EcoFoG Papers -- Query Results

	EcoFoG Papers Home \| Show All \| Simple Search \| Advanced Search	Login Quick Search: Field: contains: ...
	761–770 of 934 records found matching your query (RSS):

Search & Display Options

Select All Deselect All

[61–70] << 71 72 73 74 75 76 77 78 79 80 >> [81–90]

List View

Citations

Details

	Records
	Author	Vedel, V.; Brena, C.; Arthur, W.
	Title	Demonstration of a heritable component of the variation in segment number in the centipede Strigamia maritima			Type	Journal Article
	Year	2009	Publication	Evolution & Development	Abbreviated Journal	Evol. Dev.
	Volume	11	Issue	4	Pages	434-440
	Keywords
	Abstract	Here we address the question of how arthropod segment number may evolve by reporting the results of further work on the model system Strigamia maritima. Recently, we showed that there was a plastic component of the variation in segment number within this species; now we demonstrate that there is also a heritable component. This is important because it enables a connection to be made between the known latitudinal trend among species of geophilomorph centipedes ( more segments at lower latitudes) and the parallel trend within them. This latter trend is best documented in S. maritima but is also known in several other species. However, while a general connection between the inter- and intraspecific trends can now be made, deciding upon a specific hypothesis of the nature of the selection involved is still problematic. We provide two alternative hypotheses, one based on the temperature-related plasticity in segment number being adaptive, the other based on it being nonadaptive.
	Address	[Vedel, Vincent; Arthur, Wallace] Natl Univ Ireland, Dept Zool, Sch Nat Sci, Galway, Ireland, Email: wallace.arthur@nuigalway.ie
	Corporate Author				Thesis
	Publisher	WILEY-BLACKWELL PUBLISHING, INC	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1520-541X	ISBN		Medium
	Area		Expedition		Conference
	Notes	ISI:000267659600011			Approved	no
	Call Number	EcoFoG @ eric.marcon @			Serial	200
Permanent link to this record



	Author	Dutech, C.; Seiter, J.; Petronelli, P.; Joly, H.I.; Jarne, P.
	Title	Evidence of low gene flow in a neotropical clustered tree species in two rainforest stands of French Guiana			Type	Journal Article
	Year	2002	Publication	Molecular Ecology	Abbreviated Journal	Mol. Ecol.
	Volume	11	Issue	4	Pages	725-738
	Keywords	Caesalpiniaceae; gene flow; recolonization process; spatial genetic structure; tropical rainforest; Vouacapoua americana
	Abstract	The spatial genetic structure of the neotropical, clustered tree species Vouacapoua americana (Aublet) was studied in two natural forest stands (Paracou and Nouragues) in French Guiana. Using eight microsatellite loci, V. americana is characterized by a marked genetic structure at small spatial distances (under 30-60 m), in agreement with the limited seed dispersal by rodent species. Gene flow through pollen is also shown to be mainly restricted to less than 100 m. This result suggests that most pollination events (mediated through small insects) are probably limited to within-patches of individuals, which might explain the high genetic differentiation among patches (F-ST = 0.11) separated by less than 2 km. We also assume that stronger genetic structure in Paracou is likely to be due to lower seed dispersal by rodents, large spatial distances separating patches, or a recent recolonization event.
	Address	CNRS, Ctr Ecol Fonct & Evolut, F-34293 Montpellier 5, France, Email: jarne@cefe.cnrs-mop.fr
	Corporate Author				Thesis
	Publisher	BLACKWELL PUBLISHING LTD	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0962-1083	ISBN		Medium
	Area		Expedition		Conference
	Notes	ISI:000175250300008			Approved	no
	Call Number	EcoFoG @ eric.marcon @			Serial	248
Permanent link to this record



	Author	Lecante, A.; Robert, F.; Blandinieres, P.A.; Roos, C.
	Title	Anti-corrosive properties of S. tinctoria and G. ouregou alkaloid extracts on low carbon steel			Type	Journal Article
	Year	2011	Publication	Current Applied Physics	Abbreviated Journal	Curr. Appl. Phys.
	Volume	11	Issue	3	Pages	714-724
	Keywords	Low carbon steel; Acidic media; Corrosion inhibitor; Plant extract; EIS
	Abstract	The effect of alkaloid extracts from two Amazonian trees (Guatteria ouregou and Simira tinctoria) on low carbon steel corrosion was investigated in acidic solutions by using electrochemical techniques. All of these plant extracts inhibit the corrosion of low carbon steel in 0.1 M HCl solutions. As their concentration increases to 250 mg/L, the inhibition efficiencies of S. tinctoria and G. ouregou alkaloid extracts reach approximately 92% in 0.1 M HCl solutions. The adsorption of the inhibitor molecules was in accordance with the Langmuir adsorption isotherm. The results obtained show that these plant extracts could be serve as an effective inhibitor for the corrosion of low carbon steel in hydrochloric acid media. Furthermore, harmane was identified as the main component of S. tinctoria extract and that suggests that it is the active ingredient against corrosion of low carbon steel. (C) 2010 Elsevier B.V. All rights reserved.
	Address	[Lecante, A.; Robert, F.; Blandinieres, P. A.; Roos, C.] UAG UMR ECOFOG, Lab Mat & Mol Milieu Amazonien, F-97337 Cayenne, French Guiana, France, Email: florent.robert@guyane.univ-ag.fr
	Corporate Author				Thesis
	Publisher	Elsevier Science Bv	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1567-1739	ISBN		Medium
	Area		Expedition		Conference
	Notes	ISI:000288183300088			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	300
Permanent link to this record



	Author	Mouillot, D.; Bellwood, D.R.; Baraloto, C.; Chave, J.; Galzin, R.; Harmelin-Vivien, M.; Kulbicki, M.; Lavergne, S.; Lavorel, S.; Mouquet, N.; Paine, C.E.T.; Renaud, J.; Thuiller, W.
	Title	Rare Species Support Vulnerable Functions in High-Diversity Ecosystems			Type	Journal Article
	Year	2013	Publication	PLoS Biology	Abbreviated Journal	PloS Biol.
	Volume	11	Issue	5	Pages	e1001569
	Keywords
	Abstract	Around the world, the human-induced collapses of populations and species have triggered a sixth mass extinction crisis, with rare species often being the first to disappear. Although the role of species diversity in the maintenance of ecosystem processes has been widely investigated, the role of rare species remains controversial. A critical issue is whether common species insure against the loss of functions supported by rare species. This issue is even more critical in species-rich ecosystems where high functional redundancy among species is likely and where it is thus often assumed that ecosystem functioning is buffered against species loss. Here, using extensive datasets of species occurrences and functional traits from three highly diverse ecosystems (846 coral reef fishes, 2,979 alpine plants, and 662 tropical trees), we demonstrate that the most distinct combinations of traits are supported predominantly by rare species both in terms of local abundance and regional occupancy. Moreover, species that have low functional redundancy and are likely to support the most vulnerable functions, with no other species carrying similar combinations of traits, are rarer than expected by chance in all three ecosystems. For instance, 63% and 98% of fish species that are likely to support highly vulnerable functions in coral reef ecosystems are locally and regionally rare, respectively. For alpine plants, 32% and 89% of such species are locally and regionally rare, respectively. Remarkably, 47% of fish species and 55% of tropical tree species that are likely to support highly vulnerable functions have only one individual per sample on average. Our results emphasize the importance of rare species conservation, even in highly diverse ecosystems, which are thought to exhibit high functional redundancy. Rare species offer more than aesthetic, cultural, or taxonomic diversity value; they disproportionately increase the potential breadth of functions provided by ecosystems across spatial scales. As such, they are likely to insure against future uncertainty arising from climate change and the ever-increasing anthropogenic pressures on ecosystems. Our results call for a more detailed understanding of the role of rarity and functional vulnerability in ecosystem functioning. © 2013 Mouillot et al.
	Address	Biological and Environmental Sciences, University of Stirling, Stirling, United Kingdom
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	15449173 (Issn)	ISBN		Medium
	Area		Expedition		Conference
	Notes	Export Date: 12 June 2013; Source: Scopus; Art. No.: e1001569; Coden: Pblib; :doi 10.1371/journal.pbio.1001569; Language of Original Document: English; Correspondence Address: Mouillot, D.; Unité Mixte de Recherche (UMR) Centre National de la Recherche Scientifique (CNRS)-UM2, Institut français de recherche pour l'exploitation de la mer (IFREMER), Institute for Research and Development (IRD) 5119 ECOSYM, Université Montpellier 2 cc 093, Montpellier, France; email: david.mouillot@univ-montp2.fr			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	492
Permanent link to this record



	Author	Molto, Q.; Herault, B.; Boreux, J.-J.; Daullet, M.; Rousteau, A.; Rossi, V.
	Title	Predicting tree heights for biomass estimates in tropical forests -A test from French Guiana			Type	Journal Article
	Year	2014	Publication	Biogeosciences	Abbreviated Journal	Biogeosciences
	Volume	11	Issue	12	Pages	3121-3130
	Keywords
	Abstract	The recent development of REDD+ mechanisms requires reliable estimation of carbon stocks, especially in tropical forests that are particularly threatened by global changes. Even though tree height is a crucial variable for computing aboveground forest biomass (AGB), it is rarely measured in large-scale forest censuses because it requires extra effort. Therefore, tree height has to be predicted with height models. The height and diameter of all trees over 10 cm in diameter were measured in 33 half-hectare plots and 9 one-hectare plots throughout northern French Guiana, an area with substantial climate and environmental gradients. We compared four different model shapes and found that the Michaelis-Menten shape was most appropriate for the tree biomass prediction. Model parameter values were significantly different from one forest plot to another, and this leads to large errors in biomass estimates. Variables from the forest stand structure explained a sufficient part of plot-to-plot variations of the height model parameters to improve the quality of the AGB predictions. In the forest stands dominated by small trees, the trees were found to have rapid height growth for small diameters. In forest stands dominated by larger trees, the trees were found to have the greatest heights for large diameters. The aboveground biomass estimation uncertainty of the forest plots was reduced by the use of the forest structure-based height model. It demonstrated the feasibility and the importance of height modeling in tropical forests for carbon mapping. When the tree heights are not measured in an inventory, they can be predicted with a height-diameter model and incorporating forest structure descriptors may improve the predictions. © Author(s) 2014. CC Attribution 3.0 License.
	Address	Université de Liège, Liège, Belgium
	Corporate Author				Thesis
	Publisher	European Geosciences Union	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	17264189 (Issn)	ISBN		Medium
	Area		Expedition		Conference
	Notes	Export Date: 3 July 2014; Correspondence Address: Molto, Q.; Université des Antilles et de la Guyane, UMR Ecologie des Forêts de Guyane, Kourou, France; email: quentin.molto@gmail.com			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	550
Permanent link to this record



	Author	Réjou-Méchain, M.; Muller-Landau, H.C.; Detto, M.; Thomas, S.C.; Le Toan, T.; Saatchi, S.S.; Barreto-Silva, J.S.; Bourg, N.A.; Bunyavejchewin, S.; Butt, N.; Brockelman, W.Y.; Cao, M.; Cárdenas, D.; Chiang, J.-M.; Chuyong, G.B.; Clay, K.; Condit, R.; Dattaraja, H.S.; Davies, S.J.; Duque, A.; Esufali, S.; Ewango, C.; Fernando, R.H.S.; Fletcher, C.D.; N. Gunatilleke, I.A.U.; Hao, Z.; Harms, K.E.; Hart, T.B.; Herault, B.; Howe, R.W.; Hubbell, S.P.; Johnson, D.J.; Kenfack, D.; Larson, A.J.; Lin, L.; Lin, Y.; Lutz, J.A.; Makana, J.-R.; Malhi, Y.; Marthews, T.R.; Mcewan, R.W.; Mcmahon, S.M.; Mcshea, W.J.; Muscarella, R.; Nathalang, A.; Noor, N.S.M.; Nytch, C.J.; Oliveira, A.A.; Phillips, R.P.; Pongpattananurak, N.; Punchi-Manage, R.; Salim, R.; Schurman, J.; Sukumar, R.; Suresh, H.S.; Suwanvecho, U.; Thomas, D.W.; Thompson, J.; Uríarte, M.; Valencia, R.; Vicentini, A.; Wolf, A.T.; Yap, S.; Yuan, Z.; Zartman, C.E.; Zimmerman, J.K.; Chave, J.
	Title	Local spatial structure of forest biomass and its consequences for remote sensing of carbon stocks			Type	Journal Article
	Year	2014	Publication	Biogeosciences	Abbreviated Journal	Biogeosciences
	Volume	11	Issue	23	Pages	6827-6840
	Keywords
	Abstract	Advances in forest carbon mapping have the potential to greatly reduce uncertainties in the global carbon budget and to facilitate effective emissions mitigation strategies such as REDD+ (Reducing Emissions from Deforestation and Forest Degradation). Though broad-scale mapping is based primarily on remote sensing data, the accuracy of resulting forest carbon stock estimates depends critically on the quality of field measurements and calibration procedures. The mismatch in spatial scales between field inventory plots and larger pixels of current and planned remote sensing products for forest biomass mapping is of particular concern, as it has the potential to introduce errors, especially if forest biomass shows strong local spatial variation. Here, we used 30 large (8-50 ha) globally distributed permanent forest plots to quantify the spatial variability in aboveground biomass density (AGBD in Mg ha-1) at spatial scales ranging from 5 to 250 m (0.025-6.25 ha), and to evaluate the implications of this variability for calibrating remote sensing products using simulated remote sensing footprints. We found that local spatial variability in AGBD is large for standard plot sizes, averaging 46.3% for replicate 0.1 ha subplots within a single large plot, and 16.6% for 1 ha subplots. AGBD showed weak spatial autocorrelation at distances of 20-400 m, with autocorrelation higher in sites with higher topographic variability and statistically significant in half of the sites. We further show that when field calibration plots are smaller than the remote sensing pixels, the high local spatial variability in AGBD leads to a substantial “dilution” bias in calibration parameters, a bias that cannot be removed with standard statistical methods. Our results suggest that topography should be explicitly accounted for in future sampling strategies and that much care must be taken in designing calibration schemes if remote sensing of forest carbon is to achieve its promise.
	Address	Institute of Biology University of the Philippines DilimanQuezon City, Philippines
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes	Cited By :1; Export Date: 30 January 2015			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	582
Permanent link to this record



	Author	Bossu, J.; Beauchene, J.; Estevez, Y.; Duplais, C.; Clair, B.
	Title	New insights on wood dimensional stability influenced by secondary metabolites: The case of a fast-growing tropical species Bagassa guianensis aubl			Type	Journal Article
	Year	2016	Publication	PLoS ONE	Abbreviated Journal	PLoS ONE
	Volume	11	Issue	3	Pages	e0150777
	Keywords
	Abstract	Challenging evaluation of tropical forest biodiversity requires the reporting of taxonomic diversity but also the systematic characterization of wood properties in order to discover new promising species for timber industry. Among wood properties, the dimensional stability is regarded as a major technological characteristic to validate whether a wood species is adapted to commercial uses. Cell structure and organization are known to influence the drying shrinkage making wood density and microfibrils angle markers of choice to predict wood dimensional stability. On the contrary the role of wood extractive content remains unclear. This work focuses on the fast-growing tropical species Bagassa guianensis and we report herein a correlation between heartwood drying shrinkage and extractive content. Chemical extractions and shrinkage experiments were performed on separate wood twin samples to better evaluate correctly how secondary metabolites influence the wood shrinkage behaviour. Extractive content were qualitatively and quantitatively analysed using HPLC and NMR spectroscopy. We found that B guianensis heartwood has a homogeneous low shrinkage along its radius that could not be explained only by its basic density. In fact the low drying shrinkage is correlated to the high extractive content and a corrected model to improve the prediction of wood dimensional stability is presented. Additionally NMR experiments conducted on sapwood and heartwood extracts demonstrate that secondary metabolites biosynthesis occurs in sapwood thus revealing B. guianensis as a Juglans-Type heartwood formation. This work demonstrates that B. guianensis, a fast-growing species associated with high durability and high dimensional stability, is a good candidate for lumber production and commercial purposes. © 2016 Bossu et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
	Address	Cirad, UMR EcoFoG, AgroParisTech, CNRS, INRA, Université des Antilles, Université de Guyane, Kourou, France
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes	Export Date: 18 April 2016			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	673
Permanent link to this record



	Author	Piponiot, C.; Cabon, A.; Descroix, L.; Dourdain, A.; Mazzei, L.; Ouliac, B.; Rutishauser, E.; Sist, P.; Herault, B.
	Title	A methodological framework to assess the carbon balance of tropical managed forests			Type	Journal Article
	Year	2016	Publication	Carbon Balance and Management	Abbreviated Journal	Carbon Balance and Management
	Volume	11	Issue	1	Pages
	Keywords	Amazonia; Carbon cycle; Error propagation; Production forests; Selective logging
	Abstract	Background: Managed forests are a major component of tropical landscapes. Production forests as designated by national forest services cover up to 400 million ha, i.e. half of the forested area in the humid tropics. Forest management thus plays a major role in the global carbon budget, but with a lack of unified method to estimate carbon fluxes from tropical managed forests. In this study we propose a new time- and spatially-explicit methodology to estimate the above-ground carbon budget of selective logging at regional scale. Results: The yearly balance of a logging unit, i.e. the elementary management unit of a forest estate, is modelled by aggregating three sub-models encompassing (i) emissions from extracted wood, (ii) emissions from logging damage and deforested areas and (iii) carbon storage from post-logging recovery. Models are parametrised and uncertainties are propagated through a MCMC algorithm. As a case study, we used 38 years of National Forest Inventories in French Guiana, northeastern Amazonia, to estimate the above-ground carbon balance (i.e. the net carbon exchange with the atmosphere) of selectively logged forests. Over this period, the net carbon balance of selective logging in the French Guianan Permanent Forest Estate is estimated to be comprised between 0.12 and 1.33 Tg C, with a median value of 0.64 Tg C. Uncertainties over the model could be diminished by improving the accuracy of both logging damage and large woody necromass decay submodels. Conclusions: We propose an innovating carbon accounting framework relying upon basic logging statistics. This flexible tool allows carbon budget of tropical managed forests to be estimated in a wide range of tropical regions. © 2016 The Author(s).
	Address	CNRS, UMR EcoFoG, AgroParisTech, Inra, Université de la Guyane, Université des Antilles, Cirad, Campus Agronomique, Kourou, French Guiana
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes	Export Date: 1 September 2016			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	688
Permanent link to this record



	Author	Salas-Lopez, A.; Violle, C.; Mallia, L.; Orivel, J.
	Title	Land-use change effects on the taxonomic and morphological trait composition of ant communities in French Guiana			Type	Journal Article
	Year	2018	Publication	Insect Conservation and Diversity	Abbreviated Journal	Insect Conserv Divers
	Volume	11	Issue	2	Pages	162-173
	Keywords	Community assembly; Formicidae; functional diversity; gradient analysis; habitat filtering; land-use intensification; n-dimensional hypervolume approach
	Abstract	Abstract Land-use changes frequently lead to major changes in the composition and diversity of organisms. A reduction in the range of strategies enabling organisms to survive in a given environment and changes in the average trait values of species may potentially be associated with variations in species? number and identity. We investigated the variation in ant taxonomic composition and morphological trait diversity along a land-use gradient in French Guiana. We measured 13 core ant morphological traits on all species sampled. We then selected the set of five traits that best captured changes along the land-use gradient. Potential effects of the variation in morphological trait diversity and average values were evaluated by examining morphological traits individually as well as in combination. We found that variation in taxonomic diversity was unrelated to the plot-level morphospace. Conversely, a significant shift in taxonomic composition was accompanied by changes in the average values of community traits along the studied gradient, examined both individually and in combination. We argue that morphological trait values may be related to the success of different species in surviving in a given environment and, therefore, are indicative of the taxonomic turnover in ants along the land-use gradient. Nevertheless, in contradiction with theoretical expectations, the morphospace is only slightly affected by habitat filtering and loosely impacted by taxonomic changes. Examining the sensitivity of the morphospace to abiotic and biotic factors and how it reflects varying ecological pressures for species is thus of the utmost importance.
	Address
	Corporate Author				Thesis
	Publisher	John Wiley & Sons, Ltd (10.1111)	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1752-458x	ISBN		Medium
	Area		Expedition		Conference
	Notes	doi: 10.1111/icad.12248			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	892
Permanent link to this record



	Author	Taureau, F.; Robin, M.; Proisy, C.; Fromard, F.; Imbert, D.; Debaine, F.
	Title	Mapping the mangrove forest canopy using spectral unmixing of very high spatial resolution satellite images			Type	Journal Article
	Year	2019	Publication	Remote Sensing	Abbreviated Journal	Remote Sens.
	Volume	11	Issue	3	Pages	367
	Keywords	Forest structure; Guadeloupe; Hemispherical photographs; Mangrove; Mayotte; New Caledonia; Remote sensing; Image resolution; Photography; Photomapping; Pixels; Remote sensing; Satellites; Vegetation; Forest structure; Guadeloupe; Hemispherical photographs; Mangrove; Mayotte; New Caledonia; Forestry
	Abstract	Despite the lowtree diversity and scarcity of the understory vegetation, the high morphological plasticity of mangrove trees induces, at the stand level, a very large variability of forest structures that need to be mapped for assessing the functioning of such complex ecosystems. Fully constrained linear spectral unmixing (FCLSU) of very high spatial resolution (VHSR) multispectral images was tested to fine-scale map mangrove zonations in terms of horizontal variation of forest structure. The study was carried out on three Pleiades-1A satellite images covering French island territories located in the Atlantic, Indian, and Pacific Oceans, namely Guadeloupe, Mayotte, and New Caledonia archipelagos. In each image, FCLSU was trained from the delineation of areas exclusively related to four components including either pure vegetation, soil (ferns included), water, or shadows. It was then applied to the whole mangrove cover imaged for each island and yielded the respective contributions of those four components for each image pixel. On the forest stand scale, the results interestingly indicated a close correlation between FCLSU-derived vegetation fractions and canopy closure estimated from hemispherical photographs R 2 = 0.95) and a weak relation with the Normalized Difference Vegetation Index (R 2 = 0.29). Classification of these fractions also offered the opportunity to detect and map horizontal patterns of mangrove structure in a given site. K-means classifications of fraction indeed showed a global view of mangrove structure organization in the three sites, complementary to the outputs obtained from spectral data analysis. Our findings suggest that the pixel intensity decomposition applied to VHSR multispectral satellite images can be a simple but valuable approach for (i) mangrove canopy monitoring and (ii) mangrove forest structure analysis in the perspective of assessing mangrove dynamics and productivity. As with Lidar-based surveys, these potential new mapping capabilities deserve further physically based interpretation of sunlight scattering mechanisms within forest canopy. © 2019 by the authors.
	Address	UMR Ecologie des Forêts de Guyane (EcoFoG), INRA, CNRS, Cirad, AgroParisTech, Université des Antilles, Université de Guyane, Kourou, French Guiana, 97310, France
	Corporate Author				Thesis
	Publisher	Mdpi Ag	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	20724292 (Issn)	ISBN		Medium
	Area		Expedition		Conference
	Notes	Export Date: 25 February 2019; Correspondence Address: Taureau, F.; Université de Nantes, UMR CNRS 6554 Littoral Environnement Télédétection Géomatique, Campus TertreFrance; email: florent.taureau@univ-nantes.fr; Funding details: Université de Nantes; Funding text 1: Funding: A part of this study was funded by the French Coastal Conservancy Institute. It was conducted as part of the PhD work of Florent Taureau supported by the University of Nantes.; References: Duke, N.C., Mangrove Coast (2014) Encyclopedia of Marine Geosciences, pp. 1-17. , Harff, J., Meschede, M., Petersen, S., Thiede, J., Eds.; Springer: Berlin, Germany; Feller, I.C., Lovelock, C.E., Berger, U., McKee, K.L., Joye, S.B., Ball, M.C., Biocomplexity in Mangrove Ecosystems (2010) Annu. Rev. Mar. Sci, 2, pp. 395-417; Krauss, K.W., Lovelock, C.E., McKee, K.L., López-Hoffman, L., Ewe, S.M., Sousa, W.P., Environmental drivers in mangrove establishment and early development: A review (2008) Aquat. Bot, 89, pp. 105-127; Chapman, V.J., (1976) Mangrove Vegetation, , Cramer: Vaduz, Liechtenstein; Friess, D.A., Lee, S.Y., Primavera, J.H., Turning the tide on mangrove loss (2016) Mar. Pollut. Bull, 109, pp. 673-675; Alongi, D.M., Mangrove forests: Resilience, protection from tsunamis, and responses to global climate change (2008) Estuar. Coast. Shelf Sci, 76, pp. 1-13; Bouillon, S., Borges, A.V., Castañeda-Moya, E., Diele, K., Dittmar, T., Duke, N.C., Kristensen, E., Rivera-Monroy, V.H., Mangrove production and carbon sinks: A revision of global budget estimates: Global mangrove carbon budgets (2008) Glob. Biogeochem. Cycles, p. 22; Donato, D.C., Kauffman, J.B., Murdiyarso, D., Kurnianto, S., Stidham, M., Kanninen, M., Mangroves among the most carbon-rich forests in the tropics (2011) Nat. Geosci, 4, pp. 293-297; Duke, N.C., Nagelkerken, I., Agardy, T., Wells, S., van Bochove, J.-W., (2014) The Importance of Mangroves to People: A Call to Action, , United Nations Environment ProgrammeWorld Conservation Monitoring Centre: Cambridge, UK; De Lacerda, L.D., (2010) Mangrove Ecosystems: Function and Management, , Springer: Berlin, Germany; Lee, S.Y., Primavera, J.H., Dahdouh-Guebas, F., McKee, K., Bosire, J.O., Cannicci, S., Diele, K., Koedam, N., Cyril Marchand Ecological role and services of tropical mangrove ecosystems: a reassessment: Reassessment of mangrove ecosystem services (2014) Glob. Ecol. Biogeogr, 23, pp. 726-743; Spalding, M., Kainuma, M., Collins, L., (2010) World Atlas of Mangroves, , Routledge: Abingdon, UK; (2007) The World's Mangroves 1980-2005: A Thematic Study Prepared in the Framework of the Global Forest Resources Assessment 2005, , Food and Agriculture Organization of the United Nations: Rome, Italy; Ellison, J.C., Vulnerability assessment of mangroves to climate change and sea-level rise impacts (2015) Wetl. Ecol. Manag, 23, pp. 115-137; Ellison, J., Zouh, I., Vulnerability to Climate Change of Mangroves: Assessment from Cameroon, Central Africa (2012) Biology, 1, pp. 617-638; Gilman, E.L., Ellison, J., Duke, N.C., Field, C., Threats to mangroves from climate change and adaptation options: A review (2008) Aquat. Bot, 89, pp. 237-250; Li, S., Meng, X., Ge, Z., Zhang, L., Evaluation of the threat from sea-level rise to the mangrove ecosystems in Tieshangang Bay, Southern China (2015) Ocean Coast. Manag, 109, pp. 1-8; Alongi, D.M., Present state and future of the world's mangrove forests (2002) Environ. Conserv, 29, pp. 331-349; Panta, M., (2003) Analisys of Forest Canopy Density and Factors Affecting It Using RS and GIS Techniques-A Case Study from Chitwan District of Nepal, , International Institue for Geo-Information Science and Earth Observation: Hengelosestraat, The Netherlands; Birnbaum, P., Canopy surface topography in a French Guiana forest and the folded forest theory (2001) Plant Ecol, 153, pp. 293-300; Lowman, M.D., Schowalter, T., Franklin, J., (2012) Methods in Forest Canopy Research, , University of California Press: Berkeley, CA, USA; Parker, G.G., Structure and microclimate of forest canopies (1995) Forest Canopies: A Review of Research on a Biological Frontier, pp. 73-106. , Lowman, M., Nadkarni, N., Eds.; Academic Press: San Diego, CA, USA; Frazer, G.W., Trofymow, J.A., Lertzman, K.P., (1997) A Method for Estimating Canopy Openness, Effective Leaf Area Index, and Photosynthetically Active Photon Flux Density Using Hemispherical Photography and Computerized Image Analysis Techniques, , Canadian Forest Service, Pacific Forestry Centre: Victoria, BC, Canada; Smith, M.-L., Anderson, J., Fladeland, M., Forest canopy structural properties (2008) Field Measurements for Forest Carbon Monitoring: A Landscape-Scale Approach, pp. 179-196. , Springer: Berlin, Germany; Green, E.P., Clark, C.D., Mumby, P.J., Edwards, A.J., Ellis, A.C., Remote sensing techniques for mangrove mapping (1998) Int. J. Remote Sens, 19, pp. 935-956; Sari, S.P., Rosalina, D., Mapping and Monitoring of Mangrove Density Changes on tin Mining Area (2016) Procedia Environ. Sci, 33, pp. 436-442; Yuvaraj, E., Dharanirajan, K., Saravanan, N., Karpoorasundarapandian, N., (2014) Evaluation of Vegetation Density of the Mangrove Forest in South Andaman Island Using Remote Sensing and GIS Techniques, pp. 19-25. , International Science Congress Association: India; Garcia-Haro, F.J., Gilabert, M.A., Melia, J., Linear spectral mixture modelling to estimate vegetation amount from optical spectral data (1996) Int. J. Remote Sens, 17, pp. 3373-3400; Braun, M., Martin, H., Mapping imperviousness using NDVI and linear spectral unmixing of ASTER data in the Cologne-Bonn region (Germany) (2003) Proceedings of the SPIE 10th International Symposium on Remote Sensing, , Barcelona, Spain, 8-12 September; Drake, N.A., Mackin, S., Settle, J.J., Mapping Vegetation, Soils, and Geology in Semiarid Shrublands Using Spectral Matching and Mixture Modeling of SWIR AVIRIS Imagery (1999) Remote Sens. Environ, 68, pp. 12-25; Guerschman, J.P., Scarth, P.F., McVicar, T.R., Renzullo, L.J., Malthus, T.J., Stewart, J.B., Rickards, J.E., Trevithick, R., Assessing the effects of site heterogeneity and soil properties when unmixing photosynthetic vegetation, non-photosynthetic vegetation and bare soil fractions from Landsat and MODIS data (2015) Remote Sens. Environ, 161, pp. 12-26; Stagakis, S., Vanikiotis, T., Sykioti, O., Estimating forest species abundance through linear unmixing of CHRIS/PROBA imagery (2016) ISPRS J. Photogramm. Remote Sens, 119, pp. 79-89; Liu, T., Yang, X., Mapping vegetation in an urban area with stratified classification and multiple endmember spectral mixture analysis (2013) Remote Sens. Environ, 133, pp. 251-264; Silvan-Cardenas, J.L., Wang, L., Fully Constrained Linear Spectral Unmixing: Analytic Solution Using Fuzzy Sets (2010) IEEE Trans. Geosci. Remote Sens, 48, pp. 3992-4002; Souza, C., Mapping forest degradation in the Eastern Amazon from SPOT 4 through spectral mixture models (2003) Remote Sens. Environ, 87, pp. 494-506; Ji, M., Feng, J., Subpixel measurement of mangrove canopy closure via spectral mixture analysis (2011) Front. Earth Sci, 5, pp. 130-137; Tiner, R.W., Lang, M.W., Klemas, V.V., (2015) Remote Sensing of Wetlands: Applications and Advances, , CRC Press: Boca Raton, FL, USA; Haase, D., Jänicke, C., Wellmann, T., Front and back yard green analysis with subpixel vegetation fractions from earth observation data in a city (2019) Landsc. Urban Plan, 182, pp. 44-54; Dronova, I., Object-Based Image Analysis inWetland Research: A Review (2015) Remote Sens, 7, pp. 6380-6413; Fei, S.X., Shan, C.H., Hua, G.Z., Remote Sensing of Mangrove Wetlands Identification (2011) Procedia Environ. Sci, 10, pp. 2287-2293; Heumann, B.W., Satellite remote sensing of mangrove forests: Recent advances and future opportunities (2011) Prog. Phys. Geogr, 35, pp. 87-108; Proisy, C., Couteron, P., Fromard, F., Predicting and mapping mangrove biomass from canopy grain analysis using Fourier-based textural ordination of IKONOS images (2007) Remote Sens. Environ, 109, pp. 379-392; Imbert, D., Labbé, P., Rousteau, A., Hurricane damage and forest structure in Guadeloupe, French West Indies (1996) J. Trop. Ecol, 12, pp. 663-680; Herteman, M., Fromard, F., Lambs, L., Effects of pretreated domestic wastewater supplies on leaf pigment content, photosynthesis rate and growth of mangrove trees: A field study from Mayotte Island, SW Indian Ocean (2011) Ecol. Eng, 37, pp. 1283-1291; Cremades, C., (2010) Cartographie des Habitats Naturels des Mangroves de Mayotte, , Direction de l'Agriculture et de la Forêt Service Environnement et Forêt: Mamoudzou, Mayotte; Jeanson, M., (2009) Morphodynamique du Littoral de Mayotte: des Processus au Réseau de Surveillance, , Université du Littoral Côte d'Opale: Dunkerque, France; Marchand, C., Dumas, P., (2007) Typologies et Biodiversité des Mangroves de Nouvelle-Calédonie, , IRD: Nouméa, Nouvelle-Calédonie; Glatthorn, J., Beckschäfer, P., Standardizing the Protocol for Hemispherical Photographs: Accuracy Assessment of Binarization Algorithms (2014) PLoS ONE, 9; Betbeder, J., Nabucet, J., Pottier, E., Baudry, J., Corgne, S., Hubert-Moy, L., Detection and Characterization of Hedgerows Using TerraSAR-X Imagery (2014) Remote Sens, 6, pp. 3752-3769; Betbeder, J., Hubert-Moy, L., Burel, F., Corgne, S., Baudry, J., Assessing ecological habitat structure from local to landscape scales using synthetic aperture radar (2015) Ecol. Indic, 52, pp. 545-557; Betbeder, J., Rapinel, S., Corgne, S., Pottier, E., Hubert-Moy, L., TerraSAR-X dual-pol time-series for mapping of wetland vegetation (2015) ISPRS J. Photogramm. Remote Sens, 107, pp. 90-98; (2013), Reference Book, eCognition Developer 8.9'; Trimble: Sunnyvale, CA, USA; Lobell, D.B., Asner, G.P., Law, B.E., Treuhaft, R.N., View angle effects on canopy reflectance and spectral mixture analysis of coniferous forests using AVIRIS (2002) Int. J. Remote Sens, 23, pp. 2247-2262; Viennois, G., Proisy, C., Feret, J.B., Prosperi, J., Sidik, F., Suhardjono; Rahmania, R., Longépé, N., Gaspar, P., Multitemporal Analysis of High-Spatial-Resolution Optical Satellite Imagery for Mangrove Species Mapping in Bali, Indonesia (2016) IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens, 9, pp. 3680-3686; Adler-Golden, S.M., Matthew, M.W., Bernstein, L.S., Levine, R.Y., Berk, A., Richtsmeier, S.C., Acharya, P.K., Hoke, M.L., Atmospheric Correction for Short-wave Spectral Imagery Based on MODTRAN4 (1999) Soc. Photo-Opt. Instrum. Eng, 3753, pp. 61-70; Adeline, K.R.M., Chen, M., Briottet, X., Pang, S.K., Paparoditis, N., Shadow detection in very high spatial resolution aerial images: A comparative study (2013) ISPRS J. Photogramm. Remote Sens, 80, pp. 21-38; Heinz, D.C., Fully constrained least squares linear spectral mixture analysis method for material quantification in hyperspectral imagery (2001) IEEE Trans. Geosci. Remote Sens, 39, pp. 529-545; Caliński, T., Harabasz, J., A dendrite method for cluster analysis (1974) Commun. Stat, 3, pp. 1-27; Asner, G.P., Warner, A.S., Canopy shadow in IKONOS satellite observations of tropical forests and savannas (2003) Remote Sens. Environ, 87, pp. 521-533; Dennison, P.E., Halligan, K.Q., Roberts, D.A., A comparison of error metrics and constraints for multiple endmember spectral mixture analysis and spectral angle mapper (2004) Remote Sens. Environ, 93, pp. 359-367; Kuusk, A., The Hot Spot Effect in Plant Canopy Reflectance (1991) Photon-Vegetation Interactions: Applications in Optical Remote Sensing and Plant Ecology, pp. 139-159. , Myneni, R.B., Ross, J., Eds.; Springer: Berlin/Heidelberg, Germany; Barbier, N., Proisy, C., Véga, C., Sabatier, D., Couteron, P., Bidirectional texture function of high resolution optical images of tropical forest: An approach using LiDAR hillshade simulations (2011) Remote Sens. Environ, 115, pp. 167-179; Fromard, F., Vega, C., Proisy, C., Half a century of dynamic coastal change affecting mangrove shorelines of French Guiana (2004) A case study based on remote sensing data analyses and field surveys. Mar. Geol, 208, pp. 265-280; Ozdemir, I., Linear transformation to minimize the effects of variability in understory to estimate percent tree canopy cover using RapidEye data (2014) GIS Remote Sens, 51, pp. 288-300; Proisy, C., Féret, J.B., Lauret, N., Gastellu-Etchegorry, J.P., Mangrove Forest Dynamics Using Very High Spatial Resolution Optical Remote Sensing A2-Baghdadi, Nicolas (2016) Land Surface Remote Sensing in Urban and Coastal Areas, pp. 269-295. , Zribi, M., Ed.; Elsevier: Amsterdam, The Netherlands			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	861
Permanent link to this record