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View from Lower Table Rocks, Pictured from left: Erin Gray, Scott Orr and Denise Giles-Johnson
Photo credit: Tara Callaway |
It’s that time of year again! Field season has kicked off
for the Conservation Research program at the Institute for Applied Ecology
(IAE). This year, our season began at Lower Table Rocks located in southern Oregon near
Medford. Warm temperatures, bright blue skies and a plethora of wildflowers
welcomed us on all three days.
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View of Lower Table Rocks from trail
Photo credit: Denise Giles-Johnson |
Since
2006, IAE in partnership with the Medford District BLM has been monitoring the population
trends and effects of grazing and recreation on the State Threatened, Federal
Species of Concern, Limnanthes pumila
ssp. pumila (dwarf wooly meadowfoam).
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Limnanthes pumila ssp. pumila Photo credit: Erin Gray |
Permanent plots were distributed in high-and low-traffic areas and in caged and non-caged pairs to study the population trend of Limnanthes pumila ssp. pumila and to determine the factor, if any, which may be affecting the population.
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Permanent caged plot Photo credit: Erin Gray |
Recently in 2013, five transects were added to Lower Table Rocks to monitor the effects of an emergency fire retardant drop that occurred in July 2010 on plant communities.
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Collecting transect data, Pictured from left: Erin Gray and Tara Callaway
Photo credit: Scott Orr |
For a more
in-depth description about the Table Rocks monitoring project, please read the July
22nd, 2013 post “Conservation Research in Areas of Critical
Environmental Concern” or the 2013 report http://appliedeco.org/reports/Table%20Rocks%20Report_2013_final.pdf
Additionally, a short wildflower list has been compiled (attached
below) and details the species seen on and around Lower Table Rocks
(3/31/14-4/2/14).
Native Plant Species
Amsinckia menziesii var.
intermedia (common fiddleneck)
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Collinsia grandiflora |
Arbutus menziesii (Pacific
madrone)
Berberis aquifolium (Oregon
grape)
Callitriche marginata (winged
water starwort)
Callitriche trochlearis
(water starwort)
Calochortus tolmiei
(Oregon mariposa lily)
Camassia leichtlinii (great
camas)
Camassia quamash (common
camas)
Cardamine nuttallii (Nuttall’s
toothwort)
Collinsia grandiflora (Chinese pagoda)
Collinsia sparsiflora
(spinster’s blue-eyed Mary)
Crepis occidentalis (Western
hawksbeard)
Crepis pulchra (small-flowered
hawksbeard)
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Lupinus bicolor |
Cynoglossum grande (Hound’s
tongue)
Daucus carota (wild
carrot)
Daucus pusillus (American
wild carrot)
Delphinium
nuttallianum (larkspur)
Dicentra formosa (bleeding
heart)
Dodecatheon
hendersonii (shooting star)
Erythronium
hendersonii (fawn lily)
Fritillaria recurva (scarlet
fritillary)
Geranium molle (dove-foot
geranium)
Idahoa scapigera (speckled
pod)
Lasthenia californica (California
goldfields)
Limnanthes pumila
ssp. pumila (dwarf wooly meadowfoam)
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Saxifraga integrifolia |
Lomatium californicum (California
lomatium)
Lomatium dissectum (lace-leafed
lomatium)
Lomatium utriculatum (desert
parsley)
Lupinus bicolor
(dwarf lupine)
Myosurus minimus (mouse-tail)
Osmorhiza berteroi (sweet cicely)
Osmorhiza occidentalis (mountain sweet cicely)
Plabiobothrys spp. (popcorn
flower species)
Plectritis congesta (sea
blush)
Saxifraga integrifolia
(wholeleaf saxifrage)
Sisyrinchium bellum
(blue-eyed grass)
Sisyrinchium douglasii
(grass widow)
Thysanocarpus curvipes
(lacepod)
Thysanocarpus radians (large
fringepod)
Trifolium depauperatum
(cow’s udders)
Zigadenus venenosus
(death camas)
Exotic Plant Species
Geranium molle (dove-foot
geranium)
Hypochaeris glabra (smooth
cat’s ear)
Invasive grasses are increasingly becoming a huge problem at Table Rocks.
Here’s a list of the most alarming species:
Poa bulbosa (Bulbous
bluegrass)
Schedonorus phoenix (Tall
fescue)
Taeniatherum
caput-medusae (Medusahead)
*Native and exotic species were classified according to the Flowers
of Table Rocks published in 2007 written by Susan K. MacKinnon.