8/12/2023 0 Comments Pitfall trap iPlace the transects / plots at least 10 m away from the sea / lagoon. This can be a little difficult in areas with coral rubble. Preferably choose site that are not too difficult to dig at. Similarly, if you use transects these should all be the same length (for example 20 m).Ĭhoose sites that are typical of the invaded area. All plots within a site should be the same size (for example 5 m x 5 m). Plots or transects can be any size that are convenient. Within these sites you choose plots (smaller areas within the sites) or transects (lines through the site). Usually this means choosing a few areas (sites). Choosing sitesįirst you need to plan where you will put your containers. If you are working in a sensitive area, where by-catch is likely you should consider installing a lid (an elevated plastic disk or plastic lid larger than the trap for example) on sticks over the pitfall trap. Note that pitfall traps are known to trap small animals such as lizards. Invaded areas usually have fewer (or different) ants or other insects. You can compare the results of uninvaded and invaded areas to get an idea of the impacts of the ants in the environment. The ants and other insects are then counted and identified. The container is half filled with a liquid that drowns any insect that falls into it (and preferably preserves it also). Pitfall trapping involves digging a container into the ground to catch ants. But pitfall traps can also be placed in trees to capture ants. The most common type of pitfall trap are those dug into the ground. Pitfall traps can be a useful technique for confirming the presence of invasive ants in an area and assessing the impact of the ants in the environment. You are here: About the PIAT» Assessing the problem» Pitfall traps Pitfall traps
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