing allochthonous OC subsidies. Our results illustrate the importance of mangroves in maintaining coastal OC storage, but also indicate that the impacts of vegetation change on OC storage may vary based on ecosystem conditions, organic-matter sources, and the relative spatiotemporal scales of mangrove vegetation change.© 2019 by the Ecological Society of America.CharlesSean PSP0000-0002-5626-1192Department of Biological Sciences and Southeast Environmental Research Center, Florida International University, Miami, Florida, 33199, USA.KominoskiJohn SJS0000-0002-0978-3326Department of Biological Sciences and Southeast Environmental Research Center, Florida International University, Miami, Florida, 33199, USA.ArmitageAnna RAR0000-0003-1563-8026Department of Marine Biology, Texas A&M University at Galveston, P.O. Box 1675, Galveston, Texas, 77553, USA.GuoHongyuHDepartment of Biology and Biochemistry, University of Houston, Houston, Texas, 77204, USA.Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300387, China.WeaverCarolyn ACA0000-0002-1447-6371Department of Ecosystem Science and Management, Texas A&M University, College Station, Texas, 77843, USA.PenningsSteven CSC0000-0003-4757-7125Department of Biology and Biochemistry, University of Houston, Houston, Texas, 77204, USA.engJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, Non-P.H.S.20191217United StatesEcology00435410012-96587440-44-0CarbonIMAvicenniaCarbonClimate ChangeEcosystemWetlandsGulf of Mexicoblue carbonclimate changecoastal wetlandsecosystem functionmangrove expansionregime shiftsea-level risevegetation change20190304201906202019091120191028602020926602019102560ppublish3164661310.1002/ecy.2916