Germinability of arctic plants is high in perceived optimal conditions but low in the field
Sexual reproduction is crucial for plant populations to track and adapt to climate change, but it is uncertain to what degree arctic vascular plants reproduce by seed. Several studies on arctic species show low germination. To re-examine seed germination and evaluate factors limiting sexual reproduc...
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2011
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crcansciencepubl:10.1139/b11-022 2023-12-17T10:24:47+01:00 Germinability of arctic plants is high in perceived optimal conditions but low in the field Müller, Eike Cooper, Elisabeth J. Alsos, Inger Greve 2011 http://dx.doi.org/10.1139/b11-022 http://www.nrcresearchpress.com/doi/full-xml/10.1139/b11-022 http://www.nrcresearchpress.com/doi/pdf/10.1139/b11-022 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Botany volume 89, issue 5, page 337-348 ISSN 1916-2790 1916-2804 Plant Science Ecology Ecology, Evolution, Behavior and Systematics journal-article 2011 crcansciencepubl https://doi.org/10.1139/b11-022 2023-11-19T13:39:20Z Sexual reproduction is crucial for plant populations to track and adapt to climate change, but it is uncertain to what degree arctic vascular plants reproduce by seed. Several studies on arctic species show low germination. To re-examine seed germination and evaluate factors limiting sexual reproduction, seeds of 6–22 arctic species were germinated in five different, increasingly more realistic, conditions. Thirteen out of 15 species that were tested in an earlier study in Svalbard, Norway, germinated better in our study. Compared with perceived optimal conditions in a growth chamber, average germination per species was 6%–52% lower in five out of six species germinating at a colder temperature in soil, 36%–64% lower when germinating outdoors in soil, 49%–91% lower when germinating in a moss covered moraine, and 55%–91% lower when germinating in open soil on a moraine. Germination outdoors was below 5% in 10 out of 13 species and not correlated to germination in perceived optimal conditions. The high germination compared with earlier studies suggests that climate warming has already increased seed viability. However, caution should be taken when evaluating species-recruitment potential based on laboratory studies, as germination in the field was limited by species-specific responses to low temperatures, moisture, predation, and safe-site availability. Article in Journal/Newspaper Arctic Climate change Svalbard Canadian Science Publishing (via Crossref) Arctic Svalbard Norway Botany 89 5 337 348 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Plant Science Ecology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Plant Science Ecology Ecology, Evolution, Behavior and Systematics Müller, Eike Cooper, Elisabeth J. Alsos, Inger Greve Germinability of arctic plants is high in perceived optimal conditions but low in the field |
topic_facet |
Plant Science Ecology Ecology, Evolution, Behavior and Systematics |
description |
Sexual reproduction is crucial for plant populations to track and adapt to climate change, but it is uncertain to what degree arctic vascular plants reproduce by seed. Several studies on arctic species show low germination. To re-examine seed germination and evaluate factors limiting sexual reproduction, seeds of 6–22 arctic species were germinated in five different, increasingly more realistic, conditions. Thirteen out of 15 species that were tested in an earlier study in Svalbard, Norway, germinated better in our study. Compared with perceived optimal conditions in a growth chamber, average germination per species was 6%–52% lower in five out of six species germinating at a colder temperature in soil, 36%–64% lower when germinating outdoors in soil, 49%–91% lower when germinating in a moss covered moraine, and 55%–91% lower when germinating in open soil on a moraine. Germination outdoors was below 5% in 10 out of 13 species and not correlated to germination in perceived optimal conditions. The high germination compared with earlier studies suggests that climate warming has already increased seed viability. However, caution should be taken when evaluating species-recruitment potential based on laboratory studies, as germination in the field was limited by species-specific responses to low temperatures, moisture, predation, and safe-site availability. |
format |
Article in Journal/Newspaper |
author |
Müller, Eike Cooper, Elisabeth J. Alsos, Inger Greve |
author_facet |
Müller, Eike Cooper, Elisabeth J. Alsos, Inger Greve |
author_sort |
Müller, Eike |
title |
Germinability of arctic plants is high in perceived optimal conditions but low in the field |
title_short |
Germinability of arctic plants is high in perceived optimal conditions but low in the field |
title_full |
Germinability of arctic plants is high in perceived optimal conditions but low in the field |
title_fullStr |
Germinability of arctic plants is high in perceived optimal conditions but low in the field |
title_full_unstemmed |
Germinability of arctic plants is high in perceived optimal conditions but low in the field |
title_sort |
germinability of arctic plants is high in perceived optimal conditions but low in the field |
publisher |
Canadian Science Publishing |
publishDate |
2011 |
url |
http://dx.doi.org/10.1139/b11-022 http://www.nrcresearchpress.com/doi/full-xml/10.1139/b11-022 http://www.nrcresearchpress.com/doi/pdf/10.1139/b11-022 |
geographic |
Arctic Svalbard Norway |
geographic_facet |
Arctic Svalbard Norway |
genre |
Arctic Climate change Svalbard |
genre_facet |
Arctic Climate change Svalbard |
op_source |
Botany volume 89, issue 5, page 337-348 ISSN 1916-2790 1916-2804 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b11-022 |
container_title |
Botany |
container_volume |
89 |
container_issue |
5 |
container_start_page |
337 |
op_container_end_page |
348 |
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1785570239412436992 |