George Strait has the most #1 hits at 57 and counting. Nobody else comes close. Conway Twitty actually had the most until 2006 with 55 #1 hits. The Beatles are the musical act with the most songs to reach No. 1 on the Billboard singles chart. Mariah Carey has 18 such #1 hits and Elvis Presley 17.
Primary succession begins on rock formations, such as volcanoes or mountains, or in a place with no organisms or soil. This creates conditions nearer optimum for vascular plant growth; pedogenesis or the formation of soil is the most important process.
This non-native species causes extensive ecological damage to native habitats. Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat.Examples include areas which have been cleared of existing vegetation (such as after tree-felling in a woodland) and destructive events such as fires.Secondary succession is usually much quicker than primary succession for the following reasons: There is already an existing seed bank of suitable plants in the soil.his non-native species causes extensive ecological damage to native habitats. Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat.