DOI: 10.5061/dryad.mkkwh719b
title: Floral visitors and pollinators of Silene migjornensis

description: This dataset contains data on the floral visitor surveys conducted on
 Silene migjornensis in the population of Sa Ràpita (Mallorca, western
 Mediterranean Basin) during the flowering season of 2024 as well as data
 on the taxonomic identification and pollen load of collected specimens
 (number of pollen grains of S. migjornensis and other pollen
 grains loaded).
description: Direct captures of floral visitors observed on <em>S.
 migjornensis</em> flowers and indirect captures using a light tramp
 for nocturnal pollinators (Robinson Mercury Moth Trap) were conducted in
 the natural population in Platja de sa Ràpita (29º 21’N 2º 57’S), once or
 twice a week during April 2024. Floral visitor surveys were conducted at
 2-hour intervals from 18:00 to 4:00 solar time in four non-consecutive
 days along the flowering period. In each survey, the number of floral
 visitors on five groups of 100 flowers were recorded. Captured floral
 visitors were frozen for taxonomic identification and pollen load
 analyses. Reagarding pollen load analyses, pollen was
 extracted from the body surface using cubes of fuchsine glycerogelatin.
 The gel cube was rubbed to the body surface, heated to melt, and mounted
 on a slide for pollen counting and identification under a
 stereomicroscope. To standardise the pollen counts, four fields of view
 were counted using a 4x magnification objective. Pollen identification was
 performed by comparison with a pollen library, which included co-flowering
 plant species from the study site and the surroundings. For each specimen
 captured directly on flowers, pollinator efficacy (calculated as the
 number of pollen grains of <em>S. migjornensis</em>) and
 pollen fidelity (calculated as the percentage of <em>S.
 migjornensis</em> pollen grains relative to the total pollen load)
 were determined<em>.</em>
description: # Floral visitors and pollinators of *Silene migjornensis*
 [https://doi.org/10.5061/dryad.mkkwh719b](https://doi.org/10.5061/dryad.mkkwh719b) ## Description of the data and file structure ### Files and variables #### File: Silene-migjornensis\_pollinators.xlsx **Description:** Floral visitor surveys ##### Variables * Date: date of census * Solar time: time of each census * Census number * No. of floral visitors/100 flowers: number of floral visitors counted on a group of 100 flowers **Description:** Taxa and pollen load ##### Variables * Order: order to which the specimen corresponds * Family: family to which the specimen corresponds * Taxon: lowest taxonomic level that could be identified * Date: date of the specimen was captured * Capture method: manually collected on flowers vs. captured from light traps. * Solar time: time at which the specimen was collected * Floral phase: floral phase on which the specimen was captured. Consequently, this information is available for the floral visitors captured directly on flowers and cells are empty in the case of floral visitors captured from the light traps. * Pollen grains of * Silene migjornensis*: number of pollen grains of * Silene migjornensis* loaded on the body surface of the floral visitor * Pollen grains of other plant species: number of pollen grains of other plant species loaded on the body surface of the floral visitor 'n/a' means 'not available' ## Code/software Microsoft Office 365