The BBC Gardeners’ question time event at Ness Botanical Gardens on the 16th of September was a great avenue for Researchers from the Department for Evolution, Ecology and Behaviour to showcase how the nature of gardens is underpinned by ecology and evolution.
Gardens are much more than the plants they contain. Georgia Drew, Jo Griffin & Louise Reynolds introduced visitors to the fascinating world of bees, butterflies, fruit flies and the ecosystem of microbial symbionts that these organisms host. Visitors were fascinated and horrified, in equal measure, at the case of male-killing bacteria in a population of tropical butterflies. Many were eager to know the potential applications of such information, including the fascinating role of symbionts in the control of aphid and other plant pest populations. Jo talked to the BBC producers about the use of symbionts in the prevention of insect-borne disease.
Meanwhile, Franziska Brunner, Stew Plaistow & David Atkinson gave tours around their newly-renovated experimental ponds at Ness, and introduced visitors to their work on climate change impacts on aquatic ecosystems and pond life. Many were very impressed by the experimental ponds, and the logistics and methods needed to carry out this kind of study. The group’s pond-dipping tour gave visitors a chance to reconnect with their “inner child”, and come face-to-face with the incredible biodiversity concealed just beneath the surface of the garden pond. Catching sticklebacks turned out to be a major attraction during these pond-dipping sessions!
Last but not least, visitors attended guided tours of an ongoing long-term experiment investigating how grassland plants cope with climate change, given by Raj Whitlock, Christoph Hahn, Di Yang, and George Airey. Visitors learned of the vital importance of grasslands for conservation and for providing crucial services to people, and of the threats posed to grasslands by climate change. The tour introduced a large drought manipulation experiment comprising 1,952 model grasslands, which assessed the potential for climate-driven evolution within plant species. After some hands-on botanical training, almost all of the visitors were able to identify all of the plant species in this experiment (although there were none keen enough to taste the delicious salad burnet [Sanguisorba minor] or sweet vernal grass [Anthoxanthum odoratum] on offer).
All of us were impressed by the depth of questions that visitors asked, and by their enthusiasm for the underpinning science. It was a rewarding day, and we are looking forward to our next visit to Ness!