Fungal conservation is the process of recognising, cataloging, and advocating for the conservation of fungi. Cataloging and identifying fungi can take the form of collecting mushrooms from the environment or genetic sequencing from soils or tissue samples. Conservation may involve natural habitat protection in places where fungi and their associated plants live. Frameworks are also needed, meaning formal efforts to recognise and include fungi in international conservation policy and agreements. Documenting global principles of fungal conservation was made a priority in the 2007 Fungi of the Earth Declaration of Cordoba. Cataloging species helps scientists estimate the global number of fungal species. The current estimate is 2-3 million fungal species globally.