An Australian company, Earth Sanctuaries Ltd., is aiming to turn a profit by protecting land and wildlife. The company, one of the first of its kind in the world, operates three Australian conservation sanctuaries and plans to buy land to create new sanctuaries, likely near Sydney and Melbourne. It intends to make money by attracting tourists, selling food and merchandise, and hosting conferences and other events at its facilities, as well as by consulting on wildlife and conservation management issues. The company’s stock hasn’t fared well since it began trading on the Australian Stock Exchange on May 8, but John Wamsley, Earth Sanctuaries’ managing director, is optimistic that the company has developed a model that will prove successful over the next five years.