TS015
Comparison of arthropod densities on young-growth and old-growth foliage in the Andrews Experimental Forest, 1986

CREATOR(S): Timothy D. Schowalter

PRINCIPAL INVESTIGATOR(S): Timothy D. Schowalter

ORIGINATOR(S): Timothy D. Schowalter

DATA SET CONTACT PERSON: Timothy D. Schowalter

ABSTRACTOR: Timothy D. Schowalter

METADATA CREATION DATE:

4 May 2004

MOST RECENT METADATA REVIEW DATE:

4 May 2004

KEYWORDS:

Populations, populations, arthropods, insects

METHODS:

Experimental Design - TS015 :

Description: One Douglas-fir and one western hemlock tree was sampled at each old-growth site were sampled at top, middle, and bottom crown strata in June, August and September, 1986. Three Douglas-fir at each young-growth site and three Snowbrush (Ceanothus velutinus) on Watershed 6 (site 7) were sampled in June, August and October.

Field Methods - TS015 :

Description: Old-growth trees were initially climbed with spikes and rigged with ropes for later canopy access. All samples collected by enclosing a branch in a 50-l plastic bag and returned to the lab. All samples were sorted under a stereoscope into invertebrate, foliage, lichen, and twig components. Plant material was dried at 45 degrees.

TAXONOMIC SYSTEM:

None

GEOGRAPHIC EXTENT:

H.J. Andrews area: Watersheds 6, 8, and 10; Mack Creek; Management units L107A, L107B, L302, L404A.

MEASUREMENT FREQUENCY:

PROGRESS DESCRIPTION:

Complete

UPDATE FREQUENCY DESCRIPTION:

notPlanned

CURRENTNESS REFERENCE:

Ground condition