|
<br />Appendix I. Summary of population estimates generated within Program CAPTURE for adult
<br />humpback chub in Westwater Canyon, 1998-2000. Information for comparison
<br />~' within each year of the study among the six estimators used includes the population
<br />estimate (N), 95% confidence intervals, coefficient of variation (CV), probability of
<br />capture (p-hat), and the model selection criteria.
<br />
<br />•
<br />
<br />L
<br />
<br />
<br />
<br />r
<br />
<br />Year Estimator N Confidence CV p-hat Model
<br /> Interval* Selection
<br /> Criteria
<br />1998 M° 4,744 3,085-7,462 0.23 0.035 1.00
<br /> (3,760-14,665 )
<br /> Jackknife M~, 958 902-1,022 0.03 0.173 0.84
<br /> Darroch M~ 3,190 2,427-4,251 0.14 0.050 0.00
<br /> (2,860-24,710)
<br /> Chao Mth 6,723 3,972-11,647 0.28 0.023 0.46
<br /> Chao Mt 6,243 3,770-10,579 0.27 0.030 -
<br /> Chao Mh 9,848 5,722-17,224 0.29 0.017 -
<br />1999 M° 2,215 1,322-3,863 0.28 0.041 0.24
<br /> )
<br />1,608-7,508
<br /> Jackknife Mh 525 484-573 0.04 0.175 0.15
<br /> Darroch Mt 2,670 1,551-4,766 0.30 0.033 0.00
<br /> (1,673-6,613)
<br /> Chao Mtk 3,059 1,637-5,961 0.34 0.030 0.36
<br /> Chao Mt 2,699 1,502-5,057 0.32 0.033 -
<br /> Chao Mh 4,460 2,326-8,803 0.35 0.021 -
<br />2000 M° 2,201 1,308-3,$55 0.28 0.041 0.74
<br /> (1,335-4,124)
<br /> Jackknife Mb 509 469-556 0.04 0.178 0.74
<br /> Darroch Mt 1,713 1,116-2,728 0.23 0.053 0.60
<br /> (1,218-3,978)
<br /> Chao Mth 2,216 1,276--4,028 0.30 0.040 0.62
<br /> Chao M~ 1,862 1,134-3,199 0.27 0.047 -
<br /> Chao Mh 3,102 1,781-5,571 0.30 0.029 -
<br />*95% confidence intervals are provided for all estimators. Profile likelihood intervals are provided
<br />in parentheses for Mo and the Darroch Mt.
<br />29
<br />
|