HABITATS Log is part of the Vestre Habitats series, where the products are designed to protect and increase biodiversity in cities. The Log bench makes it possible to frame and arrange logs and branches in an organised stack so that you can sit on the bench and watch the slow decomposition process.Old trees are vital for conserving biodiversity, as they are home to many rare species of insects, fungi, lichen, mosses and plants. Many birds and bats need hollow trees to nest and reproduce in, and birds also need resting places.