THE SCIENTIFIC RESEARCH PROGRAM
Untouched Lophophora williamsii at the
regrowth study site
Peyote post-harvest regrowth –
Late harvest adjunct group
Summary of our observations
in 2012
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.
Images of the actual plants can be viewed using
the links in the columns headed "Regrowth as number of pups".
The following 20 plants (#201-220) were
harvested during the November 2008 monitoring to make up for what were
then believed to be lost plants from the original group of 50 harvested
individuals. The March 2009 data below followed a severe
drought that lasted throughout the winter and into the spring, up
through the date of the March monitoring. 2011 and 2010 were also
years with prolonged drought periods.
nd – No data.
Plant No.
Tag IMG
2009
2010
2011
2012
|
Regrowth as
number of pups
(Links to images)
|
Diameter of pups
(cm)
7 March 2009
6 March 2010
15 March 2011
13 March 2012
|
Comments
|
| |
201
201
201
201
|
0
2
2
1
|
nd
2.2, 1.2
2.3, 1.5
2.5
|
|
202
202
202
202
|
0
2
2
3
|
nd
2.3, 2.1
3.0, 3.0
5.0, 3.5, 3.5
|
Larger 3rd crown that was present is a sister to the
harvested plant.
Largest is apical meristem regrowth.
|
203
203
203
203
|
0
3
3
0
|
nd
2.5, 1.5, 1.5
3.5, 3.0, 4.0
nd
|
|
204
204
204
204
|
0
2
2
2
|
nd
2.8, 1.9
4.0, 2.6
4.2, 3.0
|
|
205
205
205
205
|
0
0
0
0
|
nd
nd
nd
nd
|
Carcass found.
|
206
206
206
206
|
1
1
0
0
|
2.0
1.8x1.0
nd
nd
|
Apical meristem regrowth.
Crown mostly eaten; fragmentary remains.
No sign remaining.
|
207
207
207
207
|
0
2
1
1
|
nd
3.0, 2.0
4.2
4.0
|
|
208
208
208
208
|
–
–
–
–
|
nd
nd
nd
nd
|
Plant not found.
Evidently uprooted by
feral hogs.
Hogs. Plant still not found.
Stake was dug up by hogs. Plant not found.
Plant or carcass still not found.
|
209
209
209
209
|
0
2
2
2
|
nd
2.5, 1.6
4.0, 2.8
4.1, 3.0
|
|
210
210
210
210
|
0
1
1
1
|
nd
3.3
3.8
3.6
|
Plant mistakenly thought dead in 2009 causing missed
data.
Sister of the harvested plant is still
alive.
|
211
211
211
211
|
0
0
1
1
|
nd
nd
4.2
4.2
|
Sister of the harvested plant is still alive.
|
212
212
212
212
|
0
0
0
0
|
nd
nd
nd
nd
|
New seedling found nearby (5 mm dia.); not part of
study group.
|
213
213
(213)
213
213
|
0
nd
(1)
0
0
|
nd
nd
(nd)
nd
nd
|
Hog activity evident.
(Entry updated: 2010 July 26.)
No carcass located.
|
214
214
214
214
|
0
4
4
3
|
nd
1.8, 1.5, 1.0. 0.5
2.7, 1.3, 2.0, 2.7
2.7, 3.0, ~2.0
|
One crown stepped on.
Third crown was stepped on so only roughly measured.
|
215
215
215
215
|
0
1
2
2
|
nd
3.0
3.5, 5.0
4.8, 4.5
|
Unharvested twin also present.
|
216
216
216
216
|
0
2
1
0
|
nd
1.1, 1.5
0.8
nd
|
Almost dead. Dry.
|
217
217
217
217
|
0
3
3
3
|
nd
1.5, 1.9, 1.0
3.2, 2.8, 2.5
3.3, 2.8, 2.2
|
Smallest one somewhat chewed on.
|
218
218
218
218
|
0
0
1
2
|
nd
nd
2.2
2.5, 2.1
|
Sister of the harvested plant is still alive.
Twin is still alive and well.
|
219
219
219
219
|
0
2
2
2
|
nd
2.5, 2.9
4.0, 3.5
3.9, 3.5
|
|
220
220
220
220
|
0
2
2
2
|
nd
3.0, 2.5
3.4, 3.6
3.7, 3.9
|
No rebar. Nail uprooted; moved ~30 cm from plant.
|
The data summary for
the primary regrowth group
The data
summary for the control group
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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