Mast (botany) Mast seeding is defined as the highly variable production of fruit by a population. These intermittent pulses of food resources drive ecosystem-level functions and forest dynamics. The difference between a mast seeding year and a non-mast seeding year can be thousands of acorns, hickory nuts, beech nuts, etc. Mast seeding dominantly occurs in wind-pollinated tree species, but has also been observed in grasses and Dipterocarps. Masting, in the strict sense of the term, occurs only in monocarpic (or semelparous) species, whose members reproduce only once during their lifetime, then die. Hypothesis for the evolution of mast seeding can broadly be
Walter Beech Stearman, and Clyde Cessna formed Travel Air Manufacturing Company. When the company merged with Curtiss-Wright, Beech became vice-president. In 1932, he and his wife, Olive Ann Beech, along with Ted Wells, K.K. Shaul, and investor C.G. Yankey, co-founded the Beech Aircraft Company in Wichita, Kansas. Their early Beechcraft planes won the Bendix Trophy. During World War II, Beech Aircraft produced more than 7,400 military aircraft. The twin Beech AT-7/C-45 trained more than 90 percent of the U.S. Army Air Forces navigator/bombardiers and 50 percent of its multi-engine pilots. Beech died from a heart attack on November 29, 1950. He and