Table 3 The total number of each species captured (Total Captures), total per mist-net (Total), and mean and standard error (SE) of bat captures per mist-net 2003–2004 and 2016–2018 in the National Park Service National Capital Region. Mean change is the 2016–2018 mean minus the 2003–2004 mean of each species. P-values are from Pearson’s t-test. Bat species are: Eptesicus fuscus (Big Brown bat; EPFU), Lasiurus borealis (Eastern Red bat; LABO), Lasiurus cinereus (Hoary bat; LACI), Lasionycteris noctivagans (Silver-haired bat; LANO), Myotis leibii (Eastern Small-footed bat; MYLE), Myotis lucifugus (Little Brown bat; MYLU), Myotis septentrionalis (Northern Long-eared bat; MYSE), Nycticeius humeralis (Evening bat; NYHU) and Perimyotis subflavus (Tri-colored bat; PESU)
Species code | Total captures | 2003–2004 | 2016–2018 | Mean change | P-value | ||
|---|---|---|---|---|---|---|---|
Total | Mean (SE) | Total | Mean (SE) | ||||
EPFU | 958 | 39.73 | 0.54 (0.10) | 165.77 | 1.03 (0.11) | 0.49 | 0.01 |
LABO | 181 | 19.95 | 0.27 (0.06) | 24.01 | 0.15 (0.02) | −0.12 | 0.20 |
LACI | 4 | 0.92 | 0.01 (0.01) | 0.14 | 0.00 (0.00) | −0.01 | 0.25 |
LANO | 13 | 0.00 | 0.00 (0.00) | 2.40 | 0.01 (0.01) | 0.01 | 0.01 |
MYLE | 1 | 0 | 0.00 (0.00) | 0.17 | 0.00 (0.00) | 0.00 | 0.32 |
MYLU | 108 | 33.8 | 0.46 (0.17) | 0.47 | 0.00 (0.00) | −0.46 | 0.01 |
MYSE | 51 | 6.95 | 0.09 (0.03) | 4.83 | 0.03 (0.01) | −0.06 | 0.2 |
NYHU | 4 | 0 | 0.00 (0.00) | 0.68 | 0.00 (0.00) | 0.00 | 0.31 |
PESU | 34 | 10.5 | 0.14 (0.04) | 0.17 | 0.00 (0.00) | −0.14 | 0.00 |