Guaiacwood is a large, slow-growing tree that is endemic in the Gran Chaco region of Argentina, Bolivia, Brazil, and Paraguay. Part of this region – the Dry Chaco, which covers parts of Argentina, Bolivia, and Paraguay – is characterised by a history of land-use change from forested areas to pastureland and cropland with Paraguay seeing the highest historical rate of land-use change out of the three countries. Paraguayan populations of Guaiacwood are fragmented and are fragmented, yet stable.
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