Re-opened

The data, thirty years on

The 1996 Excel workbooks and the 2003 SPSS file still open. Every chart on this page is computed from those files — the author's own measurements — not traced from the printed figures. The originals are reproduced separately in the appendix.

Belize · Toledo District, 1994

Mangroves were bigger on the Deep River — with no overlap at all

Sixty-nine Rhizophora mangle stems, measured across six plots in two watersheds.

Deep RiverMonkey River
Deep River 694Deep River 578Deep River 465Monkey River 357Monkey River 250Monkey River 1400mean girth at breast height (cm)

Recomputed from SITEALL.XLS (69 stems, measured July 1994).

Show the numbers
PlotSiteRiverStemsGirth (cm)Height (m)
M4Deep River 6Deep River493.9515.5
M2Deep River 5Deep River778.2312.64
M3Deep River 4Deep River665.4212.81
M6Monkey River 3Monkey River1157.429.68
M5Monkey River 2Monkey River1749.6511.59
M1Monkey River 1Monkey River2440.2210.17
A correction the data makes in the author's favour. The thesis reports the plot ranking exactly right — site four highest, then two, three, six, five, one — but then concludes the Deep River result "may be skewed," because "the two sites with the next biggest trees were in Monkey River." They were not. The plot codes run M1–M6 in order of establishment, and M2 and M3 are Deep River 5 and Deep River 4. All three Deep River plots outrank all three Monkey River plots on girth, diameter, mass and height, with no overlap. Reading the M prefix as "Monkey" cost him his own clearest result.

Fiji · Suva Barrier Reef flat, 1994

Five transects, five different reefs

Line-intercept transects run seaward across the reef flat off Laucala Bay, each scored in ten 10-metre segments. Transect five is bare rock; transect two is more dead coral than living.

Hard coralDead coralAlgal assemblageRubble & rockSandSoft coral
Transect 1Transect 2Transect 3Transect 4Transect 5

Recomputed from ZCRLSTAT.XLS. Percentages are the mean of the ten segments in each transect. "Live coral" pools the hard-coral morphologies and soft coral; the fourteen original category codes are preserved in the underlying data file.

Show the numbers
TransectLive coral %Dead coral %Algae %Rock %Sand %
110.490.025.0411.736.89
234.9560.684.370.00.0
345.8816.8734.920.940.0
491.08.970.00.00.0
56.560.00.092.840.5

Latvia · 260 respondents, 2001–03

What people agreed with most

Mean agreement across all 260 respondents, strongest first. The original four-point scale ran from "very true" to "not true at all"; it is reversed here so that further right means stronger agreement. "Don't know" is excluded from the means and reported separately.

Global warming is a serious problem3.56Polluters should be severely fined or punished3.51Protecting Latvias air is very important to me3.38Protecting my natural environment is importa…3.37I consider myself to be part of nature3.37Protecting the Baltic Sea is very important …3.36Protecting Latvias forests is very important…3.35Protecting Latvias Rivers is very important …3.35Environmental protection is important for my…3.32Helping the environment is important for Lat…3.29Protecting Latvias water resources is very i…3.23Protecting Latvias wetlands is very importan…3.15Latvian culture is important to me3.15Environmental damage negatively impacts me3.131234not true

Recomputed from thesisdatwlabels.sav — seven samples: two rural schools, a Jewish school, farmers, Environment Ministry staff, Rīga residents and expatriates. Showing the fourteen strongest of 31 scale items.

Show the numbers
ItemMeanSDnDon't know
Global warming is a serious problem3.560.6623623
Polluters should be severely fined or punished3.510.6424811
Protecting Latvias air is very important to me3.380.62519
Protecting my natural environment is important to me3.370.5524911
I consider myself to be part of nature3.370.724711
Protecting the Baltic Sea is very important to me3.360.6123722
Protecting Latvias forests is very important to me3.350.6223624
Protecting Latvias Rivers is very important to me3.350.5924018
Environmental protection is important for my well being3.320.5924119
Helping the environment is important for Latvias economic growth3.290.6621444
Protecting Latvias water resources is very important to me3.230.623525
Protecting Latvias wetlands is very important to me3.150.6922634
Latvian culture is important to me3.150.7524911
Environmental damage negatively impacts me3.130.7722336
I am happy3.020.8324020
I am aware of Latvian traditions3.020.5923324
People with more ability should earn more wealth3.00.9122335
Factories that pollute heavily should be shut down2.990.8821149
Maintaining culture is important to me2.950.7322435
The government is doing a good job in protecting our environment2.950.8923822
Economic development is a serious threat to Latvias natural environment2.90.7617474
I understand the environmental situation in Latvia2.890.6620355
If I had more time I would be more interested in protecting my environment2.860.7821444
How I relate to my environment is a product of my cultural heritage2.820.7419365
I have enough money to live comfortably2.530.8224119
I feel satisfied with the state of the environment in Latvia2.380.7621739
I am aware of ways for me to be more involved in conserving Latvias environment2.350.7915996
There are actions that I could take which would be effective in helping the environment2.310.7917879
Environmental protection is the responsibility of the government and not the public1.930.8623225
I have participated in environmental activist groups1.890.7524613
The government is doing enough to educate people and include them in environmental decision making1.870.6922237