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dc.contributor.author
Trochine, Carolina
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dc.contributor.author
Guerrierie, Marcelo
dc.contributor.author
Liboriussen, Lone
dc.contributor.author
Lauridsen, Torben L.
dc.contributor.author
Jeppesen, Erik
dc.date.available
2017-01-26T15:32:02Z
dc.date.issued
2014-05
dc.identifier.citation
Trochine, Carolina; Guerrierie, Marcelo; Liboriussen, Lone; Lauridsen, Torben L.; Jeppesen, Erik; Effects of nutrient loading, temperature regime and grazing pressure on nutrient limitation of periphyton in experimental ponds; Wiley; Freshwater Biology (print); 59; 5; 5-2014; 905-917
dc.identifier.issn
0046-5070
dc.identifier.uri
http://hdl.handle.net/11336/11977
dc.description.abstract
We studied nutrient limitation of periphytic algae (henceforth periphyton) in 24 mesocosms simulating shallow lakes with two nutrient levels, enriched (with added nitrogen, N, and phosphorus, P) and unenriched (control), and three temperature scenarios, ambient, A2 from the Intergovernmental Panel on Climate Change (IPCC) and A2 + 50%. Periphyton growth (measured as chlorophyll a) was investigated four times in situ using nutrient-diffusing substrata. The effect of grazing was also manipulated using exclusion cages.
We found that periphyton responded differently to nutrient addition bioassays (N and P) depending on the background nutrient concentration and warming scenario. Our results indicate that single-nutrient limitation prevailed for periphyton in our experimental temperate shallow lakes. The responses were season sensitive.
Periphyton in the unenriched mesocosms were P-limited in early summer in the ambient and A2 scenarios, N-limited in late summer in these two climate scenarios, not nutrient-limited in autumn and P-limited in spring in all climate scenarios. Periphyton in the A2 + 50% scenario showed a positive response to N and P added together in early summer.
In contrast, periphyton in the enriched mesocosms showed no clear nutrient limitation, except for short-term periods of P limitation in the warmer systems. Grazers did not affect the quantitative response of periphyton to nutrient addition, and the concentrations of P and N as well as mean monthly temperature were the main environmental factors driving P or N limitation.
We conclude that warming in low-productivity lakes affects the seasonality of N limitation and changes the single-nutrient limitation of periphyton into NP co-limitation. This last observation suggests that warming reduces the sensitivity of temperate shallow lakes to bottom-up perturbations.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Grazers
dc.subject
Nitrogen
dc.subject
Phosphorus
dc.subject
Primary Producers
dc.subject
Temperate Lakes
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Effects of nutrient loading, temperature regime and grazing pressure on nutrient limitation of periphyton in experimental ponds
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-12T14:22:06Z
dc.journal.volume
59
dc.journal.number
5
dc.journal.pagination
905-917
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Trochine, Carolina. University Aarhus; Dinamarca. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue; Argentina
dc.description.fil
Fil: Guerrierie, Marcelo. University Aarhus; Dinamarca
dc.description.fil
Fil: Liboriussen, Lone. University Aarhus; Dinamarca
dc.description.fil
Fil: Lauridsen, Torben L.. University Aarhus; Dinamarca. Sino-Danish Education and Research Centre; China
dc.description.fil
Fil: Jeppesen, Erik. University Aarhus; Dinamarca. Sino-Danish Education and Research Centre; China
dc.journal.title
Freshwater Biology (print)
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/fwb.12314/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/fwb.12314
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