THE SCIENTIFIC RESEARCH PROGRAM
Untouched Lophophora williamsii in the
regrowth study site population
Peyote post-harvest regrowth
controls
Summary of our observations –
after two years
PNF – Plant not found.
TNF – Tag not found.
nd – No data.
NP – Not present.
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 with soil so some photos may reflect the
pre-uncovery state.
Images of the tags can be viewed via the links 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. This year 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.
Updates from 2010 July 26 visit are incorporated as
needed.
Control group
Plant No.
|
Number of crowns
|
Number of ribs
|
Diameter of crowns
(in cm)
|
Comments
|
2009
2010
|
22 Nov. 2008
7 Mar. 2009
6 Mar. 2010
|
22 Nov. 2008
6 Mar. 2010
|
22 Nov. 2008
7 Mar. 2009
6 Mar. 2010
|
|
| |
151
151
|
2
2
2
|
8, 8
8, 8
|
3.8, 4.3
3.5, 4.7
3.0, 2.7
|
Both crowns dug up by hogs. Replanted. |
152
152
|
1
1
1
|
8
8
|
3.7
3.8
3.4
|
|
153
153
|
1
1
1
|
8
8
|
3.5
3.8
3.9
|
|
154
154
|
4 (+4 pups)
4 (+4 pups)
9
|
13, 13, 13, 8
13x3, 7x1, 8x4
|
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
|
9th crown was not measureable |
155
155
|
1
1
1
|
8
8
|
4.3
4.8
4.5
|
|
156
156
|
2
2
2
|
8, 8
8, 8
|
4.3, 4.9
4.8, 4.7
4.4, 4.8
|
|
157
157
|
1
1
1
|
8
8
|
4.8
5.5
4.6
|
|
158
158
|
1
1
1
|
8
11
|
5.7
5.8
4.9
|
|
159
159
|
1
1
1
|
8
12
|
4.7
5.0
4.3
|
|
160
160
|
1
1
1
|
13
12
|
4.7
5.2
4.9
|
|
161
161
|
1
1
1
|
8
9
|
5.1
5.2
4.7
|
|
162
162
|
1
1
1
|
8
8
|
4.0
5.2
4.4
|
|
163
163
|
1
1
1
|
13
13
|
6.1
6.5
6.4
|
|
164
164
|
1
1
7
|
13
13, 7, 6, 7, 5
|
7.4
7.4
6.8, 2.2, 1.8, 1.6, 1.0
|
2 new pups not measurable. |
165
165
|
3
3
3
|
8, 8, 8
13, 7, 8
|
5.8, 3.5, 3.2
5.6, 3.9, 3.8
4.7, 3.1, 3.1
|
|
166
166
|
1
1
3
|
13
13, 7, 7
|
6.0
5.6
5.2, 1.7, 1.7
|
|
167
167
|
2
2
2
|
13, 10
13, 11
|
4.2, 5.3
5.3, 5.9
4.8, 5.5
|
|
168
168
|
2
1
0
|
10, 11
9
nd
|
5.2, 5.1
5.3, 4.7
3.9 (2010 March)
dead (2010 July)
|
Appears to be diseased.
Plant was found to be dead. |
169
169
|
1
1
1
|
8
12
|
3.2
4.7
3.9
|
|
170
170
|
1
1
1
|
10
13
|
5.2
5.6
5.6
|
|
171
171
|
1
1
1
|
13
13
|
7.5
7.0
6.1
|
|
172
172
|
1
1
|
13
12
|
5.0
5.5
5.0
|
Hogs moved tag; plant was OK. |
173
173
|
1
1
1
|
8
8
|
4.8
4.9
4.6
|
|
174
174
|
1
1
1
|
10
12
|
5.2
5.9
5.2
|
|
175
175
|
1
1
1
|
8
8
|
3.6
4.1
3.1
|
|
176
176
|
1
1
1
|
8+ (transition)
13
|
5.0
5.0
4.7
|
|
177
177
|
1
1
0
|
8
0
|
6.0
5.2
nd
|
Dead. Compare to July photo of #168. |
178
178
|
1
1
1
|
13
13
|
5.8
5.9
5.8
|
|
179
179
|
1
1
1
|
8
8
|
4.5
4.2
3.3
|
|
180
180
|
1
1
1
|
13
12
|
7.2
7.3
6.3
|
|
181
181
|
1
1
1
|
5
5
|
2.5
2.9
2.8
|
|
182
182
|
1
1
1
|
8 (barely)
7
|
2.8
4.0
3.2
|
|
183
183
|
1
1
NP
|
8
nd
|
3.8
4.2
nd
|
Hogs |
184
184
|
1
1
1
|
8
8
|
4.0
4.7
3.7
|
|
185
185
|
1
1
1
|
5
6
|
2.7
3.0
2.5
|
|
186
186
|
3
2
3
|
8, 8, 8
6, 7, 9
|
3.6, 2.4, 3.0
3.8, 2.1, NP
1.0, 1.9, 3.9
|
|
187
187
|
2
2
2
|
8, 8
11, 9
|
4.3, 5.0
4.5, 5.0
4.7, 4.6
|
|
188
188
|
1
1
1
|
8
8
|
4.4
4.7
4.4
|
|
189
189
|
1
1
1
|
8
8
|
3.6
4.0
3.0
|
|
190
190
|
2
2
2
|
13, 13
13, 13
|
6.4, 6.0
5.8, 5.5
6.0, 5.0
|
|
191
191
|
1
1
1
|
8
8
|
3.8
3.3
3.0
|
|
192
192
|
1
1
1
|
5
5
|
2.6
2.8
2.1
|
|
193
193
|
3
3
3
|
10, 10, 10
10, 9, 10
|
4.5, 4.5, 5.0
4.0, 4.4, 4.7
3.5, 3.7, 4.2
|
|
194
194
|
2
2
2
|
8, 8
8, 8
|
4.1, 3.2
3.9, 3.3
2.2, 3.2
|
|
195
195
|
3
4
4
|
8, 8, 13
12, 8, 8, 5
|
4.4, 4.0, 3.0
4.1, 1.8, 3.7, 2.9
3.8, 2.1, 3.3, 1.3
|
|
196
196
|
1
1
1
|
8
8
|
3.0
3.0
2.5
|
|
197
197
|
1
2
3
|
10
9, 5, 5
|
4.9
4.5, 1.2
3.8, 2.0, 1.0
|
Tag not photographed in 2009.
|
198
198
|
1
1
NP
|
8
nd
|
4.2
4.1
nd
|
Hogs. |
199
199
|
1
1
1
|
10
9
|
4.8
4.6
4.5
|
|
200
200
|
1
1
1
|
11 (transition),
12
|
5.4
5.5
5.4
|
|
The data summary for
the regrowth group.
An additional 20 plants (#201-220) were harvested
during the November 2008 monitoring to make up for what was believed to
be lost plants from the original group of 50 harvested plants. [The results concerning those twenty
individuals.]
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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