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MBA Results


  • 287,304 occurrence records were included from the MBA data set
  • 34,499 distinct localities were extracted
Localities were compared to georeferences done in the MaNIS and HerpNet projects to determine georeferences based on published best practices (Chapman and Wieczorek 2006). These georeferences (51 localities for 10,698 occurrence records) were substituted for those from the Mexican Bird Atlas, which lack measures of uncertainty.
  • 1,834 (5.3%) localities could not be georeferenced.

Occurrence Records - the number of original records processed under the Mexican Bird Atlas Project.
Unique Localities - the number of distinct localities among the Mexican Bird Atlas Project occurrence records.
Localities from MaNIS/HerpNet - the number of distinct locality records for which georeferences produced under MaNIS or HerpNet were substituted for those in the Mexican Bird Atlas Project.
Georefed Occurrences - the number of occurrence records with georeferences after the Mexican Bird Atlas Project (with percentage).


Institution Occurrence Records Unique Localities Localities from MaNIS/HerpNet Georefed Occurrences
AMNH 15838 1802 20 15032 (94.9%)
ANSP 2089 312 12 2036 (97.5%)
CAS 6657 1248 7 6588 (99.0%)
CM 8204 892 4 8180 (99.7%)
CMN 4646 1446 2 4562 (98.2%)
CNAV 21712 6754 0 21254 (97.9%)
CUMV (Cornell) 5068 1378 15 5027 (99.2%)
DENV 675 88 7 614 (91.0%)
DMNH 16733 4259 9 16476 (98.5%)
FLMNH 2326 504 12 2292 (98.5%)
FMNH 12089 787 17 11953 (98.9%)
IOWA 22 6 1 22 (100.0%)
KUNHM 8538 1507 19 8363 (98.0%)
LACM 3371 576 7 3321 (98.5%)
LSUMZ** 17841 3577 5 17778 (99.6%)
MCZ 21289 529 17 20718 (97.3%)
MHP 120 35 4 120 (100.0%)
MLZ 43645 2491 6 43386 (99.4%)
MMNH 11643 2054 12 11413 (98.0%)
MSU 314 68 1 276 (87.9%)
MVZ 9255 1028 8 9170 (99.1%)
MZFC 14955 1424 4 14931 (99.8%)
OMNH 1 1 0 0 (0.0%)
ROM 2193 557 13 2101 (95.8%)
SDNHM 6527 627 5 6436 (98.6%)
TCWC 1567 338 3 1531 (97.7%)
UAZ (Arizona) 1657 415 5 1642 (99.1%)
UBCMZ 2017 78 3 2012 (99.8%)
UCLA 5560 286 3 5514 (99.2%)
UMMZ 13317 1085 10 13044 (98.0%)
UNSM (Nebraska) 87 10 3 87 (100.0%)
USNM (Smithsonian) 9896 1151 34 9714 (98.2%)
UWBM** 547 255 5 522 (95.4%)
WFVZ 12604 1795 10 12561 (99.7%)
YPM 4301 348 12 4244 (98.7%)
Institution Occurrence Records Unique Localities Localities from MaNIS/HerpNet Georefed Occurrences