Both Gila monsters and beaded lizards are categorized as Vulnerable by the IUCN. In addition, both species are listed by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) as Appendix II species, which includes those for whom trade must be controlled to avoid overexploitation. They receive full legal state protection from collecting, transport, or killing throughout their ranges. Their greatest threat is from habitat loss, due to the development of their dry forest and desert habitats, and from unscrupulous collectors. The spotty distribution of Gila monsters in the Mojave Desert of the U.S. Southwest, and rapid urban and recreational development in that region, prompted the U.S. Fish and Wildlife Service to classify Gila monsters as a high-priority species that may be vulnerable for listing as a threatened or endangered species in the near future.
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