The trees that circle our properties ... In much of Alaska, caribou use black spruce-dominated taiga as cover and munch on the lichen growth often found there. Moose gravitate toward stands ...

A new study, published in the Proceedings of the National Academy of Sciences (PNAS), finds that black spruce trees — a key species ... are made of peat moss and lichens that retain moisture ...

pear DEAR EMAILER: Green masses growing on tree trunks or branches could be lichens, moss or algae. Lichens are unsightly organisms that look menacing but in reality cause no harm. They actually ...

Black spruce trees and the thick layer of peat they take ... Caribou depend on black spruce boreal forests for the thick layer of lichen that provides them with food, particularly during the ...