DATA:      Everts (1990), van der Voet (1987), Everts et al. (1989)
DIRECTORY: \CANOCO\SAMPLES\PERMUTIO\BACI1SPE
PROBLEM:   Does spraying with deltamethrin affect Oedothorax apicatus females?
ILLUSTRATION OF:
+ the analysis of a univariate analysis of a BACI design by permutation methods
+ univariate randomized intervention analysis (Carpenter et al. 1989)
+ how to account for autocorrelation in time in an unreplicated BACI experiment
+ exploiting the facilities of the split-plot permutation set-up in CANOCO
+ dependent permutations
+ specifying a permutation file
_______________________________________________________________________________
FILE TYPE    |  FILE NAME    |         DESCRIPTION
-------------+---------------+-------------------------------------------------
 SPECIES     | oedo_api.dta  | counts of the spider Oedothorax apicatus from
             |               |  a control site and an impact site, sampled 
             |               |  22 weeks
ENVIRONMENT  | toxicant.dta  | indicator whether spraying has occurred at
             |               |  a site, and a putative impact size proxy 
             |               |  (9-times since spraying)
COVARIABLES  | timesite.dta  | time and site indicators
  OTHER      | permutio.dta  | example of a permutation file
 PROJECTS    | baci1.con     | permutation test of "no impact" against a 
             |               |  "constant impact" model using random 
             |               |  permutation of differences
             | baci2.con     | permutation test of "no impact" against a 
             |               |  "constant impact" model using dependent 
             |               |  time shifts
             | baci3.con     | permutation test of "no impact" against an
             |               |  instantaneous effect with extinction using
             |               |  dependent time shifts
             | baci4.con     | as baci3.con with free impact model
             | permfile.con  | example project that uses a permutation file
-------------+---------------+-------------------------------------------------

Everts, J.W.(1990): Sensitive indicators of side-effects of pesticides on the
epigeal fauna of arable land. PhD thesis, Agricultural University, Wageningen.

Everts, J.W., Aukema, B., Hengeveld, R. & Koeman, J.H. (1989): Side-effects
of pesticides on ground-dwelling predatory arthropods in arable ecosystems.
Environmental Pollution, 9: 203-225.

Van der Voet, H.(1987): Het bepalen van behandelingseffecten op grond van
korte tijdreeksen. Rapport ITI-TNO 87 ITI B 30.