Flávia R. C. Costa
A5018078105- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Species Distribution and Climate Change
- Conservation, Biodiversity, and Resource Management
- Forest ecology and management
- Plant Diversity and Evolution
- Plant Water Relations and Carbon Dynamics
- Wildlife Ecology and Conservation
- Amazonian Archaeology and Ethnohistory
- Tree-ring climate responses
- Remote Sensing in Agriculture
- Soil erosion and sediment transport
- African Botany and Ecology Studies
- Fern and Epiphyte Biology
- Indigenous Health and Education
- Hydrology and Watershed Management Studies
- Environmental and biological studies
- Fish biology, ecology, and behavior
- Geography and Environmental Studies
- Wildlife-Road Interactions and Conservation
- Remote Sensing and LiDAR Applications
- Spectroscopy and Chemometric Analyses
- Amphibian and Reptile Biology
- Pleistocene-Era Hominins and Archaeology
- Essential Oils and Antimicrobial Activity
National Institute of Amazonian Research
2016-2025
Amazon (United States)
2021
National University of Tucumán
2021
Consejo Nacional de Investigaciones Científicas y Técnicas
2017-2021
Universidad Nacional de San Martín
2020
University of Buenos Aires
2012-2020
Universidade Federal do Amazonas
2018
Ferrer Grupo (Spain)
2018
Diplomatique
2017
Universidade Federal do Rio de Janeiro
2013
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....
Abstract Aim Tropical forests store 25% of global carbon and harbour 96% the world's tree species, but it is not clear whether this high biodiversity matters for storage. Few studies have teased apart relative importance forest attributes environmental drivers ecosystem functioning, no such study exists tropics. Location Neotropics. Methods We relate aboveground biomass ( AGB ) to (diversity structure) (annual rainfall soil fertility) using data from 144,000 trees, 2050 plots 59 sites. The...
Our objectives were to develop a method that would be appropriate for long-term ecological studies, but permit rapid surveys evaluate biotic complementarity and land-use planning in Amazonia. The Amazon basin covers about 7 million km². Therefore, even sparse coverage, with one sample site per 10.000 km², require 700 sampling sites. Financial considerations limit the number of sites investment at each site, incomplete coverage makes evaluation difficult or impossible (Reddy & Dávalos...
The accurate mapping of forest carbon stocks is essential for understanding the global cycle, assessing emissions from deforestation, and rational land-use planning. Remote sensing (RS) currently key tool this purpose, but RS does not estimate vegetation biomass directly, thus may miss significant spatial variations in structure. We test stated accuracy pantropical maps using a large independent field dataset.Tropical forests Amazon basin. permanent archive plot data can be accessed at:...
Thermal sensitivity of tropical trees A key uncertainty in climate change models is the thermal forests and how this value might influence carbon fluxes. Sullivan et al. measured stocks fluxes permanent forest plots distributed globally. This synthesis plot networks across climatic biogeographic gradients shows that dominated by high daytime temperatures. extreme condition depresses growth rates shortens time resides ecosystem killing under hot, dry conditions. The effect temperature worse...
Abstract While Amazonian forests are extraordinarily diverse, the abundance of trees is skewed strongly towards relatively few ‘hyperdominant’ species. In addition to their diversity, a key component global carbon cycle, assimilating and storing more than any other ecosystem on Earth. Here we ask, using unique data set 530 forest plots, if functions producing woody concentrated in small number tree species, whether most abundant species also dominate cycling, dominant characterized by...
For millennia, Amazonian peoples have managed forest resources, modifying the natural environment in subtle and persistent ways. Legacies of past human occupation are striking near archaeological sites, yet we still lack a clear picture how management practices resulted domestication forests. The general view is that domesticated forests recognizable by presence patches dominated one or few useful species favored long-term activities. Here, used three complementary approaches to understand...
Abstract Tropical forest structural variation across heterogeneous landscapes may control above‐ground carbon dynamics. We tested the hypothesis that canopy structure (leaf area and light availability) – remotely estimated from LiDAR in coarse wood production (biomass growth). Using a statistical model, these factors predicted biomass growth tree size classes near Manaus, Brazil. The same with no parameterisation change but driven by different observed structure, higher productivity of site...
Summary Species distribution is strongly driven by local and global gradients in water availability but the underlying mechanisms are not clear. Vulnerability to xylem embolism (P 50 ) a key trait that indicates how species cope with drought might explain plant patterns across environmental gradients. Here we address its role on sorting along hydro‐topographical gradient central Amazonian rainforest examine variance at community scale. We measured P for 28 tree species, soil properties...
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...
Biodiversity loss is one of the main challenges our time,1,2 and attempts to address it require a clear understanding how ecological communities respond environmental change across time space.3,4 While increasing availability global databases on has advanced knowledge biodiversity sensitivity changes,5,6,7 vast areas tropics remain understudied.8,9,10,11 In American tropics, Amazonia stands out as world's most diverse rainforest primary source Neotropical biodiversity,12 but remains among...
Abstract The tropical forest carbon sink is known to be drought sensitive, but it unclear which forests are the most vulnerable extreme events. Forests with hotter and drier baseline conditions may protected by prior adaptation, or more because they operate closer physiological limits. Here we report that in South American climates experienced greatest impacts of 2015–2016 El Niño, indicating greater vulnerability temperatures drought. long-term, ground-measured tree-by-tree responses 123...
Trees structure the Earth's most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response environmental change, as very little is known about species. A focus on common may circumvent this challenge. Here we investigate abundance patterns using inventory data 1,003,805 trees with trunk diameters at least 10 cm across 1,568 locations
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....
Summary Many authors have suggested that topography and soils are the major determinants of species distributions community patterns at small or regional scales, but few studies addressed mesoscales. We used Reserva Ducke (100 km 2 ) as a model to analyse effects soil, watersheds on variation herb composition, determine relative importance environmental factors composition. Taxonomic groups frequently surrogates in biodiversity distribution complementarity, their efficacy is controversial....
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...
Background: Plant composition changes with topography and edaphic gradients that correlate soil-water nutrient availability. Data on soil water for the Amazon Basin are scarce, limiting possibility of distinguishing between influences plant composition. Aim: We tested a new proxy table depth, terrain height above nearest drainage (HAND), as predictor in trees, lianas, palms, shrubs, herbs compared HAND to conventional measures sea level (HASL) horizontal distances from (HDND). Methods:...
Abstract. The seasonal climate drivers of the carbon cycle in tropical forests remain poorly known, although these account for more assimilation and storage than any other terrestrial ecosystem. Based on a unique combination pan-tropical data sets from 89 experimental sites (68 include aboveground wood productivity measurements 35 litter measurements), their associated canopy photosynthetic capacity (enhanced vegetation index, EVI) climate, we ask how allocation are related to seasonality...
The functional trait approach has, as a central tenet, that plant traits are and shape individual performance, but this has rarely been tested in the field. Here, we individual-based hyperdiverse Amazonian tropical rainforest evaluated intraspecific variation values, strategies at level, whether predict performance. We > 1300 tree saplings belonging to 383 species, measured 25 related growth defense, effects of environmental conditions, size, on stem growth. A total 44% was observed within...
Abstract Aim To evaluate the relative importance of climatic versus soil data when predicting species distributions for Amazonian plants and to gain understanding potential range shifts under climate change. Location Amazon rain forest. Methods We produced distribution models ( SDM ) at 5‐km spatial resolution 42 plant (trees, palms, lianas, monocot herbs ferns) using occurrence from herbarium records plot‐based inventories. modelled with Bayesian logistic regression either only, only or...
Species distributions and assemblage composition may be the result of trait selection through environmental filters. Here, we ask whether filtering species at local scale could attributed to their hydraulic architectural traits, revealing basis hydrological microhabitat partitioning in a Central Amazonian forest. We analyzed characteristics tissue (anatomical wood specific gravity (WSG)), organ (leaf area, leaf area (SLA), : sapwood ratio) whole-plant (height) levels for 28 pairs congeneric...