Northeastern Research Station

Living Memorials

Research and Development

Software

• GMLSM: (Gypsy Moth Life System Model)

The gypsy moth life system model (GMLSM) is a very complete model of the population dynamics of this insect pest as it is known to exist in North America. It simulates these dynamics within a single forest stand over a user defined time interval (no. of years). It models the growth, feeding, and mortality of the gypsy moth in a single forest stand by following a number of cohorts on a degree-day basis.

• GMPHEN (Gypsy Moth Penology Model):

The GMPHEN model predicts the growth of gypsy moth from egg eclosion to adult emergence from the pupal stage. In this DOS program, users are provided with a menu structured access system, permitting one to supply weather data for a particular site in one of 5 formats. The program will predict instar distribution over time.

• Stand-Damage Model:

The Stand-Damage model describes the growth and mortality of a single forest stand over time. Users are provided with a menu structured access system, permitting one to describe a forest stand, the defoliation it is subjected to, and any silvicultural treatment that the user would like to stipulate. It is available as a stand-alone program as well as being bundled within the multi-model user interface system.

• The Forest Stewardship Planning Guide:

The Planning Guide is one of a group of computer programs intended to support good forest stewardship. The full set of tools is known collectively as NED, a computer-based, decision-support system being developed by the US Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. NED will provide site-specific expert recommendations to improve management for multiple values on forests in the Northeastern United States.

• NED/SIPS:

NED/SIPS is one of a group of computer programs intended to support good forest stewardship. The computer program, subtitled Stand Inventory Processor and Simulator (SIPS), provides an effective means of creating, managing, and analyzing forest inventory records at the stand level.

• NEWILD:

NEWILD is one of a group of computer programs intended to support good forest stewardship. NEWILD is a computer program currently under beta test. The object of NEWILD is to assist in the access and evaluation of the information presented in the Species/Habitat matrices developed by Richard M. DeGraaf.