43543
2019
2019
eng
16
744
postprint
1
2019-09-25
2019-09-25
--
The effects of functional diversity on biomass production, variability, and resilience of ecosystem functions in a tritrophic system
Diverse communities can adjust their trait composition to altered environmental conditions, which may strongly influence their dynamics. Previous studies of trait-based models mainly considered only one or two trophic levels, whereas most natural system are at least tritrophic. Therefore, we investigated how the addition of trait variation to each trophic level influences population and community dynamics in a tritrophic model. Examining the phase relationships between species of adjacent trophic levels informs about the strength of top-down or bottom-up control in non-steadystate situations. Phase relationships within a trophic level highlight compensatory dynamical patterns between functionally different species, which are responsible for dampening the community temporal variability. Furthermore, even without trait variation, our tritrophic model always exhibits regions with two alternative states with either weak or strong nutrient exploitation, and correspondingly low or high biomass production at the top level. However, adding trait variation increased the basin of attraction of the high-production state, and decreased the likelihood of a critical transition from the high- to the lowproduction state with no apparent early warning signals. Hence, our study shows that trait variation enhances resource use efficiency, production, stability, and resilience of entire food webs.
Postprints der Universität Potsdam Mathematisch-Naturwissenschaftliche Reihe
10.25932/publishup-43543
urn:nbn:de:kobv:517-opus4-435439
1866-8372
7541
Scientific Reports 9 (2019) Art. 7541 DOI: 10.1038/s41598-019-43974-1
<a href="http://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/43542">Bibliographieeintrag der Originalveröffentlichung/Quelle</a>
false
true
CC-BY - Namensnennung 4.0 International
Ruben Ceulemans
Ursula Gaedke
Toni Klauschies
Christian Guill
Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
744
eng
uncontrolled
early-warning signals
eng
uncontrolled
top-down control
eng
uncontrolled
community ecology
eng
uncontrolled
regime shifts
eng
uncontrolled
food webs
eng
uncontrolled
compensatory dynamics
eng
uncontrolled
consumer diversity
eng
uncontrolled
metabolic theory
eng
uncontrolled
rapid evolution
eng
uncontrolled
stable states
Naturwissenschaften und Mathematik
Technik, Technologie
open_access
Institut für Biochemie und Biologie
Referiert
Open Access
Universität Potsdam
https://publishup.uni-potsdam.de/files/43543/pmnr744.pdf
43542
2019
2019
eng
16
9
article
Macmillan Publishers Limited
London
1
2019-05-17
2019-05-17
--
The effects of functional diversity on biomass production, variability, and resilience of ecosystem functions in a tritrophic system
Diverse communities can adjust their trait composition to altered environmental conditions, which may strongly influence their dynamics. Previous studies of trait-based models mainly considered only one or two trophic levels, whereas most natural system are at least tritrophic. Therefore, we investigated how the addition of trait variation to each trophic level influences population and community dynamics in a tritrophic model. Examining the phase relationships between species of adjacent trophic levels informs about the strength of top-down or bottom-up control in non-steadystate situations. Phase relationships within a trophic level highlight compensatory dynamical patterns between functionally different species, which are responsible for dampening the community temporal variability. Furthermore, even without trait variation, our tritrophic model always exhibits regions with two alternative states with either weak or strong nutrient exploitation, and correspondingly low or high biomass production at the top level. However, adding trait variation increased the basin of attraction of the high-production state, and decreased the likelihood of a critical transition from the high- to the lowproduction state with no apparent early warning signals. Hence, our study shows that trait variation enhances resource use efficiency, production, stability, and resilience of entire food webs.
Scientific Reports
10.1038/s41598-019-43974-1
2045-2322
7541
Universität Potsdam
PA 2019_43
1773.1
<a href="http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-435439">Zweitveröffentlichung in der Schriftenreihe Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe ; 744</a>
false
false
CC-BY - Namensnennung 4.0 International
Ruben Ceulemans
Ursula Gaedke
Toni Klauschies
Christian Guill
eng
uncontrolled
early-warning signals
eng
uncontrolled
top-down control
eng
uncontrolled
community ecology
eng
uncontrolled
regime shifts
eng
uncontrolled
food webs
eng
uncontrolled
compensatory dynamics
eng
uncontrolled
consumer diversity
eng
uncontrolled
metabolic theory
eng
uncontrolled
rapid evolution
eng
uncontrolled
stable states
Naturwissenschaften und Mathematik
Technik, Technologie
open_access
Institut für Biochemie und Biologie
Referiert
Publikationsfonds der Universität Potsdam
Open Access