Research Article
The Maryland Amphibian and Reptile Atlas: A Volunteer-Based Distributional Survey
Table 1
Number of occurrence records and search effort of registered MARA volunteers.
| | Volunteer contribution | Mean (per volunteer) | Mode | Frequency of mode | Minimum | Maximum | SD |
| | Records submitted | 28.52 | 1 | 186 | 0.00 | 1069.00 | 106.13 | | Opportunistic records | 5.89 | 1 | 224 | 0.00 | 280.00 | 20.72 | | Active search hours | 12.49 | 0 | 302 | 0.00 | 389.75 | 42.80 | | Quads surveyed | 2.98 | 1 | 334 | 1.00 | 82.00 | 6.92 | | Blocks surveyed | 5.53 | 1 | 316 | 1.00 | 284.00 | 18.76 |
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