Ecological MethodologyEcological Methodology, Second Edition provides a balance of material on animal and plant populations, and teaches students of ecology how to design efficient tests in order to obtain maximum precision with minimal work. |
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Page 154
... Eberhardt's Index of Dispersion One index of dispersion that can be used on random- point - to - nearest - organism distances was suggested by Eberhardt ( 1967 ) and analyzed further by Hines and Hines ( 1979 ) : IE = +1 ( 4.34 ) ...
... Eberhardt's Index of Dispersion One index of dispersion that can be used on random- point - to - nearest - organism distances was suggested by Eberhardt ( 1967 ) and analyzed further by Hines and Hines ( 1979 ) : IE = +1 ( 4.34 ) ...
Page 162
... Eberhardt ( 1982 ) . If an index of population size ( like roadside counts ) can be made before and after the removal of a known number of individuals , it is possible to use the indices to estimate absolute density . Eberhardt ( 1982 ) ...
... Eberhardt ( 1982 ) . If an index of population size ( like roadside counts ) can be made before and after the removal of a known number of individuals , it is possible to use the indices to estimate absolute density . Eberhardt ( 1982 ) ...
Page 631
... Eberhardt , L. L. 1967. Some developments in ' distance sampling ' . Biometrics 23 : 207-216 . Eberhardt , L. L. 1969. Population estimates from recapture frequencies . J. Wildl . Manage . 33 : 28-39 . Eberhardt , L. L. 1978a . Transect ...
... Eberhardt , L. L. 1967. Some developments in ' distance sampling ' . Biometrics 23 : 207-216 . Eberhardt , L. L. 1969. Population estimates from recapture frequencies . J. Wildl . Manage . 33 : 28-39 . Eberhardt , L. L. 1978a . Transect ...
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abundance aphids Appendix assumptions bias calculations capture Caughley census zone Chapter chi-square clumped coefficient of variation confidence interval confidence limits defined density estimate distance ecological ecologists END-OF-FILE Enter equal catchability equation estimate of population estimate population example Figure finite population FORMAT 2X formula frequency distribution index of dispersion line transect mark-recapture marked animals method n₁ nearest neighbor negative binomial distribution niche breadth niche overlap normal distribution null hypothesis Number of animals Number of individuals number of quadrats number of samples number of species observed obtained parameters Petersen plot Poisson distribution population density population estimate problem Program proportion quadrat counts random points random sampling ratio READ recaptures regression sample size sample sizes sampling unit Schnabel Seber second sample simple random sampling spatial pattern standard error statistical statistical population stratum study area survival rate Table techniques Total number transformation variable variance