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Biology subjects

Renteria, E.

Publications and source records attributed to Renteria, E..

2 recordsLinked to original sources

Assessing Habitat Dynamics and Land-Use Patterns in the Amazon Forest Using Satellite Imagery

Tropical forests, particularly the Amazon, play a critical role in global ecosystems by providing essential services such as climate regulation, carbon sequestration, and biodiversity conservation. However, these ecosystems are increasingly threatened by deforestation and land-use changes driven by agriculture, livestock farming, and other anthropogenic activities. This study investigates habitat composition and temporal changes in Tailandia (Para-Brazil), using high-resolution satellite imagery. Data from 2013 to 2023 were analyzed across 18 research plots and a broader expanded zone to identify patterns of land-use transformation. Results reveal the dominance of Forest Formation habitats, alongside significant increases in Pastures and Oil Palm Crops. Clustering analysis highlighted ecological heterogeneity, with intact forests and heavily altered plots demonstrating varied conservation needs. Results also forecast a 13% decline in forest cover and a 32% rise in pasture areas over the next five years. The findings underscore the urgent need for targeted conservation strategies, robust environmental policies, and sustainable land-use practices. This research demonstrates the utility of remote sensing for large-scale ecological monitoring and its potential to inform effective conservation efforts.

ecology↗

Is blue the most attractive color for bees? Exploring the attractiveness of colors in vane traps

Bees play important roles in shaping ecosystems through processes like pollination. However, their populations are in decline due to habitat degradation and unsustainable agriculture. This study assesses the effectiveness of color traps for bee monitoring in two distinct yet geographically close habitats in "Jenaer Forst" natural reserve in Germany. Over a 23-week period in spring and summer 2023, we tested six trap colors (blue, yellow, white, violet, blue-yellow, and violet-white) and analyzed their performance in terms of bee abundance, diversity, and species composition. Our results indicate that violet and blue-yellow traps captured the highest bee abundance and species richness. While overall bee community composition did not differ significantly between trap colors, specific species showed color preferences. The blue-yellow trap emerged as a versatile option, potentially capturing a diverse range of species through its contrasting colors. Moreover, despite the close proximity of the two sites, differences in community composition suggest that habitat-specific factors influence bee color preferences. Minor habitat changes significantly impacted trap effectiveness, emphasizing the importance of tailored trap designs. These findings highlight the importance of considering both color contrast and habitat context when designing bee monitoring strategies and understanding bee foraging behavior. This study contributes valuable insights to improve trap designs and enhance our understanding of the interactions between bees and their environments.

zoology↗