A5025400056- Forest ecology and management
- Ecology and Vegetation Dynamics Studies
- Plant Water Relations and Carbon Dynamics
- Plant and animal studies
- Plant and soil sciences
- Tree-ring climate responses
- Remote Sensing and LiDAR Applications
- Species Distribution and Climate Change
- Remote Sensing in Agriculture
- Conservation, Biodiversity, and Resource Management
- Agroforestry and silvopastoral systems
- Forest Management and Policy
- Cocoa and Sweet Potato Agronomy
- Land Use and Ecosystem Services
- Leaf Properties and Growth Measurement
- Greenhouse Technology and Climate Control
- Wildlife Ecology and Conservation
- Scarabaeidae Beetle Taxonomy and Biogeography
University of Oxford
2017-2024
Abstract Tropical ecosystems adapted to high water availability may be highly impacted by climatic changes that increase soil and atmospheric moisture deficits. Many tropical regions are experiencing significant in conditions, which induce strong shifts taxonomic, functional phylogenetic diversity of forest communities. However, it remains unclear if what extent forests shifting these facets along gradients response climate change. Here, we show affected all three West Africa recent decades....
Abstract Tropical forests cover large areas of equatorial Africa and play a substantial role in the global carbon cycle. However, there has been lack biometric measurements to understand forests’ gross net primary productivity (GPP, NPP) their allocation. Here we present detailed field assessment budget multiple forest sites Africa, by monitoring 14 one-hectare plots along an aridity gradient Ghana, West Africa. When compared with equivalent Amazonia, studied African generally had higher...
Abstract Net Primary Productivity ( NPP ) is one of the most important parameters in describing functioning any ecosystem and yet it arguably remains a poorly quantified understood component carbon cycling tropical forests, especially outside Americas. We provide first comprehensive analysis its allocation to woody, canopy root growth components at contrasting lowland West African forests spanning rainfall gradient. Using standardized methodology study evergreen EF ), semi‐deciduous SDF dry...
Deconstructing functional trait variation and co-variation across a wide range of environmental conditions should increase the mechanistic understanding community assembly processes improve current parameterization dynamic vegetation models. Here, we present study that deconstructs leaf to iithin-species, taxonomic-interspecific, plot-environment components comparing three tropical gradients in Peru, Brazil Ghana. We measured photosynthetic, chemical structural traits using standardized...
The leaf economic spectrum (LES) describes a set of universal trade-offs between mass per area (LMA), nitrogen (N), phosphorus (P) and photosynthesis that influence patterns primary productivity nutrient cycling. Many questions regarding vegetation-climate feedbacks can be addressed with better understanding LES traits their controls. Remote sensing offers enormous potential for generating large-scale trait data. Yet so far, canopy studies have been limited to imaging spectrometers onboard...
Forest–savanna boundaries extend across large parts of the tropics but variability photosynthetic capacity in relation to soil and foliar nutrients these transition zones is poorly understood. For this reason, we compared (maximum rate carboxylation Rubisco at 25 C° (Vcmax25), leaf mass, nitrogen (N), phosphorus (P) potassium (K) per unit area (LMA, Narea, Parea Karea, respectively), respective from 89 species seven sites along forest–savanna ecotones Ghana Brazil. Contrary our expectations,...
Summary (1) The research conducted, including the rationale direct effect of aridity on photosynthetic and water-transport strategies is not easy to discern in global analyses because large-scale correlations between precipitation temperature. We analyze tree traits collected along an gradient Ghana, West Africa that shows little temperature variation, attempt disentangle thermal hydraulic influences plant traits. (2) Methods Predictions derived from optimality theory variation key are...
Abstract Tropical forests cover large areas of equatorial Africa and play a significant role in the global carbon cycle. However, there has been lack in-situ measurements to understand forests’ gross net primary productivity (GPP NPP) their allocation. Here we present first detailed field assessment budget multiple forest sites Africa, by monitoring 14 one-hectare plots along an aridity gradient Ghana. When compared with equivalent Amazonia using same measurement protocol, studied West...
<title>Abstract</title> Tropical forests dominate terrestrial photosynthesis, yet there are major contradictions in our understanding due to a lack of field studies, especially outside the tropical Americas. A recent study indicated that West African have among highest gross primary productivity (GPP) observed, contradicting models rank them lower than Amazonian forests. Here, we explore possible reasons for this data-model mismatch. We found situ GPP measurements higher multiple global...
<title>Abstract</title> Many ecophysiological theories have been proposed as universal rules to calculate plant photosynthesis given their living environment, where temperature and vapor pressure deficit (VPD) are commonly considered. Although these claim universality applied in global modeling, they often developed tested using datasets that confound VPD lack data from tropical Africa there is minimal variation. Here we confront with tree traits collected along a gradient West Africa....
2 Abstract Tropical forests cover large areas of equatorial Africa and play a significant role in the global carbon cycle. However, there has been lack in-situ measurements to understand forests’ gross net primary productivity (GPP NPP) their allocation. Here we present first detailed field assessment budget multiple forest sites Africa, by monitoring 14 one-hectare plots along an aridity gradient Ghana. When compared with equivalent Amazonia using same measurement protocol, studied West...