So the beatles are not the fundamental cause responsible for the decline of the yellow cedars.

所以，甲虫的入侵不是黄杉数量下降的重要因素。

Totem poles were carved from red or yellow cedar carved by hand and painted using traditional colors.

图腾柱由手工雕刻的红色或黄色雪松雕刻而成，并使用传统颜色绘制。

For example, the bark and leaves of the yellow cedars are saturated with powerful chemicals that are poisonous to the insects.

比如，黄杉的树皮和叶子上聚集着一些对于昆虫来说有毒的的强力化学物质。

Well, the problem with this explanation is these healthy yellow cedars are generally much more resistant to insect infection than the other tree species.

这个解释的问题在于黄杉相对于其他树种来说其实有更强的抵御害虫侵袭的能力。

Yellow cedar population has been declining all across of the Northwestern coast of North America, both on the mainland and on islands just off the coast.

在北美西北部整个海岸线上的黄杉数量都在下降，不管是在大陆还是在离岸的岛屿上。