Karst Invertebrate Surveys

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Zara permitted biologists perform presence/absence surveys following U.S. Fish and Wildlife Service survey protocols. These involve multiple surveys conducted by a scientists holding a U.S. Fish and Wildlife 10(a)(1)(A) permit for karst invertebrates. During visual surveys, all visible surfaces and the undersides of rocks are examined for the presence of karst invertebrates. Glue traps, which use an adhesive that causes fauna to stick to the trap, are placed in the features and collected on the next visit. Glue traps have been found to be an effective method of supplementing the visual searches required by U.S. Fish and Wildlife Service, since they allow for continuous sampling in the absence of a researcher. Zara has conducted hundreds of karst invertebrate surveys across central Texas for public and private sector clients. These surveys are often required for federal approval of certain projects. Zara is able to quickly mobilize to minimize project delays for our clients. We maintain a strong working relationship with U.S. Fish and Wildlife staff, which helps facilitate a positive outcome for our clients.