Cruznema tripartitum




Rev 01/27/2020

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle
Return to Cruznema Menu Ecosystem Functions and Services
Distribution Management
Return to Rhabditidae Menu Feeding  References
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        Cruznema tripartitum (Linstow, 1906), Zullini, 1982


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Morphology and Anatomy:





Cruznema: Male tail - Spicules and bursa with rays

Cruznema: Male tail - Sperm in vas deferens

Photomicrographs by Howard Ferris

Ref: Tahseen et al. (2012)

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:


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Widely distributed, world-wide.

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Biology and Ecology:

See Ferris et al (1995; 1996; 1997)

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Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level parameters

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Ecosystem Functions and Services:

Nitrogen mineralization: excretion of excess N during consumption of bacteria (Ferris et al., 1997)..

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Ferris, H., M. Eyre, R. C. Venette and S. S. Lau.  1996.  Population energetics of bacterial-feeding nematodes:  stage-specific development and fecundity rates.  Soil Biology and Biochemistry 28:271-280.

Ferris, H., R. C. Venette and S. S. Lau.  1996.  Dynamics of nematode communities in tomatoes grown in conventional and organic farming systems, and their impact on soil fertility.  Applied Soil Ecology 3:161-175.

Ferris, H., S. Lau and R. Venette.  1995.  Population energetics of bacterial-feeding nematodes:  respiration and metabolic rates based on carbon dioxide production.  Soil Biology and Biochemistry 27:319-330.

Ferris, H., R. C. Venette and S. S. Lau.  1997.  Population energetics of bacterial-feeding nematodes:  Carbon and Nitrogen budgets.  Soil Biology and Biochemistry 29:1183-1194.

Tahseen, Q., Sultana, R. Khan, R. and Hussain, A. 2012. Description of two new and one known species of the closely related genera Cruznema Artigas, 1927 and Rhabpanus Massey, 1971 (Nematode: Rhabditidae) with a discussion on their relationships. Nematology 14:555-570.

Venette, R. C. and H. Ferris. 1997. Thermal constraints to population growth of bacterial-feeding nematodes. Soil Biology and Biochemistry 29:63-74.
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Copyright © 1999 by Howard Ferris.
Revised: January 27, 2020.