Daniel Sabatier
A5063264051- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- African Botany and Ecology Studies
- Plant Diversity and Evolution
- Conservation, Biodiversity, and Resource Management
- Species Distribution and Climate Change
- Agriculture and Rural Development Research
- Forest ecology and management
- Wildlife Ecology and Conservation
- Remote Sensing and LiDAR Applications
- Remote Sensing in Agriculture
- French Urban and Social Studies
- Sugarcane Cultivation and Processing
- Natural Products and Biological Research
- Amazonian Archaeology and Ethnohistory
- Primate Behavior and Ecology
- Plant and Fungal Species Descriptions
- Forest Ecology and Biodiversity Studies
- Mediterranean and Iberian flora and fauna
- Genetic diversity and population structure
- Insect Utilization and Effects
- Evolution and Paleontology Studies
- Biofuel production and bioconversion
- Legume Nitrogen Fixing Symbiosis
- Cocoa and Sweet Potato Agronomy
UMR Botanique et Modélisation de l’Architecture des Plantes et des végétations
2016-2025
Institut de Recherche pour le Développement
2016-2025
Université de Montpellier
2017-2025
Centre National de la Recherche Scientifique
2012-2025
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2014-2025
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2025
Zimmer Biomet (France)
2023-2024
Agropolis International
1997-2021
University of French Guiana
2011-2020
Observatoire des Sciences de l'Univers de la Réunion
2012-2014
The vast extent of the Amazon Basin has historically restricted study its tree communities to local and regional scales. Here, we provide empirical data on commonness, rarity, richness lowland species across entire Guiana Shield (Amazonia), collected in 1170 plots all major forest types. Extrapolations suggest that Amazonia harbors roughly 16,000 species, which just 227 (1.4%) account for half trees. Most these are habitat specialists only dominant one or two regions basin. We discuss some...
The extent to which pre-Columbian societies altered Amazonian landscapes is hotly debated. We performed a basin-wide analysis of impacts on forests by overlaying known archaeological sites in Amazonia with the distributions and abundances 85 woody species domesticated peoples. Domesticated are five times more likely than nondomesticated be hyperdominant. Across basin, relative abundance richness increase around sites. In southwestern eastern Amazonia, distance strongly influences species....
The "intermediate disturbance hypothesis," which postulates maximum diversity at intermediate regimes of disturbance, has never been clearly proved to apply species-rich tropical forest tree communities and local-scale canopy disturbances that modify light environments. This hypothesis was tested on a sample 17,000 trees in Guianan forest, 10 years after silvicultural experiment added natural treefall gaps wide range intensities. Species richness, standardized eliminate density effects,...
Summary 1. Niche theory proposes that species differences underlie both coexistence within communities and the differentiation in composition among via limiting similarity environmental filtering. However, it has been difficult to extend niche species‐rich because of empirical challenge quantifying niches for many species. This motivated development functional phylogeny‐based approaches community ecology, which represent two different means approximating attributes. 2. Here, we assess...
Amazonia is the most biodiverse rainforest on Earth, and debate over how many tree species grow there remains contentious. Here we provide a checklist of all collected to date, describe spatial temporal trends in data accumulation. We report 530,025 unique collections trees Amazonia, dating between 1707 2015, for total 11,676 1225 genera 140 families. These figures support recent estimates 16,000 Amazonian based ecological plot from Tree Diversity Network. Botanical collection characterized...
Estimates of extinction risk for Amazonian plant and animal species are rare not often incorporated into land-use policy conservation planning. We overlay spatial distribution models with historical projected deforestation to show that at least 36% up 57% all tree likely qualify as globally threatened under International Union Conservation Nature (IUCN) Red List criteria. If confirmed, these results would increase the number on Earth by 22%. trends observed in Amazonia apply trees throughout...
A large number of newly published and unpublished hectare plots in Amazonia the Guiana Shield area allow an analysis family composition testing hypotheses concerning alpha-diversity south American rain forest. Using data from 94 family-level floristic patterns wet tropical South America are described. To test diversity patterns, 268 used this area. Contrary to a widely held belief, western Amazonian not necessarily most diverse. Several central have equal or even higher tree diversity....
Abstract Species distribution models (SDMs) are widely used in ecology and conservation. Presence-only SDMs such as MaxEnt frequently use natural history collections (NHCs) occurrence data, given their huge numbers accessibility. NHCs often spatially biased which may generate inaccuracies SDMs. Here, we test how the of predictions relates to a spatial abundance model, based on large plot dataset for Amazonian tree species, using inverse distance weighting (IDW). We also propose new pipeline...
Summary 1. Considerable debate surrounds the extent to which tropical forests can be managed for resource extraction while conserving biodiversity and ecosystem properties, depend on functional composition. Here we evaluate compatibility of these aims by examining effects logging taxonomic diversity composition in a forest. 2. Twenty years after selective logging, inventoried 4140 stems regenerating gaps adjacent undisturbed areas, integrated database 13 traits describing leaf wood economics...
Characterizing the trophic relationships between large herbivores and outstanding plant diversity in rainforest is a major challenge because of their elusiveness. This crucial to understand role these functioning ecosystems. We tested non-invasive approach based on high-throughput sequencing environmental samples using small plastid sequences (the trnL P6 loop) ribosomal ITS1 primers, referred as DNA metabarcoding, investigate diet largest neotropical herbivore, lowland tapir. Sequencing was...
To provide an empirical foundation for estimates of the Amazonian tree diversity, we recently published a checklist 11,675 species recorded to date in region (ter Steege H, et al. (2016) The discovery flora with updated all known taxa. Scientific Reports 6:29549). From this total plant records compiled from public databases and literature, widely used studies on only 6,727 belong first taxonomically-vetted (Cardoso D, (2017) Amazon diversity revealed by taxonomically verified list. PNAS...
Indigenous societies are known to have occupied the Amazon basin for more than 12,000 years, but scale of their influence on Amazonian forests remains uncertain. We report discovery, using LIDAR (light detection and ranging) information from across basin, 24 previously undetected pre-Columbian earthworks beneath forest canopy. Modeled distribution abundance large-scale archaeological sites Amazonia suggest that between 10,272 23,648 remain be discovered most will found in southwest. also...
Abstract Amazonia’s floodplain system is the largest and most biodiverse on Earth. Although forests are crucial to ecological integrity of floodplains, our understanding their species composition how this may differ from surrounding forest types still far too limited, particularly as changing inundation regimes begin reshape tree communities critical ecosystem functions they underpin. Here we address gap by taking a spatially explicit look at Amazonia-wide patterns tree-species turnover...
Plants cope with the environment by displaying large phenotypic variation. Two spectra of global plant form and function have been identified: a size spectrum from small to tall species increasing stem tissue density, leaf size, seed mass; economics reflecting slow fast returns on investments in nutrients carbon. When assemble communities it is assumed that these are filtered produce community level functional composition. It unknown what main drivers for composition area such as Amazonia....
The three most important primates of French Guiana are frugivorous species, but to different degrees. Ateles paniscus is almost exclusively frugivorous, Alouatta seniculus frugivorous‐folivorous, and Cehus apellu partially insectivorous; thus, the overall specific diet spectra arc well separated. During season when fruit production minimal, intake by all species also minimal which results in greatest diversities lowest overlaps. Real competition for common main food category, i.e. fruits,...
A new species of Terminalia L. (Combretaceae) from the Guiana shield is described as T. carinata Sabatier & J.Engel, sp. nov. based on morphological evidences. This was often misidentified guyanensis Eichler which it differs, well other neotropical Terminalia, by its leaf undersurface palish-gray and slightly pubescent, quite long petioles fruits with two wings wider than body that distinctly keeled one face flat other. An updated description provided conservation status evaluated according...
Abstract Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such “monodominant” from all of main tropical regions. For Amazonia, we sampled occurrence monodominance massive, basin-wide database forest-inventory plots Amazon Tree Diversity Network (ATDN). Utilizing simple defining metric at least half trees ≥ 10 cm diameter belonging to one species, found only few occurrences and phenomenon was not...
Abstract Aim Amazonia hosts more tree species from numerous evolutionary lineages, both young and ancient, than any other biogeographic region. Previous studies have shown that lineages colonized multiple edaphic environments dispersed widely across Amazonia, leading to a hypothesis, which we test, should not be strongly associated with either geographic regions or forest types. Location Amazonia. Taxon Angiosperms (Magnoliids; Monocots; Eudicots). Methods Data for the abundance of 5082 in...
The diets of the two Amazonian brocket deer (the red Mazama americana and grey gouazoubira) were studied in French Guiana through examination stomach contents. species are mainly frugivore^granivores, even during annual period fruit scarcity (56% diet brockets 68% brockets). Both rely heavily on fruits seeds, but overcome fall availability by eating significant quantities fibres, leaves flowers, particularly brocket. Seasonal variation quantity consumed was observed only for gravid females,...