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 64
... field uses . Thus , if you are sampling mature forest trees you will find that most people use quadrats of 10 x 10 m ; for herbs , 64 Chapter 3 Estimating Abundance: Quadrat Counts and Line Transects Quadrat Size and Shape.
... field uses . Thus , if you are sampling mature forest trees you will find that most people use quadrats of 10 x 10 m ; for herbs , 64 Chapter 3 Estimating Abundance: Quadrat Counts and Line Transects Quadrat Size and Shape.
Page 93
... quadrat counts of plants and animals ( Evans , 1953 ; Patil et al . , 1971b ; Elliott , 1977 ) . You should refer to the more specialized literature if you need to consider other frequency distributions . Johnson and Kotz ( 1969 ) give ...
... quadrat counts of plants and animals ( Evans , 1953 ; Patil et al . , 1971b ; Elliott , 1977 ) . You should refer to the more specialized literature if you need to consider other frequency distributions . Johnson and Kotz ( 1969 ) give ...
Page 121
... quadrat counts exceeds the mean count . Some types of clumped spatial patterns can be described by the negative binomial distribution . Techniques of fitting these distributions to ob- served quadrat counts are described , and ways of ...
... quadrat counts exceeds the mean count . Some types of clumped spatial patterns can be described by the negative binomial distribution . Techniques of fitting these distributions to ob- served quadrat counts are described , and ways of ...
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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