SRM Glossary

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Term Description Source
Ice-Cream Species

An exceptionally palatable species sought and grazed frequently by livestock or game animals. Such species are often over utilized under proper grazing.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Increaser

For a given plant community, those species that increase in amount as a result of a specific abiotic/biotic influence or management practice.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Indian Allotment

Land held under the Indian Allotment Act of 1910, either patented or held in trust for an Indian by the government.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Indicator Species

(1) Species that indicate the presence of certain environmental conditions, seral stages, or previous treatment. (2) One or more plant species selected to indicate a certain level of grazing use. cf. key species

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Indigenous

Born, growing, or produced naturally (native) in an area, region, or country. cf. endemic

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Infestation

Invasion by large numbers of parasites or pests.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Infiltration

The flow of a fluid into a substance through pores of small openings. It connotes flow into a substance in contradistinction to the word percolation.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Infiltration rate

The rate of movement of water from the soil surface into soil.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Infiltration Velocity

The actual rate at which water enters the soil at any given time. It may be less than infiltration rate because of limited supply of water. Expressed in same units as infiltration rates.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Ingesta

Nutritive materials consumed by the animal.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Intensive Grazing Management

Grazing management that attempts to increase production or utilization per unit area or production per animal through a relative increase in stocking rates, forage utilization, labor, resources, or capital. Intensive grazing management is not synonymous with rotation grazing. Grazing management can be intensified by using any one or more of a number of grazing methods that use relatively more labor or capital resources. cf. extensive grazing management

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Intermittent Grazing

A method that imposed grazing for indefinite periods at irregular intervals.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Interseeding

Seeding into an established vegetation cover. Often is planting seeds into the center of narrow seedbed strips of variable spacing and prepared by mechanical or chemical methods.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Introduced Species

A species not a part of the original fauna or flora of the area in question. cf. native and resident species

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Invader

Plant species that were absent in undisturbed portions of the original vegetation of a specific range site and will invade or increase following disturbance or continued heavy grazing. cf. increaser

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Invasion

The migration of organisms from one area to another area and their establishment in the latter. cf. ecesis

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.
Isolated Land

Land of one ownership enclosed within boundaries of another ownership. Often refers to land in private ownership within the boundaries of public land.

Society for Range Management. 1998. Glossary of terms used in range management, fourth edition. Edited by the Glossary Update Task Group, Thomas E. Bedell, Chairman. Used with permission.