Data usage notes for NeoBiota article: Do dense layers of invasive plants elevate the foraging intensity of small mammals in temperate deciduous forests? A case study from Pennsylvania, USA Three datasets are provided: small mammal live trap data (Trap Data.csv), small mammal seed tray data (Seed Tray Data.csv), and vegetation surveys (Vegetation data.csv). The data dictionary below defines all parameters in the datasets. #### Trap data.csv ##### Site.ID: unique site identifier for each site. EH=Eden Hall site, LT=Latodami, IR=Irwin Run Trap.Condition: E=empty, T=thrown, D=damaged or destroyed, M=mammal present in trap Weather: qualitative weather descriptor Mammal: the genus and species of mammal collected in trap Sex: the sex of the specimen Mass: the mass of the small mammal, when present, in grams Ticks: whether or not ticks were observed on small mammal D_deploy: date when the trap was set D_collect: date when the trap was collected Remove_status: whether the date represents a period before barberry removal (B) or after (A) ##### ##### Seed data.csv ##### Site.ID: unique site identifier for each site. EH=Eden Hall site, LT=Latodami, IR=Irwin Run Deploy.date: date when the trap was set Collect.date: date when the trap was collected Tray.intact: whether or not the tray was found intact after the deployment period Feces: if small mammal feces were present in trays Tracks: if small mammal tracks were present in trays Seed.mass: remaining seed mass, in grams; 6 grams were initially deployed Remove_status: whether the date represents a period before barberry removal (B) or after (A) ##### ##### Vegetation data.csv ##### This dataset represents the two square meter vegetation surveys conducted at each site. Blank cells represent NA values for the sub-survey square meter. Each row represents 1 or 2 individual plants encountered in the sub-survey. Site.ID: unique site identifier for each site. EH=Eden Hall site, LT=Latodami, IR=Irwin Run survey.1: barberry stem diameters for all stems encountered in the first square meter survey survey.2: barberry stem diameters for all stems encountered in the second square meter survey dry.mass.1: estimated dry mass of the corresponding barberry plant in the first sub-survey based on allometric equation in Link et al. 2018 dry.mass.2: estimated dry mass of the corresponding barberry plant in the second sub-survey based on allometric equation in Link et al. 2018