DOI: 10.5061/dryad.58n11j4
title: Data from: Effect of pollination strategy, phylogeny and distribution on pollination niches of Euro-Mediterranean orchids

description: 1. Pollination niches are important components of ecological niches and
 have played a major role in the diversification of Angiosperms. In this
 study, we focused on Euro-Mediterranean orchids, which use diverse
 pollination strategies and interact with various functional groups of
 insects. In these orchids, we investigated the determinants of pollination
 niche breadth and overlap by analysing the orchid-pollinator network and
 the factors that may have shaped it. 2. We constructed a database
 reporting 1278 interactions between 243 orchid and 773 pollinator species
 based on a thorough literature review. We then focused on 153 orchid
 species for which phylogenetic data were available. We used Bayesian
 phylogenetic mixed models to study the relationship between specialisation
 (as estimated by the degree and degree in the projected network),
 pollination strategy and breadths of orchids’ spatial and temporal
 distributions, while correcting for the effect of phylogenetic
 relationships among orchid species and sampling effort. We then used a
 singular value decomposition of the orchid-pollinator matrix combined to a
 redundancy and variation partitioning analyses to investigate the
 determinants of similarity in pollination niches between orchids. 3.
 Specialisation was higher in deceptive than in nectar-producing orchids
 and decreased with the breadth of orchids’ spatial distribution. When
 interactions were considered at the insect family level, similarity in
 pollination niches between orchids was solely explained by their
 pollination strategy and phylogeny. By contrast, when they were considered
 at the insect species level, this similarity was primarily explained by
 their geographical range and flowering time, although other factors had
 significant effects as well, with orchids using the same pollination
 strategy, being closely related and growing in the same habitats sharing
 more insect species than expected. 4. Synthesis. Specialisation in
 orchid-pollinator interactions depends on orchids’ pollination strategy
 and geographical range. The pool of insect families with which orchids
 interact depends on their pollination strategy and phylogeny, with
 consistent associations between some functional or phylogenetic groups of
 orchids and some families of pollinators. By contrast, the pool of insect
 species with which orchids interact depends on their spatio-temporal
 distribution, suggesting that at a finer scale, orchid-pollinator
 interactions are more opportunistic than previously thought.
description: country-level
 geographical range dataCountries in which each
 orchid species occurs. Data from Delforge, P. (2005). Guide des Orchidées
 d’Europe, d’Afrique du Nord et du Proche-Orient. Delachaux et Niestlé,
 Neuchâtel-Paris, Switzerland, 640p.country-level_geographical_range_data.xlsxfine-scale geographical range dataCGRS cells in which each orchid species occurs. Data from GBIF.fine-scale_geographical_range_data.xlsxflowering time dataTime of the year in which each orchid species flowers. Data from Delforge, P. (2005). Guide des Orchidées d’Europe, d’Afrique du Nord et du Proche-Orient. Delachaux et Niestlé, Neuchâtel-Paris, Switzerland, 640p.flowering_time_data.xlsxhabitat dataMain habitats of each orchid species. Data from Delforge, P. (2005). Guide des Orchidées d’Europe, d’Afrique du Nord et du Proche-Orient. Delachaux et Niestlé, Neuchâtel-Paris, Switzerland, 640p.habitat_data.xlsxorchid-pollinator dataInteractions between orchid and pollinator species. Data from the literature. Full_database: database with 243 orchid species and 773 pollinator species. Reduced_database: database with 153 orchid species (i.e. orchid species for which phylogenetic data were available) and 726 pollinator specie.orchid-pollinator_data.xlsxphylogenetic dataPhylogenetic tree of the 153 orchid species reconstructed from 7 genes using MrBayes. Data from GenBank.phylogenetic_data.trepollination strategy dataPollination strategy of each orchid species. Data from Claessens, J., & Kleynen, J. (2016). Orchidées d’Europe: Fleur et pollinisation. Mèze, 448p.pollination_strategy_data.xlsxREADME file