There are several reasons for the decline trees for koalas: Deforestation: Clearing land for development, agriculture and logging has caused the loss of extensive areas of eucalyptus forest. Climate change: Climate related events such as droughts, heat waves, and bushfires regularly damage and destroy eucalyptus forests. Climate can also affect the distribution of eucalyptus trees, making some areas less suitable for koala populations. Disease and pests: Diseases and pests can damage eucalyptus trees, reducing their ability to give koalas the food and shelter they need. For example, the eucalyptus long-horned borer, an insect pest, can cause significant damage to eucalyptus trees. Invasive species: Invasive plant species can out-compete native eucalyptus trees for resources, such as water, sunlight, and nutrients. This competition can affect eucalyptus tree populations. Fragmentation: Land development often leads to habitat fragmentation, where eucalyptus forests can become isolated from one another. This can affect tree quality and quantity, as well as limit the movement and genetic diversity of koalas.To address these challenges, Friends of the Koala conservation efforts focus on protecting and restoring koala habitat, advocating for sustainable land management practices, and raising awareness about the importance of koala habitat. By adopting a tree, you can contribute to these efforts and help ensure a future for koalas and their habitats.