Heated rivalries: Phenological variation modifies competition for pollinators among arctic plants
Abstract When plant species compete for pollinators, climate warming may cause directional change in flowering overlap, thereby shifting the strength of pollinator‐mediated plant–plant interactions. Such shifts are likely accentuated in the rapidly warming Arctic. Targeting a plant community in Nort...
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crwiley:10.1111/gcb.15303 2024-09-15T18:02:25+00:00 Heated rivalries: Phenological variation modifies competition for pollinators among arctic plants Tiusanen, Mikko Kankaanpää, Tuomas Schmidt, Niels M. Roslin, Tomas Seventh Framework Programme Academy of Finland Ella ja Georg Ehrnroothin Säätiö Maj ja Tor Nesslingin Säätiö 2020 http://dx.doi.org/10.1111/gcb.15303 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.15303 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.15303 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Global Change Biology volume 26, issue 11, page 6313-6325 ISSN 1354-1013 1365-2486 journal-article 2020 crwiley https://doi.org/10.1111/gcb.15303 2024-08-09T04:25:06Z Abstract When plant species compete for pollinators, climate warming may cause directional change in flowering overlap, thereby shifting the strength of pollinator‐mediated plant–plant interactions. Such shifts are likely accentuated in the rapidly warming Arctic. Targeting a plant community in Northeast Greenland, we asked (a) whether the relative phenology of plants is shifting with spatial variation in temperature, (b) whether local plants compete for pollination, and (c) whether shifts in climatic conditions are likely to affect this competition. We first searched for climatic imprints on relative species phenology along an elevational gradient. We then tested for signs of competition with increasing flower densities: reduced pollinator visits, reduced representation of plant species in pollen loads, and reduced seed production. Finally, we evaluated how climate change may affect this competition. Compared to a dominant species, Dryas integrifolia × octopetala , the relative timing of other species shifted along the environmental gradient, with Silene acaulis and Papaver radicatum flowering earlier toward higher elevation. This shift resulted in larger niche overlap, allowing for an increased potential for competition for pollination. Meanwhile, Dryas emerged as a superior competitor by attracting 97.2% of flower visits. Higher Dryas density resulted in reduced insect visits and less pollen of S. acaulis being carried by pollinators, causing reduced seed set by S. acaulis . Our results show that current variation in climate shifts the timing and flowering overlap between dominant and less‐competitive plant species. With climate warming, such shifts in phenology within trophic levels may ultimately affect interactions between them, changing the strength of competition among plants. Article in Journal/Newspaper Climate change Greenland Papaver radicatum Silene acaulis Wiley Online Library Global Change Biology 26 11 6313 6325 |
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Wiley Online Library |
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English |
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Abstract When plant species compete for pollinators, climate warming may cause directional change in flowering overlap, thereby shifting the strength of pollinator‐mediated plant–plant interactions. Such shifts are likely accentuated in the rapidly warming Arctic. Targeting a plant community in Northeast Greenland, we asked (a) whether the relative phenology of plants is shifting with spatial variation in temperature, (b) whether local plants compete for pollination, and (c) whether shifts in climatic conditions are likely to affect this competition. We first searched for climatic imprints on relative species phenology along an elevational gradient. We then tested for signs of competition with increasing flower densities: reduced pollinator visits, reduced representation of plant species in pollen loads, and reduced seed production. Finally, we evaluated how climate change may affect this competition. Compared to a dominant species, Dryas integrifolia × octopetala , the relative timing of other species shifted along the environmental gradient, with Silene acaulis and Papaver radicatum flowering earlier toward higher elevation. This shift resulted in larger niche overlap, allowing for an increased potential for competition for pollination. Meanwhile, Dryas emerged as a superior competitor by attracting 97.2% of flower visits. Higher Dryas density resulted in reduced insect visits and less pollen of S. acaulis being carried by pollinators, causing reduced seed set by S. acaulis . Our results show that current variation in climate shifts the timing and flowering overlap between dominant and less‐competitive plant species. With climate warming, such shifts in phenology within trophic levels may ultimately affect interactions between them, changing the strength of competition among plants. |
author2 |
Seventh Framework Programme Academy of Finland Ella ja Georg Ehrnroothin Säätiö Maj ja Tor Nesslingin Säätiö |
format |
Article in Journal/Newspaper |
author |
Tiusanen, Mikko Kankaanpää, Tuomas Schmidt, Niels M. Roslin, Tomas |
spellingShingle |
Tiusanen, Mikko Kankaanpää, Tuomas Schmidt, Niels M. Roslin, Tomas Heated rivalries: Phenological variation modifies competition for pollinators among arctic plants |
author_facet |
Tiusanen, Mikko Kankaanpää, Tuomas Schmidt, Niels M. Roslin, Tomas |
author_sort |
Tiusanen, Mikko |
title |
Heated rivalries: Phenological variation modifies competition for pollinators among arctic plants |
title_short |
Heated rivalries: Phenological variation modifies competition for pollinators among arctic plants |
title_full |
Heated rivalries: Phenological variation modifies competition for pollinators among arctic plants |
title_fullStr |
Heated rivalries: Phenological variation modifies competition for pollinators among arctic plants |
title_full_unstemmed |
Heated rivalries: Phenological variation modifies competition for pollinators among arctic plants |
title_sort |
heated rivalries: phenological variation modifies competition for pollinators among arctic plants |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/gcb.15303 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.15303 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.15303 |
genre |
Climate change Greenland Papaver radicatum Silene acaulis |
genre_facet |
Climate change Greenland Papaver radicatum Silene acaulis |
op_source |
Global Change Biology volume 26, issue 11, page 6313-6325 ISSN 1354-1013 1365-2486 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/gcb.15303 |
container_title |
Global Change Biology |
container_volume |
26 |
container_issue |
11 |
container_start_page |
6313 |
op_container_end_page |
6325 |
_version_ |
1810439870835851264 |