Ecological impact of transhumance on the trophic state of alpine lakes in Gran Paradiso National Park

Tiberti, Rocco; Rogora, Michela; Tartari, Gabriele; Callieri, Cristiana

doi:10.1051/kmae/2014030

Cited by 15 publications

(18 citation statements)

References 40 publications

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“…Assuming that such lakes are not exposed to harmful influences including wastewater and heated water discharge, melioration works, etc., the primary causes of changes occurring in these ecosystems should be particularly associated with natural conditions. It should be emphasised, however, that even such lakes are indirectly affected by human activity through air pollution (Moiseenko et al, 1997;Van Drooge et al, 2011) or grazing of animals (Tiberti et al, 2014). Due to their quasi-natural state, mountain lakes are frequently used as indicators of climatic changes (Hamerlík and Bitušík, 2009).…”

Section: Introductionmentioning

confidence: 99%

Long-term changes in the hydrological regime of high mountain Lake Morskie Oko (Tatra Mountains, Central Europe)

Ptak

Wrzesiński

Choiński

2017

Journal of Hydrology and Hydromechanics

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Abstract:The paper discusses changes in the hydrological regime of high mountain Lake Morskie Oko located in the Tatra Mountains, in the Tatra Mountains National Park, a UNESCO biosphere reserve (MaB). According to the research conducted in the years 1971-2015, its water stages decreased by 3.5 cm·dec -1 , mean annual water temperature increased by 0.3ºC·dec -1 and the duration of ice phenomena and ice cover was reduced by 10 day·dec -1 . No considerable changes in maximum values of ice cover thickness were recorded. Such tendencies are primarily caused by long-term changes in climatic conditions -air temperature and atmospheric precipitation. The hydrological regime of the lake was also determined by changes in land use in the lake's catchment and its location in high mountains.

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Section: Introductionmentioning

confidence: 99%

Long-term changes in the hydrological regime of high mountain Lake Morskie Oko (Tatra Mountains, Central Europe)

Ptak

Wrzesiński

Choiński

2017

Journal of Hydrology and Hydromechanics

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“…In European mountain ranges, livestock have been an important part of the landscape since Roman times. In Europe, cattle can cause eutrophic conditions in lakes, although it tends to be restricted to small, endorheic lakes (e.g., Catalan, Ballesteros, Gacia, Palau, & Camarero, 1993), or in lakes with intensive cattle grazing (e.g., Tiberti et al, 2014). Paleolimnological studies in Alpine lakes have reported increased lake productivity during periods when pasturing was intensified (e.g., Lake Seebergsee; Hausmann et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

“…). Even temporary grazing by low numbers of cattle was shown to increase the trophic status of oligotrophic lakes in the Italian Alps (Tiberti, Rogora, Tartari, & Callieri, ). As páramo lakes are highly oligotrophic ecosystems, they might be sensitive to even small nutrient inputs resulting from extensive cattle grazing.…”

Section: Introductionmentioning

confidence: 99%

“…Studies in North America and Europe have demonstrated that even low densities of cattle can impact water quality and the trophic status of aquatic ecosystems in mountain ranges (e.g., Belsky, Matzke, & Uselman, 1999;Derlet et al 2012). Even temporary grazing by low numbers of cattle was shown to increase the trophic status of oligotrophic lakes in the Italian Alps (Tiberti, Rogora, Tartari, & Callieri, 2014). As páramo lakes are highly oligotrophic ecosystems, they might be sensitive to even small nutrient inputs resulting from extensive cattle grazing.…”

Section: Introductionmentioning

confidence: 99%

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Link between cattle and the trophic status of tropical high mountain lakes in páramo grasslands in Ecuador

et al. 2018

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The high‐altitude páramo grasslands of the Andes Mountains are rich in lakes that represent a source of high‐quality water for the region. Páramo grasslands are mainly used for cattle grazing. The aim of this study was to investigate the influence of cattle on the trophic status of páramo lakes. In a survey of 30 lakes in Cajas National Park (NP), a semi‐quantitative estimate for cattle abundance in the vicinity of the lakes was the best predictor of the chlorophyll‐a concentrations in the lakes. Cattle abundance was also significantly related to phytoplankton community composition, being associated with a shift from chlorophytes to diatoms and dinoflagellates. Lake Culibrillas, a lake situated in the Sangay National Park (Sangay NP), a region with much more intensive cattle farming than Cajas NP exhibited a chlorophyll‐a concentration greater than twice as much as the largest concentration measured in the Cajas NP lakes, being characterized by a dinoflagellate bloom. Although chlorophyll‐a concentrations increased with cattle abundance, the concentrations in all the study lakes remained low (0.02–1.8 μg/L), indicating that extensive cattle farming does not cause severe eutrophication. The results of this study nevertheless indicate that intensification of livestock farming in páramo grasslands might result in a deterioration of water quality in the páramo lakes.

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“…Nonetheless, habitat alterations, as expected by an environmental filtering assumption, also led to numerous changes in both local and regional scales. Specifically in lakes, a variety of causes has been pointed to change habitats and communities: transhumance, the summer transferring of the livestock to highlands in European Alps, alters the trophic state of lakes near highly pressured pastures (Tiberti et al 2014); tourism causes pollution and contamination (Dokulil 2014); mining activities that deposited tailings in lakes led to siltation and/or heightening of metal concentrations, affecting local biodiversity (Bozelli et al 2000, Klaverkamp et al 2002, McDonald et al 2010. Mining activities have also been showed to cause loss in the diversity of primary producers (Niyogi et Oecol.…”

Section: Introductionmentioning

confidence: 99%

Two-Decade Remaining Effects of Bauxite Tailings on the Fish Taxonomic Structure of a Clear-Water Floodplain Lake in Central Amazon (Batata Lake, Pará State, Brazil)

et al. 2017

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In recent decades, anthropic disturbances have led to major changes in biological communities. Batata Lake (Oriximiná, Pará State, Brazil) is located in the flood area of the right bank of Trombetas River and received effluents rich in mineral waste due to near mining activities in the 80's, which led to the siltation of 30% of its area and numerous local impacts. We monitored about to 20 years the ichthyofauna of Batata Lake and we assessed if there is still remaining effects of the siltation by bauxite tailings in the affected area. We sampled in Silted and Non-Silted areas in the filling period of 1991 to 2015, using a set of gillnets with mesh sizes between 15 to 70 mm. Differences in taxonomic structure (estimated richness, Simpson's dominance and Shannon's diversity) and in community composition among Silted and Non-Silted areas were evaluated with multivariate analysis, considering year as covariate. We sampled 10,435 individuals classified in 141 species. Only 41 species represented 90% of total abundance, which we considered the numerically dominant fishes in the lake. Among taxonomic indices, only estimated richness exhibited a significant trend through time; high estimated richness in the Silted area during the first years of monitoring and posterior decreasing. This negative slope was highly affected by a single point in 1992, so we considered it a particular case in time and not a real temporal trend. Significant changes in community composition occurred among areas by differentiation in species abundance, and not by species loss. These results show that siltation effects in Batata Lake did not express itself as a loss of biodiversity, but in the reconfiguration of the community composition according to species niche.

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Ecological impact of transhumance on the trophic state of alpine lakes in Gran Paradiso National Park

Cited by 15 publications

References 40 publications

Long-term changes in the hydrological regime of high mountain Lake Morskie Oko (Tatra Mountains, Central Europe)

Long-term changes in the hydrological regime of high mountain Lake Morskie Oko (Tatra Mountains, Central Europe)

Link between cattle and the trophic status of tropical high mountain lakes in páramo grasslands in Ecuador

Two-Decade Remaining Effects of Bauxite Tailings on the Fish Taxonomic Structure of a Clear-Water Floodplain Lake in Central Amazon (Batata Lake, Pará State, Brazil)

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