Pine - Ecology

Ecology

Pines grow well in acid soils, some also on calcareous soils; most require good soil drainage, preferring sandy soils, but a few (e.g. Lodgepole Pine) will tolerate poorly drained wet soils. A few are able to sprout after forest fires (e.g. Canary Island Pine). Some species of pines (e.g. Bishop Pine) need fire to regenerate, and their populations slowly decline under fire suppression regimes. Several species are adapted to extreme conditions imposed by elevation and latitude (e.g. Siberian Dwarf Pine, Mountain Pine, Whitebark Pine and the bristlecone pines). The pinyon pines and a number of others, notably Turkish Pine and Gray Pine, are particularly well adapted to growth in hot, dry semi-desert climates.

The seeds are commonly eaten by birds and squirrels. Some birds, notably the Spotted Nutcracker, Clark's Nutcracker and Pinyon Jay, are of importance in distributing pine seeds to new areas. Pine needles are sometimes eaten by some Lepidoptera (butterfly and moth) species (see list of Lepidoptera that feed on pines), the Symphytan species Pine sawfly, and goats.