Article
Forestry
Mayra Mendoza-Carino, Ana L. Bautista-Olivas, Hector F. Duarte-Tagles, Hernan Celaya-Michel
Summary: Mangroves play a crucial role in mitigating climate change by providing important environmental goods and services. This study estimated the economic value of carbon stock in the aboveground biomass of mangroves in Bahia del Tobari and El Sargento. The findings showed that both sites had high carbon reserves and avoided CO2e emissions compared to other studies in the region.
REVISTA CHAPINGO SERIE CIENCIAS FORESTALES Y DEL AMBIENTE
(2022)
Article
Plant Sciences
Judith Avina-Hernandez, Elisa Serviere-Zaragoza, Ma del Carmen Gutierrez-Castorena, Armando Trasvina-Castro, Cesar A. Salinas-Zavala, Raul O. Martinez-Rincon
Summary: The purpose of this study was to analyze the spatial distribution of soil organic carbon (SOC) in mangroves of an arid environment and its relationship with different mangrove species. The study utilized aerial imagery, supervised classification, and the Generalized Additive Model (GAM) to achieve this. The results showed that the highest SOC content was found between 20 and 60 meters from water bodies, with Rhizophora mangle having the highest SOC content followed by Laguncularia racemosa and Avicennia germinans.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2022)
Article
Biodiversity Conservation
Giovanna McClenachan, Megan Witt, Linda J. Walters
Summary: Studies have shown that increases in minimum air temperatures in the southeastern United States have led to transitions of salt marshes to mangroves, but there is no documentation of oyster reefs converting to mangrove islands. Through aerial photographs and high-resolution satellite imagery, researchers found that the coverage and number of mangrove patches on oyster reefs in Mosquito Lagoon, FL have increased from 1943 to 2017. The expansion of mangroves on oyster reefs correlated with a lack of extreme freeze events and could potentially lead to a shift from intertidal oyster reefs to mangrove islands near polar mangrove range limits.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Engineering, Marine
Jassim A. Al-Khayat, Juha M. Alatalo
Summary: Mangroves, especially Avicennia marina, form a complex of aerial roots known as pneumatophores to support growth in low-oxygen environments. Studies show a positive correlation between pneumatophore abundance and sediment mud content, as well as a negative correlation with sediment oxygen levels. This adaptation allows mangrove trees to thrive in anaerobic conditions by increasing gas exchange through pneumatophores. Natural mangrove forests have higher pneumatophore abundance compared to planted mangroves, with the highest numbers closest to the sea.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Biodiversity Conservation
David Alejandro Sanchez-Nunez, J. Alexandra Rodriguez-Rodriguez, Jose Ernesto Mancera Pineda
Summary: This study found that tree recruitment and landscape cover changes in a South American mangrove complex were influenced by El Nino Southern Oscillation (ENSO) climate variability and hydrological rehabilitation. The rates of change of porewater salinity and ENSO intensity explained a significant portion of mangrove cover change rates and porewater salinity. These findings highlight the importance of considering porewater salinity, its rates of change, light availability, and climate variability in monitoring and mangrove restoration planning.
JOURNAL OF APPLIED ECOLOGY
(2023)
Article
Marine & Freshwater Biology
Ronny Peters, Catherine Lovelock, Jorge Lopez-Portillo, Jasper Bathmann, Marie-Christin Wimmler, Jiang Jiang, Marc Walther, Uta Berger
Summary: The study focuses on how mangrove species in the genus Avicennia shed canopy parts when exposed to adverse environmental conditions, and the regulating impact of water balance in the combined plant-soil system.
ESTUARINE COASTAL AND SHELF SCIENCE
(2021)
Article
Green & Sustainable Science & Technology
Corine Bitossessi Laurenda Sinsin, Kolawole Valere Salako, Adande Belarmain Fandohan, Konan Edouard Kouassi, Brice Augustin Sinsin, Romain Glele Kakai
Summary: The study reveals strong spatial variations of climatic and physico-chemical variables within mangroves' niche, with artificial neural network outperforming multiple linear regression in predicting salinity, dissolved oxygen, and conductivity trends. Based on foreseen trends in bioclimatic variables, significant changes in conductivity, salinity, and dissolved oxygen are expected under Representative Concentration Pathways 4.5 and 8.5.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2022)
Article
Ecology
Havalend E. Steinmuller, Joshua L. Breithaupt, Kevin M. Engelbert, Prakhin Assavapanuvat, Thomas S. Bianchi
Summary: Globally, mangrove range limits are expanding, potentially affecting adjacent coastal ecosystems. This study in the Apalachicola Bay region of Florida found that soil organic carbon density in mangroves is not significantly influenced by dominant plant taxa, but rather by site-specific environmental attributes. The findings also indicate that shifts in plant taxa have occurred at all study sites. Overall, mangrove soil organic carbon concentrations are equal to or lower than those of neighboring saltmarsh habitats.
FRONTIERS IN FORESTS AND GLOBAL CHANGE
(2022)
Article
Forestry
Sin-He Pan, Chuan-Wen Ho, Chiao-Wen Lin, Shou-Chung Huang, Hsing-Juh Lin
Summary: The study found that mangroves are critical habitats for macrobenthos, but the effects of mangrove vegetation on macrobenthic abundance and composition are inconsistent. The community composition of macrobenthos varied seasonally and between habitats, with differences in food supply, temperature, and shelter playing a role. Crab density was lower in mangroves compared to mudflats, suggesting a complex relationship between mangrove tree density and macrobenthic abundance.
Article
Forestry
Sarawan Hongwiset, Chadtip Rodtassana, Sasitorn Poungparn, Suthathip Umnouysin, Vilanee Suchewaboripont
Summary: The study found heterogeneous vegetation structures in Avicennia alba plantations, with pneumatophore characteristics decreasing towards the interior with topographic gradient and inundation period. Sedimentation rates were higher in the plantation than on the mudflat, with a negative correlation with pneumatophore height, total surface area, and volume. The findings suggest that an optimal complexity of aboveground vegetation structure may enhance sedimentation rates.
Article
Ecology
Jerferson de Lima Freires, Frederico Lage-Pinto, Elaine Bernini
Summary: The record of severe defoliation caused by lepidopteran larvae in mangrove forests has increased in recent decades, causing concern for the already threatened ecosystem. This study used satellite data to assess the extent and health of the mangrove forest in response to severe defoliation caused by caterpillars of the invasive moth Hyblaea puera. The results showed that about 10% of the mangrove area was intensely affected by defoliation, with the A. schaueriana stand being more affected than the A. germinans stand. The health of both stands degraded in October 2020 but showed improvement in biomass production in June 2021. The study highlights the differences in resilience between the two mangrove species.
REGIONAL STUDIES IN MARINE SCIENCE
(2023)
Article
Ecology
Masaya Yoshikai, Takashi Nakamura, Rempei Suwa, Sahadev Sharma, Rene Rollon, Jun Yasuoka, Ryohei Egawa, Kazuo Nadaoka
Summary: Soil salinity is an important environmental factor in mangrove forests, affecting productivity and tree competition. This study developed a model incorporating plant hydraulics to investigate the growth characteristics of mangroves under salt stress. The model predictions aligned with field data, highlighting the influence of salinity on mangrove forest structures.
Article
Plant Sciences
Ugo Mendes Diniz, Tarcila de Lima Nadia, Marco Aurelio Ribeiro Mello, Isabel Cristina Machado
Summary: Mangroves are unique ecosystems with less studied pollination networks. This study investigated the pollination network of a Neotropical mangrove and found that pollinator species were peripheral and plant species formed a generalized core. However, the network showed moderate specialization with taxon-specific interaction patterns, indicating idiosyncrasies in mangrove pollination systems.
Article
Agricultural Engineering
Serge M. G. Zanvoa, Sylvanus Mensah, Kolwole Salako, Romain Glele Kakai
Summary: Accurate estimation of biomass and carbon stocks in mangrove forests is crucial for understanding their role in climate regulation. This study developed species-specific allometric equations and evaluated biomass allocation in two West African mangrove species. The new biomass models more accurately predicted biomass compared to existing models.
BIOMASS & BIOENERGY
(2023)
Article
Environmental Sciences
Andrea Munoz-Garcia, Ziv Arbeli, Vivian Boyaca-Vasquez, Javier Vanegas
Summary: This study used metagenomics and genomics to analyze the abundance of genes associated with heavy metal resistance and tolerance in the rhizosphere microbiome of Avicennia germinans in a semi-arid mangrove in La Guajira, Colombia. The study identified a total of 28 genes associated with tolerance and 49 genes related to resistance to heavy metals. Genes associated with Cu tolerance, particularly cusA and copA, were the most abundant. The Vibrio fluvialis isolate showed the ability to tolerate Cu, Ni, Zn, and Cd. The study provides insights into the potential of mangrove microorganisms to tolerate and resist heavy metals and the influence of salinity on their abundance.
MARINE POLLUTION BULLETIN
(2022)
Article
Geography, Physical
Stoil Chapkanski, Gilles Brocard, Franck Lavigne, Camille Tricot, Ella Meilianda, Nazli Ismail, Jedrzej Majewski, Jean-Philippe Goiran, Dedy Alfian, Patrick Daly, Benjamin Horton, Adam Switzer, Veronique Degroot, Annika Steuer, Bernhard Siemon, Julien Cavero, Clement Virmoux, Darusman Darusman
Summary: River deltas are significantly impacted by demographic growth and land use intensification, leading to rapid migration of coastal areas and threats to urban settlements, coastal farming, and ecosystems. Studying the geomorphological evolution of deltas can be enhanced through the use of overlapping maps and aerial photographs, along with satellite images, to track changes in fluvial and coastal landforms. The evolution of river channels and coastlines in the Aceh River delta over the past 130 years reveals a progressive decrease in sediment supply, resulting in lengthening and narrowing of river channels, landward migration of the shoreline, and narrowing of beach ridges. The 2004 Indian Ocean tsunami caused an instantaneous retreat of the coastline, accelerating the overall trend of retreat. Beach ridges located up-drift of rivers and tidal channel mouths are particularly vulnerable to long-term landward retreat and tsunamigenic erosion.
EARTH SURFACE PROCESSES AND LANDFORMS
(2022)
Article
Geography, Physical
Ingrid. A. K. Ward, Mark D. Bateman, Piers Larcombe, Peter M. Scott, Tanghua Li, Kayla Murai, Nicole S. Khan, Peter Veth, Patrick Cullen
Summary: The study highlights the importance of integrating geological, sedimentological, and archaeological records to understand the cultural site formation and physical dynamics of Barrow Island. The new data provides insights into the island's paleogeography and evolution, while also revealing limitations in our understanding of its past and present physical dynamics.
QUATERNARY INTERNATIONAL
(2022)
Article
Multidisciplinary Sciences
Jennifer S. Walker, Robert E. Kopp, Christopher M. Little, Benjamin P. Horton
Summary: Sea-level rise is an important indicator of climate changes. The authors estimate that global sea-level rise emerged by 1863 and find spatial variability of emergence at sites within the North Atlantic.
NATURE COMMUNICATIONS
(2022)
Article
Geography, Physical
Juliet Sefton, Sarah Woodroffe, Philippa Ascough, Nicole Khan
Summary: This study examines the reliability of different sample types for radiocarbon dating in mangrove sediments. The results show that bulk sediment and organic concentrate ages are comparable, while above-ground macrofossils yield older ages. Limited accommodation space and low sediment accretion rates in the Seychelles mangrove environment may affect the preservation of macrofossils. The availability of accommodation space and sediment composition control the reliability of mangrove radiocarbon chronologies.
Article
Geography, Physical
Roger C. Creel, Jacqueline Austermann, Nicole S. Khan, William J. D'Andrea, Nicholas Balascio, Blake Dyer, Erica Ashe, William Menke
Summary: This study presents the first comprehensive postglacial relative sea-level database for the Norwegian coast from Oslo to the Kola Peninsula. The research assesses the spatiotemporal patterns of Norwegian RSL change through quality controlled and recalibrated data, as well as statistical modeling.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Geochemistry & Geophysics
Christopher H. Vane, Alexander W. Kim, Raquel A. Lopes dos Santos, Joel C. Gill, Vicky Moss-Hayes, Jemimah K. Mulu, Jessica R. Mackie, Antonio MPJ. Ferreira, Simon R. Chenery, Lydia A. Olaka
Summary: The study found that sediments in Nairobi slums are generally of poor quality, with high levels of toxic substances and noticeable presence of untreated human feces. Different slums showed varying degrees of contamination of hormones, drugs, and antibiotics. Persistent organic pollutants and trace metals also showed some level of contamination, calling for stronger policy measures to improve urban infrastructure and protect ecological and human health.
APPLIED GEOCHEMISTRY
(2022)
Article
Energy & Fuels
Umaru Musa, Miguel Castro-Diaz, Clement N. Uguna, Colin E. Snape
Summary: This study investigates the effects of temperature, residence time, and water to biomass mass ratio on the composition of biocoal and the extent of alkaline and alkaline metal removal during hydrothermal carbonisation of pine Kraft lignin. The results showed that temperature had the most significant effect on biocoal yield and properties, while water to lignin mass ratio only affected alkaline and alkaline earth metals removal.
Correction
Multidisciplinary Sciences
Yannick Garcin, Enno Schefuss, Greta C. Dargie, Donna Hawthorne, Ian T. Lawson, David Sebag, George E. Biddulph, Bart Crezee, Yannick E. Bocko, Suspense A. Ifo, Y. Emmanuel Mampouya Wenina, Mackline Mbemba, Corneille E. N. Ewango, Ovide Emba, Pierre Bola, Joseph Kanyama Tabu, Genevieve Tyrrell, Dylan M. Young, Ghislain Gassier, Nicholas T. Girkin, Christopher H. Vane, Thierry Adatte, Andy J. Baird, Arnoud Boom, Pauline Gulliver, Paul J. Morris, Susan E. Page, Sofie Sjogersten, Simon L. Lewis
Article
Geography, Physical
Rachel B. Stearns, Simon E. Engelhart, Andrew C. Kemp, Troy D. Hill, Matthew J. Brain, Reide Corbett
Summary: Tide-gauge measurements in the western North Atlantic Ocean reveal consistent multi-decadal relative sea-level trends across various scales. Proxy reconstructions from salt-marsh sediments can extend this record, but the coherence of these reconstructions within a region is not well-investigated. In this study, a new relative sea-level reconstruction from Fox Hill Marsh, Rhode Island is developed to complement existing records at nearby sites, using a Bayesian transfer function and radiocarbon dating. The findings replicate regional tide-gauge measurements and other proxy reconstructions, highlighting the importance of continued replication efforts to enhance confidence in sea-level records.
QUATERNARY SCIENCE REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
Brian Yellen, Jonathan D. Woodruff, Hannah E. Baranes, Simon E. Engelhart, W. Rockwell Geywer, Noa Randall, Frances R. Griswold
Summary: There is concern about rising sea levels drowning salt marshes faster than they can build elevation. Little attention has been paid to how changes in inlet geometry affect estuarine tides and marshes. A storm in 1898 created a new inlet, shortening one river and lengthening another. Measurements suggest that this caused increased high tides and frequent inundation. Sediment deposition and channel widening allowed the marshes to adjust to the increased inundation and survive rapid sea level rise.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2023)
Article
Multidisciplinary Sciences
Chloe Brown, Doreen S. Boyd, Sofie Sjogersten, Christopher H. Vane
Summary: In this paper, organic geochemical analysis and remote sensing data were used to predict peat conditions and carbon storage in the North Selangor Peat Swamp forest, Malaysia. The study found that degraded peatland areas can be identified using remotely sensed data, which can be used to support conservation and restoration efforts.
Article
Geography, Physical
Fangyi Tan, Nicole S. Khan, Tanghua Li, Aron J. Meltzner, Jedrzej Majewski, Nicholas Chan, Peter M. Chutcharavan, Niamh Cahill, Matteo Vacchi, Dongju Peng, Benjamin P. Horton
Summary: This study establishes a standardized database of Holocene relative sea-level (RSL) data from far-field islands in the mid-Pacific. The database can be used to validate the ice-melting histories of glacial isostatic adjustment (GIA) models. Lack of quality control in the RSL reconstruction hinders understanding of regional variability and ice-equivalent sea-level changes.
QUATERNARY SCIENCE REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Miguel Castro-Diaz, Mohamed Osmani, Sergio Cavalaro, Inigo Cacho, Iratxe Uria, Paul Needham, Jeremy Thompson, Bill Parker, Tatiana Lovato
Summary: This article evaluates a laboratory-scale hyperspectral imaging system for automatic sorting of plasterboard waste. The system is able to differentiate between plasterboard and contaminants. Chemical purity analysis shows that the gypsum particles from the sorted plasterboard waste have similar purity levels as those from the unprocessed waste.
APPLIED SCIENCES-BASEL
(2023)
Article
Energy & Fuels
Fatih Guelec, Will Meredith, Colin E. Snape
Summary: Oil refineries contribute up to 5% of global CO2 emissions, with a significant portion coming from the Fluid Catalytic Cracking (FCC) process. A study has investigated the combustion behavior of different types of cokes using oxygen carriers CuO, Co3O4, and Mn2O3. The results show that CuO is the most effective carrier at high temperatures and can achieve high combustion efficiency.
JOURNAL OF THE ENERGY INSTITUTE
(2023)
Article
Environmental Sciences
Alison M. Williams-Clayson, Christopher H. Vane, Matthew D. Jones, Russell Thomas, Alexander W. Kim, Christopher Taylor, Darren J. Beriro
Summary: This study investigated soils sampled from 10 former manufactured gas plants in the UK using GC-MS/MS and RE. The distributions and concentrations of PAHs and the parameters of RE were analyzed to establish relationships between soils and the MGP processes history. The results showed that PAHs distributions and RE parameters can assist with differentiating between MGP processes, and RE parameters have the potential to estimate the reactivity and release of PAHs from soils.
ENVIRONMENTAL POLLUTION
(2023)