GeckoWatch is a community science project to map the fine-scale distribution of nonnative geckos in the United States. The primary interest is in mapping the rapidly increasing range of the Mediterranean House Gecko, Hemidactylus turcicus. However, we are interested in all nonnative gecko species.

There are at least 18 species of nonnative geckos that have established populations in the United States. Seven species are established only in Florida, and four are established only in Hawaii. The remaining seven species are found in multiple states. The Mediterranean House Gecko has been the most successful invader, with established populations in at least 21 states.

To undertake any research on these nonnative geckos, scientists must first understand where these geckos occur. As we learn about the rapidly changing distributions of these nonnative geckos, we can then ask: (1) What are the impacts of these nonnative geckos on our native species?; (2) What makes some species successful colonizers?; and, (3) What are the likely routes of colonization? Observations from community scientists are essential to answering these questions and allowing us to learn about the invasion biology of these nonnative geckos.

To learn more about the project, visit the GeckoWatch webpage at www.nhm.org/geckowatch. less ↑