Pollination by deceit, floral sex ratios and seed set in dioecious Rubus chamaemorus L.
Male and female flowers of the dioecious perennial herb Rubus chamaemorus L. are similar in general appearance. However, female flowers are somewhat smaller, do not produce any pollen, and contain very small amounts of nectar. Syrphids and bumblebees, which are important pollinators of R. chamaemoru...
Published in: | Oecologia |
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Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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1986
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Online Access: | https://lup.lub.lu.se/record/8f56de64-e0f0-4ea6-be50-b2bdc1640988 https://doi.org/10.1007/BF00379493 |
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ftulundlup:oai:lup.lub.lu.se:8f56de64-e0f0-4ea6-be50-b2bdc1640988 2023-05-15T18:07:45+02:00 Pollination by deceit, floral sex ratios and seed set in dioecious Rubus chamaemorus L. Ågren, J. Elmqvist, T. Tunlid, A. 1986-10-01 https://lup.lub.lu.se/record/8f56de64-e0f0-4ea6-be50-b2bdc1640988 https://doi.org/10.1007/BF00379493 eng eng Springer https://lup.lub.lu.se/record/8f56de64-e0f0-4ea6-be50-b2bdc1640988 http://dx.doi.org/10.1007/BF00379493 scopus:0022823382 Oecologia; 70(3), pp 332-338 (1986) ISSN: 0029-8549 Ecology Dioecy Pollination Rubus chamdemorus Seed set Sex ratio contributiontojournal/article info:eu-repo/semantics/article text 1986 ftulundlup https://doi.org/10.1007/BF00379493 2023-02-01T23:38:10Z Male and female flowers of the dioecious perennial herb Rubus chamaemorus L. are similar in general appearance. However, female flowers are somewhat smaller, do not produce any pollen, and contain very small amounts of nectar. Syrphids and bumblebees, which are important pollinators of R. chamaemorus, showed a strong preference for male flowers. Male flowers were also less often rejected by flower visitors than were female flowers, and two different groups of syrphid species stayed longer in male than in female flowers. These observations suggest that female flowers of R. chamaemorus attract pollinators by deceit. Hand-pollination experiments indicated that pollen availability limited seed production of R. chamaemorus in female dominated habitats but not in areas with an equal floral sex ratio. We suggest that the relative importance of factors limiting female reproductive success is not constant, but is influenced by the floral sex ratio of the population. This should apply also to other dioecious species that show variable sex ratios on either a local or regional scale. Article in Journal/Newspaper Rubus chamaemorus Lund University Publications (LUP) Oecologia 70 3 332 338 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Ecology Dioecy Pollination Rubus chamdemorus Seed set Sex ratio |
spellingShingle |
Ecology Dioecy Pollination Rubus chamdemorus Seed set Sex ratio Ågren, J. Elmqvist, T. Tunlid, A. Pollination by deceit, floral sex ratios and seed set in dioecious Rubus chamaemorus L. |
topic_facet |
Ecology Dioecy Pollination Rubus chamdemorus Seed set Sex ratio |
description |
Male and female flowers of the dioecious perennial herb Rubus chamaemorus L. are similar in general appearance. However, female flowers are somewhat smaller, do not produce any pollen, and contain very small amounts of nectar. Syrphids and bumblebees, which are important pollinators of R. chamaemorus, showed a strong preference for male flowers. Male flowers were also less often rejected by flower visitors than were female flowers, and two different groups of syrphid species stayed longer in male than in female flowers. These observations suggest that female flowers of R. chamaemorus attract pollinators by deceit. Hand-pollination experiments indicated that pollen availability limited seed production of R. chamaemorus in female dominated habitats but not in areas with an equal floral sex ratio. We suggest that the relative importance of factors limiting female reproductive success is not constant, but is influenced by the floral sex ratio of the population. This should apply also to other dioecious species that show variable sex ratios on either a local or regional scale. |
format |
Article in Journal/Newspaper |
author |
Ågren, J. Elmqvist, T. Tunlid, A. |
author_facet |
Ågren, J. Elmqvist, T. Tunlid, A. |
author_sort |
Ågren, J. |
title |
Pollination by deceit, floral sex ratios and seed set in dioecious Rubus chamaemorus L. |
title_short |
Pollination by deceit, floral sex ratios and seed set in dioecious Rubus chamaemorus L. |
title_full |
Pollination by deceit, floral sex ratios and seed set in dioecious Rubus chamaemorus L. |
title_fullStr |
Pollination by deceit, floral sex ratios and seed set in dioecious Rubus chamaemorus L. |
title_full_unstemmed |
Pollination by deceit, floral sex ratios and seed set in dioecious Rubus chamaemorus L. |
title_sort |
pollination by deceit, floral sex ratios and seed set in dioecious rubus chamaemorus l. |
publisher |
Springer |
publishDate |
1986 |
url |
https://lup.lub.lu.se/record/8f56de64-e0f0-4ea6-be50-b2bdc1640988 https://doi.org/10.1007/BF00379493 |
genre |
Rubus chamaemorus |
genre_facet |
Rubus chamaemorus |
op_source |
Oecologia; 70(3), pp 332-338 (1986) ISSN: 0029-8549 |
op_relation |
https://lup.lub.lu.se/record/8f56de64-e0f0-4ea6-be50-b2bdc1640988 http://dx.doi.org/10.1007/BF00379493 scopus:0022823382 |
op_doi |
https://doi.org/10.1007/BF00379493 |
container_title |
Oecologia |
container_volume |
70 |
container_issue |
3 |
container_start_page |
332 |
op_container_end_page |
338 |
_version_ |
1766179974149046272 |