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
Weeping beech but grows in USDA hardiness zones 4-7. It needs moisture and well drained soil and prefers sunny to semi-shaded zones. The tree does not tolerate industrial pollution or street salt. Young trees need to be staked to make them grow upward; growth tends to be slow. Weeping beeches may live for 150 to 200 years. Pest that can attack the tree includes aphids, borers (flat-headed apple tree borer, two-lined chestnut borer), certain caterpillars, and fungal disease. Weeping beech The weeping beech, "Fagus sylvatica" 'Pendula', is a cultivar of the deciduous European beech. The weeping beech is characterized by its shape