To be or not to be what you eat: regulation of stoichiometric homeostasis among autotrophs and heterotrophs

Persson, Jonas; Fink, Patrick; Goto, Ayumu; Hood, James M.; Jonas, Jayne L.; Kato, Satoshi

doi:10.1111/j.1600-0706.2010.18545.x

Cited by 128 publications

(231 citation statements)

References 49 publications

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“…However, emerging data indicate that the situation is more complicated (Persson et al 2010). Our findings indicate that vascular plant taxa common in the Inner Mongolia grassland present a considerable range in the strength of their stoichiometric homeostasis and do not generally conform to a concept of close tracking of environmental nutrient supply originally emphasized in stoichiometric theory.…”

Section: Discussionmentioning

confidence: 45%

“…Limpens and Berendse (2003) found that the strength of homeostasis may change as a long-term adaptation to site fertility. Furthermore, data from algae suggest that even growth rate itself could be associated with stoichiometric homeostasis (Elrifi and Turpin 1985;Shafik et al 1997;Persson et al 2010), as the relatively constrained biochemical allocations required under fast growth might constrain biomass N:P within a narrow range under situations that permit high growth rates. Similar H values of species within a given functional group and significant differences of H among functional groups suggest that life …”

Section: Discussionmentioning

confidence: 98%

“…As mentioned previously, ecological stoichiometry has generally adopted an assumption of weak stoichiometric homeostasis in vascular plants (Sterner and Elser 2002;Güsewell 2004), based primarily on observations of unicellular algae such as the green alga Scenedesmus (Rhee 1978). While work on freshwater invertebrates has shown that H differs across various chemical elements (Karimi and Folt 2006;e.g., H for N, C, P were 34.1, 13.8, and 7.7, respectively), data are particularly lacking for higher plants (Persson et al 2010), despite the fact that vascular plants form the basis of nearly all terrestrial food webs. Thus, the validity of a weak homeostasis assumption is uncertain and considerably more data are needed for a clearer view (Persson et al 2010;Elser et al 2010).…”

Section: Introductionmentioning

confidence: 98%

“…While work on freshwater invertebrates has shown that H differs across various chemical elements (Karimi and Folt 2006;e.g., H for N, C, P were 34.1, 13.8, and 7.7, respectively), data are particularly lacking for higher plants (Persson et al 2010), despite the fact that vascular plants form the basis of nearly all terrestrial food webs. Thus, the validity of a weak homeostasis assumption is uncertain and considerably more data are needed for a clearer view (Persson et al 2010;Elser et al 2010).…”

Section: Introductionmentioning

confidence: 98%

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Stoichiometric homeostasis of vascular plants in the Inner Mongolia grassland

et al. 2011

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Stoichiometric homeostasis, the degree to which an organism maintains its C:N:P ratios around a given species- or stage-specific value despite variation in the relative availabilities of elements in its resource supplies, is a key parameter in ecological stoichiometry. However, its regulation and role in affecting organismal and ecosystem processes is still poorly understood in vascular plants. We performed a sand culture experiment and a field nitrogen (N) and phosphorus (P) addition experiment to evaluate the strength of N, P and N:P homeostasis in higher plants in the Inner Mongolia grassland. Our results showed that homeostatic regulation coefficients (H) of vascular plants ranged from 1.93 to 14.5. H varied according to plant species, aboveground and belowground compartments, plant developmental stage, and overall plant nutrient content and N:P ratio. H for belowground and for foliage were inversely related, while H increased with plant developmental stage. H for N (H(N)) was consistently greater than H for P (H(P)) while H for N:P (H(N:P)) was consistently greater than H(N) and H(P). Furthermore, species with greater N and P contents and lower N:P were less homeostatic, suggesting that more homeostatic plants are more conservative nutrient users. The results demonstrate that H of plants encompasses a considerable range but is stronger than that of algae and fungi and weaker than that of animals. This is the first comprehensive evaluation of factors influencing stoichiometric homeostasis in vascular plants.

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Section: Discussionmentioning

confidence: 45%

Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

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Stoichiometric homeostasis of vascular plants in the Inner Mongolia grassland

et al. 2011

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“…However, this is an approximation and a simplification that has been made for model development (Grover 2003;Persson et al 2010). One of the major causes of variable stoichiometry is associated with individual growth; that is, juveniles grow and accumulate energy, while adults use energy for reproduction.…”

Section: Introductionmentioning

confidence: 98%

The ontogenetic stoichiometric bottleneck stabilizes herbivore–autotroph dynamics

Nakazawa

2010

Ecological Research

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In the ecological stoichiometry theory of population dynamics, ontogenetic changes in nutrient demand have been ignored. Here, I studied a stagestructured Daphnia-algae herbivore-autotroph model, in which the juveniles of the herbivore had a higher nutrient (phosphorous) demand for maturation than the adults for reproduction. The model predicted that while an increase in the juvenile nutrient demand (i.e., ontogenetic stoichiometric bottleneck) affects stage-specific performances in complex ways through nutrient dynamics and resource quality, in general it has stabilizing effects on the population dynamics.

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Microzooplankton regulation of surface ocean POC:PON ratios

Talmy

Martiny

Hill

et al. 2016

Global Biogeochemical Cycles

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The elemental composition of particulate organic matter in the surface ocean significantly affects the efficiency of the ocean's store of carbon. Though the elemental composition of primary producers is an important factor, recent observations from the western North Atlantic Ocean revealed that carbon‐to‐nitrogen ratios (C:N) of phytoplankton were significantly higher than the relatively homeostatic ratio of the total particulate pool (particulate organic carbon:particulate organic nitrogen; POC:PON). Here we use an idealized ecosystem model to show how interactions between primary and secondary producers maintain the mean composition of surface particulates and the difference between primary producers and bulk material. Idealized physiological models of phytoplankton and microzooplankton, constrained by laboratory data, reveal contrasting autotrophic and heterotrophic responses to nitrogen limitation: under nitrogen limitation, phytoplankton accumulate carbon in carbohydrates and lipids while microzooplankton deplete internal C reserves to fuel respiration. Global ecosystem simulations yield hypothetical global distributions of phytoplankton and microzooplankton C:N ratio predicting elevated phytoplankton C:N ratios in the high‐light, low‐nutrient regions of the ocean despite a lower, homeostatic POC:PON ratio due to respiration of excess carbon in systems subject to top‐down control. The model qualitatively captures and provides a simple interpretation for, a global compilation of surface ocean POC:PON data.

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To be or not to be what you eat: regulation of stoichiometric homeostasis among autotrophs and heterotrophs

Cited by 128 publications

References 49 publications

Stoichiometric homeostasis of vascular plants in the Inner Mongolia grassland

Stoichiometric homeostasis of vascular plants in the Inner Mongolia grassland

The ontogenetic stoichiometric bottleneck stabilizes herbivore–autotroph dynamics

Microzooplankton regulation of surface ocean POC:PON ratios

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