Ulva (Scottish Gaelic: Ulbha, pronounced [-ul--u.-]) is an island in the Inner Hebrides of Scotland, off the west coast of Mull. It is separated from Mull by a narrow strait, and connected to the neighbouring island of Gometra by a bridge. Much of the island is formed from Cenozoic basalt rocks, which is formed into columns in places. Ulva has been populated since the Mesolithic and there are various Neolithic remains on the island. The Norse occupation of the island in the Early Historic Period has left few tangible artefacts but did bequeath the island its name, which is probably from Ulvoy, meaning "wolf island". Celtic culture was a major influence during both Pictish and Dalriadan times as well as the post-Norse period when the islands became part of modern Scotland. This long period, when Gaelic became the dominant language, was ended by the 19th-century Clearances. At its height Ulva had a population of over 800, but today this has declined to less than 20. Numerous well-known individuals have connections with the island including David Livingstone, Samuel Johnson and Walter Scott, who drew inspiration from Ulva for his 1815 poem, The Lord of the Isles. Wildlife is abundant: cetaceans are regularly seen in the surrounding waters and over 500 species of plant have been recorded. Today there is a regular ferry service and tourism is the mainstay of the economy.