Thursday, 18 March 2021, 9:06 am A study of invasive wasps on an island off the coast of Coromandel Peninsula shows they are able to share resources such as food and habitat instead of competing with each other, a worrying result for conservation. Introduced social wasps are a major problem in New Zealand, competing for food and preying on native species. They are a particular problem in South Island beech forests where they eat large amounts of honeydew which would otherwise be available for birds, bats, insects and lizards. Introduced wasps are widespread throughout New Zealand, with earli...