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Abstract
We investigated the inter-annual and seasonal variation of the aboveground net primary productivity (ANPP), and leaf nitrogen and phosphorus concentrations across two different types of wet meadows (spring-fed and riparian) in Tierra del Fuego Island, Southern Patagonia. In addition, we estimated grazing effects on ANPP, the nature of nutrient limitation, and the resorption efficiencies for both nutrients. ANPP showed a high inter-annual variation (CV = [ver mas...]
dc.contributor.authorCipriotti, Pablo Ariel
dc.contributor.authorCollantes, Marta Beatriz
dc.contributor.authorRauber, Ruth Bibiana
dc.contributor.authorBraun, Karen
dc.contributor.authorEscartin, Celina Andrea
dc.date.accessioned2019-03-22T12:28:12Z
dc.date.available2019-03-22T12:28:12Z
dc.date.issued2018-02
dc.identifier.issn0277-5212
dc.identifier.issn1943-6246
dc.identifier.otherhttps://doi.org/10.1007/s13157-017-0955-8
dc.identifier.urihttps://link.springer.com/article/10.1007/s13157-017-0955-8
dc.identifier.urihttp://hdl.handle.net/20.500.12123/4704
dc.description.abstractWe investigated the inter-annual and seasonal variation of the aboveground net primary productivity (ANPP), and leaf nitrogen and phosphorus concentrations across two different types of wet meadows (spring-fed and riparian) in Tierra del Fuego Island, Southern Patagonia. In addition, we estimated grazing effects on ANPP, the nature of nutrient limitation, and the resorption efficiencies for both nutrients. ANPP showed a high inter-annual variation (CV = 49–57%), typical seasonal dynamics with a summer peak, and higher annual means at the spring-fed meadows (532 g∙m−2∙yr.−1) compared to the riparian meadows (310 g∙m−2∙yr.−1) with a higher contribution of graminoids (50–65%). Sheep grazing reduced a 66% the annual mean of ANPP (108 g∙m−2∙yr.−1) in riparian meadows. Leaf nitrogen concentrations were similar to reported values for graminoids from temperate and cold regions (1.5–2.5%), while leaf phosphorus concentrations were markedly higher (0.2–0.3%), indicating a nitrogen limitation. Resorption efficiency was 54.2% for nitrogen and 48.2% for phosphorus, exhibiting incomplete resorption proficiency for both nutrients. Our results represent valuable information to design sustainable management strategies for wetlands according to their spatial and temporal variation, and to define a baseline of vegetation functioning to assess the impact of climate change in high-latitude southern ecosystems.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSpringeres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceWetlands 38 (1) : 37–49 (February 2018)es_AR
dc.subjectEcosistemaes_AR
dc.subjectEcosystemseng
dc.subjectPastoreoes_AR
dc.subjectGrazingeng
dc.subjectPrados de Siegaes_AR
dc.subjectMeadowseng
dc.subjectNitrógenoes_AR
dc.subjectNitrogeneng
dc.subjectFósforoes_AR
dc.subjectPhosphoruseng
dc.subjectProductividades_AR
dc.subjectProductivityeng
dc.subjectTemperaturaes_AR
dc.subjectTemperatureeng
dc.subject.otherTierra del Fuegoes_AR
dc.titleInter-Annual and Seasonal Variation of ANPP and Leaf Nutrient Concentration in Cold-Temperate Wetlands of Tierra del Fuegoes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA San Luises_AR
dc.description.filFil: Cipriotti, Pablo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información; Argentinaes_AR
dc.description.filFil: Collantes, Marta Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales. Laboratorio de Ecología de Pastizales; Argentinaes_AR
dc.description.filFil: Rauber, Ruth Bibiana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Luis; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales. Laboratorio de Ecología de Pastizales; Argentinaes_AR
dc.description.filFil: Braun, Karen. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales. Laboratorio de Ecología de Pastizales; Argentina. Ministerio de Ambiente y Desarrollo Sustentable; Argentinaes_AR
dc.description.filFil: Escartin, Celina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales. Laboratorio de Ecología de Pastizales; Argentinaes_AR
dc.subtypecientifico


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