Genetic variation in functional traits influences arthropod community composition in aspen (Populus tremula L.).

We conducted a study of natural variation in functional leaf traits and herbivory in 116 clones of European aspen, Populus tremula L., the Swedish Aspen (SwAsp) collection, originating from ten degrees of latitude across Sweden and grown in a common garden. In surveys of phytophagous arthropods over...

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Auteurs principaux:	Kathryn M Robinson, Pär K Ingvarsson, Stefan Jansson, Benedicte R Albrectsen
Format:	article
Langue:	EN
Publié:	Public Library of Science (PLoS) 2012
Sujets:	Medicine R Science Q
Accès en ligne:	https://doaj.org/article/161e92da60bb4da08c84e8ab5f6f3eef
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spelling	oai:doaj.org-article:161e92da60bb4da08c84e8ab5f6f3eef2021-11-18T07:17:21ZGenetic variation in functional traits influences arthropod community composition in aspen (Populus tremula L.).1932-620310.1371/journal.pone.0037679https://doaj.org/article/161e92da60bb4da08c84e8ab5f6f3eef2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22662190/?tool=EBIhttps://doaj.org/toc/1932-6203We conducted a study of natural variation in functional leaf traits and herbivory in 116 clones of European aspen, Populus tremula L., the Swedish Aspen (SwAsp) collection, originating from ten degrees of latitude across Sweden and grown in a common garden. In surveys of phytophagous arthropods over two years, we found the aspen canopy supports nearly 100 morphospecies. We identified significant broad-sense heritability of plant functional traits, basic plant defence chemistry, and arthropod community traits. The majority of arthropods were specialists, those coevolved with P. tremula to tolerate and even utilize leaf defence compounds. Arthropod abundance and richness were more closely related to plant growth rates than general chemical defences and relationships were identified between the arthropod community and stem growth, leaf and petiole morphology, anthocyanins, and condensed tannins. Heritable genetic variation in plant traits in young aspen was found to structure arthropod community; however no single trait drives the preferences of arthropod folivores among young aspen genotypes. The influence of natural variation in plant traits on the arthropod community indicates the importance of maintaining genetic variation in wild trees as keystone species for biodiversity. It further suggests that aspen can be a resource for the study of mechanisms of natural resistance to herbivores.Kathryn M RobinsonPär K IngvarssonStefan JanssonBenedicte R AlbrectsenPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 5, p e37679 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kathryn M Robinson Pär K Ingvarsson Stefan Jansson Benedicte R Albrectsen Genetic variation in functional traits influences arthropod community composition in aspen (Populus tremula L.).
description	We conducted a study of natural variation in functional leaf traits and herbivory in 116 clones of European aspen, Populus tremula L., the Swedish Aspen (SwAsp) collection, originating from ten degrees of latitude across Sweden and grown in a common garden. In surveys of phytophagous arthropods over two years, we found the aspen canopy supports nearly 100 morphospecies. We identified significant broad-sense heritability of plant functional traits, basic plant defence chemistry, and arthropod community traits. The majority of arthropods were specialists, those coevolved with P. tremula to tolerate and even utilize leaf defence compounds. Arthropod abundance and richness were more closely related to plant growth rates than general chemical defences and relationships were identified between the arthropod community and stem growth, leaf and petiole morphology, anthocyanins, and condensed tannins. Heritable genetic variation in plant traits in young aspen was found to structure arthropod community; however no single trait drives the preferences of arthropod folivores among young aspen genotypes. The influence of natural variation in plant traits on the arthropod community indicates the importance of maintaining genetic variation in wild trees as keystone species for biodiversity. It further suggests that aspen can be a resource for the study of mechanisms of natural resistance to herbivores.
format	article
author	Kathryn M Robinson Pär K Ingvarsson Stefan Jansson Benedicte R Albrectsen
author_facet	Kathryn M Robinson Pär K Ingvarsson Stefan Jansson Benedicte R Albrectsen
author_sort	Kathryn M Robinson
title	Genetic variation in functional traits influences arthropod community composition in aspen (Populus tremula L.).
title_short	Genetic variation in functional traits influences arthropod community composition in aspen (Populus tremula L.).
title_full	Genetic variation in functional traits influences arthropod community composition in aspen (Populus tremula L.).
title_fullStr	Genetic variation in functional traits influences arthropod community composition in aspen (Populus tremula L.).
title_full_unstemmed	Genetic variation in functional traits influences arthropod community composition in aspen (Populus tremula L.).
title_sort	genetic variation in functional traits influences arthropod community composition in aspen (populus tremula l.).
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/161e92da60bb4da08c84e8ab5f6f3eef
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Genetic variation in functional traits influences arthropod community composition in aspen (Populus tremula L.).

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