As with other taxa, larches provide a larger value (for the ecosystem, humans) while advancing their own individual need for survival and reproduction. Ecologically, larches provide food and habitat for a number of animals, such as the seeds, buds, and immature cones providing food some birds, and larch needles eaten by various caterpillars. For humans, larches provide commercial and aesthetic value. The wood of various species is valued in for its tough, waterproof, and durable qualities, and is in demand for building yachts and small boats, as well as railroad ties, mine timbers, telephone poles, posts, cabinets, interior work, and rustic fencing. Larches also are cultivated for ornamental purposes, including in bonsai culture.