A5041377903- Ecology and Vegetation Dynamics Studies
- Species Distribution and Climate Change
- Plant and animal studies
- Conservation, Biodiversity, and Resource Management
- Forest ecology and management
- Urban Green Space and Health
- Urban Heat Island Mitigation
- Remote Sensing in Agriculture
- Fire effects on ecosystems
- Lepidoptera: Biology and Taxonomy
- Remote Sensing and LiDAR Applications
- Plant Water Relations and Carbon Dynamics
- Leaf Properties and Growth Measurement
- Forest Management and Policy
Université du Québec à Montréal
2020-2025
Forest Research
2024
Universidad Nacional de Colombia
2020-2023
Due to global warming, many species will face greater risks of thermal stress, which can lead changes performance, abundance and/or geographic distributions. In plants, high temperatures above a species-specific critical maximum permanently damage photosystem II, leading decreased electron transport rates, photosynthetic failure, and eventual leaf plant death. Previous studies have shown that tolerances vary with latitude, but little is known about how they change across smaller-scale...
It is largely unknown how South America's Andean forests affect the global carbon cycle, and thus regulate climate change. Here, we measure aboveground dynamics over past two decades in 119 monitoring plots spanning a range of >3000 m elevation across subtropical tropical Andes. Our results show that act as strong sinks for (0.67 ± 0.08 Mg C ha-1 y-1) have high potential to serve future refuges. Aboveground are driven by abiotic biotic factors, such size-dependent mortality trees. The...
Abstract Wood density is a critical control on tree biomass, so poor understanding of its spatial variation can lead to large and systematic errors in forest biomass estimates carbon maps. The need understand how why wood varies especially tropical America where forests have exceptional species diversity turnover composition. As identity composition are challenging estimate remotely, ground surveys essential know the trees, whether measured directly or inferred from their identity. Here, we...
Andean forests are home to a strikingly high diversity of plants, making it difficult understand the main drivers species assembly. Trait-based approaches, however, help overcome some challenges associated with taxonomic complexity, providing insights into coexistence. Here, we evaluated roles climate, soil fertility, and symbiotic root associations on shaping assembly six plant functional traits (leaf area, specific leaf dry matter content, thickness, toughness, wood density) along an...
Abstract Aim Andean forests are a global biodiversity hotspot. They harbour many species living within narrow climate ranges and high functional diversity of trees. It remains still unclear how such hotspots respond to climatic changes over time. We investigated whether changing their composition time along an elevational gradient by assessing in composition, abundance traits. Location An Colombia's northern Andes. Time Period Species were studied two four times from 2006 2017, 2016 2017....
Abstract Background Species turnover (β-diversity) along elevational gradients is one of the most important concepts in plant ecology. However, there a lack consensus about main driving mechanisms tree β-diversity at local scales very diverse ecosystems (e.g., Andean mountains), as well how sampling effect can alter estimations. Recently, it has been hypothesized that patterns change are driven by effects stemming from differences size species pool rather than underlying community assembly...
Urban Heat Islands (UHI) are a common phenomenon in metropolitan areas worldwide where the air temperature is significantly higher urban than surrounding suburban, rural or natural areas. Mitigation strategies to counteract UHI effects include increasing tree cover and green spaces reduce heat. The successful application of these approaches necessitates deep understanding thermal tolerances trees their susceptibility elevated temperatures. We evaluated how photosynthetic optimum (Topt), heat...