Pollinators play a critical role in maintaining agricultural productivity and ecosystem stability, contributing to the reproduction of over 75% of global food crops. However, climate change is increasingly threatening pollinator diversity through alterations in temperature, precipitation, and flowering phenology. This research investigates the relationship between climate variability, pollinator abundance, and crop yield across different agricultural landscapes. Field observations and climatic data were collected over three consecutive growing seasons to assess changes in pollinator populations and their impact on the productivity of pollination-dependent crops such as sunflower, rapeseed, and fruit trees. Results indicate a significant decline in pollinator abundance—particularly among native bee and butterfly species—in regions experiencing higher temperature anomalies and reduced floral availability. Shifts in flowering time led to a mismatch between crop bloom and pollinator activity, resulting in decreased pollination efficiency and yield reduction by up to 25% in highly dependent crops. Additionally, the loss of habitat and the increased use of pesticides exacerbated the negative effects of climatic stress. The findings highlight the urgent need to implement adaptive strategies such as habitat restoration, diversification of flowering plants, and climate-resilient agricultural practices to protect pollinator communities. Strengthening pollinator conservation under changing climatic conditions is essential for sustaining food security, biodiversity, and ecosystem resilience.

Climate change; pollinator diversity; crop productivity; pollination efficiency; biodiversity loss; flowering phenology; bees;

biology

Presentation: poster