2009
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The aerial laser scanning (ALS) dataset, acquired between 8 and 9 April 2009, covers five plots of Crique Plomb and Montagne Plomb area in French Guiana. In this area. the forest presents contrasting and diversified characteristics: high forest, forest grown on ferricrust, and superficial saprolit with high density of stem per hectare. Ground echoes are available as well as a digital terrain model (DTM), a digital surface model (DSM), a digital canopy model (DCM) with a 1 meter resolution and a triangulated irregular network (TIN) digital terrain model with a precision of 5 meters.
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The site Aimara is composed of four 3km-transects (20m wide). 4568 trees with dbh>=20cm have been recorded by Office national des forêts (ONF). Fauna inventories have been made by Office national de la chasse et de la faune sauvage (ONCFS) few days after. 534 under-storey plants have been recorded on 21 25m²-plots by Institut de recherche pour le développement (IRD). Soils have been described using 19 samples (1.20m depth max.). Laboratory analysis are available for one soil-profile.
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The image is available for free on the USGS Glovis website.
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The general objective of the works led by the laboratory Biology of the Interactions is to contribute to the understanding of mechanisms at the origin of and which underlie the biodiversity through the study of the interactions between species. These interactions between species represent one of the important dimensions of the biodiversity because they establish the mechanisms which bind the elements of the biodiversity between them. This laboratory is situated on the Agronomic Campus of Kourou, French Guiana, within the buildings INRA of the UMR EcoFoG. Our research activities concern community assembly rules and the ecological adaptation and the plasticity of species traits in answer to the variations and to the constraints of their biotic and abiotic environment. These works lean largely on field studies in an integrative approach associating chemical, behavioral, molecular ecology and functional perspectives. The privileged models of study are leaf litter ants and the networks of mutualist interactions between insects, plants and microorganisms, such as associations between ants, plants and fungi and the trophic aquatic networks of phytotelmes. The interactions of predation and competition are also studied, with ants as main model, through the quantification of the functional processes in which these organisms are involved and of the biochemical and structural characterization of venoms, in a fundamental and applied perspective. This lab possesses: • Binocular loupes (Leica : S8APO (x2), S6T, MZ75, M80 - Wild : M5) with cold-light source (col de cygne), acquired in 2010, they allow the observation of samples of small sizes, with progressive zoom (7,5x à 60x) with a maximal height de 7,5 cm (for S8APO). Object field from 3 cm to 3 mm, according to the zoom level. • Microscope Olympus BX51, acquired in 2010, 4x, 10x, 20x, 40x, 100x. • A macroscope Leica Z16 APO (fully apochromatic zoom system for high contrast, high-resolution, detailed analysis) installed on a single beam path providing 2D images and ensuring parallax-free imaging. The lab uses 0.5x, 1x and 2x objectives, allowing a maximum magnification of 230x and a digital camera DFC450 (max resolution : 2560x1920). • Lyophiliser Alpha 1-2 LD, acquired in 2010. • Heating chamber, acquired in 2013, to maintain samples between 30 and 80°C. • Extractor hood (Sorbone), acquired in 2012, to manipulate toxic products.
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Guyadiv is a network of permanent forest plots installed in French Guiana. The site of Montagne des Chevaux is composed of 3 plots : one 1ha-plot, one 125x100m-plot, one 120x131m-plot. A complete inventory of the trees has been made in 2009. 2161 trees with dbh>=10cm have been registrated, 699 species have been identified in the first plot, 656 in the second plot and 757 in the third plot. 98.9%, 97% and 97.3% of the inventoried trees have been determined to the species level. We only have the point coordinates and not the precise demarcation of the sample plots. In order to calculate the bounding box for these plots, we have expanded the point location 300 meters in each direction.
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The site Toponowini is composed of four 3km-transects (20m wide). 4603 trees with dbh>=20cm have been recorded by Office national des forêts (ONF). Fauna inventories have been made by Office national de la chasse et de la faune sauvage (ONCFS) few days after. 506 under-storey plants have been recorded on 20 25m²-plots by Institut de recherche pour le développement (IRD). Soils have been described using 23 samples (1.20m depth max.). Laboratory analysis are available for two soil-profile.
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Guyadiv is a network of permanent forest plots installed in French Guiana. The site of Eperon Barré is composed of two plots : one 1ha-plot and one 100x200m-plot. A complete inventory has been made in 2009 and 952 trees with dbh>=10cm have been registrated. 535 and 405 species have been identified in the two plots. 99,1% and 98,3% of the registrated trees have been identified to the species level. We only have the point coordinates and not the precise demarcation of the sample plots. In order to calculate the bounding box for these plots, we have expanded the point location 500 meters in each direction.
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The aerial laser scanning (ALS) dataset, acquired on 20 October 2009, covers the experimental station Paracou in French Guiyana. More precisely, the dataset covers 9 plots totally (Paracou 4, Paracou 5, Paracou 7, Paracou 8, Paracou 9 - Paracou 12, and Paracou 14) and 4 plots partly (Paracou 3, Paracou 6, Paracou 13, and Paracou 15). The area includes exploited and non-exploited forest and Pinot palm.
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The aerial laser scanning (ALS) dataset, acquired on 11 September 2009, covers the experimental station Paracou in French Guiana. More precisely, the dataset covers 9 plots totally (Paracou 4, Paracou 5, Paracou 7, Paracou 8, Paracou 9 - Paracou 12, and Paracou 14) and 4 plots partly (Paracou 3, Paracou 6, Paracou 13, and Paracou 15). The area includes logged-over and unlogged forest, various forest heights and Pinot palm swamp forest .
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The aerial laser scanning (ALS) dataset, acquired on 7 April 2009, covers two seperate areas along the track leading to St Elie in French Guiana. The northern plot has an area of 4.5 sq.km. This area covers the 100 hectares IRD-biodiversity plot. The southern area (1.4 sq.km) covers a grove of Spirotropis longifolia. The Lidar data was acquired as part of the Guyafor project. It was shared with the ESA Tropisar project and the Biomass project at Jet Propulsion Laboratory (JPL).