Data and code for the paper entitled as "Functional connections between bird eggshell stiffness and nest characteristics through risk of egg collision in nests"

Data and code for the paper entitled as "Functional connections between bird eggshell stiffness and nest characteristics through risk of egg collision in nests", which is accepted by Ecology Letters. This item includes four datasets and an R code used in the study. The four datasets are:<br>1. All_trees.nexPhylogenetic trees downloaded from birdtree.org for 1866 avian species with eggshell data<br>2. Consensus_tree.treConsensus tree for 1850 avian species studied<br>3. Nest_egg_data.csvDataset on the nest characters, eggshell C number and clutch size of the 1850 avian species studied; including the following columns:Species: species names used as the tip labels in the phylogenetic treesOrder: order of the speciesFamily: family of the speciesSpecies_IOC: Scientific names of the species used in the IOC World Bird ListC: C number of the speciesSite: category of nest site (A: Other; B: Tree; C: Non-tree vegetation)Structure: category of nest structure (A: Scrape/Platform; B: Cavity; C: Cup; D: Dome)Attachment: category of nest attachment (A: Basal; B: Lateral/Horizontal; C: Pensile)ClutchSize: clutch size of the species<br>4. C_node_depth.csvDataset on the C number values for the 1850 avian species and their ancestors estimated by BayesTrait; including the following columns:node: node IDs or tip labels in the consensus treeC: C number of the species or the ancestorsnode depth: branch length of the species or the ancestors in the consensus treePasseriformes: passerine status (Y: passerine; N: non-passerine)