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Journal articles on the topic 'Nutrient ecology'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Sugden, A. M. "ECOLOGY/EVOLUTION: Nutrient Recycling." Science 302, no. 5643 (2003): 199c—199. http://dx.doi.org/10.1126/science.302.5643.199c.

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2

Weiner, Benjamin G., Anna Posfai, and Ned S. Wingreen. "Spatial ecology of territorial populations." Proceedings of the National Academy of Sciences 116, no. 36 (2019): 17874–79. http://dx.doi.org/10.1073/pnas.1911570116.

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Many ecosystems, from vegetation to biofilms, are composed of territorial populations that compete for both nutrients and physical space. What are the implications of such spatial organization for biodiversity? To address this question, we developed and analyzed a model of territorial resource competition. In the model, all species obey trade-offs inspired by biophysical constraints on metabolism; the species occupy nonoverlapping territories, while nutrients diffuse in space. We find that the nutrient diffusion time is an important control parameter for both biodiversity and the timescale of

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3

Zandonà, Eugenia, Priscila Oliveira-Cunha, and Beatriz Moreira-Ferreira. "PAPEL DOS PEIXES NA RECICLAGEM DE NUTRIENTES EM RIACHOS TROPICAIS." Oecologia Australis 25, no. 02 (2021): 449–63. http://dx.doi.org/10.4257/oeco.2021.2502.14.

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Fish can contribute directly and indirectly to nutrient recycling in aquatic environments, affecting community structure and ecosystem processes. Through the excretion of metabolic waste, fish make inorganic nutrients available in the environment that can be used by algae and bacteria. Nitrogen and phosphorus are often limiting nutrients in streams, so fish can be a relevant source of these nutrients. Many factors can influence excretion rates, including diet, body nutrient demand (for reproduction and growth), ontogeny, body size, temperature and other abiotic factors. Currently, two theories

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4

Yakubu, Hosea, Ahmed Amin Njidda, Isaac Sammani Butswat, Olurotimi Ayobami Olafadehan, and Abayomi Samuel Bankole. "Rumen fermentation and nutrient utilization of growing Yankasa rams fed a mixed ration containing tiger nut (Cyperus esculentus) residue and cowpea husk (Vigna unguiculata L. Walp)." Brazilian Journal of Science 3, no. 6 (2024): 14–26. http://dx.doi.org/10.14295/bjs.v3i6.569.

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Thirty (30) Yankasa growing rams were used to investigate the effect of feeding cowpea husk and tiger nut residue in a mixed ration on the rumen ecology, nutrient intake, nutrient digestibility, and nitrogen balance of Yankasa rams. Significant differences (p < 0.05) were observed in the rumen ecology, nutrient intake, nutrient digestibility, and nitrogen balance between the treatments. Rumen ecology was influenced by the diet, with variations in rumen pH, temperature, and volatile fatty acid production. The results indicated that the highest rumen pH and temperature were observed in Treatm

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Gao, Jie, Jiangfeng Wang, and Yanhong Li. "Effects of Soil Nutrients on Plant Nutrient Traits in Natural Pinus tabuliformis Forests." Plants 12, no. 4 (2023): 735. http://dx.doi.org/10.3390/plants12040735.

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In light of global warming, the interaction between plant nutrient traits and soil nutrients is still unclear. Plant nutrient traits (e.g., N and P) and their stoichiometric relationships (N/P ratio) are essential for plant growth and reproduction. However, the specific role of soil nutrients in driving variation in plant nutrient traits remains poorly understood. Fifty natural Pinus tabuliformis forests were used as the research object to clarify the interaction between plant nutrient traits and soil nutrients. We show that: (1) The Nmass, Pmass and N/P ratios of leaves were significantly hig

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6

Sugden, A. M. "ECOLOGY: Nutrient Dynamics in Peat Bogs." Science 292, no. 5519 (2001): 1023a—1023. http://dx.doi.org/10.1126/science.292.5519.1023a.

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7

Xaxiri, Eirini, Evangelos Darivakis, Ioannis Karavidas, Georgia Ntatsi, and Dimitrios Savvas. "Comparing the Nutritional Needs of Two Solanaceae and One Cucurbitaceae Species Grown Hydroponically under the Same Cropping Conditions." Plants 12, no. 20 (2023): 3642. http://dx.doi.org/10.3390/plants12203642.

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Switching over to closed-loop soilless culture systems, thus preventing pollution of water resources by nitrates and saving water and fertilizers, requires accurate estimations of the mean nutrient-to-water uptake ratios. To contribute to this objective, three fruit vegetable species (tomato, eggplant, cucumber) were grown hydroponically in a floating system under identical cropping conditions to quantify species differences in nutrient uptake. The composition of the nutrient solution used to feed the crops was identical for all species. The total water consumption and the concentrations of mo

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8

Elsdon, Travis S., and Karin E. Limburg. "Nutrients and their duration of enrichment influence periphyton cover and biomass in rural and urban streams." Marine and Freshwater Research 59, no. 6 (2008): 467. http://dx.doi.org/10.1071/mf07085.

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Although it is well known that land use affects nutrient dynamics and algal growth in streams, the responses to different durations of nutrient supply are poorly understood. The associations of benthic (periphyton-dominated) biomass with concentrations of dissolved nitrogen and phosphorus in rural and urban streams in New York were quantified. Biomass was significantly greater (2-fold) in the urban compared with the rural stream, which was associated with differences in dissolved nutrients. Experimental field enrichment of nutrient concentrations and duration of exposure altered benthic periph

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9

O'Brien, Allyson L., Liz Morris, and Michael J. Keough. "Multiple sources of nutrients add to the complexities of predicting marine benthic community responses to enrichment." Marine and Freshwater Research 61, no. 12 (2010): 1388. http://dx.doi.org/10.1071/mf10085.

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Understanding biological responses to nutrient enrichment under different environmental conditions is integral for the effective management of eutrophication in coastal environments. However, current conceptual models of nutrient enrichment are limited as they are based on studies that only consider a single source of nutrients, when in reality it is more likely that enrichment is a result of multiple sources. Here, we test the hypothesis that biological responses to nutrient enrichment in intertidal mudflat assemblages depend on the source by comparing enrichment from a controlled release fer

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10

Marañón-Jiménez, Sara, Jorge Castro, Emilia Fernández-Ondoño, and Regino Zamora. "Charred wood remaining after a wildfire as a reservoir of macro- and micronutrients in a Mediterranean pine forest." International Journal of Wildland Fire 22, no. 5 (2013): 681. http://dx.doi.org/10.1071/wf12030.

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Large amounts of logs and coarse woody debris remain in the ecosystem after wildfires. However, the relevance of the nutrient reservoir contained in the remaining post-fire woody debris for the ecosystem nutrient reserves is rarely considered. In this paper, we determine the carbon and nutrient concentrations in the partially charred wood after a wildfire along an altitudinal gradient and assess the relative magnitude of the nutrient reservoir in the wood in relation to those existing in the first 10-cm soil layer. Soils were poorly developed and nutrients limiting for the vegetation requireme

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11

Marinov, I., S. C. Doney, and I. D. Lima. "Response of ocean phytoplankton community structure to climate change over the 21st century: partitioning the effects of nutrients, temperature and light." Biogeosciences 7, no. 12 (2010): 3941–59. http://dx.doi.org/10.5194/bg-7-3941-2010.

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Abstract. The response of ocean phytoplankton community structure to climate change depends, among other factors, upon species competition for nutrients and light, as well as the increase in surface ocean temperature. We propose an analytical framework linking changes in nutrients, temperature and light with changes in phytoplankton growth rates, and we assess our theoretical considerations against model projections (1980–2100) from a global Earth System model. Our proposed "critical nutrient hypothesis" stipulates the existence of a critical nutrient threshold below (above) which a nutrient c

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Thomson, V. P., and M. R. Leishman. "Survival of native plants of Hawkesbury Sandstone communities with additional nutrients: effect of plant age and habitat." Australian Journal of Botany 52, no. 2 (2004): 141. http://dx.doi.org/10.1071/bt03047.

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Australian soils are naturally low in nutrient concentrations, particularly nitrogen (N) and phosphorus (P). Native plants are well adapted to low-nutrient soils, and can be adversely affected when exposed to higher concentrations of nutrients. The Hawkesbury Sandstone soils in northern Sydney are naturally low in nutrients, but often receive additional nutrient input from urban stormwater run-off. Increases in soil nutrients in urban bushland are associated with the presence of exotic species, and the decline in the diversity of native species. This study tested the hypothesis that high conce

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Marinov, I., S. C. Doney, and I. D. Lima. "Response of ocean phytoplankton community structure to climate change over the 21st century: partitioning the effects of nutrients, temperature and light." Biogeosciences Discussions 7, no. 3 (2010): 4565–606. http://dx.doi.org/10.5194/bgd-7-4565-2010.

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Abstract. The response of ocean phytoplankton community structure to climate change depends upon species competition for nutrients and light, as well as the increase in surface ocean temperature. We propose an analytical framework linking changes in nutrients, temperature and light with changes in phytoplankton growth rates, and we assess our theoretical considerations against model projections (1980–2100) from a global Earth System model. Our proposed ''critical nutrient theory'' suggests that there is a critical nutrient threshold below (above) which a nutrient change will affect more (less)

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14

Adame, María Fernanda, Bernardino Virdis, and Catherine E. Lovelock. "Effect of geomorphological setting and rainfall on nutrient exchange in mangroves during tidal inundation." Marine and Freshwater Research 61, no. 10 (2010): 1197. http://dx.doi.org/10.1071/mf10013.

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One of the key ecosystem services provided by mangroves is their role in mediating nutrient exchange, thereby protecting coastal ecosystems from negative impacts of nutrient enrichment. In this study, we tested whether geomorphological setting and level of rainfall affect the intensity and direction of nutrient exchange. Our hypotheses were that tidal mangroves retain more nutrients than riverine mangroves and that nutrient retention is stronger during periods of high rainfall. Concentrations of soluble reactive phosphorus (SRP), nitrogen oxides (NOx–-N) and ammonium (NH4+) were measured from

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15

Krupa, James J., and J. Matthew Thomas. "Is the common teasel (Dipsacus fullonum) carnivorous or was Francis Darwin wrong?" Botany 97, no. 6 (2019): 321–28. http://dx.doi.org/10.1139/cjb-2019-0008.

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Francis Darwin first suggested that the common teasel (Dipsacus fullonum L.), a biennial species, might be a carnivorous plant. He suggested that this species acquires nutrients from insects that drown in water-holding cups formed at the base of leaves that surround the stems. Since then, other biologists have made the same claim. To test this we addressed the question: does adding invertebrates as supplemental nutrients to water-filled cups of D. fullonum influence reproduction or are nutrients only obtained from the soil? We performed two factorial designed experiments (high-nutrient soil vs

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16

Ning, Z., K. Yu, Y. Wang, et al. "Effects of nutrient enrichment and skewed N:P ratios on physiology of scleractinian corals from Weizhou Island in the northern South China Sea." Marine Ecology Progress Series 682 (January 20, 2022): 111–22. http://dx.doi.org/10.3354/meps13933.

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The availability of nitrogen (N) and phosphorus (P) is crucial for maintaining coral-dinoflagellate symbiosis, whereas excess nutrients and skewed N:P ratios are often associated with coral reef decline. It is thus essential to understand the general patterns of species-specific as well as dose-dependent responses of corals to elevated nutrient concentrations and skewed N:P ratios. Here, we found that the impacts of nutrient enrichment on the corals Acropora millepora and Platygyra crosslandi from Weizhou Island, South China Sea, were highly dependent on nutrient dose, N:P ratios, and coral sp

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17

Hagiwara, Yousuke, Naoki Kachi, and Jun-Ichirou Suzuki. "Effects of temporal heterogeneity of watering on size of an annual forb, Perilla frutescens (Lamiaceae), depend on soil nutrient levels." Botany 86, no. 10 (2008): 1111–16. http://dx.doi.org/10.1139/b08-064.

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Temporal heterogeneity of watering affects plant growth. When the same total amount of water is supplied, frequent watering leads to greater plant size than infrequent watering. However, the effects of a given watering regime can differ when nutrient levels vary. An experiment was designed to test the hypothesis that the effects of temporal heterogeneity of watering on plant growth also vary as a function of nutrient levels. Perilla frutescens (L.) Britton was grown using different combinations of nutrient levels and watering frequencies, with total water held constant across the treatments. T

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18

Liu, Xin, Zhe Wang, Xiaoming Li, and Weikai Bao. "Nitrogen and phosphorus translocation of forest floor mosses as affected by a pulse of these nutrients." Journal of Plant Ecology 13, no. 5 (2020): 633–40. http://dx.doi.org/10.1093/jpe/rtaa050.

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Abstract Aims Mosses are dominant in many ecosystems where nutrients from deposition are one of the main nutrient sources. However, it is difficult to evaluate mosses’ role in nutrient cycling without knowledge of how mosses use deposited nutrient inputs. To fill this gap, the present study aims to investigate: (i) how nitrogen (N) and phosphorus (P) concentrations of new-grown segments change along a gradient of N or P amount in a pulse treatment? (ii) how do a pulse of major nutrient (N or P) affect N or P translocation rate along a moss shoot? and (iii) to what extent do N or P translocatio

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19

Cai, Zhi-quan, and Frans Bongers. "Contrasting nitrogen and phosphorus resorption efficiencies in trees and lianas from a tropical montane rain forest in Xishuangbanna, south-west China." Journal of Tropical Ecology 23, no. 1 (2007): 115–18. http://dx.doi.org/10.1017/s0266467406003750.

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Tropical montane rain forest is widely considered to be a highly threatened hotspot of global diversity (Brummitt & Nic Lughadha 2003), and one of the least understood humid tropical forest ecosystems in terms of nutrient cycling (Bruijnzeel & Proctor 1995). There is, therefore, an urgent need to improve our understanding of nutrient cycling processes in this ecosystem, including the absorption of nutrients (mainly N and P) from senescing leaves, which may be a key component of adaptive mechanisms that conserve limiting nutrients (Killingbeck 1996). Nutrients which are not resorbed, ho

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20

Yan, Jing, Nathaniel A. Bogie, and Teamrat A. Ghezzehei. "Root uptake under mismatched distributions of water and nutrients in the root zone." Biogeosciences 17, no. 24 (2020): 6377–92. http://dx.doi.org/10.5194/bg-17-6377-2020.

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Abstract. Most plants derive their water and nutrient needs from soils where the resources are often scarce, patchy, and ephemeral. It is not uncommon for plant roots to encounter mismatched patches of water-rich and nutrient-rich regions in natural environments. Such an uneven distribution of resources necessitates plant reliance on strategies for exploring and acquiring nutrients from relatively dry patches. We conducted a laboratory study that elucidates the biophysical mechanisms that enable this adaptation. The roots of tomato (Solanum lycopersicum) seedlings were laterally split and grow

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21

Sommer, Ulrich. "A comment on the proper use of nutrient ratios in microalgal ecology." Fundamental and Applied Limnology 146, no. 1 (1999): 55–64. http://dx.doi.org/10.1127/archiv-hydrobiol/146/1999/55.

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22

Ganf, GG, SJL Stone, and RL Oliver. "Use of protein to carbohydrate ratios to analyse for nutrient deficiency in phytoplankton." Marine and Freshwater Research 37, no. 2 (1986): 183. http://dx.doi.org/10.1071/mf9860183.

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A series of laboratory experiments was designed to investigate the influence of nitrogen, phosphorus and photon irradiance on the protein to carbohydrate ratio and growth rate of Scenedesmus quadricauda. These parameters responded to nutrient additions and depletions in a predictable manner. As nutrients were added the ratio rose to a maximum of 5, but as nutrients were depleted from the medium the ratio fell to < 1 during long-term experiments. The ratio also showed that diurnal fluctuations in cultures grown under a 12 h light : 12 h dark cycle were similar in magnitude to the long-term c

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23

Singh, Mahakdeep, Amandeep Kaur, and Mandeep Singh. "Impact of Land Configuration and Nutrients Levels on Growth, Yield Attributes and Yield of Oilseed Crops: A Review." ECOLOGY, ENVIRONMENT AND CONSERVATION 29, suppl (2023): 48–53. http://dx.doi.org/10.53550/eec.2023.v29i06s.007.

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Crops are sown using a variety of land configuration techniques, which have major benefits for the correct growth of oilseed crops as well as for the effective use of water and the management of soil erosion. Different land configurations like flat bed, line sowing, and broad bed furrow play an important part in reducing problems with plants and soil like spacing, water need, and nutrient retention. Land layout factors like slope and elevation may also have an impact. Nutrient concentrations like nitrogen, phosphorus, and potassium are necessary for a plant to grow and develop. While insuffici

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Bouwman, A. F., M. F. P. Bierkens, J. Griffioen, et al. "Nutrient dynamics, transfer and retention along the aquatic continuum from land to ocean: towards integration of ecological and biogeochemical models." Biogeosciences Discussions 9, no. 7 (2012): 8733–82. http://dx.doi.org/10.5194/bgd-9-8733-2012.

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Abstract. In river basins, soils, groundwater, riparian zones, streams, rivers, lakes and reservoirs act as successive filters in which the hydrology, ecology and biogeochemical processing are strongly coupled and together act to retain a significant fraction of the nutrients transported. This paper compares existing river ecology concepts with current approaches to describe river biogeochemistry, and assesses the value of these concepts and approaches for understanding the impacts of interacting global change disturbances on river biogeochemistry. Through merging perspectives, concepts, model

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Bouwman, A. F., M. F. P. Bierkens, J. Griffioen, et al. "Nutrient dynamics, transfer and retention along the aquatic continuum from land to ocean: towards integration of ecological and biogeochemical models." Biogeosciences 10, no. 1 (2013): 1–22. http://dx.doi.org/10.5194/bg-10-1-2013.

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Abstract. In river basins, soils, groundwater, riparian zones and floodplains, streams, rivers, lakes and reservoirs act as successive filters in which the hydrology, ecology and biogeochemical processing are strongly coupled and together act to retain a significant fraction of the nutrients transported. This paper compares existing river ecology concepts with current approaches to describe river biogeochemistry, and assesses the value of these concepts and approaches for understanding the impacts of interacting global change disturbances on river biogeochemistry. Through merging perspectives,

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26

Hallman, Lukas M., Davie M. Kadyampakeni, John-Paul Fox, Alan L. Wright, and Lorenzo Rossi. "Root-Shoot Nutrient Dynamics of Huanglongbing-Affected Grapefruit Trees." Plants 11, no. 23 (2022): 3226. http://dx.doi.org/10.3390/plants11233226.

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With huanglongbing (HLB) causing a reduction in fine root mass early in disease progression, HLB-affected trees have lower nutrient uptake capability. Questions regarding the uptake efficiency of certain fertilizer application methods have been raised. Therefore, the goals of this study are to determine if nutrient management methods impact nutrient translocation and identify where in the tree nutrients are translocated. Destructive nutrient and biomass analysis were conducted on field grown HLB-affected grapefruit trees (Citrus × paradisi) grafted on ‘sour orange’ (Citrus × aurantium) rootsto

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Ruan, Li, Xin Li, Yuhang Song, Jianwu Li, and Kumuduni Niroshika Palansooriya. "Effects of Tea Plant Varieties with High- and Low-Nutrient Efficiency on Nutrients in Degraded Soil." Plants 12, no. 4 (2023): 905. http://dx.doi.org/10.3390/plants12040905.

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Tea plants are widely planted in tropical and subtropical regions globally, especially in southern China. The high leaching and strong soil acidity in these areas, in addition to human factors (e.g., tea picking and inappropriate fertilization methods) aggravate the lack of nutrients in tea garden soil. Therefore, improving degraded tea-growing soil is urgently required. Although the influence of biological factors (e.g., tea plant variety) on soil nutrients has been explored in the existing literature, there are few studies on the inhibition of soil nutrient degradation using different tea pl

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28

Scalon, Marina Corrêa, Imma Oliveras Menor, Renata Freitag, et al. "Contrasting strategies of nutrient demand and use between savanna and forest ecosystems in a neotropical transition zone." Biogeosciences 19, no. 15 (2022): 3649–61. http://dx.doi.org/10.5194/bg-19-3649-2022.

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Abstract. The total demand for and uptake of nutrients by vegetation is rarely quantified or compared across vegetation types. Here, we describe different nutrient use and allocation strategies in neotropical savanna (cerrado) and transitional forest (cerradão) tree communities composed of different species, report leaf nutrient resorption and calculate ecosystem-level nutrient use efficiency. We couple net primary productivity (NPP) estimates with nutrient stoichiometry to quantify nutrient demand and nutrient flows at the whole-stand scale for different components of vegetation biomass. Spec

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29

Ikkonen, Elena, Svetlana Chazhengina, and Marija Jurkevich. "Photosynthetic Nutrient and Water Use Efficiency of Cucumis sativus under Contrasting Soil Nutrient and Lignosulfonate Levels." Plants 10, no. 2 (2021): 340. http://dx.doi.org/10.3390/plants10020340.

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To reduce the use of commercial conventional inorganic fertilizers, the possibility of using pulp and paper industry wastes in agriculture as an alternative source of nutrients is recently under study and discussion. This work aimed to evaluate the effect of sodium lignosulfonate application to soil on photosynthetic leaf nutrient (N, P, K, Ca, Mg, Fe, Mn, and Na) and water use efficiency. A pot culture experiment was conducted with cucumber seedlings, using five lignosulfonate concentrations (0, 1, 2.5, 5, and 10 vol. %) in sandy soil under sufficient or low nutrient availability for plants.

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Hiremath, Ankila J., John J. Ewel, and Thomas G. Cole. "Nutrient Use Efficiency in Three Fast-Growing Tropical Trees." Forest Science 48, no. 4 (2002): 662–72. http://dx.doi.org/10.1093/forestscience/48.4.662.

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Abstract We measured nutrient use efficiency (NPP/nutrient uptake) in three species of tropical trees, Hyeronima alchorneoides, Cedrela odorata, and Cordia alliodora. We tested the prediction that on fertile soils species with very different biomass and nutrient allocation and turnover would converge on a common value of nutrient use efficiency. Due to high soil fertility, nutrient use efficiencies of the species studied were low (95–150 and 433–962 for N and P use efficiency, respectively). Nutrient use efficiency was examined in terms of its components, nutrient productivity and the mean res

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Rogers, Howard M. "Litterfall, decomposition and nutrient release in a lowland tropical rain forest, Morobe Province, Papua New Guinea." Journal of Tropical Ecology 18, no. 3 (2002): 449–56. http://dx.doi.org/10.1017/s0266467402002304.

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The analysis of litter quantity, litter decomposition and its pattern of nutrient release is important for understanding nutrient cycling in forest ecosystems. Plant growth and maintenance are partly met through nutrient cycling (O'Connell & Sankaran 1997) which is dominated by litter production and decomposition. Litter fall is a major process for transferring nutrients from above-ground vegetation to soils (Vitousek & Sanford 1986), while decomposition of litter releases nutrients (Maclean & Wein 1978). The rate at which nutrients are recycled influences the net primary productiv

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Wei, Lili, Shuh-Ji Kao, and Chaoxiang Liu. "Mangrove species maintains constant nutrient resorption efficiency under eutrophic conditions." Journal of Tropical Ecology 36, no. 1 (2019): 36–38. http://dx.doi.org/10.1017/s0266467419000336.

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AbstractMangrove species have developed nutrient conservation mechanisms to adapt to oligotrophic intertidal environments. However, nutrient enrichment occurs worldwide, particularly in estuarine and coastal regions. Mangrove species may change their adaptive strategies if nutrient availability increases substantially. To understand how nutrient resorption (a major nutrient conservation strategy) responds to nutrient enrichment, a common mangrove species in China, Aegiceras corniculatum (black mangrove), was selected, and saplings were cultivated in nutrient-enriched soils. After one year, nei

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Di Carvalho, Josie Antonucci, and Stephen A. Wickham. "Does spatiotemporal nutrient variation allow more species to coexist?" Oecologia 194, no. 4 (2020): 695–707. http://dx.doi.org/10.1007/s00442-020-04768-9.

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AbstractTemporal heterogeneity in nutrient availability is known to increase phytoplankton diversity by allowing more species to coexist under different resource niches. Spatial heterogeneity has also been positively correlated with species diversity. Here we investigated how temporal and spatial differences in nutrient addition together impact biodiversity in metacommunities varying in the degree of connectivity among the patches. We used a microcosm experimental design to test two spatiotemporal ways of supplying nutrients: synchronously (nutrients were added regionally—to all four patches a

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Nev, Olga A., Richard J. Lindsay, Alys Jepson, Lisa Butt, Robert E. Beardmore, and Ivana Gudelj. "Predicting microbial growth dynamics in response to nutrient availability." PLOS Computational Biology 17, no. 3 (2021): e1008817. http://dx.doi.org/10.1371/journal.pcbi.1008817.

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Developing mathematical models to accurately predict microbial growth dynamics remains a key challenge in ecology, evolution, biotechnology, and public health. To reproduce and grow, microbes need to take up essential nutrients from the environment, and mathematical models classically assume that the nutrient uptake rate is a saturating function of the nutrient concentration. In nature, microbes experience different levels of nutrient availability at all environmental scales, yet parameters shaping the nutrient uptake function are commonly estimated for a single initial nutrient concentration.

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Barrick, Kenneth A., and Anna W. Schoettle. "A comparison of the foliar nutrient status of elfinwood and symmetrically formed tall trees, Colorado Front Range, U.S.A." Canadian Journal of Botany 74, no. 9 (1996): 1461–75. http://dx.doi.org/10.1139/b96-176.

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We tested the hypothesis of nutrient limitation in the trees of the alpine forest – tundra ecotone by comparing the foliar nutrient status of windsculpted elfinwood (also called krummholz) growing at the upper limit of tree success with symmetrically formed toll trees growing at the nearby timberline. The species investigated included Picea engelmannii (Parry) Engelmann, Abies lasiocarpa (Hooker) Nuttall, pinus flexilis james, and Pinus aristata Bailey. The foliar nutrient concentrations of the ecotone trees were similar to other healthy montane forests. Most of the significant differences in

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Deng, Mi, Bingjun Li, Yanmei Pan, et al. "Effects of Different Heterogeneous Nutrient Environments on the Growth and Activities of Enzymes in the Roots of Fokienia hodginsii Families." Plants 12, no. 24 (2023): 4152. http://dx.doi.org/10.3390/plants12244152.

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Currently, research on the F. hodginsii asexual lineage primarily focuses on the screening of growth traits and the control of single fertilizer applications. The effects of the heterogeneity of soil nutrients on root growth and activity have not been studied in detail. Therefore, we propose forest management measures to improve the foraging ability of forest trees in conjunction with stand productivity. In this experiment, annual containerized seedlings of 10 free-pollinated F. hodginsii lines from a primary asexual seed orchard were used as test subjects, and three heterogeneous nutrient env

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Singh, Manish, Suhana Puri Goswami, Ranjitha G., et al. "Nanotech for Fertilizers and Nutrients-Improving Nutrient use Efficiency with Nano-Enabled Fertilizers." Journal of Experimental Agriculture International 46, no. 5 (2024): 220–47. http://dx.doi.org/10.9734/jeai/2024/v46i52372.

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The development of nano-enabled fertilizers presents new opportunities to improve crop nutrient use efficiency and reduce environmental impacts of agriculture. Nanoparticles, nano capsules, and nano clays can be engineered to control the release rate of nutrients to better match crop demands over time. Slow-release nano fertilizers may enhance nutrient absorption by plants while mitigating nutrient losses to the environment. Additionally, nano fertilizers can facilitate co-delivery of nutrients, growth regulators, and pesticides, allowing for more precise crop management practices. This review

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Adkison, Milo D. "Management implications of the effects of marine-derived nutrients on salmon population dynamics." Canadian Journal of Fisheries and Aquatic Sciences 67, no. 11 (2010): 1808–15. http://dx.doi.org/10.1139/f10-097.

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Pacific salmon ( Oncorhynchus spp.) populations transfer large quantities of nutrients from their marine habitats to their freshwater habitats, but the management implications of this nutrient import mechanism are not clear. I investigate whether the effects of these nutrient imports on salmon productivity can be detected, how well management strategies can perform if they ignore the effects of marine-derived nutrients when productivity is strongly dependent on nutrient levels, and under what circumstances nutrient-depleted stocks can recover. I find that stock-recruitment data do not usually

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Peterson, David L., and R. David Hammer. "Soil Nutrient Flux: A Component of Nutrient Cycling in Temperate Forest Ecosystems." Forest Science 32, no. 2 (1986): 318–24. http://dx.doi.org/10.1093/forestscience/32.2.318.

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Abstract Extractable nutrient levels in a floodplain forest soil varied significantly over the course of a year. Temporal variation in nutrient pools expressed as the ratio range/mean was in the following order: NH4-N &gt; NO3-N » extractable P &gt; exchangeable K &gt; exchangeable Mg &gt; exchangeable Ca. Lowest concentrations occurred during the summer months for all nutrients except NO3-N. The magnitude of this variation exceeded the size of several other nutrient fluxes within the ecosystem, which indicated that the soil system was a dynamic component of the floodplain fore

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Machovsky-Capuska, Gabriel E., and David Raubenheimer. "The Nutritional Ecology of Marine Apex Predators." Annual Review of Marine Science 12, no. 1 (2020): 361–87. http://dx.doi.org/10.1146/annurev-marine-010318-095411.

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Apex predators play pivotal roles in marine ecosystems, mediated principally through diet and nutrition. Yet, compared with terrestrial animals, the nutritional ecology of marine predators is poorly understood. One reason is that the field has adhered to an approach that evaluates diet principally in terms of energy gain. Studies in terrestrial systems, by contrast, increasingly adopt a multidimensional approach, the nutritional geometry framework, that distinguishes specific nutrients and calories. We provide evidence that a nutritional approach is likewise relevant to marine apex predators,

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Cahill, James F., and Gordon G. McNickle. "The Behavioral Ecology of Nutrient Foraging by Plants." Annual Review of Ecology, Evolution, and Systematics 42, no. 1 (2011): 289–311. http://dx.doi.org/10.1146/annurev-ecolsys-102710-145006.

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Adl, M. S., and VV SR Gupta. "Protists in soil ecology and forest nutrient cycling." Canadian Journal of Forest Research 36, no. 7 (2006): 1805–17. http://dx.doi.org/10.1139/x06-056.

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Recent progress in protistology has shown that these organisms (protists) are far more diverse than traditionally assumed by soil ecologists. Most studies have grouped these into motility groups, as amoebae, flagellates, and ciliates. Unfortunately, these do not represent functionally useful groups and do not have any ecological relevance to food web processes and community structure. Typically, abundance values have relied on the most probable number estimate based on bacterivore cultures. In fact, there are many functional groups of protists besides the bacterivores. These other functional g

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Smith Jr., C. T., M. L. McCormack Jr., J. W. Hornbeck, and C. W. Martin. "Nutrient and biomass removals from a red spruce – balsam fir whole-tree harvest." Canadian Journal of Forest Research 16, no. 2 (1986): 381–88. http://dx.doi.org/10.1139/x86-065.

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A mechanized whole-tree harvest was conducted on a watershed in central Maine dominated by Picearubens Sarg. and Abiesbalsamea (L.) Mill. The harvest removal and redistribution of biomass, nitrogen, phosphorus, calcium, magnesium, and potassium were estimated and evaluated with respect to estimates of site nutrient reserves. Regression equations were developed to estimate the nutrient contents and ovendry weight of the aboveground components of the Picearubens and Abiesbalsamea. Unit area estimates of nutrient and biomass removals were based on the application of the regression equations to a

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Zhao, Lei, Hua Yong Zhang, Fang Zhao, and Wang Tian. "Effects of Nutrient Enrichment on a Realistic Food Web." Applied Mechanics and Materials 700 (December 2014): 711–14. http://dx.doi.org/10.4028/www.scientific.net/amm.700.711.

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Nutrients supplies play a crucial role in population distribution of food webs, and it is one of the most important challenges in both theoretical and applied ecology to better understand the ‘bottom-up’ effect. Here we analyzed a realistic food web containing one limiting nutrient and two producer-consumer interactions. Through the simulations of the mean population size and the variability of each species, we found that 1) in infertile environment the coexistence of species increases with nutrient supply; 2) the mean values of species abundance increase dramatically at then remain constant w

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Huruba, Rangarirai, Caroline Ndlovu, Peter J. Mundy, Allan Sebata, and Duncan N. MacFadyen. "Short duration overnight cattle kraaling in natural rangelands leads to increased tree damage by elephants." Journal of Tropical Ecology 38, no. 1 (2021): 1–8. http://dx.doi.org/10.1017/s0266467421000353.

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AbstractElephants are attracted to nutrient hotspots created through short duration overnight cattle corralling (hereafter kraaling) in natural rangelands at Debshan, a mixed cattle-wildlife private ranch in central Zimbabwe, causing severe tree damage. We determined the effect of age of nutrient hotspot (i.e., time after kraal use) on elephant use and the extent of tree damage. Elephant use and tree damage were assessed in nutrient hotspots of varying ages (6, 12, 24, 36 and 48 months after kraal use) and in surrounding landscape. We also compared Acacia karroo bark nutrient and soil nutrient

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Goodnoe, Taylor T., Jeffrey P. Hill, and Ken Aho. "Effects of variation in carbon, nitrogen, and phosphorus molarity and stoichiometry on sex determination in the fern Ceratopteris richardii." Botany 94, no. 4 (2016): 249–59. http://dx.doi.org/10.1139/cjb-2015-0187.

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Carbon (C), nitrogen (N), and phosphorous (P) are needed by all organisms for basic biological processes. When an individual macronutrient is not accessible, nutrient limitation occurs. The stochiometric balance between multiple nutrients and individual concentrations are both vital for normal growth and development. Labile sex expression in plants is a phenotypic trait predicted to be sensitive to local nutrient conditions because males and females differ in their nutritional demands. We applied concepts from ecological stoichiometry to assess the effects of variation in individual nutrient c

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Munthali, Chandiona, Rintaro Kinoshita, Kazumitsu Onishi, et al. "A Model Nutrition Control System in Potato Tissue Culture and Its Influence on Plant Elemental Composition." Plants 11, no. 20 (2022): 2718. http://dx.doi.org/10.3390/plants11202718.

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Low or excessive soil fertility is a major constraint to potato production. The influence of each individual nutrient element on potato plants under field studies remains ambiguous due to the influence of environmental variations. Creating an in vitro model plant with deficient or excessive nutrient content will provide a more controlled study and allow for a better understanding of how the concentration of one element can affect the uptake of other elements. Here we designed a tissue culture-based nutrition control system to systematically analyze the effects of essential nutrients on potato

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Nakamura, Ryoji, Naoki Kachi, and Jun-Ichirou Suzuki. "Effects of nutrient distribution pattern and aboveground competition on size of individuals in Ipomoea tricolor populations." Botany 86, no. 11 (2008): 1260–65. http://dx.doi.org/10.1139/b08-082.

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We investigated whether the distribution pattern of soil nutrients interacted with aboveground competition to affect plant size in Ipomoea tricolor Cav. populations. Six plants per pot were grown in a factorial experiment with combinations of heterogeneous or homogeneous nutrient distribution pattern and presence or absence of aboveground competition. Plants were harvested and ranked by their aboveground biomasses. In analyses of plant sizes in all ranks simultaneously, mean plant size was significantly affected by nutrient distribution pattern, aboveground competition, and their interaction.

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Varga, Martina, Tanja Žuna Pfeiffer, Lidija Begović, et al. "Physiological Response of Nutrient-Stressed Lemna gibba to Pulse Colloidal Silver Treatment." Plants 12, no. 6 (2023): 1367. http://dx.doi.org/10.3390/plants12061367.

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Wastewater is a source of many environmental pollutants and potentially high concentrations of essential plant nutrients. Site-specific nutrient levels may influence the response of exposed plants to a chemical stressor. In the present study, we focused on the responses of model aquatic macrophyte swollen duckweed (Lemna gibba L.) to a short pulse exposure and a commercially available colloidal silver product as a potential environmental chemical stressor, combined with two levels of total nitrogen and phosphorus nutrition. Treatment with the commercially available colloidal silver product cau

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Torres-Duque, Fabiola, Armando Gómez-Guerrero, Libia I. Trejo-Téllez, Valentín J. Reyes-Hernández, and Arian Correa-Díaz. "Stoichiometry of needle litterfall of Pinus hartwegii Lindl. in two alpine forests of central Mexico." Revista Chapingo Serie Ciencias Forestales y del Ambiente 28, no. 1 (2021): 57–74. http://dx.doi.org/10.5154/r.rchscfa.2020.12.077.

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Introduction: It is essential to have baselines on nutrient dynamics in forests, due to disturbances that climate change may cause.Objective: To quantify the annual production of needles of Pinus hartwegii Lindl. and the proportion of nutrients in the alpine forests of Jocotitlán (JO) and Tláloc (TL) mountains, Estado de México.Materials and methods: A total of 12 circular needle litter traps (30 cm diameter) were placed at ground level, in each forest, distributed in four topographically contrasting sites. For one year, 228 leaf mass measurements and 1 140 chemical determinations were made to

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