Ecological implications of reduced pollen supply in the alpine: a case study using a dominant cushion plant species [v2; ref status: indexed, http://f1000r.es/3xc]
The reproductive assurance hypothesis states that self-incompatible female plants must produce twice the number of seeds relative to their self-compatible hermaphroditic counterparts to persist in gynodioecious populations. This is a viable life-history strategy, provided that pollination rates are...
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ftdoajarticles:oai:doaj.org/article:2e9aa15649ff4cce9ea5ae496a438111 2023-05-15T18:19:45+02:00 Ecological implications of reduced pollen supply in the alpine: a case study using a dominant cushion plant species [v2; ref status: indexed, http://f1000r.es/3xc] Anya Reid Robyn Hooper Olivia Molenda Christopher J. Lortie 2014-08-01T00:00:00Z https://doi.org/10.12688/f1000research.4382.2 https://doaj.org/article/2e9aa15649ff4cce9ea5ae496a438111 EN eng F1000 Research Ltd http://f1000research.com/articles/3-130/v2 https://doaj.org/toc/2046-1402 2046-1402 doi:10.12688/f1000research.4382.2 https://doaj.org/article/2e9aa15649ff4cce9ea5ae496a438111 F1000Research, Vol 3 (2014) Community Ecology & Biodiversity Ecosystem Ecology Population Ecology Medicine R Science Q article 2014 ftdoajarticles https://doi.org/10.12688/f1000research.4382.2 2022-12-31T09:42:38Z The reproductive assurance hypothesis states that self-incompatible female plants must produce twice the number of seeds relative to their self-compatible hermaphroditic counterparts to persist in gynodioecious populations. This is a viable life-history strategy, provided that pollination rates are sufficiently high. However, reduced pollination rates in alpine plants are likely due to climate induced plant-pollinator mismatches and general declines in pollinators. Using a gynodioecious population of the dominant plant Silene acaulis (Caryophyllaceae), we tested the reproductive assurance hypothesis and also the stress gradient hypothesis with a series of pollinator exclusion trials and extensive measurements of subsequent reproductive output (gender ratio, plant size, percent fruit-set, fruit weight, seeds per fruit, total seeds, seed weight, and seed germination). The reproductive assurance hypothesis was supported with female plants being more sensitive to and less likely to be viable under reductions in pollination rates. These findings are the first to show that the stress gradient hypothesis is also supported under a gradient of pollen supply instead of environmental limitations. Beneficiary abundance was negatively correlated to percent fruit-set under current pollen supply, but became positive under reduced pollen supply suggesting that there are important plant-plant-pollinator interactions related to reproduction in these alpine plant species. Article in Journal/Newspaper Silene acaulis Directory of Open Access Journals: DOAJ Articles F1000Research 3 130 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Community Ecology & Biodiversity Ecosystem Ecology Population Ecology Medicine R Science Q |
spellingShingle |
Community Ecology & Biodiversity Ecosystem Ecology Population Ecology Medicine R Science Q Anya Reid Robyn Hooper Olivia Molenda Christopher J. Lortie Ecological implications of reduced pollen supply in the alpine: a case study using a dominant cushion plant species [v2; ref status: indexed, http://f1000r.es/3xc] |
topic_facet |
Community Ecology & Biodiversity Ecosystem Ecology Population Ecology Medicine R Science Q |
description |
The reproductive assurance hypothesis states that self-incompatible female plants must produce twice the number of seeds relative to their self-compatible hermaphroditic counterparts to persist in gynodioecious populations. This is a viable life-history strategy, provided that pollination rates are sufficiently high. However, reduced pollination rates in alpine plants are likely due to climate induced plant-pollinator mismatches and general declines in pollinators. Using a gynodioecious population of the dominant plant Silene acaulis (Caryophyllaceae), we tested the reproductive assurance hypothesis and also the stress gradient hypothesis with a series of pollinator exclusion trials and extensive measurements of subsequent reproductive output (gender ratio, plant size, percent fruit-set, fruit weight, seeds per fruit, total seeds, seed weight, and seed germination). The reproductive assurance hypothesis was supported with female plants being more sensitive to and less likely to be viable under reductions in pollination rates. These findings are the first to show that the stress gradient hypothesis is also supported under a gradient of pollen supply instead of environmental limitations. Beneficiary abundance was negatively correlated to percent fruit-set under current pollen supply, but became positive under reduced pollen supply suggesting that there are important plant-plant-pollinator interactions related to reproduction in these alpine plant species. |
format |
Article in Journal/Newspaper |
author |
Anya Reid Robyn Hooper Olivia Molenda Christopher J. Lortie |
author_facet |
Anya Reid Robyn Hooper Olivia Molenda Christopher J. Lortie |
author_sort |
Anya Reid |
title |
Ecological implications of reduced pollen supply in the alpine: a case study using a dominant cushion plant species [v2; ref status: indexed, http://f1000r.es/3xc] |
title_short |
Ecological implications of reduced pollen supply in the alpine: a case study using a dominant cushion plant species [v2; ref status: indexed, http://f1000r.es/3xc] |
title_full |
Ecological implications of reduced pollen supply in the alpine: a case study using a dominant cushion plant species [v2; ref status: indexed, http://f1000r.es/3xc] |
title_fullStr |
Ecological implications of reduced pollen supply in the alpine: a case study using a dominant cushion plant species [v2; ref status: indexed, http://f1000r.es/3xc] |
title_full_unstemmed |
Ecological implications of reduced pollen supply in the alpine: a case study using a dominant cushion plant species [v2; ref status: indexed, http://f1000r.es/3xc] |
title_sort |
ecological implications of reduced pollen supply in the alpine: a case study using a dominant cushion plant species [v2; ref status: indexed, http://f1000r.es/3xc] |
publisher |
F1000 Research Ltd |
publishDate |
2014 |
url |
https://doi.org/10.12688/f1000research.4382.2 https://doaj.org/article/2e9aa15649ff4cce9ea5ae496a438111 |
genre |
Silene acaulis |
genre_facet |
Silene acaulis |
op_source |
F1000Research, Vol 3 (2014) |
op_relation |
http://f1000research.com/articles/3-130/v2 https://doaj.org/toc/2046-1402 2046-1402 doi:10.12688/f1000research.4382.2 https://doaj.org/article/2e9aa15649ff4cce9ea5ae496a438111 |
op_doi |
https://doi.org/10.12688/f1000research.4382.2 |
container_title |
F1000Research |
container_volume |
3 |
container_start_page |
130 |
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1766196968278720512 |