Flower-visitor communities of an arcto-alpine plant– global patterns in species richness, phylogenetic diversity and ecological functioning

Tiusanen, M.; Huotari, T.; Hebert, P.; Andersson, T.; Asmus, A.; Bêty, J.; Davis, E.; Gale, J.; Hardwick, B.; Hik, D.; Körner, C.; Lanctot, R.; Loonen, M.; Partanen, R.; Reischke, K.; Saalfeld, S.; Senez‐Gagnon, F.; Smith, P.; Šulavík, J.; Syvänperä, I.; Urbanowicz, C.; Williams, S.; Woodard, P.; Zaika, Y.; Roslin, T.

Авторы: Mikko Tiusanen, Tea Huotari, Paul Hebert, Tommi Andersson, Ashley Asmus, Joël Bêty, Emma Davis, Jennifer Gale, Bess Hardwick, David Hik, Christian Körner, Richard Lanctot, Maarten Loonen, Rauni Partanen, Karissa Reischke, Sarah Saalfeld, Fanny Senez‐Gagnon, Paul Smith, Ján Šulavík, Ilkka Syvänperä, Christine Urbanowicz, Sian Williams, Paul Woodard, Yulia Zaika, Tomas Roslin
Журнал: Molecular Ecology
Год издания: 2018
Издательство: Blackwell Publishing Inc.
Местоположение издательства: United Kingdom
Первая страница: 1
Последняя страница: 18
DOI: 10.1111/mec.14932
Аннотация: Abstract Pollination is an ecosystem function of global importance. Yet, who visits the flower of specific plants, how the composition of these visitors varies in space and time and how such variation translates into pollination services are hard to establish. The use of DNA barcodes allows us to address ecological patterns involving thousands of taxa that are difficult to identify. To clarify the regional variation in the visitor community of a widespread flower resource, we compared the composition of the arthropod community visiting species in the genus Dryas (mountain avens, family Rosaceae), throughout Arctic and high‐alpine areas. At each of 15 sites, we sampled Dryas visi‐ tors with 100 sticky flower mimics and identified specimens to Barcode Index Numbers (BINs) using a partial sequence of the mitochondrial COI gene. As a measure of ecosystem functioning, we quantified variation in the seed set of Dryas. To test for an association between phylogenetic and functional diversity, we characterized the structure of local visitor communities with both taxonomic and phylogenetic descrip‐ tors. In total, we detected 1,360 different BINs, dominated by Diptera and Hymenoptera. The richness of visitors at each site appeared to be driven by local temperature and precipitation. Phylogeographic structure seemed reflective of geo‐ logical history and mirrored trans‐Arctic patterns detected in plants. Seed set success varied widely among sites, with little variation attributable to pollinator species rich‐ ness. This pattern suggests idiosyncratic associations, with function dominated by few and potentially different taxa at each site. Taken together, our findings illustrate the role of post‐glacial history in the assembly of flower‐visitor communities in the Arctic and offer insights for understanding how diversity translates into ecosystem functioning.
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Flower-visitor communities of an arcto-alpine plant– global patterns in species richness, phylogenetic diversity and ecological functioningстатья Исследовательская статья