Species distribution models reveal apparent competitive and facilitative effects of a dominant species on the distribution of tundra plants
Abiotic factors are considered strong drivers of species distribution and assemblages. Yet these spatial patterns are also influenced by biotic interactions. Accounting for competitors or facilitators may improve both the fit and the predictive power of species distribution models (SDMs). We investi...
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ftunivlausanne:oai:serval.unil.ch:BIB_002999DD7600 2024-02-11T10:01:40+01:00 Species distribution models reveal apparent competitive and facilitative effects of a dominant species on the distribution of tundra plants Pellissier, L. Bråthen, K.A. Pottier, J. Randin, C.F. Vittoz, P. Dubuis, A. Yoccoz, N.G. Alm, T. Zimmermann, N.E. Guisan, A. 2010 https://serval.unil.ch/notice/serval:BIB_002999DD7600 https://doi.org/10.1111/j.1600-0587.2010.06386.x eng eng info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1600-0587.2010.06386.x info:eu-repo/semantics/altIdentifier/pissn/0906-7590 https://serval.unil.ch/notice/serval:BIB_002999DD7600 doi:10.1111/j.1600-0587.2010.06386.x Ecography, vol. 33, no. 6, pp. 1004-1014 info:eu-repo/semantics/article article 2010 ftunivlausanne https://doi.org/10.1111/j.1600-0587.2010.06386.x 2024-01-22T01:21:37Z Abiotic factors are considered strong drivers of species distribution and assemblages. Yet these spatial patterns are also influenced by biotic interactions. Accounting for competitors or facilitators may improve both the fit and the predictive power of species distribution models (SDMs). We investigated the influence of a dominant species, Empetrum nigrum ssp. hermaphroditum, on the distribution of 34 subordinate species in the tundra of northern Norway. We related SDM parameters of those subordinate species to their functional traits and their co-occurrence patterns with E. hermaphroditum across three spatial scales. By combining both approaches, we sought to understand whether these species may be limited by competitive interactions and/or benefit from habitat conditions created by the dominant species. The model fit and predictive power increased for most species when the frequency of occurrence of E. hermaphroditum was included in the SDMs as a predictor. The largest increase was found for species that 1) co-occur most of the time with E. hermaphroditum, both at large (i.e. 750 m) and small spatial scale (i.e. 2 m) or co-occur with E. hermaphroditum at large scale but not at small scale and 2) have particularly low or high leaf dry matter content (LDMC). Species that do not co-occur with E. hermaphroditum at the smallest scale are generally palatable herbaceous species with low LDMC, thus showing a weak ability to tolerate resource depletion that is directly or indirectly induced by E. hermaphroditum. Species with high LDMC, showing a better aptitude to face resource depletion and grazing, are often found in the proximity of E. hermaphroditum. Our results are consistent with previous findings that both competition and facilitation structure plant distribution and assemblages in the Arctic tundra. The functional and co-occurrence approaches used were complementary and provided a deeper understanding of the observed patterns by refinement of the pool of potential direct and indirect ecological effects of E. ... Article in Journal/Newspaper Arctic Empetrum nigrum Northern Norway Tundra Université de Lausanne (UNIL): Serval - Serveur académique lausannois Arctic Norway Ecography 33 6 1004 1014 |
institution |
Open Polar |
collection |
Université de Lausanne (UNIL): Serval - Serveur académique lausannois |
op_collection_id |
ftunivlausanne |
language |
English |
description |
Abiotic factors are considered strong drivers of species distribution and assemblages. Yet these spatial patterns are also influenced by biotic interactions. Accounting for competitors or facilitators may improve both the fit and the predictive power of species distribution models (SDMs). We investigated the influence of a dominant species, Empetrum nigrum ssp. hermaphroditum, on the distribution of 34 subordinate species in the tundra of northern Norway. We related SDM parameters of those subordinate species to their functional traits and their co-occurrence patterns with E. hermaphroditum across three spatial scales. By combining both approaches, we sought to understand whether these species may be limited by competitive interactions and/or benefit from habitat conditions created by the dominant species. The model fit and predictive power increased for most species when the frequency of occurrence of E. hermaphroditum was included in the SDMs as a predictor. The largest increase was found for species that 1) co-occur most of the time with E. hermaphroditum, both at large (i.e. 750 m) and small spatial scale (i.e. 2 m) or co-occur with E. hermaphroditum at large scale but not at small scale and 2) have particularly low or high leaf dry matter content (LDMC). Species that do not co-occur with E. hermaphroditum at the smallest scale are generally palatable herbaceous species with low LDMC, thus showing a weak ability to tolerate resource depletion that is directly or indirectly induced by E. hermaphroditum. Species with high LDMC, showing a better aptitude to face resource depletion and grazing, are often found in the proximity of E. hermaphroditum. Our results are consistent with previous findings that both competition and facilitation structure plant distribution and assemblages in the Arctic tundra. The functional and co-occurrence approaches used were complementary and provided a deeper understanding of the observed patterns by refinement of the pool of potential direct and indirect ecological effects of E. ... |
format |
Article in Journal/Newspaper |
author |
Pellissier, L. Bråthen, K.A. Pottier, J. Randin, C.F. Vittoz, P. Dubuis, A. Yoccoz, N.G. Alm, T. Zimmermann, N.E. Guisan, A. |
spellingShingle |
Pellissier, L. Bråthen, K.A. Pottier, J. Randin, C.F. Vittoz, P. Dubuis, A. Yoccoz, N.G. Alm, T. Zimmermann, N.E. Guisan, A. Species distribution models reveal apparent competitive and facilitative effects of a dominant species on the distribution of tundra plants |
author_facet |
Pellissier, L. Bråthen, K.A. Pottier, J. Randin, C.F. Vittoz, P. Dubuis, A. Yoccoz, N.G. Alm, T. Zimmermann, N.E. Guisan, A. |
author_sort |
Pellissier, L. |
title |
Species distribution models reveal apparent competitive and facilitative effects of a dominant species on the distribution of tundra plants |
title_short |
Species distribution models reveal apparent competitive and facilitative effects of a dominant species on the distribution of tundra plants |
title_full |
Species distribution models reveal apparent competitive and facilitative effects of a dominant species on the distribution of tundra plants |
title_fullStr |
Species distribution models reveal apparent competitive and facilitative effects of a dominant species on the distribution of tundra plants |
title_full_unstemmed |
Species distribution models reveal apparent competitive and facilitative effects of a dominant species on the distribution of tundra plants |
title_sort |
species distribution models reveal apparent competitive and facilitative effects of a dominant species on the distribution of tundra plants |
publishDate |
2010 |
url |
https://serval.unil.ch/notice/serval:BIB_002999DD7600 https://doi.org/10.1111/j.1600-0587.2010.06386.x |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Empetrum nigrum Northern Norway Tundra |
genre_facet |
Arctic Empetrum nigrum Northern Norway Tundra |
op_source |
Ecography, vol. 33, no. 6, pp. 1004-1014 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1600-0587.2010.06386.x info:eu-repo/semantics/altIdentifier/pissn/0906-7590 https://serval.unil.ch/notice/serval:BIB_002999DD7600 doi:10.1111/j.1600-0587.2010.06386.x |
op_doi |
https://doi.org/10.1111/j.1600-0587.2010.06386.x |
container_title |
Ecography |
container_volume |
33 |
container_issue |
6 |
container_start_page |
1004 |
op_container_end_page |
1014 |
_version_ |
1790597469510303744 |