text: addition, a draft species catalogue has been drawn up to lay the basis for Mexico to adhere to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). Progress has also been made in controlling the illegal traffic in species; 21,000 confiscations were carried out in the period 1983-1987.E/1986/3/Add.l3 page 57
analysis: The text discusses the conservation of endangered species, confiscations of illegal wildlife trade, and the preparation of a species catalogue for Mexico to adhere to the CITES convention. This suggests that the text is related to environmental and conservation issues, which are often linked to natural resources.