- Aerial videography.
- Recording of
images with a video camera mounted in an aircraft. Videography can
be interfaced with other technologies such as GPS and GIS.
- Associated with
- An organism,
usually a plant, with a high and relatively easily identifiable sensitivity
to selective environmental influences. For example, black cherry is
a bioindicator of ozone pollution.
- A tree-infecting
fungus vectored (transmitted) by bark beetles.
- The trunk or
stem of a tree.
- Low-lying land
along a watercourse, in contrast to upland.
- A small protuberance
on the stem of a plant that may develop into a flower, leaf, or shoot.
- A thickened area
- A thin formative
layer between the woody element of a plant and the complex tissue
containing tubes for translocation of nutrients and water.
- A localized area
of dead tissue in a plant.
- An immature insect
stage, usually mobile and suited for dispersal.
- The study of
- Death of end
branches in tree crowns.
- Distress cone
- An inordinately
high production of reproductive structures in conifers, usually associated
with a stressed condition.
- Feeder roots.
- Those parts of
the root system responsible for assimilation of water and nutrients.
- See Forest Health
- See Forest Inventory
- Forest Health
- A unit of the
USDA Forest Service that specializes in pest and related problems.
- Forest Health
- A consortium
of many Federal and State agencies that monitors, assesses, and reports
on the status of the nation's forests.
- Forest Inventory
- A unit of the
USDA Forest Service charged with compilation and reporting of data
on the nation's forests. Formerly called Forest Survey.
- Fruiting bodies.
structures of fungi.
- A system of computers
and software that stores data and allows analysis of spatial and temporal
relationships with one another.
- See geographic
- Global positioning
- A system that
uses satellite technology and portable receiving units to determine
- See global positioning
- Host type.
- A species or
group of species attacked by insects or diseases, usually for food.
For example, southern pines to southern pine beetles.
- Life cycle.
- The series of
stages in form and functional activities through which an organism
passes between successive recurrences of a specified primary stage.
- Vegetative structures
used by wildlife for food. For example, acorns by bears.
- A point on a
stem at which a leaf or leaves are inserted.
- Refers to information
in the Forest Health Monitoring program not collected as part of the
on-frame program. See on-frame.
- Refers to a network
of survey plots installed at regular intervals across the United States.
These plots are administered and monitored by the USDA Forest Service,
the Environmental Protection Agency, and participating State forestry
- The layer of
foliage in a forest canopy and trees contributing to it. Understory
is the term for the plants of a forest undergrowth.
- Palisade tissue.
- A layer of cells
found beneath the outer layer of the upper side of foliage leaves.
without intervention by males.
- A specific causative
agent of disease.
- Present at all
seasons of the year. The term can also be used designate a plant that
produces new growth in successive years from a perennating part.
- A complex tissue
in plants that functions in the translocation of water and nutrients.
- A chemical released
by an insect or other animal through which it communicates with another
individual of the same species through a sense of smell.
- One who makes
reliable measurements by the use of photographs, especially aerial
- Poisonous to
- Pitch tubes.
- Globs of resin
that solidify upon exposure to the air. Bark beetles produce pitch
tubes through their boring activities.
- A transition
stage in a life cycle of insects between larva and adult.
- To change to
- Hardened reddish
wood that results from feeding by the balsam woolly adelgid.
Forest Experiment Station.
- Sketch map
and delineation of a forest condition by a surveyor marking it on
a map, usually from an aircraft.
- Southern Forest
- A microorganism
used to generate a new individual.
- To generate spores.
- An infestation
in the forest, usually referencing a bark beetle infestation.
- Spot head.
- Part of a spot
that comprises the actively spreading portion of the infestation.
It is analogous to a fire line in a forest fire.
- The plural of
stoma, a minute opening in the outer layer of a plant organ, as a
leaf, through which gaseous interchange takes place.
- A long mouth
part of an insect, normally used to extract fluids.
- A group of signs
and symptoms that occur together and characterize a particular abnormality.
- The portion of
the atmosphere that is below the stratosphere. It extends outward
about 7 to 10 miles from the earth's surface.
- The term for
the plants of a forest undergrowth.
- Ground elevated
above the lowlands along watercourses or between hills, in contrast
- An organism,
usually an insect, which transmits a disease.
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