A beach is an unstable environment that exposes plants and animals to changeable and potentially harsh conditions. Some animals burrow into the sand and feed on material deposited by the waves. Crabs, insects and shorebirds feed on these beach dwellers. The endangered piping plover and some tern species rely on beaches for nesting. Sea turtles also bury their eggs in ocean beaches. Seagrasses and other beach plants grow on undisturbed areas of the beach and dunes.
In March 2003, Hawaiian Airlines filed for Chapter 11 bankruptcy protection for the second time in its history. The airline continued its normal operations, and at the time was overdue for $4.5 million worth of payments to the pilots' pension plan. Within the company, it was suggested that the plan be terminated. As of May 2005, Hawaiian Airlines had received court approval of its reorganization plan. The company emerged from bankruptcy protection on June 2, 2005, with reduced operating costs through renegotiated contracts with its union work groups; restructured aircraft leases; and investment from RC Aviation, a unit of San Diego-based Ranch Capital, which bought a majority share in parent company Hawaiian Holdings Inc in 2004.
Often the companies combine IT operations, or purchase fuel and aircraft as a bloc to achieve higher bargaining power. However, the alliances have been most successful at purchasing invisible supplies and services, such as fuel. Airlines usually prefer to purchase items visible to their passengers to differentiate themselves from local competitors. If an airline's main domestic competitor flies Boeing airliners, then the airline may prefer to use Airbus aircraft regardless of what the rest of the alliance chooses.