2012 COURSE DATES: AUGUST 4 – 17, 2012 - Sirenian International

DICK AND HINES: BOTTLENOSE DOLPHIN ABUNDANCE 613
Table 1. Model results for each of the tested models. Data were ungrouped, pooled across all surveys sets, and truncated at 90 m (n = 33).
No. of parameters
Model
(Key + Adjustment) Key Adjustments AIC Ns
ˆ CV(%) Dˆ CV(%) Ds
ˆ CV(%) P CV(%) K-S p
CDS
Uniform + cosine 0 1 287.75 220 25.6 0.763 25.6 0.306 21.2 0.57 10.0 0.195
Uniform + simple polynomial 0 1 288.04 204 25.0 0.707 25.0 0.272 20.5 0.64 9.0 0.153
Half-normal + cosine 1 0 287.35 227 27.0 0.785 27.0 0.317 22.8 0.55 13.0 0.210
Half-normal + hermite 1 0 287.35 227 27.0 0.785 27.0 0.317 22.8 0.55 13.0 0.210
MCDS with Beaufort sea state as a covariate
Half-normal + cosine 1 0 285.05 216 27.7 0.749 27.7 0.347 23.8 0.50 15.0 0.246
Half-normal + hermite 1 0 285.05 216 27.7 0.749 27.7 0.347 23.8 0.50 15.0 0.246
Hazard-rate + cosine 2 0 291.05 216 28.0 0.749 28.0 0.347 24.1 0.52 15.0 0.243
Note: AIC = Akaike Information Criterion; ˆ Ns = abundance estimate for survey area; ˆ D = estimated density of dolphins/km 2 ; ˆ Ds = estimated
density of clusters/km 2 ; P = detection probability; CV = coefficient of variation; K-S p = Kolmogorov–Smirnov goodness-of-fit p-value.