TL;DR: In this article, the effects of the haematophagous tropical fowl mite (Ornithonyssus bursa, Berlese (Macronyssidae, Gamasida)) on the within-season costs of reproduction in their swallow (Hirundo rustica L.) hosts by simultaneously manipulating the size of first clutches and the mite loads of first clutch nests were either sprayed with a pesticide or kept as controls.
Abstract: Parasites are hypothesized to increase the cost of reproduction in their hosts due to their time and energy drain. I experimentally studied the effects of the haematophagous tropical fowl mite (Ornithonyssus bursa, Berlese (Macronyssidae, Gamasida)) on the within-season costs of reproduction in their swallow (Hirundo rustica L.) hosts by simultaneously manipulating (i) the size of first clutches (which were either increased by one egg, kept as a control, or decreased by one egg), and (ii) the mite loads of first clutch nests (nests were either sprayed with a pesticide or kept as controls). The experimental treatments were successful as evidenced from the effect of the clutch size manipulation on clutch and subsequent brood size, and from the effect of the parasite manipulation on subsequent mite loads
TL;DR: Multiple erythematous papules accompanied by severe pruritus were observed in humans bitten by the mites (Acari), Pyemotes tritici (Newport) (Pyemotidae), Dermanyssus gallinae (De Geer) (Dermanyssidae), Ornithonyssus bacoti Hirst (Macronyssidae) and Androlaelaps casalis (Berlese) (Laelapidae).
Abstract: Multiple erythematous papules accompanied by severe pruritus were observed in humans bitten by the mites (Acari) Pyemotes tritici (Newport) (Pyemotidae), Dermanyssus gallinae (De Geer) (Dermanyssidae), Ornithonyssus bacoti Hirst (Macronyssidae) and Androlaelaps casalis (Berlese) (Laelapidae). Eight case histories are presented and the impact of these species on human health is discussed.
TL;DR: DNA extracts from pools of mites from rats throughout 14 governorates in Egypt tested for Bartonella spp.
Abstract: We collected and tested 616 tropical rat mites (Ornithonyssus bacoti (Hirst)) from rats (Rattus norvegicus (Berkenhout) and R. rattus (Linnaeus)) throughout 14 governorates in Egypt and tested DNA extracts from pools of these mites for Bartonella spp., Coxiella burnetii, and Rickettsia spp. by PCR amplification and sequencing. Three different mite-associated bacterial agents, including one Bartonella and two Rickettsia spp., were detected in eight pools of mites. Further research could demonstrate the vector potential of mites and pathogenicity of these agents to humans or animals.