Seventy-seven species of land snail and an estimated 14,000 species of insect live in Scotland, none of them "truly" endemic. These include "Pardosa lugubris", a species of wolf spider first found in the UK in 2000 at Abernethy Forest nature reserve, and the Scottish wood ant. These ants, which are the most numerous residents of the Caledonian pine forest, build mounds from the pine cones and needles they find on the forest floor and may inhabit the mounds for decades. A single colony may collect 100,000 insects a day to feed its half million citizens and produce up to of honeydew per season.