Full Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Estimating Species Richness Using the Jackknife Procedure.
Author Heltshe, J. F. ; Forrester, N. E. ;
CORP Author Rhode Island Univ., Kingston.;Environmental Research Lab., Narragansett, RI.
Year Published 1984
Report Number EPA-R-807031; EPA-600/D-84-031 ; ERLN-X77
Stock Number PB84-148832
Additional Subjects Species ; Ecology ; Communities ; Sampling ; Estimates ; Jackknife method ; Biostatistics
Library Call Number Additional Info Location Last
NTIS  PB84-148832 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 22p
Abstract An exact expression is given for the jackknife estimate of the number of species in a community and its variance when one uses quadrat sampling procedures. The jackknife estimate is a function of the number of species that occur in one and only one quadrat. The variance of the number of species, and approximate two sided confidence intervals can be constructed. The behavior of the jackknife estimate as effected by quadrat size, sample size, and sampling area is looked at by simulation.
NTIS Title Notes Technical rept..
PUB Date Free Form 1984
Category Codes 6F; 57H
NTIS Prices PC A02/MF A01
Primary Description 600/05
Document Type NT
Cataloging Source NTIS/MT
Control Number 410422546
Origin NTIS
Type CAT