"Research into the Effects of Invasive Earthworm Species" by Elizabeth Gillis

College

Buchtel College of Arts and Sciences

Date of Last Revision

2025-02-04 13:16:28

Major

Biology

Honors Course

Biol 499

Number of Credits

2

Degree Name

Bachelor of Science

Date of Expected Graduation

Fall 2024

Abstract

Amynthas gracilis, or Alabama jumper worms, are a species of earthworms invasive to North America that hail from Asia. These worms are known to have an effect on the levels of macro-nutrients in the soil, as well as make alterations to the structure of the soil. These changes to soil composition and structure alter the soil’s ability to retain moisture and have been shown to negatively impact European species of earthworms such as Dutch Reds (Eisenia hortensis), Red Wigglers (Eisenia fetida,) and Canadian Nightcrawlers (Lumbricus terrestris). These effects were observed and quantified by monitoring and recording the populations and biomasses of communities kept in their own soil as well as soil that had been previously inhabited by Amynthas gracilis. The Eisenia hortensis, Eisenia fetida and Lumbricus terrestris populations that were housed in soil treated by Amynthas gracilis showed an increased and accelerated rate of die off compared to their counterparts kept within native untreated soils.

Research Sponsor

Dr. Randall Mitchell

First Reader

Dr. Robert Duff

Second Reader

Cynthia Yoder

Honors Faculty Advisor

Dr. Brian Bagatto

Proprietary and/or Confidential Information

No

Included in

Biology Commons

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