Earthworm resources of Benghazi, Libya.

Area of Science:

• Zoology
• Ecology
• Soil Biology

Background:

• Earthworms (Oligochaeta) are crucial for soil health and ecosystem function.
• Limited data exists on earthworm diversity in North African coastal urban environments.
• Benghazi, Libya, represents a unique Mediterranean coastal ecosystem for biodiversity assessment.

Purpose of the Study:

• To conduct the first comprehensive survey of earthworm species in Benghazi, Libya.
• To identify and document the earthworm fauna present in various urban and peri-urban habitats.
• To investigate the distribution and density of earthworm species in relation to soil physico-chemical properties.

Main Methods:

• Field surveys were conducted across six distinct habitats in and around Benghazi.
• Earthworm specimens were collected, identified to species level, and their densities quantified.
• Soil samples were analyzed for key physico-chemical parameters (e.g., pH, organic matter, texture).

Main Results:

• Three peregrine earthworm species were identified: Allolobophora caliginosa trapezoides, Allolobophora rosea (Lumbricidae), and Microscolex dubius (Microscolecidae).
• Species distribution and density varied significantly across the surveyed habitats.
• Preliminary correlations were observed between earthworm abundance and specific soil characteristics.

Conclusions:

• This study establishes a baseline for earthworm diversity in Benghazi, Libya.
• The identified species are common cosmopolitan earthworms, indicating potential introductions.
• Further research is needed to understand the ecological roles and management of these earthworms in Mediterranean urban soils.