Project Outline:

Sun Orchids (Thelymitra spp.) are a diverse group of terrestrial orchids native to Australia that employ highly specialised and often deceptive pollination strategies. Recent experimental research suggests that some Sun Orchids may mimic the floral signals of buzz-pollinated plants, using structures such as false anthers to attract bees. This raises a broader and largely unexplored question in pollination ecology: rather than mimicking a particular plant species, could orchids exploit the visual signals and behavioural rules of an entire pollination system?

Buzz pollination is a remarkable adaptation used by some bees to release pollen from flowers. Instead of simply brushing against the flower, as honeybees commonly do when collecting pollen, these bees grip the flower and rapidly vibrate their flight muscles, creating a powerful “buzz” that shakes pollen loose from specialised anthers. This specialised interaction may therefore provide an important clue to understanding how Sun Orchids deceive their pollinators.

This project will investigate the pollination ecology and floral mimicry of Sun Orchids across the biodiversity-rich landscapes of Southwest Australia. Through field observation and high-resolution macro cinematography, the documentary will capture the fascinating interactions between orchids and their bee pollinators, exploring how bees perceive and respond to deceptive floral signals. The film will combine intimate observations of these fleeting interactions with expert interviews and landscape imagery, revealing the ecological and evolutionary story behind one of Australia’s most remarkable orchid groups.

The scientific investigation will form the basis of the documentary Chasing the Sun, which will translate the research into an engaging story about orchids, bees, perception, and the seasonal rhythms of the Southwest Australian landscape. The film will connect scientific discovery with conservation storytelling and public engagement.

The project will generate new insights into deceptive pollination and the potential role of buzz-pollination signals as templates for floral mimicry, while producing visual documentation of orchid–pollinator interactions. Through international film festivals, broadcasters, digital platforms, orchid networks, and educational outreach, Chasing the Sun will also raise awareness of the extraordinary biodiversity of Western Australia and the importance of conserving its unique orchid flora.