Search results for "ANTHROPOGENIC"
showing 5 items of 105 documents
Can learning from the past help to predict the future in the environmental impact assessment on reindeer husbandry?
2014
Atmospheric Deposition around the Industrial Areas of Milazzo and Priolo Gargallo (Sicily–Italy)—Part A: Major Ions
2023
The chemical composition of rainwater was studied in two highly-industrialised areas in Sicily (southern Italy), between June 2018 and July 2019. The study areas were characterised by large oil refining plants and other industrial hubs whose processes contribute to the release of large amounts of gaseous species that can affect the chemical composition of atmospheric deposition As in most of the Mediterranean area, rainwater acidity (ranging in the study area between 3.9 and 8.3) was buffered by the dissolution of abundant geogenic carbonate aerosol. In particular, calcium and magnesium cations showed the highest pH-neutralizing factor, with ~92% of the acidity brought by SO42− and NO…
Concentrations of metallothionein in the bivalve molluscsAnodonta spp.andUnio spp.from Latvian lakes with different anthropogenic pressure
2013
Concentrations of metallothioneins (MT) were analysed in bivalve molluscs Anodonta spp. and Unio spp. from 6 lakes and watercourses of Latvia with different anthropogenic pressure. The aim of the study was to find the relationship between MT in molluscs and concentrations of heavy metals in sediments. Unio spp. and Anodonta spp. showed no significant differences in the concentrations of MT. High concentrations of heavy metals (Cd, Pb, Hg, Cu, Zn) were detected in the deepest parts of polluted water bodies, however their concentrations significantly decreased in near shore sediments inhabited by molluscs. Only Zn tends to accumulate in the molluscs, reaching 2-7 times higher concentrations i…
Antropogeeninen ympäristönmuutos ja luonnonvaraisten eläinten urbanisoituminen
2012
Ihmisväestön kasvu valtaa jatkuvasti lisää pinta-alaa luonnontilaisilta alueilta. Ympäristön muuttuminen urbaanimmaksi vähentää luonnonvaraisten eläinten elintilaa merkittävästi, ja eläinten yhdeksi vaihtoehdoksi tarjoutuu uusien elinalueiden etsiminen urbaanista ympäristöstä. Osa eläimistä kykeneekin sopeutumaan urbaaneihin ekosysteemeihin. Urbaanissa elinympäristössä, kuten luonnossakin, on toisinaan tyhjiä ekolokeroita ja näiden ekolokeroiden täyttäminen sekä urbaanien alueiden kolonisoiminen on erityisesti pienille ja runsaslukuisille linnuille ja nisäkkäille mahdollista. Kaupunkiekosysteemit rajoittavat migraatiota eniten ravinnon ja sopivan elintilan suhteen ja siksi on melko tavanoma…
The “genetic erosion” of the soil ecosystem
2013
Abstract This paper takes into consideration the influence of human activities on the loss of pedodiversity in a Mediterranean area due to large scale farming. In particular it examines the quantitative and qualitative soil changes in a period of 53 years (from 1955 to 2008) evaluating the loss of soil diversity at soil subgroups level of the USDA Soil Taxonomy system. The following indices were used: richness; Shannon’s diversity index; Simpson diversity index; Shannon’s evenness index; Simpson’s evenness index. In this case study, considering what we observed in time, the human intervention in soil transformation could increase the diversity in the landscape in an initial phase, but forwa…