Does differential iron supply to algae affect Daphnia life history? : An ionome-wide study
Jeyasingh, P. D., & Pulkkinen, K. (2019). Does differential iron supply to algae affect Daphnia life history? : An ionome-wide study. Oecologia, 191(1), 51-60. https://doi.org/10.1007/s00442-019-04482-1
© Springer-Verlag GmbH Germany, part of Springer Nature 2019
The availability of iron (Fe) varies considerably among diet items, as well as ecosystems. Availability of Fe has also changed due to anthropogenic environmental changes in oceanic as well as inland ecosystems. We know little about its role in the nutrition of ecologically important consumers, particularly in inland ecosystems. Physiological studies in several taxa indicate marked effects of dietary Fe on oogenesis. We predicted that differential Fe supply to algae will impact algal Fe concentration with consequences on the life history of the freshwater grazer, Daphnia magna. We found that algal Fe concentration increased with Fe supply, but did not affect algal growth, indicating that the majority of experimental Fe additions were likely adsorbed to, or stored in algal cells. Regardless, data indicate that algal Fe impacted the reproductive traits (age and size at maturity) but not juvenile growth rate of Daphnia. A subsequent experiment revealed that Fe concentration in eggs was significantly higher than the rest of Daphnia. These results indicate that the concentration of Fe in or on algal cells may vary considerably among ecosystems overlying distinct geological formations differing in Fe, possibly with important implications for zooplankton life histories. Understanding the mechanisms underlying this response is unlikely to be accomplished by a strict focus on Fe because we found correlated shifts in the algal ionome, with concomitant ionome-wide adjustments in Daphnia. Information on ionome-wide responses may be useful in better understanding the responses of biota to changes in the supply of any one element. ...
Publication in research information system
MetadataShow full item record
Additional information about fundingConsumable costs were defrayed by Academy of Finland grant # 260704 to Jouni Taskinen, and US National Science Foundation grant #1256867 to PDJ.
Showing items with similar title or keywords.
Interacting effects of simulated eutrophication, temperature increase, and microplastic exposure on Daphnia Hiltunen, Minna; Vehniäinen, Eeva-Riikka; Kukkonen, Jussi V. K. (Elsevier BV, 2021)The effects of multiple stressors are difficult to separate in field studies, and their interactions may be hard to predict if studied in isolation. We studied the effects of decreasing food quality (increase in cyanobacteria ...
Pilecky, Matthias; Kämmer, Samuel K.; Mathieu‐Resuge, Margaux; Wassenaar, Leonard I.; Taipale, Sami J.; Martin‐Creuzburg, Dominik; Kainz, Martin J. (Wiley-Blackwell, 2021)1. Organisms at the base of aquatic food webs synthesize essential nutrients, such as omega-3 polyunsaturated fatty acids (n-3 PUFA), which are transferred to consumers at higher trophic levels. Many consumers, requiring ...
Taipale, Sami J.; Kuoppamäki, K.; Strandberg, U.; Peltomaa, E.; Vuorio, K. (Springer, 2020)Food quality is one of the key factors influencing zooplankton population dynamics. Eutrophication drives phytoplankton communities toward the dominance of cyanobacteria, which means a decrease in the availability of sterols ...
Gerber, Nina; Kokko, Hanna; Ebert, Dieter; Booksmythe, Isobel (The Royal Society Publishing, 2018)The timing of sex in facultatively sexual organisms is critical to fitness, due to the differing demographic consequences of sexual versus asexual reproduction. In addition to the costs of sex itself, an association of sex ...
Comparison of Bayesian and numerical optimization-based diet estimation on herbivorous zooplankton Litmanen, Jaakko J.; Perälä, Tommi A.; Taipale, Sami J. (The Royal Society Publishing, 2020)Consumer diet estimation with biotracer-based mixing models provides valuable information about trophic interactions and the dynamics of complex ecosystems. Here, we assessed the performance of four Bayesian and three ...