Abstract
In light of ongoing climate change, it is increasingly important to know how nutritional requirements of ectotherms are affected by changing temperatures. Here, we analyse the wide thermal response of phosphorus (P) requirements via elemental gross growth efficiencies of Carbon (C) and P, and the Threshold Elemental Ratios in different aquatic invertebrate ectotherms: the freshwater model species Daphnia magna, the marine copepod Acartia tonsa, the marine heterotrophic dinoflagellate Oxyrrhis marina, and larvae of two populations of the marine crab Carcinus maenas. We show that they all share a non-linear cubic thermal response of nutrient requirements. Phosphorus requirements decrease from low to intermediate temperatures, increase at higher temperatures and decrease again when temperature is excessive. This common thermal response of nutrient requirements is of great importance if we aim to understand or even predict how ectotherm communities will react to global warming and nutrient-driven eutrophication.
| Original language | English |
|---|---|
| Pages (from-to) | 2189-2202 |
| Number of pages | 14 |
| Journal | Ecology Letters |
| Volume | 25 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 2022 |
Funding
C.L. acknowledges support from the Alexander von Humboldt Foundation and the Fulbright Foundation. C.L., A.M., E.B. and B.M. are CONICET Researchers. We acknowledge support from Fondo Para la Investigación Científica y Tecnológica (Argentina FONCyT PICT 2019-0950, PICT 2017-1940). C.L.M. was supported by the Bundesministerium für Bildung und Forschung (BMBF grant no. 01LN1702A). M.B. was supported by the Dynatrait programme of the German Science Foundation. J.J.E. was supported by an NSF Rules of Life grant (DEB-1930816). We thank Dr Thomas Ruiz for providing the R scripts for parameter bootstrapping. We are thankful to Siri Rohwer and Zoran Šargač for their help with the larval cultures of C. maenas while funded by the Deutsche Forschungsgemeinschaft (Research Training Group 2010: RESPONSE). We acknowledge Dr Enrique González-Ortegón (Instituto de Ciencias Marinas de Andalucía, Spain) for providing the C. maenas berried females from Cadiz. Open Access funding enabled and organized by Projekt DEAL. C.L. acknowledges support from the Alexander von Humboldt Foundation and the Fulbright Foundation. C.L., A.M., E.B. and B.M. are CONICET Researchers. We acknowledge support from Fondo Para la Investigación Científica y Tecnológica (Argentina FONCyT PICT 2019‐0950, PICT 2017‐1940). C.L.M. was supported by the Bundesministerium für Bildung und Forschung (BMBF grant no. 01LN1702A). M.B. was supported by the Dynatrait programme of the German Science Foundation. J.J.E. was supported by an NSF Rules of Life grant (DEB‐1930816). We thank Dr Thomas Ruiz for providing the R scripts for parameter bootstrapping. We are thankful to Siri Rohwer and Zoran Šargač for their help with the larval cultures of C. maenas while funded by the Deutsche Forschungsgemeinschaft (Research Training Group 2010: RESPONSE). We acknowledge Dr Enrique González‐Ortegón (Instituto de Ciencias Marinas de Andalucía, Spain) for providing the C. maenas berried females from Cadiz. Open Access funding enabled and organized by Projekt DEAL.
| Funders | Funder number |
|---|---|
| DEB‐1930816 | |
| 01LN1702A | |
| Consejo Nacional de Investigaciones Científicas y Técnicas | |
| PICT 2017‐1940, PICT 2019‐0950 |
Keywords
- carbon
- ecological stoichiometry
- gross growth efficiency
- growth
- metabolism
- nutrients
- phosphorus
- respiration
- thermal gradient
- threshold elemental ratio
