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
Two Years Before the Mast two years later, aboard the "Alert" (which left California sooner than the "Pilgrim"). He kept a diary throughout the voyage, and, after returning, he wrote a recognized American classic, "Two Years Before the Mast", published in 1840. The term "before the mast" refers to the quarters of the common sailors, in the forecastle, in the front of the ship. His writing evidences his later sympathy with the lower classes. He later became a prominent anti-slavery activist and helped found the Free Soil Party. In the book, which takes place between 1834 and 1836, Dana gives a vivid account of "the