| RecYear | | Physical quantity | Year of sample |
| Date | | Date/time | Date of sample |
| Watershed | | Nominal | Watershed name. Watershed (N1A,N4B) |
| Trap | | Physical quantity | Trap Station. Numbered 1-50 for the capture-mark-release grids in each treatment; Numbered 51-100 for the specimen removal grids in each treatment. |
| VoucherNo | | Nominal | Voucher Number. 6-digit number prefixed with NK (eg. NK123456) corresponds to specimen accession number for Museum of Southwestern Biology (University of New Mexico) where voucher specimen materials are being deposited |
| Species | | Nominal | Species code. PMMA=Peromyscus maniculatus; PMLE=Peromyscus leucopus; REME=Reithrodontomys megalotis; REMO=Reithrodontomys montanus; NEFL=Neotoma floridana; MIOC=Microtus ochrogaster; MIPI=Microtus pinetorum; SIHI=Sigmodon hispidus; CHHI=Chaetodipus hispidus; BLHA=Blarina hylophaga; CRPA=Cryptotis parva; SYFL=Sylvalagus floridanus; DIVI=Didelphis virginiana; ZAHU=Zapus hudsonius; ICTR=Ictidomys tridecemlineatus |
| CommonName | | Nominal | Species common name |
| EarTag | | Nominal | Ear Tag |
| RecaptureStatus | | Code list | Recapture Status. Y=Yes (recapture of same year); N=No (new individual); A=Annual (recapture from a previous year) |
| Disp | | Code list | R=Release (capture was released); V=Voucher (capture was collected and processed for museum archive); generally all specimens from capture-mark-release grids are released unless they are found dead in trap or are otherwise collected for specimen voucher purposes; all specimens from removal grids become vouchers. |
| TotalLength | | Physical quantity | Total Length. measurement (mm) from tip of nose to tip of tail when specimen is laid flat on the back, not including tail tuft; brackets indicate inaccurate or incomplete measurement. |
| TailLength | | Physical quantity | Tail Length.measurement (mm) from base to tip of tail when tail is perpendicular to body laid on stomach, not including tail tuft; brackets indicate inaccurate or incomplete measurement. |
| EarLength | | Physical quantity | Ear Length. measurement (mm) from ear notch to furthest edge of pinna. |
| HindFoot | | Physical quantity | Hind Foot Length. measurement (mm) from heel to tip of longest toe nail on left hind foot. |
| Weight | | Physical quantity | Weight. measurement (g) of whole body mass. |
| Sex | | Nominal | Sex. M=Male; F=Female; M?=putative male, F?=putative female, NA=Missing or Not Measured |
| Age | | Code list | Age |
| ReprodCondition | | Nominal | Reproductive Condition. S=Scrotal male; NS=Non-scrotal male; C=vagina closed; O=vagina perforated; S=nipples small; E=nipples enlarged; N=non-lactating; L=lactating; NA=Missing or Not Measured |
| Waypoint | | Physical quantity | Way Point is the georeferenced locality using a GPS unit |
| Comments | | Nominal | Relevant descriptive comments; OTB=old tail bob; NTB=new tail bob; other. |
