10.5061/DRYAD.340P0
Hahn, Philip G.
University of Wisconsin-Madison
Orrock, John L.
University of Wisconsin-Madison
Data from: Ontogenetic responses of four plant species to additive and
interactive effects of land-use history, canopy structure and herbivory
Dryad
dataset
2017
Grasshoppers
old-field
Orthoptera
context-dependent
Tolerance
plant ontogeny
2017-06-20T00:00:00Z
2017-06-20T00:00:00Z
en
https://doi.org/10.1111/1365-2745.12623
219214 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
The strength of interactions among species is often highly variable in
space and time, and a major challenge in understanding context-dependent
effects of herbivores lies in disentangling habitat-mediated from
herbivore-mediated effects on plant performance. We conducted a
landscape-scale experiment that manipulated light availability in
woodlands with either a history of agricultural use or no history of
agricultural use and coupled this with performance measurements of three
life stages on four perennial herbaceous species exposed to varying levels
of herbivory. We found that the context-dependent effects of herbivory on
plant performance changed as plants grew: juvenile plant survival was
reduced by herbivores in low-light habitats whereas biomass of adult
plants was reduced by a more diverse insect fauna in high-light
environments. A history of agricultural land use also had negative effects
on seedling establishment and adult performance, independent of herbivory.
Synthesis. This work experimentally separates the habitat-mediated effects
on plant performance from the herbivore-mediated effects on plant
performance and highlights how context-dependent interactions depend on
plant ontogenetic stages.
Hahn_JEcol_seedling_DATAData from the seed addition experiment. All data
were collected in the field by the authors.Hahn_JEcol_survival_DATAData on
plant survival after the first year of the experiment. All data were
collected in the field by the authors.Hahn_JEcol_flowering_DATAData on
flowering for the plants after the second year of the experiment. All data
were collected in the field by the authors.Hahn_JEcol_biomass_DATAData for
biomass at the end of the experiment. All data were collected in the field
by the authors.Hahn_JEcol_herbivory_DATAData on herbivore damage to the
plants at three survey periods throughout the experiment. All data were
collected in the field by the authors.
Southeastern United States of America
United States of America