10.5061/DRYAD.M905QFV32
Wang, Ying-Jie
0000-0001-9091-6423
KU Leuven
Tüzün, Nedim
KU Leuven
Sentis, Arnaud
National Research Institute for Agriculture, Food and Environment
Stoks, Robby
KU Leuven
Thermal plasticity and evolution shape predator-prey interactions
differently in clear and turbid water
Dryad
dataset
2022
space-for-time substitution
thermal evolution
trophic system stability
Turbidity
warming
FOS: Biological sciences
Daphnia magna
Research Foundation - Flanders
https://ror.org/03qtxy027
G.0524.17N
KU Leuven
https://ror.org/05f950310
C16/17/002
Research Foundation - Flanders
https://ror.org/03qtxy027
G.0956.19N
2022-02-22T00:00:00Z
2022-02-22T00:00:00Z
en
62147 bytes
3
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Warming and eutrophication negatively affect freshwater ecosystems by
modifying trophic interactions and increasing water turbidity. We need to
consider their joint effects on predator-prey interactions, and how these
depend on the thermal evolution of both predator and prey. We quantified
how 4°C warming and algae-induced turbidity (that integrates turbidity per
se and increased food for zooplankton prey) affect functional response
parameters and prey population parameters in a common-garden experiment.
We did so for all combinations of high- and low-latitude predator
(damselfly larvae) and prey (water fleas) populations to assess the
potential impact of thermal evolution of predators and/or prey at a high
latitude under warming using a space-for-time substitution. We then
modelled effects on the system stability (i.e. tendency to oscillate)
under different warming, turbidity and evolutionary scenarios. Warming and
turbidity had little effect on the functional response parameters of
high-latitude predators. In contrast, warming and turbidity reduced the
handling times of low-latitude predators. Moreover, warming increased the
search rates of low-latitude predators in clear water but instead
decreased these in turbid water. Warming increased stability (i.e.
prevented oscillations) in turbid water (except for the “high-latitude
predator & high-latitude prey” system), mainly by decreasing the
prey’s carrying capacity and partly also by decreasing search rates, while
it did not affect stability in clear water. Algae-induced turbidity
generally decreased stability, mainly by increasing the prey’s carrying
capacity and partly also by increasing search rates. This resembles
findings that nutrient enrichment can reduce the stability of trophic
systems. The expected stability of the high-latitude trophic system under
warming was dependent on the turbidity level: our results suggest that
thermal plasticity tends to destabilize the high-latitude trophic system
under warming in clear water but not in turbid water, and that thermal
evolution of the predator will stabilize the high-latitude system under
warming in turbid water but less so in clear water. The extent to which
thermal plasticity and evolution shape trophic system stability under
warming may strongly differ between clear and turbid water bodies, with
their contributions having a more stabilizing role in turbid water.
The methods for data collection and processing are described in the
Materials and methods and the appendix of the manuscript.
FR.csv contains data of functional response of the predatory damselfy
larvae feeding on their daphnid prey. r.csv contains data used for
estimating the intrinsic population growth rate of the prey. K.csv
contains data used for estimating the carrying capacity of the prey.
README_file.txt contains information for the headers of the attached csv
files.