Scientific Results

This catalogue is obtained by conducting a systematic literature review of scientific studies and reviews related to monitoring, forecasting, and simulating the inland water cycle. The analysis maps scientific expertise across research groups and classifies findings by the type of inland water studied, application focus, and geographical scope. A gap analysis will identify missing research areas and assess their relevance to policymaking.

ID â–Č Type Year Authors Title Venue/Journal DOI Research type Water System Technical Focus Abstract Link with Projects Link with Tools Related policies ID
publications-481 PEER REVIEWED ARTICLE 2010 Sergi MassĂł i AlemĂĄn, Carine Bourgeois, Ward Appeltans, Bart Vanhoorne, Nathalie De Hauwere, Piet Stoffelen, AndrĂ© Heughebaert,Farid Dahdouh-Guebas The ‘Mangrove Reference Database and Herbarium’ 10.5091/plecevo.2010.439 Uncategorized Natural Water Bodies No abstract available 247514
publications-482 PEER REVIEWED ARTICLE 2014 Santos, L.C.M.; Reis Matos, H.; Schaeffer-Novelli, Y.; Cunha-Lignon, M.; Dantas Bitencourt, M.; Koedam, N.; Dahdouh-Guebas, F. Anthropogenic activities in mangrove areas(SĂŁo Francisco River Estuary, Brazil Northeast): A GIS-based analysis of CBERS and SPOT images to aid in local management 10.1016/j.ocecoaman.2013.12.010 Uncategorized Natural Water Bodies No abstract available 247514
publications-483 PEER REVIEWED ARTICLE 2013 Cavanaugh KC, Kellner JR, Forde AJ, Gruner DS, Parker JD, Rodriguez W, Feller IC. Poleward expansion of mangroves is a threshold response to decreased frequency of extreme cold events 10.1073/pnas.1315800111 Uncategorized Natural Water Bodies Significance Coastal mangrove forests support a diverse array of associated species and provide ecosystem services to human communities. Mangroves cannot tolerate extreme freezing temperatures and so are generally limited to tropical environments. However, climate change in the form of increasing temperatures has the potential to facilitate increases in mangrove abundance near tropical–temperate transition zones. Here, we use 28 y of satellite imagery to demonstrate that increases in mangrove area have already occurred along the northeast coast of Florida. These increases correspond to decreases in the frequency of extreme cold events in this region. We also identify a temperature-related ecological threshold of −4°C. These results suggest that landscape-scale increases in mangrove area may occur in other regions where this threshold is crossed. 247514
publications-484 PEER REVIEWED ARTICLE 2014 Kyle C. Cavanaugh,James R. Kellner,Alexander J. Fordec,Daniel S. Grunerd,John D. Parkera,Wilfrid Rodrigueza,Ilka C. Fellera Reply to Giri and Long: Freeze-mediated expansion of mangroves does not depend on whether expansion is emergence or reemergence 10.1073/pnas.1401809111 Uncategorized Natural Water Bodies No abstract available 247514
publications-485 PEER REVIEWED ARTICLE 2014 E. M. R. Robert , A. H. Jambia , N. Schmitz , D. J. R. De Ryck , J. De Mey , J. G. Kairo , F. Dahdouh-Guebas , H. Beeckman , N. Koedam How to catch the patch? A dendrometer study of the radial increment through successive cambia in the mangrove Avicennia 10.1093/aob/mcu001 Uncategorized Natural Water Bodies No abstract available 247514
publications-486 PEER REVIEWED ARTICLE 2014 D. Di Nitto, G. Neukermans, N. Koedam, H. Defever, F. Pattyn, J. G. Kairo, and F. Dahdouh-Guebas Mangroves facing climate change: landward migration potential in response to projected scenarios of sea level rise 10.5194/bg-11-857-2014 Uncategorized Natural Water Bodies Abstract. Mangrove forests prominently occupy an intertidal boundary position where the effects of sea level rise will be fast and well visible. This study in East Africa (Gazi Bay, Kenya) addresses the question of whether mangroves can be resilient to a rise in sea level by focusing on their potential to migrate towards landward areas. The combinatory analysis between remote sensing, DGPS-based ground truth and digital terrain models (DTM) unveils how real vegetation assemblages can shift under different projected (minimum (+9 cm), relative (+20 cm), average (+48 cm) and maximum (+88 cm)) scenarios of sea level rise (SLR). Under SLR scenarios up to 48 cm by the year 2100, the landward extension remarkably implies an area increase for each of the dominant mangrove assemblages except for Avicennia marina and Ceriops tagal, both on the landward side. On the one hand, the increase in most species in the first three scenarios, including the socio-economically most important species in this area, Rhizophora mucronata and C. tagal on the seaward side, strongly depends on the colonisation rate of these species. On the other hand, a SLR scenario of +88 cm by the year 2100 indicates that the area flooded only by equinoctial tides strongly decreases due to the topographical settings at the edge of the inhabited area. Consequently, the landward Avicennia-dominated assemblages will further decrease as a formation if they fail to adapt to a more frequent inundation. The topography is site-specific; however non-invadable areas can be typical for many mangrove settings. 247514
publications-487 PEER REVIEWED ARTICLE 2013 Yue Lin, Franka Huth, Uta Berger, VolkerGrimm 248The role of belowground competition and plastic biomass allocationin altering plant mass–density relationships 10.1111/j.1600-0706.2013.00921.x Uncategorized Natural Water Bodies Metabolic scaling theory (MST) predicts a ‘universal scaling law’ for plant mass–density relationships, but empirical observations are more variable. Possible explanations of this variability include plasticity in biomass allocation between the above‐ and belowground compartment and different modes of competition, which can be asymmetric or symmetric. Although complex interactions of these factors are likely to occur, so far the majority of modelling and empirical studies has focussed on mono‐factorial explanations. We here present a generic individual‐based model, which allows exploring the plant mass–density relationship in realistic settings by representing plasticity of biomass allocation and different modes of competition in the above‐ and belowground compartment. Plants grew according to an ontogenetic growth model derived from MST. To evaluate the behavior of the simulated plants related to the allocation patterns and to validate model predictions, we conducted greenhouse experiments with tree seedlings. The model reproduced empirical patterns both at the individual and population level. Without belowground resource limitation, aboveground processes dominated and the slopes of mass–density relationships followed the predictions of MST. In contrast, resource limitation led to an increased allocation of biomass to belowground parts of the plants. The subsequent dominance of symmetric belowground competition caused significantly shallower slopes of the mass–density relationship, even though the growth of individual plants followed MST. We conclude that changes in biomass allocation induced by belowground resource limitation explain the deviations from the mass–density relationship predicted by MST. Taking into account the plasticity of biomass allocation and its linkage to the above‐ and belowground competition is critical for fully representing plant communities, in particular for correctly predicting their response of carbon storage and sequestration to changing environmental conditions. 247514
publications-488 PEER REVIEWED ARTICLE 2014 Nibedita Mukherjee1,William J. Sutherland,Md Nabiul I. Khan,Uta Berger,Nele Schmitz,Farid Dahdouh-Guebas,Nico Koedam Using expert knowledge and modelling to define mangrove composition, functioning and threats and estimate time-frame for recovery 10.1002/ece3.1085 Uncategorized Uncategorized AbstractMangroves are threatened worldwide, and their loss or degradation could impact functioning of the ecosystem. Our aim was to investigate three aspects of mangroves at a global scale: (1) their constituents (2) their indispensable ecological functions, and (3) the maintenance of their constituents and functions in degraded mangroves. We focused on answering two questions: “What is a mangrove ecosystem” and “How vulnerable are mangrove ecosystems to different impacts”? We invited 106 mangrove experts globally to participate in a survey based on the Delphi technique and provide inputs on the three aspects. The outputs from the Delphi technique for the third aspect, i.e. maintenance of constituents and functions were incorporated in a modeling approach to simulate the time frame for recovery. Presented here for the first time are the consensus definition of the mangrove ecosystem and the list of mangrove plant species. In this study, experts considered even monospecific (tree) stands to be a mangrove ecosystem as long as there was adequate tidal exchange, propagule dispersal, and faunal interactions. We provide a ranking of the important ecological functions, faunal groups, and impacts on mangroves. Degradation due to development was identified as having the largest impact on mangroves globally in terms of spatial scale, intensity, and time needed for restoration. The results indicate that mangroves are ecologically unique even though they may be species poor (from the vegetation perspective). The consensus list of mangrove species and the ranking of the mangrove ecological functions could be a useful tool for restoration and management of mangroves. While there is ample literature on the destruction of mangroves due to aquaculture in the past decade, this study clearly shows that more attention must go to avoiding and mitigating mangrove loss due to coastal development (such as building of roads, ports, or harbors). 247514
publications-489 PEER REVIEWED ARTICLE 2013 K. Leempoel, C. Bourgeois, J. Zhang, J. Wang, M. Chen, B. Satyaranayana, J. Bogaert,F. Dahdouh-Guebas Spatial heterogeneity in mangroves assessed by GeoEye-1 satellite data: a case-study in Zhanjiang Mangrove National Nature Reserve (ZMNNR), China 10.5194/bgd-10-2591-2013 Uncategorized Natural Water Bodies Abstract. Mangrove forests, which are declining across the globe mainly because of human intervention, require an evaluation of their past and present status (e.g. areal extent, species-level distribution, etc.) to better implement conservation and management strategies. In this paper, mangrove cover dynamics at Gaoqiao (under the jurisdiction of Zhanjiang Mangrove National Nature Reserve – ZMNNR, P. R. China) were assessed through time using 1967 (Corona KH-4B), 2000 (Landsat ETM+), and 2009 (GeoEye-1) satellite imagery. An important decline in mangrove cover (−36%) was observed between 1967 and 2009 due to dike construction for agriculture (paddy) and aquaculture practices. Moreover, dike construction prevented mangroves from expanding landward. Although a small increase of mangrove area was observed between 2000 and 2009 (+24%), the ratio mangrove/aquaculture kept decreasing due to increased aquaculture at the expense of rice culture. In the land-use/cover map based on ground-truth data (5 m × 5 m plot-based tree measurements) (August–September, 2009) and spectral reflectance values (obtained from pansharpened GeoEye-1), both Bruguiera gymnorrhiza and small Aegiceras corniculatum are distinguishable at 73–100% accuracy, whereas tall A. corniculatum is identifiable at only 53% due to its mixed vegetation stands close to B. gymnorrhiza (classification accuracy: 85%). Sand proportion in the sediment showed significant differences (Kruskal-Wallis/ANOVA, P < 0.05) between the three mangrove classes (B. gymnorrhiza and small and tall A. corniculatum). Distribution of tall A. corniculatum on the convex side of creeks and small A.corniculatum on the concave side (with sand) show intriguing patterns of watercourse changes. Overall, the advantage of very high resolution satellite images like GeoEye-1 for mangrove spatial heterogeneity assessment and/or species-level discrimination is well demonstrated, along with the complexity to provide a precise classification for non-dominant species (e.g. Kandelia obovata) at Gaoqiao. Despite the limitations such as geometric distortion and single band information, the 42-yr old Corona declassified images are invaluable for land-use/cover change detections when compared to recent satellite data sets. 247514
publications-490 PEER REVIEWED ARTICLE 2013 Adolphe Nfotabong-Atheull , Ndongo Din , Farid Dahdouh-Guebas Qualitative and Quantitative Characterization of Mangrove Vegetation Structure and Dynamics in a Peri-urban Setting of Douala (Cameroon): An Approach Using Air-Borne Imagery 10.1007/s12237-013-9638-8 Uncategorized Natural Water Bodies No abstract available 247514