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 136
... random points to the nearest organism 2. From a random organism to its nearest neighbor There is , in principle , no problem with setting out random points in a large area , although it may be very time consuming and less easy to ...
... random points to the nearest organism 2. From a random organism to its nearest neighbor There is , in principle , no problem with setting out random points in a large area , although it may be very time consuming and less easy to ...
Page 144
... random point O is located within the study area , and the distance x is ... points like this . ( ○ ) Individual organisms . The standard error of Ñ is ... random points is selected , often along a transect line , with the constraint that ...
... random point O is located within the study area , and the distance x is ... points like this . ( ○ ) Individual organisms . The standard error of Ñ is ... random points is selected , often along a transect line , with the constraint that ...
Page 147
Charles J. Krebs. Measure these distances Random point Transect line Figure 4.6 Point - quarter method of density estimation . The area around each random point is subdivided into four 90 ° quadrants and the nearest organism to the random ...
Charles J. Krebs. Measure these distances Random point Transect line Figure 4.6 Point - quarter method of density estimation . The area around each random point is subdivided into four 90 ° quadrants and the nearest organism to the random ...
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abundance aerial analysis animals Appendix approach approximate assume assumptions calculations catchability caught Chapter coefficient confidence interval confidence limits CONTINUE correction cost counts defined density discussed distance distribution ecological ecologists Enter equal equation estimate example expected experiment field Figure finite follows FORMAT FORMAT 2X formula frequency given gives hypothesis illustrates marked mean measure method nearest negative binomial neighbor niche normal Note Number of individuals observed obtained organisms pattern plot Poisson possible precision probability problem procedure Program proportion quadrat random random sampling ratio READ regression relative replacement resource rule sample size sampling unit selected showed similarity simple sizes spatial species square standard error statistical stratum Table techniques Total number transect transformation usually variable variance wish WRITE