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Updated: Jul 23, 2025

Ecotoxicological Methodologies to Evaluate Biomarkers at Different Scales in Neotropical Anurans
Published on: April 28, 2023
Environmental vulnerability evolution in the Brazilian Amazon
Nilton C Fiedler1, Ricardo M M DE Jesus1, Felipe Z Moreira1
1Universidade Federal do Espírito Santo/UFES, Departamento de Ciências Florestais e da Madeira, Avenida Governador Lindemberg, 316, 29550-000 Jerônimo Monteiro, ES, Brazil.
Environmental vulnerability in the Amazon biome increased significantly between 2001 and 2013, with a rise in "very high" risk areas. This study used remote sensing and artificial intelligence to map these changes, highlighting the urgent need for mitigation measures.
Area of Science:
- Environmental science
- Geoinformatics
- Artificial intelligence
Background:
- Environmental policies rely on understanding vulnerability to human impact.
- Geotechnology and artificial intelligence offer tools to assess environmental risk.
- The Amazon biome faces significant threats from human activities.
Purpose of the Study:
- To identify and map areas of highest vulnerability to human activities in the Amazon biome.
- To analyze the evolution of environmental vulnerability between 2001 and 2013.
- To provide data for informed decision-making and policy development.
Main Methods:
- Utilized Moderate Resolution Imaging Spectroradiometer (MODIS) Land Use and Land Cover (LULC) images from 2001 and 2013.
- Applied remote sensing techniques, Euclidean distance, Fuzzy logic, and the Analytic Hierarchy Process (AHP) method.
- Analyzed net variations in vulnerability classes to track changes over time.
Main Results:
- Observed a significant increase in areas classified as "very high" vulnerability.
- Identified a transition from "high" to "very high" risk areas, indicating escalating environmental degradation.
- Mato Grosso and Pará showed the largest extents of "very high" vulnerability, with 101,100.10 km2 and 81,010.30 km2, respectively.
Conclusions:
- Remote sensing and AI techniques effectively determine and assess the evolution of environmental vulnerability.
- Urgent implementation of mitigation measures is crucial for the Amazon biome's conservation.
- The developed methodology is adaptable for assessing environmental vulnerability globally.
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