sh.sePublications
Change search
ReferencesLink to record
Permanent link

Direct link
Modelling the propagation of effects of chronic exposure to ionising radiation from individuals to populations
Södertörn University, School of Life Sciences.ORCID iD: 0000-0001-8536-373X
Show others and affiliations
2008 (English)In: Journal of Environmental Radioactivity, ISSN 0265-931X, E-ISSN 1879-1700, Vol. 99, no 9, 1464-1473 p.Article in journal (Refereed) Published
Abstract [en]

This study evaluated the potential effect of ionising radiation on population growth using simple population models and parameter values derived from chronic exposure experiments in two invertebrate species with contrasting life-history strategies. In the earthworm Eisenia fetida, models predicted increasing delay in population growth with increasing gamma dose rate (up to 0.6 generation times at 11 mGy h(-1)). Population extinction was predicted at 43 mGy h(-1). In the microcrustacean Daphnia magna, models predicted increasing delay in population growth with increasing alpha dose rate (up to 0.8 generation times at 15.0 mGy h(-1)), only after two successive generations were exposed. The study examined population effects of changes in different individual endpoints (including survival, number of offspring produced and time to first reproduction). Models showed that the two species did not respond equally to equivalent levels of change, the fast growing daphnids being more susceptible to reduction in fecundity or delay in reproduction than the slow growing earthworms. This suggested that susceptibility of a population to ionising radiation cannot be considered independent of the species' life history.

Place, publisher, year, edition, pages
2008. Vol. 99, no 9, 1464-1473 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:sh:diva-5728DOI: 10.1016/j.jenvrad.2007.11.021ISI: 000259051200011PubMedID: 18314232ScopusID: 2-s2.0-48349083751OAI: oai:DiVA.org:sh-5728DiVA: diva2:392635
Available from: 2011-01-27 Created: 2011-01-27 Last updated: 2016-10-04Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMedScopus

Search in DiVA

By author/editor
Gilek, Michael
By organisation
School of Life Sciences
In the same journal
Journal of Environmental Radioactivity
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 60 hits
ReferencesLink to record
Permanent link

Direct link