Search results for "attori"
showing 10 items of 225 documents
L’analisi fattoriale confermativa e le sue applicazioni ai problemi della misurazione
2013
ESPOSIZIONE A FUMO DI SIGARETTE NEL BAMBINO E RISCHIO DI ALLERGIA: COSA SAPPIAMO?
2011
Il coverage dei naufragi dei migranti e delle catastrofi. Newsmedia e attori istituzionali nei casi eccezionali
2014
L'articolo analizza i circuiti comunicativi che si attivano nel caso di catastrofi naturali o eventi drammatici e imprevedibili come i naufragi dei migranti nel Mediterraneo, rilevandone le anomalie nei processi di newsmaking.
Lessico- Community builders
2009
An extended Benthic Quality Index for assessment of lake profundal macroinvertebrates: addition of indicator taxa by multivariate ordination and weig…
2014
The chironomid Benthic Quality Index (BQI) is a widely used metric in assessments of lake status. The BQI is based on 7 indicator taxa, which like most profundal fauna, often occur sporadically in low densities. Hence, a major weakness of the index is that it cannot be calculated when indicator taxa are not captured. Thus, an extension of the BQI that incorporates more macroinvertebrate taxa is desirable. We used 2 statistical approaches (Detrended Correspondence Analysis and Weighted Averaging) to estimate new benthic quality indicator scores for profundal macroinvertebrate taxa and to construct modified BQIs called Profundal Invertebrate Community Metrics (PICMs). We calibrated the PICMs …
Kotkan kaupungin ilmanlaadun bioindikaattoriseuranta vuonna 2002
2003
Kääpien käyttökelpoisuus orvakkalajiston indikaattoreina erilaisissa metsäelinympäristöissä
2008
Testate amoebae as a potential tracer of organic matter dislodged from peat extraction areas
2020
In the boreal zone, surface waters mostly receive external organic matter (OM) from surrounding peatlands. The lake’s biological communities may respond to changes in OM inputs caused by anthropogenic activities in the catchment. Testate amoebae (TA) possess an outer shell that preserves well in lake sediments and are commonly used in paleo-environmental studies. Additionally, they fall into the size range of particles transported from peatlands to lakes, making them potential particle tracers. Here, we compared TA communities of current and pre-peat extraction sediments from lakes receiving OM only from peat extraction areas (impact lakes) with lakes receiving OM from peatlands under other…
Testate amoebae community analysis as a tool to assess biological impacts of peatland use
2018
As most ecosystems, peatlands have been heavily exploited for different human purposes. For example, in Finland the majority is under forestry, agriculture or peat mining use. Peatlands play an important role in carbon storage, water cycle, and are a unique habitat for rare organisms. Such properties highlight their environmental importance and the need for their restoration. To monitor the success of peatland restoration sensitive indicators are needed. Here we test whether testate amoebae can be used as a reliable bioindicator for assessing peatland condition. To qualify as reliable indicators, responses in testate amoebae community structure to ecological changes must be stronger than ra…