#################### ## Metadata for the datasets associated with: ## Urbanization-driven changes in web-building and body size in an orb-web spider ## Maxime Dahirel, Maarten De Cock, Pieter Vantieghem and Dries Bonte ## Journal of Animal Ecology ## corresponding author: MD: maxime.dahirel [at] yahoo.fr ; https://mdahirel.github.io/ ; Twitter: @mdahirel #################### there are three datasets: "individual_spider_info.txt" ; 621 rows; the main dataset with individual trait values "population_densities_info.txt" ; 62 rows; the secondary dataset with population densities "landscape_urbanization_info.txt" ; 21 rows; the dataset used to compare landscape-level metrics ################################################### ##(Groups of) Variables present in all three files: ################################################### "TOWN": name of the town the landscape is located in "landscape_urba" and "local_urba" (categorical variables, three levels): urbanization levels at the landscape (3*3 km) and local (0.2*0.2 km) scales "percent_buildings_landscape" and "percent_buildings_site" percentage of a 3*3 km landscape or a 0.2*0.2 km site occupied by buildings ########################################################################################### #Variables present in both "individual_spider_info.txt" and "population_densities_info.txt" ########################################################################################### "PLOT": code identifying each 3*3 km landscape. If dataset compiled without errors, should be redundant with "TOWN" "Site": code identifying each 0.2*0.2 km site. A version of it can be reconstructed from "TOWN" or "PLOT", "landscape_urba" and "local_urba" "Date": sampling date, format dd/mm/yyyy "LAT" and "LON": latitude and longitude of each 0.2*0.2 km site ########################################################### #Variables present in "population_densities_info.txt" only: ########################################################### "Naraneus": number of adult female Araneus diadematus spiders caught per 0.2*0.2 km site ######################################################## #Variables present in "individual_spider_info.txt" only: ######################################################## "Id": identifier for each spider "CTsize": spider cephalothorax width (cm) "Mesh": average mesh width of the web capture spiral (cm) "EfSurface": area of the web capture zone (cm2) "Eggs": number of mature eggs found inside spiders (only available in some of the individuals) ############################################################# #Variables present in "landscape_urbanization_info.txt" only: ############################################################# "CORINE_percent_artificial": percentage of a 3*3 km landscape total area considered artificial based on CORINE land cover (artificial green spaces are excluded from the calculation)