Human interference in the dunes present a huge threat to the dunes and their structural integrity. The simple act of walking on dunes will cause them and their ecosystems to become damaged. Often, dune blowout occurs when one part of the dune weakens or sinks in (often caused by humans). When wind blows or waves hit the dunes, the force accumulates in the weakened part of the dune until a hole or gap forms. This hole, which grows continually, allows more water and wind to travel behind the dune and destroy it overtime. this lowers the over effectiveness of the dune in the event of a storm. In addition, many fragile and diverse ecosystems and disrupted or destroyed. Several examples of dune blowout caused by human interference can be seen to left in order of increasing severity.(www.freefoto.com.images, www.aquaticconsultingonline.com,
besidethetrail.ca)
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