Latitudinal variation in nutrient stoichiometry and chlorophyll-nutrient relationships in lakes: A global study

Abell, Jonathan Michael; Özkundakci, Deniz; Hamilton, David P.; Jones, John R.

doi:10.1127/1863-9135/2012/0272

Cited by 75 publications

(71 citation statements)

References 56 publications

(66 reference statements)

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“…Consistent with extensive eutrophication literature (OECD 1982, Brown et al 2000, Champion and Currie 2000, Smith 2003, Jones et al 2011, Abell et al 2012), this study shows strong power relationships between mean water column concentrations of TP and phytoplankton biomass in geographically diverse lacustrine and fluvial systems (Fig. 1a and b).…”

Section: Discussionsupporting

confidence: 89%

“…(6) In a related study, Abell et al (2012) analyzed data from 1316 lakes worldwide to explore nutrient-maximum algal biomass relationships using quantile regression methods and obtained the empirical model…”

Section: Discussionmentioning

confidence: 99%

“…Cultural eutrophication has degraded water quality in aquatic ecosystems distributed worldwide (Abell et al 2012). Anthropogenic activities have dramatically increased global nitrogen and phosphorus exports from the landscape to rivers, lakes, and estuaries (Vitousek et al 1997, Bennett et al 2001, Graham and Smith 2004.…”

Section: Introductionmentioning

confidence: 99%

“…Quantifying the frequency that algal biomass exceeds a set "threshold" value is one metric to describe nuisance conditions (Walmsley 1984, Walker 1985, Walker and Havens 1995, Bachmann et al 2003, Jones et al 2011. Others have delineated the upper boundary of Chl-a across the range of phosphorus concentrations found in study lakes to illustrate the extreme expression of algal biomass (Brown et al 2000, Jones et al 2011, Abell et al 2012, Xu et al 2015a.…”

Section: Introductionmentioning

confidence: 99%

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Effects of eutrophication on maximum algal biomass in lake and river ecosystems

Smith

2016

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To further clarify empirical relationships between maximum phytoplankton biomass per unit total phosphorus (TP) and the maximum:mean phytoplankton biomass ratio, predictive models were created from a meta-analysis of datasets from lakes worldwide. Peak concentrations of planktonic chlorophyll a were on average 2.6 times greater than the mean, with most maximum:mean chlorophyll a ratios falling within less than an order-of-magnitude band (from 1.2 to 6 times the mean value). Peak concentrations of planktonic algal biovolume in 22 Organisation for Economic Co-operation and Development (OECD) lakes were on average 3.3 times greater than the mean, with maximum:mean biovolume ratios ranging from 1.2 to 6.3. By contrast, the temporal dynamics of planktonic (suspended) algal biomass in Minnesota streams and rivers were far more constrained; peak concentrations of planktonic chlorophyll a were only on average 1.8 times greater than the mean, with maximum:mean chlorophyll a ratios ranging from 1.3 to 3.8. These data suggest regional differences in maximum chlorophyll a values may exist. Parallel analyses of periphyton biomass in streams and rivers showed far greater variability in the maximum:mean chlorophyll ratio for benthic algae. Peak concentrations of attached chlorophyll a were on average 4.3 times greater than the mean, with the observed maximum:mean chlorophyll a ratios exhibiting exceptionally high variability (ranging from 1.0 to 50 times the mean value), likely reflecting differences in the temporal dynamics of planktonic and benthic algal growth in freshwater ecosystems.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of eutrophication on maximum algal biomass in lake and river ecosystems

Smith

2016

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“…The different pelagic processes between temperate and tropical lakes were summarised by Sarmento (2012): generally, tropical lakes are (1) more efficient in phytoplankton primary production on a given nutrient base than temperate lakes, (2) more often nitrogen rather than phosphorus limited and (3) typified by strong non-seasonal variation superimposed on a weaker seasonal cycle (see also Abell, € Ozkundakci, Hamilton, & Jones, 2012;Catalan & Donato Rondon, 2016;Downing et al, 1999;Lewis, 2010). Although these authors do not explicitly discuss macrophytes, there are reasons to assume that the impact of invasive macrophytes on ecosystem processes would differ between temperate and tropical lakes.…”

Section: Introductionmentioning

confidence: 99%

Regime shift in the littoral ecosystem of volcanic Lake Atitlán in Central America: combined role of stochastic event and invasive plant species

et al. 2018

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Different functional groups of macrophytes vary in their impact on aquatic ecosystem structure and processes. The introduction of new species with different growth form, combined with a stochastic event, may have serious and irreversible consequences on lake functioning. Our goals were to document and explain physical, chemical, metabolic and biotic changes in the littoral zones of a volcanic lake before and following two coinciding events: invasion by a submersed macrophyte, Hydrilla verticillata (Hydrocharitaceae), followed by a rapid increase in the lake water level (>2.5 m). We recorded plant biomass, plant tissue C:N:P stoichiometry, macroinvertebrates, water characteristics data along transects through littoral zones, and measured gas emission in controlled mesocosms and in the lake. The native emergent species, Schoenoplectus californicus (Cyperaceae), was generally not able to survive such a rapid water level increase, and Hydrilla spread and formed dense mats further preventing Schoenoplectus regeneration. The impact of another introduced species, the free‐floating Eichhornia crassipes (Pontederiaceae), was more localised, despite its much longer presence at the lake. Although the three species had comparable standing biomass, the two invader species had lower C:N:P ratios than Schoenoplectus, resulting in faster decomposition rates and indicating potential shifts in nutrient cycling within the ecosystem. The oxygen profile of the water column was altered by the non‐native species in a significantly different manner: in Eichhornia, the saturation concentrations dropped down to 30%–50% of dissolved oxygen, while oxygen supersaturation was recorded in Hydrilla. Both Schoenoplectus and Eichhornia patches exhibited comparable carbon dioxide (CO2) fluxes, sequestering 230 and 300 mg CO2 m−2 hr−1, respectively, during the day and emitting 250 and 200 mg CO2 m−2 hr−1, respectively, during the night. Contrary to these two species, Hydrilla patches sequestered CO2 during the day (34 mg CO2 m−2 hr−1) and night (44 mg CO2 m−2 hr−1). The invasive species maintained a richer community of macroinvertebrates compared to several native species (excluding Schoenoplectus), both in taxa diversity and in numbers of individuals. When the results are considered in the regional context, an increase in nutrient supply could lead to the dominance of free‐floating plants. We discussed management options more broadly considering the negative impacts of introduced species balanced against their beneficial effects, in the context of environmental changes.

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Lake nutrient stoichiometry is less predictable than nutrient concentrations at regional and sub‐continental scales

Collins

Oliver

Lapierre

et al. 2017

Ecological Applications

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Production in many ecosystems is co-limited by multiple elements. While a known suite of drivers associated with nutrient sources, nutrient transport, and internal processing controls concentrations of phosphorus (P) and nitrogen (N) in lakes, much less is known about whether the drivers of single nutrient concentrations can also explain spatial or temporal variation in lake N:P stoichiometry. Predicting stoichiometry might be more complex than predicting concentrations of individual elements because some drivers have similar relationships with N and P, leading to a weak relationship with their ratio. Further, the dominant controls on elemental concentrations likely vary across regions, resulting in context dependent relationships between drivers, lake nutrients and their ratios. Here, we examine whether known drivers of N and P concentrations can explain variation in N:P stoichiometry, and whether explaining variation in stoichiometry differs across regions. We examined drivers of N:P in ~2,700 lakes at a sub-continental scale and two large regions nested within the sub-continental study area that have contrasting ecological context, including differences in the dominant type of land cover (agriculture vs. forest). At the sub-continental scale, lake nutrient concentrations were correlated with nutrient loading and lake internal processing, but stoichiometry was only weakly correlated to drivers of lake nutrients. At the regional scale, drivers that explained variation in nutrients and stoichiometry differed between regions. In the Midwestern U.S. region, dominated by agricultural land use, lake depth and the percentage of row crop agriculture were strong predictors of stoichiometry because only phosphorus was related to lake depth and only nitrogen was related to the percentage of row crop agriculture. In contrast, all drivers were related to N and P in similar ways in the Northeastern U.S. region, leading to weak relationships between drivers and stoichiometry. Our results suggest ecological context mediates controls on lake nutrients and stoichiometry. Predicting stoichiometry was generally more difficult than predicting nutrient concentrations, but human activity may decouple N and P, leading to better prediction of N:P stoichiometry in regions with high anthropogenic activity.

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Latitudinal variation in nutrient stoichiometry and chlorophyll-nutrient relationships in lakes: A global study

Cited by 75 publications

References 56 publications

Effects of eutrophication on maximum algal biomass in lake and river ecosystems

Effects of eutrophication on maximum algal biomass in lake and river ecosystems

Regime shift in the littoral ecosystem of volcanic Lake Atitlán in Central America: combined role of stochastic event and invasive plant species

Lake nutrient stoichiometry is less predictable than nutrient concentrations at regional and sub‐continental scales

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