Pollen Stoichiometry May Influence Detrital Terrestrial and Aquatic Food Webs

Filipiak, Michał

doi:10.3389/fevo.2016.00138

Cited by 40 publications

(52 citation statements)

References 63 publications

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“…In temperate zones, elements other than C, H, O, N, and S may comprise approximately 0.1-0.6% of wood, but tropical wood may be more nutritious, containing up to 5% ash (Ragland et al 1991;Pettersen 1984). Additionally, wood may consist of approximately 0.08-0.2% of N (Meerts 2002) and 0.003-0.03% of P (Pettersen 1984;Meerts 2002), which are extremely low concentrations that are insufficient for insects and other arthropods (they have one-to threefold higher N and P concentrations in their bodies (Fagan et al 2002;Schneider et al 2010;Filipiak and Weiner 2014;Filipiak 2016); see Sterner and Elser (2002) and Elser et al (2000a, b) for discussions on how such nutritional imbalances may limit organisms and influence ecosystems). In dead wood, C:N and C:P ratios may be as high as 6500/7500 and 54,500/150,000 (dry mass ratio/molar ratio), respectively, which indicates severe nutritional scarcity for potential consumers (Filipiak and Weiner 2014;Filipiak et al 2016).…”

Section: Background: Nutritional Scarcity In Dead Wood and Why It Matmentioning

confidence: 99%

“…Therefore, the chemical composition of dead wood differs from that of other plant tissues because it is extraordinarily rich in C, H, and O atoms but scarce in other elements and thus extremely nutritionally unbalanced for its potential consumers. In this context, the growth and development of dead wood-eating beetles may be co-limited by the scarcity of non-sugar nutrients in dead wood, including essential bioelements such as N, P, K, Na, Mg, Zn, and Cu (Filipiak andWeiner 2014, 2017a;Filipiak et al 2016). The limitations imposed by differences between nutritional demand (the nutritional needs of growing organisms) and supply (the availability of the nutrients required in an environment) can determine the fitness of an organism and may influence its ecological interactions (Haack and Slansky 1987;Sterner and Elser 2002;Pokarzhevskii et al 2003;Cherif 2012;Kaspari and Powers 2016).…”

Section: Background: Nutritional Scarcity In Dead Wood and Why It Matmentioning

confidence: 99%

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Nutrient Dynamics in Decomposing Dead Wood in the Context of Wood Eater Requirements: The Ecological Stoichiometry of Saproxylophagous Insects

Filipiak

2018

Zoological Monographs

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Dead wood is rich in sugars and can serve as an energy source when digested, but it lacks other nutrients, preventing the growth, development, and maturation of saproxylophages (saproxylic organisms that consume dead wood at any stage of decomposition). Split into atoms, sugars only serve as a source of carbon, hydrogen, and oxygen, thereby providing insufficient nutrition for saproxylophages and for their digestive tract symbionts, despite the ability of certain symbionts to assimilate nitrogen directly from the air. Ecological stoichiometry framework was applied to understand how nutritional scarcity shapes saproxylophage-dead wood interactions. Dead wood is 1-3 orders of magnitude inadequate in biologically essential elements (N, P, K, Na, Mg, Zn, and Cu), compared to requirements of its consumers, preventing the production of necessary organic compounds, thus limiting saproxylophages' growth, development, and maintenance. However, the wood is nutritionally unstable. During decomposition, concentrations of the biologically essential elements increase promoting saproxylophage development. Three mechanisms contribute to the nutrient dynamics in dead wood: (1) C loss, which increases the concentration of other essential elements, (2) N fixation by prokaryotes, and (3) fungal transport of outside nutrients. Prokaryotic N fixation partially mitigates the limitations on saproxylophages by the scarcity of N, often the most limiting nutrient, but co-limitation by seven elements (N, P, K, Na, Mg, Zn, and Cu) may occur. Fungal transport can shape nutrient dynamics early in wood decay, rearranging extremely scarce nutritional composition of dead wood environment during its initial stage of decomposition and assisting saproxylophage growth and development. This transport considerably alters the relative and total amounts of non-C elements, mitigating also nutritional constraints experienced by saproxylophages inhabiting such nutritionally enriched wood during

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Section: Background: Nutritional Scarcity In Dead Wood and Why It Matmentioning

confidence: 99%

Section: Background: Nutritional Scarcity In Dead Wood and Why It Matmentioning

confidence: 99%

Nutrient Dynamics in Decomposing Dead Wood in the Context of Wood Eater Requirements: The Ecological Stoichiometry of Saproxylophagous Insects

Filipiak

2018

Zoological Monographs

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“…Lemoine et al [33] compared the C:N:P resourceconsumer stoichiometry within an entirely terrestrial community, and the results suggest that the colimitation of herbivore development is a result of N and P scarcity in plant tissues. Multielemental colimitation has been demonstrated to shape the life histories and feeding strategies of woodboring beetles [71][72][73], and such a limitation may influence growth, development, and feeding strategies of detritivores [74]. Possible mechanisms that might connect ecological stoichiometry with plant-animal interactions in land ecosystems have been described by Mulder et al [75], who focused on understanding the biodiversity-ecosystem functional relationship and considered stoichiometry an important treat that shapes within-ecosystem relationships.…”

Section: Plant-herbivore Interactions In the Framework Of Ecologicalmentioning

confidence: 99%

“…Therefore, the TSR index serves as a conservative but convenient tool that facilitates the detection of elements that colimit development and comparisons of the severity of the limitations imposed by various foods on different consumers. On that basis, testable hypotheses can be generated to better understand both (i) the biomass and nutrient flow within and between ecosystems and (ii) the nutritional ecology of organisms and the relationship between organisms and their various food sources, including plant-insect interactions (e.g., [71][72][73][74]). …”

Section: Trophic Stoichiometric Ratio (Tsr) -The Index Of Stoichiometmentioning

confidence: 99%

Plant–insect interactions: the role of ecological stoichiometry

Filipiak

Weiner

2017

Acta Agrobot

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The energy budget of organisms is a primary factor used to generate hypotheses in ecosystem ecology and evolutionary theory. Therefore, previous studies have focused on the energy costs and benefits of adaptations, the efficiency of energy acquisition and investment, and energy budget limitations. The maintenance of stoichiometric balance is equally important because inconsistency between the chemical composition of the consumer's tissues and that of its food sources strongly affects the major life-history traits of the consumer and may influence the consumer's fitness and shape plant-herbivore interactions. In this short review, the framework of ecological stoichiometry is introduced, focusing on plant-insect interactions in terrestrial ecosystems. The use of the trophic stoichiometric ratio (TSR) index is presented as a useful tool for indicating the chemical elements that are scarce in food and have the potential to limit the growth and development of herbivores, thereby influencing plant -herbivorous insect interactions. As an example, the elemental composition and stoichiometry of a pollen consumer (mason bee Osmia bicornis) and its preferred pollen are compared. The growth and development of O. bicornis may be colimited by the scarcity of K, Na, and N in pollen, whereas the development of the cocoon might be colimited by the scarcity of P, Mg, K, Na, Zn, Ca, and N. A literature review of the elemental composition of pollen shows high taxonomical variability in the concentrations of bee-limiting elements. The optimized collection of pollen species based on the elemental composition may represent a strategy used by bees to overcome stoichiometric mismatches, influencing their interactions with plants. It is concluded that the dependence of life-history traits on food stoichiometry should be considered when discussing life history evolution and plant-herbivore interactions. The TSR index may serve as a convenient and powerful tool in studies investigating plant-insect interactions.

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“…Stoichiometric mismatch in producer-consumer (i.e. detritus-invertebrate) systems, typically identify nutritional deficiency in food sources (Filipiak and Weiner 2014, 2017; Filipiak 2016). In this case stoichiometric mismatch is indicative less of nutritional deficiency but more of limitation in nutrient utilization and availability as well as the potential for plant-environment nutrient feedbacks discussed above.…”

Section: Discussionmentioning

confidence: 99%

Stoichiometric homeostasis of wetland vegetation along a nutrient gradient in a subtropical wetland. Understanding stoichiometric mechanisms of nutrient retention in wetland macrophytes

Julian

Gerber

et al. 2017

Preprint

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1 subtropical wetland. Understanding stoichiometric mechanisms of nutrient retention in wetland 2 macrophytes. Abstract (limit 250 words) 1 4 Nutrient homeostasis relates ambient stoichiometric conditions in an environment to the stoichiometry of 1 5 living entities of the ecosystem. In wetland ecosystems, vegetation can be a large, highly variable and 1 6 dynamic sink of nutrients. This study investigated stoichiometric homeostasis of dominant emergent and 1 7 submerged aquatic vegetation (EAV and SAV, respectively) within two treatment flow-ways (FW) of 1 8Everglades Stormwater Treatment Area 2 (STA-2). These FW encompass a large gradient in plant 1 9 nutrient availability. The hypotheses of this study is that wetland vegetation is non-homeostatic relative to 2 0 ambient nutrients and consequently nutrient resorption will not vary along the nutrient gradient. We 2 1 developed a framework to investigate how vegetation uptake and resorption of nutrients contribute 2 2 separately to homeostasis. Overall, the wetland vegetation in this study was non-homeostatic with respect 2 3 to differential uptake of nitrogen (N) vs. phosphorus (P). Resorption evaluated for EAV was high for P 2 4 and moderate for N, resorption efficiency did not significantly vary along the gradient and therefore did 2 5 not affect overall homeostatic status. Nutrient addition experiments may help to compensate for some of 2 6 the limitation of our study, especially with respect to resolving the primary nutrient source (organic vs. 2 7inorganic sources, water vs. soil compartment) and nutrient utilization rates. 2 8 2 9

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Pollen Stoichiometry May Influence Detrital Terrestrial and Aquatic Food Webs

Cited by 40 publications

References 63 publications

Nutrient Dynamics in Decomposing Dead Wood in the Context of Wood Eater Requirements: The Ecological Stoichiometry of Saproxylophagous Insects

Nutrient Dynamics in Decomposing Dead Wood in the Context of Wood Eater Requirements: The Ecological Stoichiometry of Saproxylophagous Insects

Plant–insect interactions: the role of ecological stoichiometry

Stoichiometric homeostasis of wetland vegetation along a nutrient gradient in a subtropical wetland. Understanding stoichiometric mechanisms of nutrient retention in wetland macrophytes

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