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Demography Of Termite Colonies As Related To Various Environmental Factors: Nutritional Biochemistry And Physiology Of Termites, W. L. Nutting, J. P. Lafage Jan 1979

Demography Of Termite Colonies As Related To Various Environmental Factors: Nutritional Biochemistry And Physiology Of Termites, W. L. Nutting, J. P. Lafage

Memorandum

No abstract provided.


Linear Measurement: A Method Of Estimating Fascicle Numbers For Larch Casebearer Population Sampling, United States Department Of Agriculture, Forest Service Jan 1978

Linear Measurement: A Method Of Estimating Fascicle Numbers For Larch Casebearer Population Sampling, United States Department Of Agriculture, Forest Service

Forestry

Branch samples collected from 23 plots in northern Idaho and western Montana in 1975 had a combined mean distribution of 3.13 fascicles/inch (1.23 fascicles/cm) of branch length. By subsampling, it is possible to determine cumulative lineal inches of branch necessary to obtain a sampling unit of 100 fascicles for a plot, eliminating the need for counting fascicles on each sample.


Regeneration And Early Growth On Strip Clearcuts In Lodgepole Pine/Bitterbrush Habitat Type, United States Department Of Agriculture, Forest Service Jan 1977

Regeneration And Early Growth On Strip Clearcuts In Lodgepole Pine/Bitterbrush Habitat Type, United States Department Of Agriculture, Forest Service

Forestry

Establishment and growth of seedlings 13 years after strip clearcutting was investigated on a lodgepole pine/bitterbrush habitat type in southwestern Montana. Ingress of new seedlings (all from open-coned lodgepole pine) on areas that had been heavily bulldozer scarified was considerably better than on areas without bulldozer scarification. Seed:seedling ratios (established seedlings) ranged from 625:1 to 2,160:1 on scarified sites, and from 1,876:1 to 6,480:1 on unscarified sites. Only 3 years out of 13 resulted in significant numbers of seedlings being established. Advanced regeneration released by logging was growing as rapidly as seedlings established following logging.


The Ants Of Arizona: An Ecological Study Of Ants In The Sonoran Desert, C. Gaspar, F. G. Werner Jan 1976

The Ants Of Arizona: An Ecological Study Of Ants In The Sonoran Desert, C. Gaspar, F. G. Werner

Memorandum

No abstract provided.


Data Search For Aquatic Model, J. Perry Ii, G. W. Minshall Jan 1975

Data Search For Aquatic Model, J. Perry Ii, G. W. Minshall

Memorandum

No abstract provided.


Effect Of Density On The Population Dynamics Of Perognathus Formosus And Its Relationships Within A Desert Ecosystem, R. M. Chew Jan 1975

Effect Of Density On The Population Dynamics Of Perognathus Formosus And Its Relationships Within A Desert Ecosystem, R. M. Chew

Memorandum

No abstract provided.


Comparative Ecology Of The Harvester Ants Pogonomyrmex Barbatus (F. Smith) And Pogonomyrmex Rugosus (Emery), W. G. Whitford, P. Johnson, J. Ramirez Jan 1975

Comparative Ecology Of The Harvester Ants Pogonomyrmex Barbatus (F. Smith) And Pogonomyrmex Rugosus (Emery), W. G. Whitford, P. Johnson, J. Ramirez

Memorandum

No abstract provided.


Effect Of Density On The Population Dynamics Of Perognathus Formosus And Its Relationships Within A Desert Ecosystem, Robert M. Chew, Frederick B. Turner Jan 1974

Effect Of Density On The Population Dynamics Of Perognathus Formosus And Its Relationships Within A Desert Ecosystem, Robert M. Chew, Frederick B. Turner

Memorandum

No abstract provided.


Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, Ting H. Hsiao, Thomas W. Green Jan 1974

Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, Ting H. Hsiao, Thomas W. Green

Memorandum

No abstract provided.


Demography And Role Of Herbivorous Ants In A Desert Ecosystem As Functions Of Vegetation, Soil And Climate Variables, Walter G. Whitford, Carol Ann Kay Jan 1974

Demography And Role Of Herbivorous Ants In A Desert Ecosystem As Functions Of Vegetation, Soil And Climate Variables, Walter G. Whitford, Carol Ann Kay

Memorandum

No abstract provided.


Effect Of Density On The Population Dynamics Of Perognathus Formosus And Its Relationships Within A Desert Ecosystem, R. M. Chew, F. B. Turner, Peter August, Bernardo Maza, James Nelson Jan 1973

Effect Of Density On The Population Dynamics Of Perognathus Formosus And Its Relationships Within A Desert Ecosystem, R. M. Chew, F. B. Turner, Peter August, Bernardo Maza, James Nelson

Memorandum

No abstract provided.


Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, Ting H. Hsiao Jan 1972

Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, Ting H. Hsiao

Memorandum

No abstract provided.


Dynamics And Productivity Of Aquatic Invertebrates In A Desert Environment, A. R. Gaufin, J. Stanford, E. Clubb, E. Nisonger Jan 1972

Dynamics And Productivity Of Aquatic Invertebrates In A Desert Environment, A. R. Gaufin, J. Stanford, E. Clubb, E. Nisonger

Memorandum

No abstract provided.


Aquatic Macroinvertebrates Of The Playa, G. Richardson, C. R. Ward, E. W. Huddleston Jan 1972

Aquatic Macroinvertebrates Of The Playa, G. Richardson, C. R. Ward, E. W. Huddleston

Memorandum

No abstract provided.


Aphids Of Curlew Valley, George F. Knowlton Jan 1971

Aphids Of Curlew Valley, George F. Knowlton

Memorandum

No abstract provided.