Climate drives global plant-pollinator specialization patterns

A global study published in Nature Ecology & Evolution has revealed that climate is the primary driver determining pollination patterns, challenging the traditional belief that specialization increases strictly with proximity to the equator.

By analyzing over 110,000 interactions across 3,415 networks involving 6,126 plant species and 5,343 pollinators, researchers found that temperature and precipitation explain specialization patterns more effectively than latitude, biodiversity, or environmental productivity. The study noted that network-scale specialization generally decreases as mean annual temperatures rise.

While pollinators showed a broad maximum of specialization in low northern latitudes near the tropical-subtropical boundary, plant patterns varied by hemisphere. The findings suggest that rising temperatures and shifting rainfall patterns could redraw the maps and timing of plant-pollinator encounters, potentially impacting global agricultural production.