Table 2.
Summarized spectrophotometric measurements data of ONT eyeshine transmission efficiency (see also Fig. 3)
| Species (N) | Standard length [mm] | Head diameter [mm] | ON depth [mm] | DWS [photons/s/sr/mm2] | ONT eyeshine [photons/s/sr/mm2] (relative to DWS) | PET eyeshine [photons/s/sr/mm2] (relative to DWS) |
|---|---|---|---|---|---|---|
|
T. delaisi
(5) |
46.4 ± 3.8 | 7.3 ± 0.9 | 1.61 ± 0.15 | 1.51 ± 0.34 ×1019 | 3.15 ± 1.81 ×1017
(0.0203 ± 0.0088) |
7.01 ± 2.23 ×1016
(0.0047 ± 0.0010) |
|
T. melanurus
(2) |
30.5 ± 6.4 | 4.4 ± 0.6 | 0.98 ± 0.13 | 1.04 ± 0.11 ×1019 | 2.09 ± 0.46 ×1017
(0.0205 ± 0.0065) |
2.24 ± 0.55 ×1016
(0.0021 ± 0.0003) |
|
P. zvonimiri
(5) |
38.6 ± 6.5 | 6.0 ± 1.2 | 1.49 ± 0.23 | 1.47 ± 0.17 ×1019 | 1.56 ± 0.12 ×1017
(0.0108 ± 0.0018) |
3.04 ± 1.12 ×1016
(0.0022 ± 0.0011) |
|
A. ocellaris
(5) |
25.5 ± 2.2 | 5.6 ± 0.1 | 1.18 ± 0.09 | 1.46 ± 0.16 ×1019 | 1.66 ± 0.63 ×1017
(0.0112 ± 0.0036) |
1.13 ± 0.26 ×1016
(0.0008 ± 0.0001) |
ON depth was estimated by applying relative ON depths from Table 1 to head diameters in this data set. Head diameter was calculated as the mean of head width and height measurements. DWS diffuse white standard, sr steradian