While overpopulation can contribute to environmental problems, it is not a direct threat to biodiversity in the same way that habitat destruction, climate change, and pollution are.

Conservation biology is the scientific study of the causes and consequences of biodiversity loss, and the development of strategies to protect and restore biodiversity.

While educating the public about environmental issues is important, it is not a key strategy for conserving biodiversity in the same way that protecting and restoring natural habitats, reducing pollution, and promoting sustainable development are.

Ecological restoration is the process of assisting the recovery of an ecosystem that has been degraded, damaged, or destroyed.

While conserving biodiversity can have economic benefits, it is not the primary goal of conservation biology.

Introduced species are species that have been introduced to an area where they are not native, either intentionally or unintentionally.

Nature reserves are not a type of protected area, but rather a type of land management that aims to protect natural ecosystems.

Mitigation is the process of reducing the impact of human activities on the environment, such as by reducing greenhouse gas emissions or protecting natural habitats.

While lack of public awareness can be a challenge to conservation efforts, it is not a key challenge in the same way that habitat loss and fragmentation, climate change, and pollution are.

Sustainable development is the process of managing natural resources in a way that meets the needs of the present without compromising the ability of future generations to meet their own needs.

While promoting economic growth can be a component of sustainable development, it is not a key strategy in the same way that reducing inequality, protecting and restoring natural ecosystems, and investing in education and healthcare are.

Adaptation is the process of adapting to the impacts of climate change, such as by building sea walls to protect coastal communities from rising sea levels.

While lack of scientific understanding can be a challenge to adapting to climate change, it is not a key challenge in the same way that lack of funding, lack of political will, and lack of public awareness are.

Resilience is the ability of an ecosystem to withstand and recover from disturbances, such as natural disasters or human activities.

While investing in education and healthcare can be a component of building resilience to climate change, it is not a key strategy in the same way that investing in infrastructure, protecting and restoring natural ecosystems, and promoting sustainable agriculture are.