Mutualism has its limits: consequences of asymmetric interactions between a well-defended plant and its herbivorous pollinator
Data files
Mar 28, 2022 version files 76 KB
-
caterpillar_mass_survival.csv
6.94 KB
-
dc_flo.csv
194 B
-
dc_lin.csv
195 B
-
dc_mix.csv
150 B
-
DC.csv
10.33 KB
-
FD.csv
14.50 KB
-
kaempferol_herbivory.csv
155 B
-
kaempferol.csv
628 B
-
larval_masses_plants.csv
3.06 KB
-
mirabilis_lin.csv
159 B
-
mirabilis_side.csv
138 B
-
myricetin_herbivory.csv
158 B
-
myricetin.csv
628 B
-
naringenin_herbivory.csv
157 B
-
naringenin.csv
628 B
-
oenotheinA_herbivory.csv
158 B
-
oenotheinA.csv
624 B
-
oenotheinB_herbivory.csv
158 B
-
oenotheinB.csv
628 B
-
oviposition.csv
1.77 KB
-
phenolicsDC.csv
2.64 KB
-
quercetin_herbivory.csv
157 B
-
quercetin.csv
628 B
-
README_RAGUSO_HYLES_LAST.txt
22.36 KB
-
survival_plants.csv
3.28 KB
-
survival.csv
1.47 KB
-
survival1.csv
507 B
-
survival4.csv
1.44 KB
-
total_herbivory.csv
157 B
-
total.csv
628 B
-
weight_1cat.csv
193 B
-
weight_4cat.csv
136 B
-
weight.csv
1.07 KB
Abstract
Concern for pollinator health has focused on social bees and their agricultural services, but not all pollinators are bees, and their ecosystem services also promote biodiversity and conservation. Pollinating herbivores generate ecological conflicts when they utilize the same plant as a nectar source and larval host. We tracked individual-level metrics of pollinator health – growth, survivorship, fecundity – across the life cycle of a pollinating herbivore, the hawkmoth Hyles lineata, through its interactions with Oenothera harringtonii, a rare plant polymorphic for the floral volatile (R)-(-)-linalool. Linalool had no impact on moth attraction to O. harringtonii flowers but suppressed oviposition on experimentally supplemented plants. Leaves of O. harringtonii showed robust resistance against herbivory by H. lineata from leaf-disc to wholeplant scales, through poor larval growth and survivorship. Higher larval performance on other Oenothera species indicates that constitutive herbivore resistance by O. harringtonii is not generic. Leaf volatiles differed among populations of O. harringtonii but were not induced by larval herbivory. Elagitannins and other phenolics varied among leaf, bud and seed tissues but showed no evidence of herbivore induction. Our findings highlight asymmetric plant-pollinator interactions and the importance of third parties, such as alternative host plants, in maintaining pollinator health.
Usage notes
Please see "read me" file.