Dataset

Data from: Reproductive isolation in alpine gingers: how do co-existing Roscoea (R. purpurea and R. tumjensis) conserve species integrity?

RMIT University, Australia
Assoc Professor Adrian Dyer (Associated with, Aggregated by)
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.5061/dryad.cs41886&rft.title=Data from: Reproductive isolation in alpine gingers: how do co-existing Roscoea (R. purpurea and R. tumjensis) conserve species integrity?&rft.identifier=https://redbox.rmit.edu.au/redbox/published/detail/e2c646a8a3d1d35721c0917f1b619b3b&rft.publisher=RMIT University, Australia&rft.description=Multiple barriers may contribute to reproductive isolation between closely related species. Understanding the relative strength of these barriers can illuminate the ecological factors that currently maintain species integrity and how these factors originally promoted speciation. Two Himalayan alpine gingers, Roscoea purpurea and R. tumjensis, occur sympatrically in central Nepal and have such similar morphology that it is not clear whether or how they maintain a distinct identity. Our quantitative measurements of the components of reproductive isolation show that they are, in fact, completely isolated by a combination of phenological displacement of flowering, earlier for R. tumjensis and later for R. purpurea, and complete fidelity of visitation by different pollinator species, bumblebees for R. tumjensis and a long-tongued fly for R. purpurea. Furthermore, the nectar of R. tumjensis flowers is available to the shorter-tongued bumblebees while R. purpurea nectar is less accessible, requiring deep probing from long-tongued flies. Although flowering phenology is a strong current barrier that seemingly obviates any need for pollinator discrimination, this current pattern need not reflect selective forces occurring at the initial divergence of R. tumjensis. There has been considerable pollinator switching during the radiation of the Himalayan Roscoea, and the association of flowering time with type of pollinator in these sympatric species may have originated among the earliest or latest flowering individuals or populations of an ancestor in order to exploit either bumblebee activity early in the breeding season or long-tongued fly abundance later in the season. These two sympatric Roscoea species add to accumulating evidence of the primacy of pre-zygotic pollination traits in speciation among angiosperms even in the absence of post-zygotic incompatibility.&rft.creator=Assoc Professor Adrian Dyer&rft.date=2019&rft.relation=https://doi.org/10.1111/evo.13546&rft_rights=Content in the Dryad Digital Repository is offered "as is." By downloading files, you agree to the Dryad Terms of Service. To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data https://datadryad.org/pages/policies&rft_rights=PDDL - Public Domain Dedication and License 1.0 http://opendatacommons.org/licenses/pddl/1.0/&rft_subject=Bumblebee&rft_subject=Floral Color&rft_subject=Long-Tongued Fly&rft_subject=Pollination&rft_subject=Speciation&rft_subject=Sympatry&rft_subject=Plant Developmental and Reproductive Biology&rft_subject=Biological Sciences&rft_subject=Plant Biology&rft_subject=Expanding Knowledge in the Biological Sciences&rft_subject=Expanding Knowledge&rft_subject=Expanding Knowledge&rft_subject=Applied Research&rft.type=dataset&rft.language=English Access the data

Licence & Rights:

Other view details
Unknown

PDDL - Public Domain Dedication and License 1.0
http://opendatacommons.org/licenses/pddl/1.0/

Content in the Dryad Digital Repository is offered "as is." By downloading files, you agree to the Dryad Terms of Service. To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data
https://datadryad.org/pages/policies

Access:

Other view details

Content in the Dryad Digital Repository is offered "as is." By downloading files, you agree to the Dryad Terms of Service. To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data
https://datadryad.org/pages/policies

Contact Information


Dryad Digital Repository

Full description

Multiple barriers may contribute to reproductive isolation between closely related species. Understanding the relative strength of these barriers can illuminate the ecological factors that currently maintain species integrity and how these factors originally promoted speciation. Two Himalayan alpine gingers, Roscoea purpurea and R. tumjensis, occur sympatrically in central Nepal and have such similar morphology that it is not clear whether or how they maintain a distinct identity. Our quantitative measurements of the components of reproductive isolation show that they are, in fact, completely isolated by a combination of phenological displacement of flowering, earlier for R. tumjensis and later for R. purpurea, and complete fidelity of visitation by different pollinator species, bumblebees for R. tumjensis and a long-tongued fly for R. purpurea. Furthermore, the nectar of R. tumjensis flowers is available to the shorter-tongued bumblebees while R. purpurea nectar is less accessible, requiring deep probing from long-tongued flies. Although flowering phenology is a strong current barrier that seemingly obviates any need for pollinator discrimination, this current pattern need not reflect selective forces occurring at the initial divergence of R. tumjensis. There has been considerable pollinator switching during the radiation of the Himalayan Roscoea, and the association of flowering time with type of pollinator in these sympatric species may have originated among the earliest or latest flowering individuals or populations of an ancestor in order to exploit either bumblebee activity early in the breeding season or long-tongued fly abundance later in the season. These two sympatric Roscoea species add to accumulating evidence of the primacy of pre-zygotic pollination traits in speciation among angiosperms even in the absence of post-zygotic incompatibility.
Click to explore relationships graph
Identifiers
  • Local : https://redbox.rmit.edu.au/redbox/published/detail/e2c646a8a3d1d35721c0917f1b619b3b