THE SCIENTIFIC RESEARCH PROGRAM
Untouched Lophophora williamsii in the regrowth study site
population
Peyote post-harvest regrowth –
Control group
Summary of our observations –
after three years
PNF – Plant not found.
TNF – Tag not found.
nd – No data.
—
– Missing data.
Concerning data on regrowth involving multiple pups:
1) There is not necessarily a direct 1:1
correspondence between sequential figures for individual pups within a
single plant.
2) It was not uncommon for some or all pups to
be partly or entirely covered so some photos may reflect the
pre-uncovery state.
Images of the tags can be viewed via the links
in the column for the tag numbers and images of the actual plants can
be viewed using
the links in the column headed "Number of crowns".
A number of our tags and plants were completely
buried and hence provided missing data last year. In 2010, thanks to
the use of a high powered metal detector we located all of our tags,
stakes and plants unless they were totally missing from the study site.
Images and data concerning the control group can be
found below.
Control group
Plant
Number
tagIMG
|
Number of crowns
|
Number of ribs
|
Diameter of crowns
(in cm)
|
Comments
|
2008
2009
2010
2011
|
22 Nov. 2008
7 Mar. 2009
6 Mar. 2010
15 Mar. 2011
|
22 Nov. 2008
missed 2009 data
6 Mar. 2010
15 Mar. 2011
|
22 Nov. 2008
7 Mar. 2009
6 Mar. 2010
15 Mar. 2011
|
|
| |
151
151
151
151
|
2
2
2
4
|
8, 8
—
8, 8
9*, 8, 7, 9
|
3.8, 4.3
3.5, 4.7
3.0, 2.7
4.1*, 1.8, 2.0, 2.2
|
Both crowns broken off by hogs. Replanted 2010.
1 replanted crown* disappeared; original base grew 3 new
pups. |
152
152
152
152
|
1
1
1
1
|
8
—
8
8
|
3.7
3.8
3.4
4.2
|
Post-uncovery photo missed in 2011. |
153
153
153
153
|
1
1
1
1
|
8
—
8
8
|
3.5
3.8
3.9
4.2
|
|
154
154
154
154
|
4 (+4 pups)
4 (+4 pups)
9
9
|
13, 13, 13, 8
—
13x3, 7x1, 8x4
13x3, 6, 8x3, 9, 8
|
3.4, 5.0, 6.1, 5.0,
3.2, 5.8, 6.3, 5.6
6.1, 5.1, 5.5, 3.1, 2.0, 2.2, 1.9, 1.7
6.5, 6.0, 5.5, 1.1, 2.5, 3.6, 2.0, 2.3, 2.6
|
9th crown was not measureable
|
155
155
155
155
|
1
1
1
1
|
8
—
8
8
|
4.3
4.8
4.5
4.5
|
|
156
156
156
156
|
2
2
2
2
|
8, 8
—
8, 8
8, 8
|
4.3, 4.9
4.8, 4.7
4.4, 4.8
4.8, 4.8
|
|
157
157
157
157
|
1
1
1
1
|
8
—
8
8
|
4.8
5.5
4.6
5.2
|
|
158
158
158
158
|
1
1
1
1
|
8
—
11
13
|
5.7
5.8
4.9
5.8
|
|
159
159
159
159
|
1
1
1
1
|
8
—
12
13
|
4.7
5.0
4.3
4.8
|
|
160
160
160
160
|
1
1
1
3
|
13
—
12
13, 6, 7
|
4.7
5.2
4.9
5.3, 0.7, 0.8
|
|
161
161
161
161
|
1
1
1
1
|
8
—
9
9 (transition)
|
5.1
5.2
4.7
5.5
|
Tag & plant not photographed in 2011
|
162
162
162
162
|
1
1
1
1
|
8
—
8
8
|
4.0
5.2
4.4
5.6
|
|
163
163
163
163
|
1
1
1
1
|
13
—
13
13
|
6.1
6.5
6.4
7.0
|
|
164
164
164
164
|
1
1
7
6
|
13
—
13, 7, 6, 7, 5
13, 8, 8, 8, 8, 8
|
7.4
7.4
6.8, 2.2, 1.8, 1.6, 1.0
7.0, 1.8, 2.5, 2.5, 2.9, 2.5
|
2 new pups not measurable.
|
165
165
165
165
|
3
3
3
4
|
8, 8, 8
—
13, 7, 8
13, 8, 8, 7
|
5.8, 3.5, 3.2
5.6, 3.9, 3.8
4.7, 3.1, 3.1
5.7, 1.8, 3.9, 3.5
|
|
166
166
166
166
|
1
1
3
3
|
13
—
13, 7, 7
13, 8, 8
|
6.0
5.6
5.2, 1.7, 1.7
6.1, 2.5, 2.6
|
|
167
167
167
167
|
2
2
2
2
|
13, 10
—
13, 11
13, 10
|
4.2, 5.3
5.3, 5.9
4.8, 5.5
5.2, 6.1
|
|
168
168
168
168
|
missing data?
2
1 (0)
0
|
10, 11
—
9 (nd)
nd
|
5.2, 5.1
5.3, 4.7
3.9 (March) [dead (July)]
nd
|
Appeared diseased in March; found dead in July 2010.
|
169
169
169
169
|
1
1
1
1
|
8
—
12
13
|
3.2
4.7
3.9
4.0
|
|
170
170
170
170
|
1
1
1
1
|
10
—
13
13
|
5.2
5.6
5.6
5.0
|
|
171
171
171
171
|
1
1
1
1
|
13
—
13
13
|
7.5
7.0
6.1
7.0
|
|
172
172
172
172
|
missing data???
1
1
1
|
13
—
12
13
|
5.0
5.5
5.0
5.4
|
Hogs moved tag; plant was OK.
|
173
173
173
173
|
1
1
1
1
|
8
—
8
8
|
4.8
4.9
4.6
5.3
|
|
174
174
174
174
|
1
1
1
1
|
10
—
12
13
|
5.2
5.9
5.2
6.5
|
|
175
175
175
175
|
1
1
1
1
|
8
—
8
8
|
3.6
4.1
3.1
4.0
|
|
176
176
176
176
|
1
1
1
1
|
8+ (transition)
—
13
13
|
5.0
5.0
4.7
5.5
|
|
177
177
177
177
|
1
1
0
0
|
8
—
nd
nd
|
6.0
5.2
nd
nd
|
Dead. Compare to July 2010 photo of #168.
|
178
178
178
178
|
1
1
1
1
|
13
—
13
13
|
5.8
5.9
5.8
6.2
|
|
179
179
179
179
|
1
1
1
1
|
8
—
8
8
|
4.5
4.2
3.3
4.3
|
|
180
180
180
180
|
1
1
1
1
|
13
—
12
13*
|
7.2
7.3
6.3
7.4
|
12 ribs with another intercalating from base. Plant blooming! |
181
181
181
181
|
1
1
1
1
|
5
—
5
5
|
2.5
2.9
2.8
3.2
|
|
182
182
182
182
|
1
1
1
1
|
8 (barely)
—
7
nd*
|
2.8
4.0
3.2
4.1
|
Ribs not countable. Plant stepped on (by ungulate?). |
183
183
183
183
|
1
1
nd
0
|
8
—
nd
nd
|
3.8
4.2
nd
nd
|
Hogs |
184
184
184
184
|
1
1
1
1
|
8
—
8
8
|
4.0
4.7
3.7
4.2
|
|
185
185
185
185
|
1
1
1
1
|
5
—
6
9
|
2.7
3.0
2.5
3.6
|
|
186
186
186
186
|
3
2
3
3
|
8, 8, 8
—
6, 7, 9
10, 5, 7
|
3.6, 2.4, 3.0
3.8, 2.1, nd
1.0, 1.9, 3.9
4.8, 1.6, 2.4
|
|
187
187
187
187
|
2
2
2
2
|
8, 8
—
11, 9
8, 10
|
4.3, 5.0
4.5, 5.0
4.7, 4.6
5.2, 5.8
|
|
188
188
188
188
|
1
1
1
1
|
8
—
8
8
|
4.4
4.7
4.4
5.0
|
|
189
189
189
189
|
1
1
1
1
|
8
—
8
8
|
3.6
4.0
3.0
4.6
|
|
190
190
190
190
|
2
2
2
2
|
13, 13
—
13, 13
13, 13
|
6.4, 6.0
5.8, 5.5
6.0, 5.0
6.8. 6.1
|
|
191
191
191
191
|
1
1
1
1
|
8
—
8
8
|
3.8
3.3
3.0
4.3
|
|
192
192
192
192
|
1
1
1
1
|
5
—
5
5
|
2.6
2.8
2.1
3.3
|
|
193
193
193
193
|
3
3
3
3
|
10, 10, 10
—
10, 9, 10
10, 10, 10
|
4.5, 4.5, 5.0
4.0, 4.4, 4.7
3.5, 3.7, 4.2
5.0, 4.5, 4.5
|
|
194
194
194
194
|
2
2
2
2
|
8, 8
—
8, 8
8, 8
|
4.1, 3.2
3.9, 3.3
2.2, 3.2
4.2, 3.6
|
|
195
195
195
195
|
3
4
4
4
|
8, 8, 13
—
12, 8, 8, 5
13, 5, 8, 8
|
4.4, 4.0, 3.0
4.1, 1.8, 3.7, 2.9
3.8, 2.1, 3.3, 1.3
5.0, 1.7, 4.0, 3.0
|
|
196
196
196
196
|
1
1
1
1
|
8
—
8
8
|
3.0
3.0
2.5
3.6
|
|
197
197
197
197
|
1
2
3
3
|
10
—
9, 5, 5
11, 5, 5
|
4.9
4.5, 1.2
3.8, 2.0, 1.0
4.7, 2.0, 1.1
|
Tag not photographed in 2009.
|
198
198
198
198
|
1
1
nd
0
|
8
—
nd
nd
|
4.2
4.1
nd
nd
|
Hogs.
Dug up by hogs. |
199
199
199
199
|
1
1
1
1
|
10
—
9
8
|
4.8
4.6
4.5
5.0
|
|
200
200
200
200
|
1
1
1
1
|
11 (transition)
—
12
10
|
5.4
5.5
5.4
5.8
|
|
The data summary for
the regrowth group.
The data
summary for
the reharvest of half of the regrowth group.
An additional 20 plants (#201-220) were
harvested during the November 2008 monitoring to make up for what was
then
believed to be lost plants from the original group of 50 harvested
plants.
[The results
concerning
those twenty individuals. ]
15 March 2011 update:
Plant number 151 had been decapitated by passing
porcine traffic and
the two broken heads were replanted by us near their tag in March of
2010. In a late summer
visit we found that one of the heads had again been kicked out of the
ground
and was badly shriveled. It was once again replanted.
In March of 2011 we found the head that had taken
root in 2010 was quite healthy and growing whereas the
shrivelled one was nowhere to be found. More interestingly the original
plant #151 was located by virtue of it sending up new pups.
Regrowth study site showing typical Tamaulipan thornscrub vegetation
If you would like to help
support additional
studies of this type, designed to answer basic questions that are
critical to the optimal stewardship/management of vulnerable cactus
species, please send a contribution,
of $25 USD or whatever amount you can afford, to the Cactus
Conservation Institute, 909 E. Sul Ross Ave., Alpine, TX 79830.
We also now accept donations via PayPal.
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