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001-es BibID:	BIBFORM031043
Első szerző:	Simon Edina (ökológus)
Cím:	Frogs and toads as biological indicators in environmental assessment / Edina Simon, Miklós Puky, Mihály Braun, Béla Tóthmérész
Dátum:	2011
ISSN:	978-1-61324-667-2
Megjegyzések:	Frogs and toads are increasingly used as bioindicator organisms in pollution studies in the past decades. However, a majority of frogs and toads species are endangered and protected in most European countries, which makes their study with traditional methods requiring a large amount of tissue samples difficult. We are reporting the development and application of a new analytical technique based on small amount of toe bones to study their elemental contents. Using this method it is not necessary to kill the animals, while the effects of anthropogenic activity on amphibians may well be studied. The first aim of our study was to develop a method using the elemental contents of frog bones that provides good estimates. For this purpose Rana esculenta L. individuals were collected from an urban pond in Debrecen (Hungary). Using the developed method our follow up aim was to study the effects of urbanization on the elemental contents of toe bones. Bufo bufo individuals were collected also from the urban pond in Debrecen and two rural ponds (Garancsi Pond and Lake Naplás). In the case of Rana esculenta L. individuals P, Ca, Mg, Mn, Na, S and Zn were measured in the skull, spinal, femur, tibia-fibula, tarsal bones, metatarsus, humerus and digits from the front and hind limbs. The elemental contents of toe bones were measured and also estimated from concentrations found in large bones. The measured and estimated elemental contents of toe bones did not differ significantly based on estimations from the element content of the following large bones: tibia-fibula, metatarsal
Tárgyszavak:	Természettudományok Környezettudományok könyvfejezet
Megjelenés:	Frogs: Biology, Ecology and Uses / ed. James L. Murray. - p. 141-150. -
További szerzők:	Puky Miklós (1961-2015) (biológus, herpetológus) Braun Mihály (1966-) (vegyész, analitikus) Tóthmérész Béla (1960-) (ökológus)
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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