Animal–plant–microbe interactions: direct and indirect effects of swan foraging behaviour modulate methane cycling in temperate shallow wetlands

Bodelier, Paul L. E.; Stomp, Maayke; Santamarı́a, Luis; Klaassen, Marcel; Laanbroek, Hendrikus J.

doi:10.1007/s00442-006-0445-9

Cited by 32 publications

(29 citation statements)

References 35 publications

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“…We have to keep in mind though that these potential methane production and oxidation analyses were in vitro assays under optimal conditions yielding potential activities with soil derived near the roots and rhizomes, but not actually on the roots, thereby not necessarily reflecting the in situ activity. Nevertheless, the observed in vitro rates were in the same range as observed for rice fields (Bodelier et al 2000, Kruger andFrenzel 2003), lake sediments (Bodelier et al 2006), and river floodplains (Kemnitz et al 2004, Steenbergh et al 2010) and hence, representative for wetland habitats. Also, the measured pore water methane concentrations were in the same range as observed in rice field soil (Bodelier et al 2000) and also displayed a characteristic depth distribution.…”

supporting

confidence: 50%

“…Potential methane production activity (PMP) was determined as described by Bodelier et al (2006), while potential methane oxidation activity (PMO) was described by Bodelier and Frenzel (1999). For more details see the Appendix.…”

Section: Experimental Designmentioning

confidence: 99%

“…A meta-analysis by Ostendorp (1989) concludes that various grazers and especially Graylag Geese (Anser anser) seriously harm healthy stands of emergent helophytes at different locations across Europe. Bodelier et al (2006) showed that swan-grazing on belowground tubers of a submerged macrophyte strongly reduced methane production activity of methanogenic microorganisms. However, whereas especially emergent helophytes have a disproportionally strong effect on methane emission, the impact of grazing on methane emission from helophytes remains largely unknown.…”

Section: Introductionmentioning

confidence: 99%

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Aquatic herbivores facilitate the emission of methane from wetlands

Dingemans

Bakker

Bodelier

2011

Ecology

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Abstract. Wetlands are significant sources of atmospheric methane. Methane produced by microbes enters roots and escapes to the atmosphere through the shoots of emergent wetland plants. Herbivorous birds graze on helophytes, but their effect on methane emission remains unknown. We hypothesized that grazing on shoots of wetland plants can modulate methane emission from wetlands. Diffusive methane emission was monitored inside and outside bird exclosures, using static flux chambers placed over whole vegetation and over single shoots. Both methods showed significantly higher methane release from grazed vegetation. Surface-based diffusive methane emission from grazed plots was up to five times higher compared to exclosures. The absence of an effect on methane-cycling microbial processes indicated that this modulating effect acts on the gas transport by the plants. Modulation of methane emission by animal-plant-microbe interactions deserves further attention considering the increasing bird populations and changes in wetland vegetation as a consequence of changing land use and climate change.

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supporting

confidence: 50%

Section: Experimental Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Aquatic herbivores facilitate the emission of methane from wetlands

Dingemans

Bakker

Bodelier

2011

Ecology

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“…Trampling by ducks foraging in ricefields after harvest can increase decomposition of residual surface straw by up to 78%, providing a clear benefit to farmers who otherwise spend up to $125 ha −1 in chopping, ploughing or disking residual rice straw (Bird, Pettygrove & Eadie, 2000;van Groenigen et al, 2003). Bioturbation by swans feeding on submerged macrophytes can reduce production of methane, a powerful greenhouse gas, owing to increased oxidation of sediments (Bodelier et al, 2006). However, the opposite occurs when waterbirds feed on helophytes (emergent plants) (Dingemans, Bakker & Bodelier, 2011).…”

Section: (5) Nutrient and Biogeochemical Cyclingmentioning

confidence: 99%

Ecosystem services provided by waterbirds

2013

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Ecosystem services are ecosystem processes that directly or indirectly benefit human well-being. There has been much recent literature identifying different services and the communities and species that provide them. This is a vital first step towards management and maintenance of these services. In this review, we specifically address the waterbirds, which play key functional roles in many aquatic ecosystems, including as predators, herbivores and vectors of seeds, invertebrates and nutrients, although these roles have often been overlooked. Waterbirds can maintain the diversity of other organisms, control pests, be effective bioindicators of ecological conditions, and act as sentinels of potential disease outbreaks. They also provide important provisioning (meat, feathers, eggs, etc.) and cultural services to both indigenous and westernized societies. We identify key gaps in the understanding of ecosystem services provided by waterbirds and areas for future research required to clarify their functional role in ecosystems and the services they provide. We consider how the economic value of these services could be calculated, giving some examples. Such valuation will provide powerful arguments for waterbird conservation.

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“…PMP was determined with a method modified from Bodelier et al (2006). Five mL of the slurry was also transferred to four Labco exetainers.…”

Section: Ch 4 Oxidation and Production Potentialsmentioning

confidence: 99%

Snails promote methane release from a freshwater lake ecosystem

Zhao

Xiao

et al. 2014

Front. Environ. Sci.

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Benthic fauna, as ecosystem engineers, can strongly affect microbial-driven ecosystem biogeochemical cycling. However, the effects of benthic fauna, especially epifauna, on CH 4 cycling remain still elusive. In this study, CH 4 effluxes were both measured along a gradient of snail density in a freshwater lake ecosystem in China, and monitored in manipulated laboratory microcosms with and without snails. Field CH 4 efflux was significantly increased with snail density. Likewise, the stimulating effects of freshwater snails on CH 4 effluxes were evident in the homogenized indoor microcosms. These results show that snails can stimulate CH 4 efflux in the freshwater lake ecosystem. Moreover, the average efflux of CH 4 emitted from snails' habitats has reached 15.33 mg CH 4 -C m −2 d −1 . By comparing with those emitted from vegetated coastal marsh and alpine wetland, this data indicates that snails' habitats are strong sources of CH 4 in a freshwater ecosystem. This study suggests identifying and modeling epifauna activity as a function of CH 4 cycling could improve the mechanistic understanding of wetland biogeochemical cycling responses to climate change.

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Animal–plant–microbe interactions: direct and indirect effects of swan foraging behaviour modulate methane cycling in temperate shallow wetlands

Cited by 32 publications

References 35 publications

Aquatic herbivores facilitate the emission of methane from wetlands

Aquatic herbivores facilitate the emission of methane from wetlands

Ecosystem services provided by waterbirds

Snails promote methane release from a freshwater lake ecosystem

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