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Donnish Journal of Entomology and Nematology

February 2015 Vol. 1(1), pp. 001-008

Copyright © 2015 Donnish Journals




Original Research Article


The Incidence of the Protozoa Malamoeba locustae and Gregarina granhami in three Acridian Communities during Summer Month


Abdel Rahman KM, El-Shazly MM and Ghazawy NA

Entomology Department, Faculty of Science, Cairo University, Giza, Egypt

Corresponding Author E-mail: khabdelrahmn@sci.cu.edu.eg

Accepted 20th December, 2014.



Abstract


The incidence of Gregarina garnhami and Malamoeba locustae was investigated during summer 2012 among three wild grasshopper communities. Pooling the data of the three communities, it was found that about 38.5% of the grasshopper species hosted either G. garnhami or M. locustae, and 15.28% of the individuals hosted one of them. The absence of such protozoa from Chrotogonus lugubris was attributed to an acquired immune response associated with feeding preference. It was assumed that these parasites are among exogenous density-dependent key factors regulating the grasshopper populations, and hence play a role in community stability in the wild acridid communities. The grasshopper communities were investigated at three study sites. The first site, Abu-Rauw‚sh, is a countryside of Giza governorate. The second and third sites, Wadi El-Natroun and Kom Osheem, are located about 100 kilometers to the north and the south of the governorate; respectively. The first community consisted of 8 species; the most abundant was Heteracris littoralis (relative abundance 29.14%). The percentage of G. garnhami in the community was 8.47% while M. locustae 27.45% of the population corresponding to 8.0% of the entire community. The second community consisted of 12 species; the most abundant was H. littoralis (relative abundance 22.49%). The percentage of G. garnhami in the community was 6.89%, while M. locustae was recorded in 14.39% of H. littoralis population corresponding to 3.23% of the entire community. The third community consisted of 10 species; the most abundant was Pyrgomorpha. conica (relative abundance 20.08%). The percentage of G. garnhami in the community was 13.04%; it was recorded in H. littoralis, P. conica and, P. cognata; again, M. locustae was recorded only in H. littoralis (28.47% of the population), corresponding to 5.66% of the entire community.

Keywords: Malamoeb, Gregarina, grasshopper, Orthoptera, Occupancy.

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Cite This Article:

Abdel Rahman KM, El-Shazly MM and Ghazawy NA. The Incidence of the Protozoa Malamoeba locustae and Gregarina granhami in three Acridian Communities during Summer Month 1(1) 2015 pp. 001-008.


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