Drivers of black grouse trends in the French Alps

This dataset is composed of three R files: One entitled "BGcounts" that contains an array named "count", composed of counts of black grouse males during lek season conducted on reference sites monitored by a french organisation called "OGM" (https://www.observatoire-galliformes-montagne.com/). The network is composed of 47 counting sites (raws of the dataset), and counts started on various dates on each site (from 1980's to 1990's). Columns (40) are years from 1979 to 2018. Finally,  during the same lek season, up to 3 replicates per site have been done, they are contained by the third dimension of the array. Details of the method and sites can be found in the related article accepted in Diversity and Distribution. Note that because black grouse is a sensitive species in France, data have been randomized, hence site numbers on this dataset do not reflect OGM's original site numbers. A second entitled "elevation_surface" containing scaled (x=x-mean/sd) values of sites elevation (column altitude) and surface. The last one named "covariates" with covariates values, harvested number of birds on reference sites, cable density, snow cover (50% and 100% of bare ground), length of vegetative season, starting date of vegetative season and harvest density. Refer to the Readme file to find details about scaling and years provided.