Heated rivalries: phenological variation modifies competition for pollinators among arctic plants
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 Gre...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/326562 2024-01-07T09:40:37+01:00 Heated rivalries: phenological variation modifies competition for pollinators among arctic plants Tiusanen, Mikko Kankaanpää, Tuomas Schmidt, Niels Martin Roslin, Tomas Research Centre for Ecological Change Spatial Foodweb Ecology Group Department of Agricultural Sciences 2021-02-16T14:38:01Z 13 application/pdf http://hdl.handle.net/10138/326562 eng eng Wiley 10.1111/gcb.15303 Tiusanen , M , Kankaanpää , T , Schmidt , N M & Roslin , T 2020 , ' Heated rivalries: phenological variation modifies competition for pollinators among arctic plants ' , Global Change Biology , vol. 26 , no. 11 , pp. 6313-6325 . https://doi.org/10.1111/gcb.15303 ORCID: /0000-0002-9361-0777/work/89116281 ORCID: /0000-0002-2957-4791/work/89117882 df808575-1951-4b48-a7f9-c9564db92b54 http://hdl.handle.net/10138/326562 000568853400001 cc_by openAccess info:eu-repo/semantics/openAccess ABUNDANCE CLIMATE VARIATION COMMUNITY DIVERSITY ELEVATION INTERACTION NETWORKS MASS-FLOWERING CROPS OVERLAP SPECIALIZATION TIME arctic ecology climate change effects competition for pollination flowering phenology indirect competition phenology shift pollination 1181 Ecology evolutionary biology Article publishedVersion 2021 ftunivhelsihelda 2023-12-14T00:06:04Z 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 x octopetala, the relative timing of other species shifted along the environmental gradient, withSilene acaulisandPapaver radicatumflowering earlier toward higher elevation. This shift resulted in larger niche overlap, allowing for an increased potential for competition for pollination. Meanwhile,Dryasemerged as a superior competitor by attracting 97.2% of flower visits. HigherDryasdensity resulted in reduced insect visits and less pollen ofS. acaulisbeing carried by pollinators, causing reduced seed set byS. 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. Peer reviewed Article in Journal/Newspaper Arctic Arctic Climate change Greenland HELDA – University of Helsinki Open Repository Arctic Greenland Global Change Biology 26 11 6313 6325 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
ABUNDANCE CLIMATE VARIATION COMMUNITY DIVERSITY ELEVATION INTERACTION NETWORKS MASS-FLOWERING CROPS OVERLAP SPECIALIZATION TIME arctic ecology climate change effects competition for pollination flowering phenology indirect competition phenology shift pollination 1181 Ecology evolutionary biology |
spellingShingle |
ABUNDANCE CLIMATE VARIATION COMMUNITY DIVERSITY ELEVATION INTERACTION NETWORKS MASS-FLOWERING CROPS OVERLAP SPECIALIZATION TIME arctic ecology climate change effects competition for pollination flowering phenology indirect competition phenology shift pollination 1181 Ecology evolutionary biology Tiusanen, Mikko Kankaanpää, Tuomas Schmidt, Niels Martin Roslin, Tomas Heated rivalries: phenological variation modifies competition for pollinators among arctic plants |
topic_facet |
ABUNDANCE CLIMATE VARIATION COMMUNITY DIVERSITY ELEVATION INTERACTION NETWORKS MASS-FLOWERING CROPS OVERLAP SPECIALIZATION TIME arctic ecology climate change effects competition for pollination flowering phenology indirect competition phenology shift pollination 1181 Ecology evolutionary biology |
description |
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 x octopetala, the relative timing of other species shifted along the environmental gradient, withSilene acaulisandPapaver radicatumflowering earlier toward higher elevation. This shift resulted in larger niche overlap, allowing for an increased potential for competition for pollination. Meanwhile,Dryasemerged as a superior competitor by attracting 97.2% of flower visits. HigherDryasdensity resulted in reduced insect visits and less pollen ofS. acaulisbeing carried by pollinators, causing reduced seed set byS. 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. Peer reviewed |
author2 |
Research Centre for Ecological Change Spatial Foodweb Ecology Group Department of Agricultural Sciences |
format |
Article in Journal/Newspaper |
author |
Tiusanen, Mikko Kankaanpää, Tuomas Schmidt, Niels Martin Roslin, Tomas |
author_facet |
Tiusanen, Mikko Kankaanpää, Tuomas Schmidt, Niels Martin 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 |
2021 |
url |
http://hdl.handle.net/10138/326562 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Climate change Greenland |
genre_facet |
Arctic Arctic Climate change Greenland |
op_relation |
10.1111/gcb.15303 Tiusanen , M , Kankaanpää , T , Schmidt , N M & Roslin , T 2020 , ' Heated rivalries: phenological variation modifies competition for pollinators among arctic plants ' , Global Change Biology , vol. 26 , no. 11 , pp. 6313-6325 . https://doi.org/10.1111/gcb.15303 ORCID: /0000-0002-9361-0777/work/89116281 ORCID: /0000-0002-2957-4791/work/89117882 df808575-1951-4b48-a7f9-c9564db92b54 http://hdl.handle.net/10138/326562 000568853400001 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Global Change Biology |
container_volume |
26 |
container_issue |
11 |
container_start_page |
6313 |
op_container_end_page |
6325 |
_version_ |
1787421468943974400 |