Uses of Timber
Worldwide, more than half of timber is used for this.
What is cooking and heating?
A new organism takes the place of a previous organism in an ecosystem.
What is succession?
In the north, these caterpillars are the most common cause of defoliation.
What are tent caterpillars?
This fungal disease spread by bark beetles kills elm trees.
What is Dutch Elm Disease?
The xylem flows in this direction.
What is up from the roots?
One-sixth of harvested timber is used for this.
What is pulpwood?
The pattern of change in an ecosystem where community has previously existed.
What is secondary succession?
This green beetle is a growing threat to ash trees.
What is the Emerald Ash Borer?
Fusiform rust causes this kind of swollen growths on the trunk and branches of trees.
What are galls?
The very center of a tree trunk.
What is the pith?
These four forest products are called "naval stores."
What are rosin, turpentine, tar, and pitch?
(3 out of 4 wins.)
Lichens have this role in succession.
What is a pioneer species?
This pest attacks trees that are weakened, dying, or recently fallen.
What is the Ips beetle?
The fungus most damaging to merchantable hardwood timber.
What is heart rot?
This is under the inner bark.
What is the cambium?
These three products can be made from the foliage of trees.
What are oils, extracts, and spices?
(2 out of 3 wins.)
Occurs in areas with no life previously present.
What is primary succession?
This insect is the world's greatest defoliator.
What is the gypsy moth?
A fungal disease that attacks a wide variety of conifers.
What is annosus root rot?
The top part of a tree.
What is the crown?
These forests were the source of naval stores.
What are southern pine forests?
This is the successor to a mixed forest ecosystem.
What is a deciduous forest?
This insect's larvae feed on pine needles, leaving nothing but stubs.
What is the pine sawfly?
Dutch Elm Disease kills trees because the fungus blocks these.
What are vascular tubes?
The method for determining a tree's age by counting rings.
What is counting every other ring?