Ecological changes refer to alterations in the environment that affect ecosystems and the organisms within them. These changes can be caused by natural events, such as wildfires, floods, or volcanic eruptions, as well as human activities like deforestation, pollution, and urbanization. Such changes can impact biodiversity, leading to the loss of species and altering habitats. Additionally, ecological changes can influence climate patterns and resource availability. For example, the melting of polar ice due to global warming affects sea levels and marine ecosystems. Understanding these changes is crucial for conservation efforts and maintaining ecological balance.