RT Journal Article
T1 Extreme heat and drought did not affect interspecific interactions between dune grasses
A1 Lammers, Carlijn
A1 Berghuis, Paul M.J.
A1 García Mayor, Ángeles Pilar
A1 Reijers, Valérie C.
A1 Rietkerk, Max
A1 Heide, Tjisse van der
AB The frequency of extreme climatic events, such as storm and heatwaves, is predicted to increase because of climate change. Understanding interactions between species in environmental extremes plays a vital role in predicting ecosystem resilience. In this study, we examined how heat and drought combined with interspecific interactions between pioneer dune builder sand couch (Thinopyrum junceiforme) and primary foredune builder marram grass (Calamagrostis arenaria) affected growth and survival of the latter species in an embryonic dune system. In a 4-week field experiment, we transplanted marram grass within sand couch patches or on bare sediment. This plant interaction treatment was combined with a compound heat and drought treatment that was simulated with greenhouses that inhibited rainfall and increased temperatures (average daily maximum temperature +4 °C). Results show that the presence of sand couch significantly reduced growth (i.e., formation of new shoots, shoot and root length and aboveground biomass) of marram grass. By contrast, the heat and drought treatment had no significant effects on growth or survival of marram grass, irrespective of species interactions. The neutral response suggests that even in its early establishment marram grass is highly heat and drought resistant. Since the competitive interaction between sand couch and establishing marram grass did not change under pressure of an extreme heat and drought event, we expect that these factors do not affect embryonic dune development.
PB Elsevier
SN 0272-7714
YR 2024
FD 2024-12-30
LK https://hdl.handle.net/20.500.14352/118331
UL https://hdl.handle.net/20.500.14352/118331
LA eng
NO Lammers, C., Berghuis, P. M. J., Mayor, A. G., Reijers, V. C., Rietkerk, M., & van der Heide, T. (2024). Extreme heat and drought did not affect interspecific interactions between dune grasses. Estuarine, Coastal and Shelf Science, 311. https://doi.org/10.1016/J.ECSS.2024.109020
NO This work was financially supported by the Netherlands Organization of Scientific Research (NWO-Vidi grant 16588, awarded to TvdH and VR was funded by NWO-Veni grant VI.Veni.212.059) and NIOZ-UU grant 2020.1.
NO Nederlandse organisatie voor Wetenschappelijk Onderzoek
DS Docta Complutense
RD 21 abr 2025