Reference library for arctic and boreal bryphytes

Arctic and boreal bryophyte reference library, chloroplast P6-loop trnL (UAA) intron, c-h primers

lemming diet data

DNA metabarcoding diet data on lemming feces samples from Bylot Island. Dataset includes sequence data, environmental variables and validation data for lemming species identification

Availability, use and selection of major food items (>1% of the diet) consumed by lemmings in winter.

<p>Availability is based on biomass of vascular plants and mosses sampled in stream gullies and mesic tundra in August 2010, at peak growth (n = 16 plots). Both availability and use are presented as proportions. Selection was analyzed separately for vascular plants and mosses and availability and use sum to 1 within each of these taxonomic groups (0 = no selection, + = positive selection, − = negative selection; based on 95% confidence interval; signs in parenthesis indicates selection ratio based on 90% confidence interval).</p><p>¹ Ericaceae, which accounted for 58% of all vascular plant biomass, was excluded because it was not consumed by either lemming species.</p><p>² Selection could not be calculated for Bryaceae, Grimmiaceae and Timmiaceae because these plants were not found that year in our availability sampling plots.</p><p>³ Other important moss families present at the site and not consumed by lemmings include Scapaniaceae (availability = 0.228), Amblystegiaceae (0.195), Hylocomiaceae (0.193), Ptilidiaceae (0.043) and Ditrichaceae (0.019).</p><p>Availability, use and selection of major food items (>1% of the diet) consumed by lemmings in winter.</p

Composition of winter diets of collared and brown lemmings.

<p>Diets (mean ± SE) of collared (n = 22) and brown lemming (n = 54) during the winter 2010–11 on Bylot Island, Nunavut, Canada, based on DNA metabarcoding sequences extracted from pellets. Vascular plant and moss families are separated by a dashed line. Other or unidentified items accounted for 0.5% and 1.2% of the collared and brown lemming diet, respectively (not shown on graph). Taxa without dot on the graph were not found. Families are Caryophyllaceae (Caryo), Fabaceae (Faba), Juncaceae (Junca), Poaceae (Poa), Polygonaceae (Polyg), Rosaceae (Rosa), Salicaceae (Salic), Saxifragaceae (Saxif), Aulacomniaceae (Aulac), Bryaceae (Bryac), Dicranaceae (Dicra), Grimmiaceae (Grimm), Polytrichaceae (Polyt) and Timmiaceae (Timm).</p

Food items identified in lemming winter diets.

<p>List of MOTUs (molecular operational taxonomic units) at the subfamily, tribe, genus or species level, identified in lemming winter diets on Bylot Island.</p><p>¹ Species included in Bryaceae in the data analysis, but in Mniaceae in the Bryophyte reference library.</p><p>Food items identified in lemming winter diets.</p