University of Cundinamarca

The first annotated checklist of the bees of Colombia reveals an overlooked diversity and areas with major data deficiencies

Background Most existing knowledge about bee biodiversity comes from temperate regions, where diversity is presumed highest—yet substantial data gaps across the tropics confound this pattern. Checklists are critical for documenting species presence, identifying knowledge gaps, an...

Do Bio-Inoculants Improve Composting Under Field Conditions? Comparative Study of Homemade, Commercial, and Laboratory-Developed Bio-Inoculants

Microbial bio-inoculants have been proposed to enhance composting efficiency; however, relatively few studies have evaluated their effectiveness under real operating conditions. This study evaluated three bio-inoculant application protocols, including an artisanal inoculant, a co...

Why Was the Wheel (Not) Used in the Andes? A Hypothesis Explaining the Slow Adoption of Wagon Transport and Evidence from Nineteenth-Century Colombia

The slow adoption of wagon transport in the Andes is a puzzle. We examine it by developing a threshold technology-adoption model calibrated using human and mule energy consumption and unique historical data from a human trail and the first wagon road in the Andes. Model predictio...