Laimydorus baldus

Laimydorus baldus	Contents	Rev 12/21/2021
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Laimydorus Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Dorylaimidae Menu	Feeding	References
	Go to Nemaplex Main Menu	Go to Dictionary of Terminology

Classification:

Enoplea

Dorylaimia
Dorylaimida

Dorylaimidae

Laimydorus baldus Baqri & Jana, 1983

Large nematodes.
Cuticle smooth.
Head region continuous with body contour or slightly offset.
Odontostyle strong and straight, longer than labial diameter. Guiding ring double and obvious.
Females diovarial, amphidelphic.
Female tail attentuated to filiform.
Male pre-rectum long, beginning anterior to supplements.
Male with 15-40 small ventomedian supplements.
Male tail short and rounded
(Andrassy, 2009).

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

Back to Top

Distribution:

Aquatic and moist habitats.

Back to Top

Feeding:

Categorized as an omnivore (Yeates et al., 1993) and studied as a predator by Bilgrami and Gaugler (2005).

Back to Top

Biology and Ecology:

Feeding activities of the predatory nematodes Laimydorus baldus and Discolaimus major preying on Hirschmanniella oryzae were studied under laboratory
conditions by Bilgrami and Gaugler, 2005:

Discolaimus major killed more prey, and fed and aggregated longer than L. baldus.
Laimydorus baldus consumed prey more rapidly then D. major.
Predator activities at the feeding site were greatest at 30◦C. Predators starved for 6 days detected prey rapidly and aggregated at the feeding site longest.
Predators were increasingly efficient at finding prey as prey density increased.
Prey search and predation abilities of L. baldus and D. major were regulated by temperature, prey density, starvation and prey incubation.

Predators starved for 10 days exhibited maximum response to the presence of prey. Predators detected prey kairomones at distances of 2-3 cm on agar plates (Pervez and Bilgrami, 2000),

Back to Top

Life Cycle:

Ecophysiological Parameters:

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

Back to Top

Ecosystem Functions and Services:

Back to Top

Management:

Back to Top

References:

Andrassy, I. 2009. Free-living Nematodes of Hungary III. Hungarian Natural History Museum, Budapest. 608p.

Bilgrami, A.L. and Gaugler, R. 2005. Feeding behaviour of the predatory nematodes Laimydorus baldus and Discolaimus major (Nematoda: Dorylaimida). Nematology 7:11-20.

Pervez, R., Bilgrami, A.L. 2000. Some factors influencing chemoattraction behaviour of dorylaim predators, Laimydorus baldus and Discolaimus major towards prey kairomones. International Journal of Nematology 10:41-48.

Yeates, G.W., T. Bongers, R. G. M. De Goede, D. W. Freckman, and S. S. Georgieva. 1993. Feeding habits in soil nematode families and genera—An outline for soil ecologists. Journal of Nematology 25:315-331.

Back to Top

For more information about nematodes Go to Nemaplex Main Menu.