This term refers to the activity of a species specifically during the dusk and dawn time periods.
Crepuscular
What federal law established in 1972 regulates pollution discharge into the waters of the United States?
Clean Water Act
Pennsylvania's official state tree
Eastern Hemlock
This term refers to the vertical cross-section of a soil sample from the surface down to the parent material.
Soil profile
This type of pollution is associated with runoff from various sources like golf courses, lawns, and roadways.
Non-point source pollution
PA's state bird which relies on early successional habitat
Ruffed Grouse
This is a area of land where all the water drains off (under it)
watershed
This tool is used by foresters to measure the diameter of a tree a breast height.
Biltmore Stick
The smallest soil particle type; also has the most capacity to hold water.
Clay
This federal legislation passed in 1973 provides protection for organisms in eminent danger of extinction (and their habitats)
The Endangerd Species Act (ESA)
This term refers to the build up of toxins in adipose (fat) tissue of organisms, especially those at higher trophic levels.
Biomagnification
The biggest obstacle to the migration of anadromous fishes?
dam
This invasive insect which kills many trees, especially ASH trees, is identified by its metallic green exoskeleton.
Emerald Ash Borer
The organic layer at the top of a soil profile that is composed of decomposing leaves and twigs.
O-horizon
parasitize fish gills
This term refers to the maximum population that a habitat can support at a given moment.
Carrying Capacity
This measure of water clarity is often tested with a black and white "secchi" disk?
turbidity
This silvicultural technique refers to the removal of all trees in an area to allow for the regeneration of shade-intolerant species.
Clear-cutting
This term refers to the ability of water to pass through the pores of a soil sample.
Permeability
Chronic Wasting Disease is unique because it is transmitted by THESE misfolded proteins rather than bacteria or viruses.
Prions
Macro-invertebrates are categorized as _____________ species because their presence or absence suggests water quality.
Indicator
This term refers to the horizontal forest layers such as the canopy, understory, and herbaceous layer.
Stratification
This soil guide (book) is used to delineate wetland soils based on their properties like hue and value
Munsell Soil Guide
Pa has 294 of these publicly accessible hunting areas
state game land