Facilitation of Nothofagus antarctica (Fagaceae) seedlings by the prostrate shrub Empetrum rubrum (Empetraceae) on glacial moraines in Patagonia
Although positive interactions among plants are believed to be common in primary succession, they have rarely been demonstrated on glacial moraines. In Patagonia, the prostrate shrub Empetrum rubrum is dominant in early succession in recently deglaciated valleys, eventually being replaced by the sma...
Published in: | Austral Ecology |
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Online Access: | https://researchers.mq.edu.au/en/publications/7087b85e-a60c-4bca-9cee-34dd93525b4c https://doi.org/10.1111/j.1442-9993.2005.01531.x http://www.scopus.com/inward/record.url?scp=31344436956&partnerID=8YFLogxK |
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/7087b85e-a60c-4bca-9cee-34dd93525b4c 2024-09-15T17:46:46+00:00 Facilitation of Nothofagus antarctica (Fagaceae) seedlings by the prostrate shrub Empetrum rubrum (Empetraceae) on glacial moraines in Patagonia Henríquez, Juan Marcos Lusk, Christopher H. 2005-12 https://researchers.mq.edu.au/en/publications/7087b85e-a60c-4bca-9cee-34dd93525b4c https://doi.org/10.1111/j.1442-9993.2005.01531.x http://www.scopus.com/inward/record.url?scp=31344436956&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Henríquez , J M & Lusk , C H 2005 , ' Facilitation of Nothofagus antarctica (Fagaceae) seedlings by the prostrate shrub Empetrum rubrum (Empetraceae) on glacial moraines in Patagonia ' , Austral Ecology , vol. 30 , no. 8 , pp. 877-882 . https://doi.org/10.1111/j.1442-9993.2005.01531.x Nurse plant Positive interactions Primary succession article 2005 ftmacquarieunicr https://doi.org/10.1111/j.1442-9993.2005.01531.x 2024-07-03T23:41:10Z Although positive interactions among plants are believed to be common in primary succession, they have rarely been demonstrated on glacial moraines. In Patagonia, the prostrate shrub Empetrum rubrum is dominant in early succession in recently deglaciated valleys, eventually being replaced by the small tree Nothofagus antarctica. This study experimentally evaluates the effects of E. rubrum shrubs on density, biomass, growth and survival of N. antarctica seedlings. The initial density of the seedlings was significantly higher under the canopy of Empetrum than in open areas. A removal experiment was performed to evaluate the influence of Empetrum on survival and growth of seedlings that germinated naturally beneath the canopy of this species. The shrub cover was removed from half of a sample of randomly selected seedlings, and left intact above the remainder. One year later, seedlings with an intact cover of E. rubrum showed significantly higher survival, growth and leaf number than seedlings which had been exposed. The results suggest that the presence of E. rubrum facilitates the establishment of N. antarctica in post-glacial succession, mainly as a result of more favourable microclimatic conditions under the shrub canopy. Article in Journal/Newspaper Antarc* Antarctica Macquarie University Research Portal Austral Ecology 30 8 877 882 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
Nurse plant Positive interactions Primary succession |
spellingShingle |
Nurse plant Positive interactions Primary succession Henríquez, Juan Marcos Lusk, Christopher H. Facilitation of Nothofagus antarctica (Fagaceae) seedlings by the prostrate shrub Empetrum rubrum (Empetraceae) on glacial moraines in Patagonia |
topic_facet |
Nurse plant Positive interactions Primary succession |
description |
Although positive interactions among plants are believed to be common in primary succession, they have rarely been demonstrated on glacial moraines. In Patagonia, the prostrate shrub Empetrum rubrum is dominant in early succession in recently deglaciated valleys, eventually being replaced by the small tree Nothofagus antarctica. This study experimentally evaluates the effects of E. rubrum shrubs on density, biomass, growth and survival of N. antarctica seedlings. The initial density of the seedlings was significantly higher under the canopy of Empetrum than in open areas. A removal experiment was performed to evaluate the influence of Empetrum on survival and growth of seedlings that germinated naturally beneath the canopy of this species. The shrub cover was removed from half of a sample of randomly selected seedlings, and left intact above the remainder. One year later, seedlings with an intact cover of E. rubrum showed significantly higher survival, growth and leaf number than seedlings which had been exposed. The results suggest that the presence of E. rubrum facilitates the establishment of N. antarctica in post-glacial succession, mainly as a result of more favourable microclimatic conditions under the shrub canopy. |
format |
Article in Journal/Newspaper |
author |
Henríquez, Juan Marcos Lusk, Christopher H. |
author_facet |
Henríquez, Juan Marcos Lusk, Christopher H. |
author_sort |
Henríquez, Juan Marcos |
title |
Facilitation of Nothofagus antarctica (Fagaceae) seedlings by the prostrate shrub Empetrum rubrum (Empetraceae) on glacial moraines in Patagonia |
title_short |
Facilitation of Nothofagus antarctica (Fagaceae) seedlings by the prostrate shrub Empetrum rubrum (Empetraceae) on glacial moraines in Patagonia |
title_full |
Facilitation of Nothofagus antarctica (Fagaceae) seedlings by the prostrate shrub Empetrum rubrum (Empetraceae) on glacial moraines in Patagonia |
title_fullStr |
Facilitation of Nothofagus antarctica (Fagaceae) seedlings by the prostrate shrub Empetrum rubrum (Empetraceae) on glacial moraines in Patagonia |
title_full_unstemmed |
Facilitation of Nothofagus antarctica (Fagaceae) seedlings by the prostrate shrub Empetrum rubrum (Empetraceae) on glacial moraines in Patagonia |
title_sort |
facilitation of nothofagus antarctica (fagaceae) seedlings by the prostrate shrub empetrum rubrum (empetraceae) on glacial moraines in patagonia |
publishDate |
2005 |
url |
https://researchers.mq.edu.au/en/publications/7087b85e-a60c-4bca-9cee-34dd93525b4c https://doi.org/10.1111/j.1442-9993.2005.01531.x http://www.scopus.com/inward/record.url?scp=31344436956&partnerID=8YFLogxK |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Henríquez , J M & Lusk , C H 2005 , ' Facilitation of Nothofagus antarctica (Fagaceae) seedlings by the prostrate shrub Empetrum rubrum (Empetraceae) on glacial moraines in Patagonia ' , Austral Ecology , vol. 30 , no. 8 , pp. 877-882 . https://doi.org/10.1111/j.1442-9993.2005.01531.x |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1442-9993.2005.01531.x |
container_title |
Austral Ecology |
container_volume |
30 |
container_issue |
8 |
container_start_page |
877 |
op_container_end_page |
882 |
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1810495129981550592 |