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Bat flies are one of the most abundant ectoparasites of bats, showing remarkable morphological adaptations to the parasitic habit, while the relationship with their hosts is characterized by a high level of specificity. By collecting bat flies from live hosts, our intention was to elucidate the seasonal differences in bat fly occurrence and to describe factors regulating the level of incipient host specificity. Our results indicate that the prevalence and the intensity of infestation is increasing from spring to autumn for most host species, with significant differences among different fly species. Males showed higher infestation levels than females in autumn, suggesting a non-random host choice by flies, targeting the most active host sex. Bat-bat fly host specificity shows seasonal changes and host choice of bat flies are affected by the seasonal differences in hosts' behavior and ecology, the intensity of infestation and the species composition of the local host community. Nycteribiid bat flies showed lower host specificity in the swarming (boreal autumn) period, with higher prevalence recorded on non-primary hosts. Choosing a non-primary bat host may be an adaptive choice for bat flies in the host's mating period, thus increasing their dispersive ability in a high activity phase of their hosts.
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http://dx.doi.org/10.1038/s41598-024-54143-4 | DOI Listing |
Curr Res Parasitol Vector Borne Dis
August 2025
Department of Ecology and Diseases of Zoo Animals, Game, Fish and Bees, University of Veterinary Sciences Brno, Brno, Czech Republic.
Recent research on chiropteran parasites suggests a high prevalence and diversity, and extensive spatial distribution of filarial species; however, ecological and phylogenetic studies are still in their infancy. We sampled blood from 78 bat specimens, collected 1181 ectoparasites at summer colonies in Armenia and Georgia, and used nested-PCR targeting the cytochrome oxidase subunit 1 (1) gene to detect and genotype filarial parasites. The overall prevalence of filarial DNA was 17.
View Article and Find Full Text PDFJ Nepal Health Res Counc
June 2025
harmacy Program, Gandaki University, Gyankunja, Pokhara, Kaski, Nepal, Research Center, Invention and Innovation Center, Gandaki University, Pokhara, Kaski, Nepal.
Background: Vector borne diseases are one of the prevailing global healthcare problems caused by mosquito bites. The main objective of this study was to determine the strategies used for the prevention of mosquito bites by general public of Kaski district, a mosquito bite prone area of Western Nepal, as evidenced by rising dengue cases.
Methods: A cross-sectional study with 435 households were surveyed, for the strategies used for mosquito bite prevention, in representative 15 wards of one metropolitan and four rural municipalities of Kaski district, selected by simple random sampling technique.
Viruses
June 2025
Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, 2116 Veterinary Medicine, Ames, IA 50011, USA.
Arthropod-borne viruses (arboviruses) significantly impact human, domestic animal, and wildlife health. While most arboviruses are transmitted to vertebrate hosts by blood-feeding mosquitoes and ticks, a growing body of evidence highlights the importance of other hematophagous arthropods in arboviral transmission. These lesser-known vectors, while often overlooked, can play crucial roles in the maintenance, amplification, and spread of arboviruses.
View Article and Find Full Text PDFParasit Vectors
July 2025
Department of Ecology and Evolution, University of Chicago, Chicago, IL, USA.
Background: Bats are important reservoir hosts for a variety of pathogens, some of which are transmitted by ectoparasite vectors including mites, fleas, lice, ticks, and bat flies (families Nycteribiidae and Streblidae). All these ectoparasite taxa are known to parasitize two endemic fruit bats of Madagascar, Eidolon dupreanum and Rousettus madagascariensis. We aimed to describe the diversity of ectoparasite infestation for both bat species through morphological observation and DNA barcoding and elucidate ecological and climatic correlates of seasonal nycteribiid parasitism of these hosts.
View Article and Find Full Text PDFParasit Vectors
July 2025
Center of Excellence in Veterinary Parasitology, Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand.
Background: Bats are known reservoirs for various pathogens, many of which can infect other animals through blood-feeding arthropods. Over 100 bat species have been identified as hosts for kinetoplastid protozoans, including ≥ 30 distinct Trypanosoma spp. However, bat trypanosomes remain relatively understudied owing to the nocturnal behavior of their hosts and legal restrictions on their capture for research.
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