2024-03-28T18:23:39Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/443422015-10-15T08:22:52Zcom_10261_88com_10261_8col_10261_341
Remote European mountain lake ecosystems: regionalisation and ecological status
Catalán, Jordi
Curtis, C.
Kernan, M.
Long-range pollution
Sub-arctic lakes
Alpine lakes
Climate warming
Lake typology
14 páginas, 3 figuras, 2 tablas.
1. A survey of c. 350 remote high altitude and high latitude lakes from 12 different
mountain regions across Europe was undertaken to explore ecosystem variability, climate
forcing, environmental conditions and pollution threats at a scale not previously
attempted.
2. Lakes were sampled for a range of contemporary and sub-fossil organisms including
planktonic crustaceans, rotifers, littoral invertebrates, chironomids, diatoms and
cladocerans. Survey and cartographic data were used to determine environmental
characteristics at each site. Organic pollutants and trace metal concentrations were
measured in the lake sediment.
3. A number of separate studies were undertaken which examined the environmental
characteristics of the surveyed lakes (climate forcing and chemical composition),
distribution of biota relative to local, regional and biogeographical factors and pollution
threats (acidification, heavy metals and persistent organic pollutants) to these sensitive
ecosystems.
4. There is a strong regional element to the way that environmental factors combine
(including climate and pollution threats) and the biota responds in mountain lakes across
Europe. From a management perspective it is clear that lake classification and the
development of useful typologies and assessments of reference conditions should be
undertaken at regional rather than pan-European scales.
5. There are some common features across lake districts related to the timing of
industrialisation, but the studies carried out on metals, organic pollutants and nitrate
deposition indicate that each lake district has distinct pollution threats. Climate warming
already affects most of the lake districts and there are considerable uncertainties as to how
this will modify conditions in remote European mountain systems.
6. The lake district concept goes beyond a geographical construct and merits further
theoretical and experimental development as an ecological concept.
2012-01-17T09:31:04Z
2012-01-17T09:31:04Z
2009
artículo
Freshwater biology 54 : 2419-2432 (2009)
0046-5070
http://hdl.handle.net/10261/44342
10.1111/j.1365-2427.2009.02326.x
eng
http://dx.doi.org/10.1111/j.1365-2427.2009.02326.x
closedAccess
Blackwell Publishing