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sex-biased parasitism, seasonality and sexual size dimorphism in desert rodents.we investigated seasonality of gender differences in the patterns of flea infestation in nine rodent species to test if sex-biased parasitism in terms of mean abundance, species richness, prevalence and the level of aggregation (a) varies among hosts and between seasons, and (b) is linked to sexual size dimorphism. sexual size differences were significant in both summer and winter in acomys cahirinus, gerbillus pyramidum and meriones crassus, and in winter only in acomys russatus, gerbillus dasy ...200516025350
listeriosis in seven bushy-tailed jirds.listeriosis was diagnosed in 7 bushy-tailed jirds (sekeetamys calurus). death in all cases was acute, and there were no clinical signs. necropsy revealed necrotizing lesions in the liver, intestines, spleen, and hepatic and mesenteric lymph nodes. on histologic examination large numbers of gram-positive coccobacilli were seen in the lesions. pneumonitis was seen in 6 jirds, and small numbers of bacteria were seen in the lungs in all cases except one. diagnosis was based on bacterial culture of t ...19846511584
effect of conspecific and heterospecific urine odors on the foraging behavior of the golden spiny mouse.the common spiny mouse (acomys cahirinus) inhibits the foraging activity of the golden spiny mouse (a. russatus). these two sympatric species of spiny mice, which are considered habitat competitors, occur in extreme arid environments. to test this theory of competition, the influence of urinary odors of both conspecific and heterospecific mice on the foraging behavior of a. russatus was studied under controlled laboratory conditions. twenty adult males, born in captivity and unfamiliar to the od ...201223621466
description of candidatus bartonella fadhilae n. sp. and candidatus bartonella sanaae n. sp. (bartonellaceae) from dipodillus dasyurus and sekeetamys calurus (gerbillinae) from the sinai massif (egypt).bartonella spp. are parasites of mammalian erythrocytes and endothelial cells, transmitted by blood-feeding arthropod ectoparasites. different species of rodents may constitute the main hosts of bartonella, including several zoonotic species of bartonella. the aim of this study was to identify and compare bartonella species and genotypes isolated from rodent hosts from the south sinai, egypt. prevalence of bartonella infection was assessed in rodents (837 acomys dimidiatus, 73 acomys russatus, 1 ...201728541836
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