Effects of simulated climate warming on macrophytes in freshwater microcosm communities

McKee, Dermot; Hatton, Keith; Eaton, John W.; Atkinson, David; Atherton, Alan; Harvey, Ian F.; Moss, Brian

doi:10.1016/s0304-3770(02)00048-7

Cited by 110 publications

(91 citation statements)

References 23 publications

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“…Macrophytes are key components in the ecological functioning of shallow lake ecosystems and they are affected by warming in various ways (Kosten et al, 2009). At the level of the plant individual, warming may affect plant physiology (Madsen and Brix, 1997;Rooney and Kalff, 2000), growth (Haag and Gorham, 1977;Short and Neckles, 1999) and reproduction (Van Vierssen et al, 1984;Mckee et al, 2002). Furthermore, warming may result in * Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

Effects of warming on Potamogeton crispus growth and tissue stoichiometry in the growing season

et al. 2016

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a b s t r a c tIncreased water temperature due to climate change may affect macrophyte phenology and nutrient content. In experimentally heated mesocosms the emergence and growth of Potamogeton crispus shoots under ambient and increased temperatures (+4.5 • C) were tracked over 55 days. At the end of the experiment we measured the C, N and P content of the P. crispus leaves. The results indicate that warming advanced the emergence of P. crispus shoots by approximately 10 days, whereas the final number of shoots and plant biomass were similar in ambient and heated tanks. Furthermore, warming influenced the ecological stoichiometry of this plant significantly. Leaf C and N content were both less in the heated tanks resulting in an increase in C:N ratios, whereas P content and C:P and N:P ratios were not affected.

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Section: Introductionmentioning

confidence: 99%

Effects of warming on Potamogeton crispus growth and tissue stoichiometry in the growing season

et al. 2016

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“…Kaldy (2014) showed the temperature-induced increase in eelgrass respiration can be problematic even at temperatures between 10°C and 20°C when light is limiting photosynthesis. In theory, eelgrass could escape deleterious temperatures by retreating to deeper, cooler waters (Mckee et al 2002;York et al 2013); however, this is not likely to be a successful strategy for adapting to future climate change, as the lower depth of eelgrass is restricted by light penetration (Thayer, Kenworthy, and Fonseca 1984;Mckee et al 2002;York et al 2013). The poor tolerance of this species to elevated temperatures suggests a bleak future in the Chesapeake Bay.…”

Section: A Warming Estuarymentioning

confidence: 99%

“…However, the response of freshwater aquatic plants to climate warming is species-specific, and varies even for locally adapted "biotypes" (e.g., Barko and Smart 1981;Pip 1989;Svensson and Wigren-Svensson 1992;Santamaría and Van Vierssen 1997;Rooney and Kalff 2000;Sala et al 2000;Amano, Iida, and Kosuge 2012). Some species exhibit earlier germination and increased productivity, while others do not (Mckee et al 2002;Lacoul and Freedman 2006). Most submerged freshwater plants require temperatures above 10°C during the growing season, exhibit optimal growth between 10°a nd 20°C, but do not survive temperatures above 45°C (Anderson 1969;Lacoul and Freedman 2006).…”

Section: A Warming Estuarymentioning

confidence: 99%

“…Light levels can also directly impact the ability of SAV to withstand elevated temperatures; insufficient light levels weaken plants by altering the photosynthesis:respiration balance and depriving plants of photosynthate for growth (e.g., Moore et al 2012). In addition, poor water transparency can prevent SAV from retreating to deeper, cooler waters (Thayer, Kenworthy, and Fonseca 1984;Mckee et al 2002;York et al 2013). This highlights the critical need to meet water quality targets, by managing nutrient and sediment loadings, in order to protect and restore SAV resources in the future.…”

Section: Coastal Zone Acidificationmentioning

confidence: 99%

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Twenty-first century climate change and submerged aquatic vegetation in a temperate estuary: the case of Chesapeake Bay

Arnold

Zimmerman

Engelhardt

et al. 2017

Ecosyst Health Sustain

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Introduction: The Chesapeake Bay was once renowned for expansive meadows of submerged aquatic vegetation (SAV). However, only 10% of the original meadows survive. Future restoration efforts will be complicated by accelerating climate change, including physiological stressors such as a predicted mean temperature increase of 2-6°C and a 50-160% increase in CO 2 concentrations. Outcomes: As the Chesapeake Bay begins to exhibit characteristics of a subtropical estuary, summer heat waves will become more frequent and severe. Warming alone would eventually eliminate eelgrass (Zostera marina) from the region. It will favor native heat-tolerant species such as widgeon grass (Ruppia maritima) while facilitating colonization by non-native seagrasses (e.g., Halodule spp.). Intensifying human activity will also fuel coastal zone acidification and the resulting high CO 2 /low pH conditions may benefit SAV via a "CO 2 fertilization effect." Discussion: Acidification is known to offset the effects of thermal stress and may have similar effects in estuaries, assuming water clarity is sufficient to support CO 2 -stimulated photosynthesis and plants are not overgrown by epiphytes. However, coastal zone acidification is variable, driven mostly by local biological processes that may or may not always counterbalance the effects of regional warming. This precarious equipoise between two forcesthermal stress and acidification -will be critically important because it may ultimately determine the fate of cool-water plants such as Zostera marina in the Chesapeake Bay. Conclusion: The combined impacts of warming, coastal zone acidification, water clarity, and overgrowth of competing algae will determine the fate of SAV communities in rapidly changing temperate estuaries.

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“…For instance, Macel et al (2014) showed that invasive species of Asteraceae have different and more specific metabolic profiles compared to native species. Comparative responses of native and invasive aquatic plants to increased temperatures have been investigated in a few studies (McKee et al, 2002;Mormul et al, 2012). However, to our knowledge only two studies have combined both morphological trait approaches and metabolic profiling on aquatic plants in order to evaluate an integrated response to abiotic factors (Hussner et al, 2016;Thouvenot et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Impact of climate warming on carbon metabolism and on morphology of invasive and native aquatic plant species varies between spring and summer

Gillard

Thiébaut

Rossignol

et al. 2017

Environmental and Experimental Botany

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The rise of global surface temperature by between 1.2°C and 4°C by 2100 is expected to affect freshwater ecosystems and the growth of aquatic plants. By extending the distribution range of invasive macrophytes, climate warming could increase their management costs. The aim of this study was to test the impact of a 3°C warming in spring and in summer on the morphology and physiology Page 2/34 of two native species (Mentha aquatica, Myosotis scorpioides) and two invasive species (Ludwigia hexapetala, Myriophyllum aquaticum) under controlled conditions. Our study showed that the increase of spring temperature induced morphological modifications for all species, while a 3°C warming induced changes in carbohydrates composition for native species in spring, and modification of carbohydrate content for invasive species at both seasons. Patterns of carbohydrate content group the two invasive species together, possibly highlighting common physiological mechanisms. Moreover, the increase of spring temperature favoured the apical and/or lateral growth solely for invasive species. Hence, the invasive species specific response to warming suggests that higher temperature may favour their growth in spring, which might allow them to colonise the water column earlier than natives. This competitive advantage could affect aquatic ecosystems functioning and biodiversity in the coming years.

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Effects of simulated climate warming on macrophytes in freshwater microcosm communities

Cited by 110 publications

References 23 publications

Effects of warming on Potamogeton crispus growth and tissue stoichiometry in the growing season

Effects of warming on Potamogeton crispus growth and tissue stoichiometry in the growing season

Twenty-first century climate change and submerged aquatic vegetation in a temperate estuary: the case of Chesapeake Bay

Impact of climate warming on carbon metabolism and on morphology of invasive and native aquatic plant species varies between spring and summer

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