pollinator diversity in a bunchgrass prairie melissa mckenney dr. sujaya rao, dept. crop and soil...
TRANSCRIPT
Pollinator Diversity in a Bunchgrass Prairie
Melissa McKenneyDr. Sujaya Rao, Dept. Crop and Soil ScienceDr. Sandy DeBano, Dept. Fish and Wildlife
~70,000 acres
How can one determine pollinator diversity in such a large
landscape?
Problem:
Blue Vane Trapping
4 pastures 4 traps per pasture—16 traps per sample period Three sample periods—48 traps total
19%
20%
0%
2%
47%
11%
0%
Total Non-Bees Trapped
ColeopteraDipteraEphemeropteraHomopteraOther HymenopteraLepidopteraOrthoptera
319 Specimens
Total Invertebrates Trapped
ApoidiaeColeopteraDipteraEphemeropteraHomopteraOther HymenopteraLepidopteraOrthoptera
3%3%
0%0%
8%2%
0%
83%
Total Invertebrates Trapped
ColeopteraDipteraEphemeropteraHomopteraOther HymenopteraLepidopteraOrthopteraApoidiae
1896 Specimens
And
rena
Per
dita
Em
phor
opsi
s
Mel
isso
des
Bom
bus
Col
lete
s
Hyl
aeus
Hal
ictu
s
Lasi
oglo
ssum
Sph
ecod
es
Meg
achi
le
Osm
ia
0
1
2
3
4
5
6
7
8
9
10
0.0625 0.0625
5.95833333333333
3.875
0.18750.0416666666666667
6.0625
9.3125
0.02083333333333330.208333333333333
1.66666666666667
Seasonal Average Abundance of Bee Genera
Genus
Bee
s pe
r tr
ap p
er d
ay
< <
4.6
Jul 03 Jul 22 Aug 100
50
100
150
200
250
300
Temporal Bee Abundance for Common Genera
PerditaMelissodesBombusHalictusLasioglossumOsmia
Date
# o
f b
ee
s tr
ap
pe
d
Jul 03 Jul 22 Aug 100
5
10
15
20
25
30
35
40
45
50Bombus Temporal Abundance
B. bifariusB. californicusB. centralisB. flavifronsB. griseocollisB. mixtusB. nevadensisB. occidentalisB. rufocinctusB. vagans
Date
# of
bee
s tr
appe
d B. bifarius
B. flavifrons
Jul 03 Jul 22 Aug 100
2
4
6
8
10
12
14Temporal Variance in B. flavifrons Sex Ratios
B. flavifrons ♀B. flavifrons ♂
Date
# o
f B
ee
s
Jul 03 Jul 22 Aug 1005
1015202530354045
Temporal Variance in B. bifarius Sex Ratios
B. bifarius ♀B. bifarius ♂
Date
# o
f B
ee
s
P=0.1135
P=0.1595
P=<0.0001
Future Research
Determine which pollinators depend on which plants and visa versa
Determine annual and seasonal variation of pollinator species
Use data to make conservation plans for pollinator species
Acknowledgments
NSF REU ProgramDr. Sujaya Rao
Dr. Sandy DeBanoDr. Andy MoldenkeDr. W.P. StephenDr. Richard Halse
Dr. Jeff MillerHHMI Program
Questions?