DBcovs.csv: contains information about measured habitat traits. We measured eight environmental features that may affect bird occurrence at each point count station to determine the functional relationship between habitat traits and the dynamics of bird occupancy: tree species richness (TREERICH), tree density (TREEDENSITY), average tree diameter at breast height (DAP), average arboreal height (TREEHEIGHT), percent tree cover (TREECOVER), shrub species richness (SHRUBRICH), percent shrub cover (SHRUBCOVER), and altitude (ALTITUDE).The relevance of our habitat traits for forestry activities was determined with the advice of local forestry technicians. A single observer visually estimated all vegetation cover variables. We calculated average values for tree diameter at breast height and arboreal height by measuring trees located at the center and at the four cardinal points of each bird count station. The number of point count station (POINT), survey season (SEASON), survey date (DATE), and land use (LANDUSE) are specified.
DBbirds.csv: contains information about bird counts. Column contain information about survey season (SEASON), number of point count repetition (REPETITION), survey date (DATE), observers name (OBSERVER), number of point count station (POINT), survey hour (HOUR), bird species name (SPECIES), and number of detected individuals (INDIVIDUALS). Information about bird survyes: To account for inter-annual and seasonal variability in bird occupancy, we performed five sampling events from 2016 to 2018, which included three winters (January-February) and two summers (June).We surveyed birds in 151 point count stations separated by a minimum distance of 200 m to ensure independent data.We located point count stations following a spatially-balanced sampling design, distributing their number proportionally to the surface covered by each land use across the study site (i.e., 30 stations for C, 10 stations for IM, 48 stations for SM, 25 stations for FS, 38 stations for U-C).Birds were surveyed during a four-hour period beginning at sunrise to cover their peak activity.We recorded all heard or seen bird individuals within 10-min fixed-radius (30 m) point counts. During each sampling season, point count stations were repeatedly surveyed (six replicates per site) by three independent observers who simultaneously counted birds. From the total pool of species, we selected a diverse group of 11 target species, including the Amethyst-throated Hummingbird (Lampornis amethystinus), the Bumblebee Hummingbird (Atthis heloisa), the Spot-crowned Woodcreeper (Lepidocolaptes affinis), the Brown Creeper (Certhia americana), the Brown-backed Solitaire (Myadestes occidentalis), the Russet Nightingale-Thrush (Catharus occidentalis), the Ruddy-capped Nightingale-Thrush (Catharus frantzii), the Olive Warbler (Peucedramus taeniatus), the Chestnut-capped Brushfinch (Arremon brunneinucha), the Golden-browed Warbler (Basileuterus belli), and the Red Warbler (Cardellina rubra).
