TABLE 2. Occupancy models evaluating species, habitat, and
environmental effects ranked by Akaike’s information criterion
(ΔAICc). We assessed 67 models but just present models
with ΔAICc ≤ 3. All models were made with the top ranked
detection model p[VOL × ((BW + (TH = CB)) × carp × drum) + ((BW = TH =
CB)) × shad = percids)]. We used top ranked species models for carp
(bigheaded carp), drum (freshwater drum), shad (Clupeidae), and percids
to formulate habitat models and top ranked habitat models to form
environmental models. Covariates include backwater (BW), thalweg (TH),
channel border (CB), Julian date (JUL), weekly water temperature (TEMP),
CV of temperature (CVTEMP), weekly river discharge (DIS), CV of
discharge (CVDIS). (+) indicates additive effects, (x) indicates
interactive effects, and (=) indicates combined variables.