Parasitology Research

, Volume 116, Issue 1, pp 237–242 | Cite as

Discrimination between lineage-specific shelters by bat- and human-associated bed bugs does not constitute a stable reproductive barrier

  • Ondřej Balvín
  • Tomáš Bartonička
  • Kateřina Pilařová
  • Zachary DeVries
  • Coby Schal
Original Paper


The common bed bug Cimex lectularius, has been recently shown to constitute two host races, which are likely in the course of incipient speciation. The human-associated lineage splits from the ancestral bat-associated species deep in the history of modern humans, likely even prior to the Neolithic Period and establishment of the first permanent human settlements. Hybridization experiments between these two lineages show that post-mating reproductive barriers are incomplete due to local variation. As mating takes place in off-host refugia marked by aggregation semiochemicals, the present investigation tested the hypothesis that bed bugs use these semiochemicals to differentiate between refugia marked by bat- and human-associated bed bugs; this would constitute a pre-copulation isolation mechanism. The preference for lineage-specific odors was tested using artificial shelters conditioned by a group of either male or female bed bugs. Adult males were assayed individually in four-choice assays that included two clean unconditioned control shelters. In most assays, bed bugs preferred to rest in conditioned shelters, with no apparent fidelity to shelters conditioned by their specific lineage. However, 51 % of the bat-associated males preferred unconditioned shelters over female-conditioned shelters of either lineage. Thus, bed bugs show no preferences for lineage-specific shelters, strongly suggesting that semiochemicals associated with shelters alone do not function in reproductive isolation.


Pre-copulation reproduction isolation Pheromones Parasites Aggregation behavior 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Ondřej Balvín
    • 1
  • Tomáš Bartonička
    • 2
  • Kateřina Pilařová
    • 1
  • Zachary DeVries
    • 3
  • Coby Schal
    • 3
  1. 1.Department of Ecology, Faculty of Environmental SciencesCzech University of Life Sciences PraguePrague 6Czech Republic
  2. 2.Department of Botany and ZoologyMasaryk UniversityBrnoCzech Republic
  3. 3.Department of Entomology and Plant PathologyNorth Carolina State UniversityRaleighUSA

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