SPEER Lab

Symbioses and Parasite Ecology and Evolution Research Lab

A Fly on the Cave Wall: Parasite Genetics Reveal Fine-scale Dispersal Patterns of Bats.


Journal article


Kelly A. Speer, Eli Luetke, Emily C. Bush, Bhavya K. Sheth, Allie Gerace, Zachary S. Quicksall, M. Miyamoto, C. Dick, K. Dittmar, N. Albury, D. Reed
Journal of Parasitology, 2019

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APA   Click to copy
Speer, K. A., Luetke, E., Bush, E. C., Sheth, B. K., Gerace, A., Quicksall, Z. S., … Reed, D. (2019). A Fly on the Cave Wall: Parasite Genetics Reveal Fine-scale Dispersal Patterns of Bats. Journal of Parasitology.


Chicago/Turabian   Click to copy
Speer, Kelly A., Eli Luetke, Emily C. Bush, Bhavya K. Sheth, Allie Gerace, Zachary S. Quicksall, M. Miyamoto, et al. “A Fly on the Cave Wall: Parasite Genetics Reveal Fine-Scale Dispersal Patterns of Bats.” Journal of Parasitology (2019).


MLA   Click to copy
Speer, Kelly A., et al. “A Fly on the Cave Wall: Parasite Genetics Reveal Fine-Scale Dispersal Patterns of Bats.” Journal of Parasitology, 2019.


BibTeX   Click to copy

@article{kelly2019a,
  title = {A Fly on the Cave Wall: Parasite Genetics Reveal Fine-scale Dispersal Patterns of Bats.},
  year = {2019},
  journal = {Journal of Parasitology},
  author = {Speer, Kelly A. and Luetke, Eli and Bush, Emily C. and Sheth, Bhavya K. and Gerace, Allie and Quicksall, Zachary S. and Miyamoto, M. and Dick, C. and Dittmar, K. and Albury, N. and Reed, D.}
}

Abstract

Dispersal influences the evolution and adaptation of organisms, but it can be difficult to detect. Host-specific parasites provide information about the dispersal of their hosts and may be valuable for examining host dispersal that does not result in gene flow or that has low signals of gene flow. We examined the population connectivity of the buffy flower bat, Erophylla sezekorni (Chiroptera: Phyllostomidae), and its associated obligate ectoparasite, Trichobius frequens (Diptera: Streblidae), across a narrow oceanic channel in The Bahamas that has previously been implicated as a barrier to dispersal in bats. Due to the horizontal transmission of T. frequens, we were able to test the hypothesis that bats are dispersing across this channel, but this dispersal does not result in gene flow, occurs rarely, or started occurring recently. We developed novel microsatellite markers for the family Streblidae in combination with previously developed markers for bats to genotype individuals from 4 islands in The Bahamas. We provide evidence for a single population of the host, E. sezekorni, but 2 populations of its bat flies, potentially indicating a recent reduction of gene flow in E. sezekorni, rare dispersal, or infrequent transportation of bat flies with their hosts. Despite high population differentiation in bat flies indicated by microsatellites, mitochondrial DNA shows no polymorphism, suggesting that bacterial reproductive parasites may be contributing to mitochondrial DNA sweeps. Parasites, including bat flies, provide independent information about their hosts and can be used to test hypotheses of host dispersal that may be difficult to assess using host genetics alone.


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