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 11
... population , one necessary bit of information is the size of the population you wish to harvest . If you are trying ... density is the number of organisms per unit area or volume . A red deer density of four deer per square kilometer is ...
... population , one necessary bit of information is the size of the population you wish to harvest . If you are trying ... density is the number of organisms per unit area or volume . A red deer density of four deer per square kilometer is ...
Page 138
... population density without the need to lay out quadrats . We have ventured far from this original goal because of this fundamental problem : density estimates from all distance methods are sensitive to the spatial pattern . If the ...
... population density without the need to lay out quadrats . We have ventured far from this original goal because of this fundamental problem : density estimates from all distance methods are sensitive to the spatial pattern . If the ...
Page 166
... population size . 4.5 SUMMARY Plotless sampling methods have been developed for the twin purposes of determining the spatial pattern of a population and estimating population density . These methods use distances from random points to ...
... population size . 4.5 SUMMARY Plotless sampling methods have been developed for the twin purposes of determining the spatial pattern of a population and estimating population density . These methods use distances from random points to ...
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Common terms and phrases
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