期刊
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 289, 期 1970, 页码 -出版社
ROYAL SOC
DOI: 10.1098/rspb.2022.0042
关键词
phylogenomics; cospeciation; Columbidae; ectoparasite; lice
资金
- US National Science Foundation [DEB-1342604, DEB-1926919, DEB1925487, DEB-1342600, DEB9703003, DEB-0107947, DEB-1149160, DEB-1925312]
- US National Institutes of Health [R01GM115996, R35GM131787]
- Swiss National Science Foundation [PP00P3_170664, PP00P3_202669]
- Virginia Commonwealth University, Department of Life Sciences
- Swiss National Science Foundation (SNF) [PP00P3_202669] Funding Source: Swiss National Science Foundation (SNF)
This study reveals that long-distance dispersal by dove hosts plays a central role in parasite diversification, as it provides new ecological opportunities for the parasites. Furthermore, it shows that cospeciation is the dominant mode of parasite speciation, rather than host-switching.
Adaptive radiation is an important mechanism of organismal diversification and can be triggered by new ecological opportunities. Although poorly studied in this regard, parasites are an ideal group in which to study adaptive radiations because of their close associations with host species. Both experimental and comparative studies suggest that the ectoparasitic wing lice of pigeons and doves have adaptively radiated, leading to differences in body size and overall coloration. Here, we show that long-distance dispersal by dove hosts was central to parasite diversification because it provided new ecological opportunities for parasites to speciate after host-switching. We further show that among extant parasite lineages host-switching decreased over time, with cospeciation becoming the more dominant mode of parasite speciation. Taken together, our results suggest that host dispersal, followed by host-switching, provided novel ecological opportunities that facilitated adaptive radiation by parasites.
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