Universidade Federal do Amazonas

Variation in apparent wood density of Tachigali vulgaris as affected by tree diameter, height, forking, and soil conditions in Amazonian plantations

Abstract Tachigali vulgaris has potential for energy purposes in the Amazon, but the relationship between several silvicultural factors and wood quality requires further investigation. This study evaluated the variation in the apparent density of T. vulgaris wood in two pure plan...

Assessing fish diversity in the Amazon: The impact of primers and reference libraries in eDNA surveys

Abstract Selecting primers for DNA amplification poses a challenge in environmental DNA (eDNA) studies, particularly in biodiverse tropical ecosystems. Researchers must balance taxonomic coverage, primer specificity, and study feasibility when choosing between a single primer pai...

Habitat insularization alters taxonomic and functional beta diversity of understorey birds in Amazonian forest islands

Abstract Habitat fragmentation can profoundly alter the composition of biological communities, modifying patterns of beta diversity among areas. These effects are manifested through different components of beta diversity: differences in richness, which reflect variation in specie...

Agribusiness and the “Matogrossization” of Rondônia (Brazilian Amazon): Monocultures, Agrarian Conflicts, and Social Change

This article analyzes the territorial reconfiguration of Rondônia at the beginning of the 21st century, emphasizing the concept of “Matogrossization” as a framework for understanding the profound socio-spatial transformations resulting from the expansion of globalized agribusines...

Trabalho infantil na Amazônia brasileira: particularidades regionais no contexto do capitalismo dependente

O projeto busca analisar as particularidades do trabalho infantil na Amazônia brasileira a partir da Teoria Marxista da Dependência, compreendendo-o como uma expressão da questão social e uma manifestação histórica e funcional das relações de produção capitalistas. Parte-se do pr...

Telephone versus in-person administration of the Early Childhood Development Index 2030: a crossover study, Brazil, Canada, India and Malawi.

Objective: To examine agreement between telephone and in-person administration of the Early Childhood Development Index 2030 (ECDI2030) survey. Methods: -tests and intraclass correlation coefficients. Findings: : -0.36), regardless of modality. However, pooled and stratified intr...