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Untersuchungen zur Eignung wildlebender Wanderratten (Rattus norvegicus) als Indikatoren der Schwermetallbelastung

Published in Umweltwissenschaften und Schadstoff-Forschung

Durch die Quantifizierung von 12 chemischen Elementen im Organsystem von wildlebenden Ratten (Rattus norvegicus) aus dem Tierpark Zittau (Sachsen) sollte die Eignung dieser spezies als passiver Bioindikator untersucht werden. Neben der Ermittlung von sogenannten Hintergrund-konzentrationen standen insbesondere Fragen zur geschlechts-und altersspezi...

Diversity and abundance of vascular epiphytes: a comparison of secondary vegetation and primary montane rain forest in t...

Published in Plant Ecology

Species diversity of vascular epiphyte plant communities was studied in La Carbonera, a montane rain forest dominated by Podocarpaceae in the Venezuelan Andes. We compared the epiphyte communities of the primary, disturbed, and secondary forest areas of La Carbonera in order to augment the scarce knowledge on the effects of anthropogenic disturbanc...

Role of Environmental Factors on the Reproducibility of Lemna Test

Published in Acta Biologica Hungarica

Lemna minor is a species easy to collect and culture in laboratory, and can give rapid test results. However, in order to standardise toxicity tests using Lemna minor as test organism, it is important to find out what natural variability different populations might have. Five Lemna populations were used for comparison. It contained two standard cul...

Use of bryological communities as a diagnostic tool of heavy metal soil contamination (Cd, Pb, Zn) in northern France

Published in Plant Ecology

Correlations between terricolous bryophyte flora and edaphic parameters (pH, organic nitrogen (ON), C/N, Cation Exchange Capacity (CEC), Organic Matter (OM) and Pb, Cd and Zn soil contents) of metalliferous wastes in northern France were performed using statistical analysis (FCA, PCA and FCMA). The significant correlation between the classification...

Algunas consideraciones teóricas en torno a la fauna como indicadora de espacios agrarios en la Prehistoria

La calidad bioindicadora de un taxón viene determinada por el grado de asociación con determinadas variables ambientales y no por otras circunstancias tales como su abundancia o tamaño. Desde esta perspectiva y desde el punto de vista del análisis del espacio agrario como un ecosistema de creciente importancia en la biosfera, el presente estudio an...