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 16
The second sample must be a random sample for this method to be valid; that is,
marked and unmarked individuals must have the same chance of being captured
in the second sample. The data obtained are M = Number of individuals ...
The second sample must be a random sample for this method to be valid; that is,
marked and unmarked individuals must have the same chance of being captured
in the second sample. The data obtained are M = Number of individuals ...
Page 30
Individuals caught at each sample are first examined for marks, then marked and
released. ... We determine for each sample t: C, = Total number of individuals
caught in sample / R, = Number of individuals already marked when caught in ...
Individuals caught at each sample are first examined for marks, then marked and
released. ... We determine for each sample t: C, = Total number of individuals
caught in sample / R, = Number of individuals already marked when caught in ...
Page 80
20 3 10 CD Q- L. 0 2 4 6 8 10 Number of individuals per sampling unit = 5 c <»
c o o <D 4 10 h- 8 mTTn-^ 0 4 8 12 16 Number of individuals per sampling unit 12
c I A = 10 L 0 4 8 12 16 Number of individuals per sampling unit V 6 4 - ...
20 3 10 CD Q- L. 0 2 4 6 8 10 Number of individuals per sampling unit = 5 c <»
c o o <D 4 10 h- 8 mTTn-^ 0 4 8 12 16 Number of individuals per sampling unit 12
c I A = 10 L 0 4 8 12 16 Number of individuals per sampling unit V 6 4 - ...
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Ecological Methodology Charles J. Krebs,CHARLES L. KREBS,Professor of Zoology Charles J Krebs No preview available - 1999 |
Common terms and phrases
abundance aerial analysis aphids Appendix assumptions bias calculations capture Caughley Chapter clumped coefficient of variation confidence interval confidence limits defined density estimate distance ecological ecologists END-OF-FILE equal catchability equation estimate of population estimate population example Figure finite population FORMAT 2X,'ENTER formula frequency distribution index of dispersion level of precision line transect mark-recapture marked animals Morisita 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 probability problem Program proportion quadrat counts random points random sampling ratio READ regression resource sample size sample sizes sampling unit Seber second sample sequential sampling simple random sampling spatial pattern standard error statistical statistical population stratum study area survival rate Table techniques Total number transformation unmarked variable variance voles
Bibliographic information
| Title | Ecological Methodology |
| Author | Charles J. Krebs |
| Edition | 2, illustrated |
| Publisher | Harper & Row, 1989 |
| Original from | the University of Michigan |
| Digitized | 27 Jan 2010 |
| ISBN | 0060437847, 9780060437848 |
| Length | 654 pages |
| Export Citation | BiBTeX EndNote RefMan |