Agelenids of the World

Systematics and Taxonomy of Agelenidae, a Worldwide distributed Spider Family

Body burdens of metals in spiders from the Lidice coal dump near Ostrava (Czech Republic)

Publication Type:Journal Article
Year of Publication:2005
Authors:G. Wilczek, Babczynska, A., Majkus, Z.
Journal:Biologia (Bratislava)
Date Published:2005
ISBN Number:0006-3088
Keywords:/ Content] [Metals / Heavy metals / ] [Czech Republic / Ostrava, Lidice, / taxonomy & web type relations]., Abiotic factors, Animal, Araneae (Arachnida)., Araneae [Pollutants / Heavy metal content / foraging strategies, Biochemistry, Chemical factors, Chemical pollution, constructions, Ecology, Eurasia, Europe, Feeding behaviour, Habitat, habitat / Coal dump habitat / ] [Metal pollution / Heavy metal pollution, Land zones, Nutrition, Palaearctic region, Pollution, relations] [Foraging / Hunting strategies / ] [Webs / / Type] [Man made, Systematics, taxonomic position & web type relations] [Diet / / Heavy metal content

Spiders' feeding behaviour and external digestion expose them to man-made pollutants, especially those easily transferred along the food chain. The problem for this study was whether the levels of heavy metals in selected species of spiders from the Lidice coal dump reflect adaptation to environmental pollutants. We used flameless and flame AAS to measure the whole-body concentrations of Cd, Pb, Cu, Zn, Fe, Ni and Mg in male and female spiders differing in their hunting strategies, type of web construction, prey, and taxonomic position (Araneidae, Agelenidae, Linyphiidae, Theridiidae, Tetragnathidae, Lycosidae, Salticidae, Pisauridae, Clubionidae, Philodromidae). The levels of metals found in the spiders were species-dependent, indicating differences related to the hunting strategy and type of prey. Accumulation of Pb, Cu and Zn was always higher in ground spiders than in web-constructing species. Sheet-web spiders Linyphia triangularis and wandering spiders Clubiona lutescens had the lowest Cd, Mg and Cu content of all the studied species. Web-building spiders of the Tetragnathidae family showed the highest Cd, Cu and Pb content, even in species with feeding behaviour similar to spiders of other families. There were no interspecific differences in accumulation only for Fe and Mg. The concentrations of Cd, Ni and Pb were lower in females than in males, irrespective of their taxonomic position and the intensity of their hunting activity. This may suggest that females have better metal-excretion ability than males.

URL:<Go to ISI>://ZOOREC:ZOOR14205026618
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith