Dataset Overview

This study compares the magnitude and trajectory of vegetation and ecosystem function dynamics associated with the direct impact of hemlock woolly adelgid (Adelges tsuga; HWA) infestation versus the indirect consequences of HWA-induced damage in the form of salvage and pre-emptive logging of hemlock (Tsuga canadensis (L.) Carriere) forests. The study was conducted within an area extending from southern Connecticut up to and including the Connecticut River lowlands west to the Berkshire Plateauin central Massachusetts, USA. Overstory and understory vegetation and ecosystem function parameters such as decomposition and nitrogen cycling were examined in logged and unlogged portions of 10 hemlock stands varying in HWA damage intensity.

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The objective is to compare the direct impact of hemlock wooly adelgid infestation to the indirect consequences of HWA induced damage from salvage and logging of hemlock.

Data Collection Status

Data collection for this dataset has been completed

Start date


End date


Data Availability

This dataset is available to download from another website

Data License

Linked - Third party determines data license

Preferred Citation

Orwig D, Foster D. 2012. Stand and Community Response to Hemlock Woolly Adelgid in Southern New England since 1995. Harvard Forest Data Archive: HF021. Available at:

Update Frequency


Maintenance Plan

Not provided


  • Stand and Community Response to Hemlock Wooly Adelgid in Southern New England since 1995
  • Harvard Forest
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