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
Beech River Beech River The Beech River is a stream draining the east-central portion of West Tennessee in the United States. The Beech rises about northwest of Lexington, Tennessee. In the same area are the headwaters of two other West Tennessee rivers, the Big Sandy River and the Middle Fork of the Forked Deer River. The Big Sandy, like the Beech, is part of the Tennessee River system, whereas the Forked Deer system drains into the Mississippi River. The Beech River was named for the beech timber along its course. The Beech flows southeast into the town of Lexington and then primarily