Development of Hepatozoon erhardovae Krampitz, 1964 (Protozoa: Haemogregarinidae) in experimental mammalian and arthropod hosts. II. Sexual development in fleas and sporozoite indices in xenodiagnosis

Krampitz, H. E.

doi:10.1016/0035-9203(81)90052-3

Cited by 19 publications

(9 citation statements)

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“…and T. acomys were markedly more prevalent and abundant than reported previously in Egypt (Nasr & Arafa, 1977) and, in our study, showed clear site‐specific co‐occurrence with the flea Pa. chephrensis , a known vector for T. acomys (Vilensky, 1960; Abdallah, Abdel‐Hafez & Al‐Yaman, 1989). European fleas can act as vectors for H. erhardovae (Krampitz, 1981) and so Pa. chephrensis may also be the vector for the Hepatozoon sp. infecting Ac.…”

Section: Discussionmentioning

confidence: 99%

Local variation of haemoparasites and arthropod vectors, and intestinal protozoans in spiny mice (Acomys dimidiatus) from four montane wadis in the St Katherine Protectorate, Sinai, Egypt

Bajer¹,

Harris

Behnke

et al. 2006

Journal of Zoology

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Haemoparasite infections and infestations with potential arthropod vectors were assessed in spiny mice Acomys dimidiatus from four wadis in the arid montane region of the southern Sinai in Egypt in late summer 2000. Five taxa of haemoparasites (Haemobartonella spp. 80%, Hepatozoon sp. 20.6%, Trypanosoma acomys 17.5%, Bartonella spp. 2.5% and Babesia sp. 1.9%) were recorded. Additionally, infections with two intestinal protozoa, Cryptosporidium cf. parvum and Giardia sp., were quantified, both with similar prevalence (17.0 and 17.6%, respectively). 17.9% of mice carried fleas (Parapulex chephrensis and Xenopsylla dipodilli) and 32.1% had lice (Polyplax oxyrrhyncha and Polyplax brachyrrhycha combined). Marked differences in the prevalence and abundance of infections were detected between the four wadis, particularly with respect to T. acomys, Hepatozoon sp. and fleas, which were largely aggregated in just two of the four sites (Wadis Gharaba and Tlah). In contrast, the intestinal protozoa were more common, and abundance was higher, in Wadi El Arbaein. Intrinsic factors also contributed to a variation in prevalence, with strong age-dependent increases in the prevalence and abundance of Hepatozoon sp., higher mean species richness, prevalence of Cr. cf. parvum, and abundance of Giardia sp. and Hepatozoon sp. in female mice. Haemobartonella spp. showed an age-dependent reduction in abundance and higher abundance among male mice. A weak association was found between the prevalence of T. acomys and its putative flea vector. The single extrinsic factor in the study, site of capture, was more important than the intrinsic factors in explaining variation in the prevalence and abundance of haemoparasites, intestinal protozoa and arthropod vectors. In the high mountains of southern Sinai, the parasite fauna of spiny mice is distinct in each wadi, and hence we expect the parasites to exert spatially different co-evolutionary pressures on their hosts, with a resultant variation in host life histories.

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Section: Discussionmentioning

confidence: 99%

Local variation of haemoparasites and arthropod vectors, and intestinal protozoans in spiny mice (Acomys dimidiatus) from four montane wadis in the St Katherine Protectorate, Sinai, Egypt

Bajer¹,

Harris

Behnke

et al. 2006

Journal of Zoology

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“…In bank voles, the parasite was identified as H. erhardovae, based on morphology (Frank 1977, Krampitz 1981) and the previous reports associating this parasite with the bank vole (Šebek et al 1980, Walter and Liebisch 1980, Turner and Cox 1985. In transmission electron microscopy intracellular meronts were found located in alveolar septa.…”

Section: Forms Ofmentioning

confidence: 91%

“…Surveys of small mammals in Central Europe (Mahnert 1972, Frank 1977, Šebek 1978, Šebek et al 1980, Walter and Liebisch 1980, Healing 1981, Turner 1986 indicate that Hepatozoon infections are especially common in the bank vole, Clethrionomys glareolus (Schreber). One species, Hepatozoon erhardovae Krampitz, 1964, has the bank vole as the type host.…”

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confidence: 99%

Haemogregarines of the genus Hepatozoon (Apicomplexa: Adeleina) in rodents from northern Europe

Laakkonen

Sukura²,

Oksanen³

et al. 2001

FOLIA PARASIT

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Abstract. We studied the prevalence and distribution of Hepatozoon infections in small rodents from Finland and other areas in northern Europe. Hepatozoon infections were more common in voles (Arvicolinae) than mice (Murinae) and more prevalent in voles of the genus Clethrionomys than in voles of the genus Microtus. Transmission electron microscopical examination of Hepatozoon erhardovae Krampitz, 1964 from bank voles Clethrionomys glareolus (Schreber) showed that intracellular lung meronts were located in alveolar septa. Meronts consisted of varying numbers of merozoites packed with amylopectin vacuoles inside electron-lucent parasitophorous vacuole. The size of the meronts was approximately 19 × 14 µm. Monozoic or dizoic cysts were frequent findings in the lung alveoles; the size of cysts was approximately 10 × 6 µm. Gametocytes were found inside eosinophilic granulocytes in the capillaries of lung tissue. Ultrastructurally, micronemes, microtubules, mitochondria, nuclei and lipid droplets were visible.

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“…Our understanding of the transmission cycles involved is still incomplete, particularly in respect of the key factors that regulate transmission. In contrast to helminth communities, haemoparasites of small wild rodents have received relatively little attention in Europe and published studies have largely reported on rodent communities in Western and Northern Europe (Baker et al 1963;Baker 1974;Krampitz 1981;Birtles et al 1994). In this respect Central and Eastern Europe have been relatively neglected, but there is now growing interest in the occurrence of haemoparasites in wild rodents from Eastern Europe Sin´ski 1996a, 1996b;Karbowiak et al 1999) and our earlier studies in the Mazury Lake District region of Poland have drawn attention to the high prevalence of both haemoparasites and Cryptosporidium spp.…”

Section: Introductionmentioning

confidence: 98%

Factors affecting the component community structure of haemoparasites in common voles ( Microtus arvalis ) from the Mazury Lake District region of Poland

Pawełczyk¹,

Bajer²,

Behnke

et al. 2004

Parasitology Research

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The prevalence and abundance of infections with haemoparasites were studied over a 4-year period in Microtus arvalis (common vole, n =321) sampled from fallow grassland sites in north-eastern Poland. Total species richness was five (prevalence= Haemobartonella sp. 63.9%, Bartonella spp. 27.7%, Babesia microti 9.0%, Trypanosoma sp. 8.4% and and Hepatozoon lavieri 3.1%) with 76.9% of the voles carrying at least one species and a mean infracommunity species richness of 1.1. Variation in species richness was determined primarily by season and year, the interaction of these factors, and that of year with host age. The observed frequency distribution of infracommunity species richness did not differ from that predicted by a null model, suggesting that there were no marked associations between the species. Analyses of prevalence and abundance of infection with each species in turn, revealed that overall the principal causes of variation were temporal and seasonal, their interaction, and interactions with intrinsic factors (age and sex), the latter playing only a minor role in their own right. However, the relative importance of these combinations varied and was distinct for each of the species in the study. Prevalence data revealed eight sets of two- and three-way associations between species, mostly dependent to some extent on one of the intrinsic and extrinsic factors in the model. Analysis of quantitative associations suggested two sets of positive two-way interactions, none of which remained after controlling for the effect of extrinsic and intrinsic factors on the abundance of each species. These data are discussed in the context of the changing ecological profiles in this region of Eastern Europe and, in a wider context, in relation to current understanding of the factors that shape component community structures of haemoparasites in wild rodents.

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Development of Hepatozoon erhardovae Krampitz, 1964 (Protozoa: Haemogregarinidae) in experimental mammalian and arthropod hosts. II. Sexual development in fleas and sporozoite indices in xenodiagnosis

Cited by 19 publications

References 0 publications

Local variation of haemoparasites and arthropod vectors, and intestinal protozoans in spiny mice (Acomys dimidiatus) from four montane wadis in the St Katherine Protectorate, Sinai, Egypt

Local variation of haemoparasites and arthropod vectors, and intestinal protozoans in spiny mice (Acomys dimidiatus) from four montane wadis in the St Katherine Protectorate, Sinai, Egypt

Haemogregarines of the genus Hepatozoon (Apicomplexa: Adeleina) in rodents from northern Europe

Factors affecting the component community structure of haemoparasites in common voles ( Microtus arvalis ) from the Mazury Lake District region of Poland

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