Please use this identifier to cite or link to this item:
DC FieldValueLanguage
dc.contributor.authorPardal, M. A.-
dc.contributor.authorCardoso, P. G.-
dc.contributor.authorSousa, J. P.-
dc.contributor.authorMarques, J. C.-
dc.contributor.authorRaffaelli, D.-
dc.identifier.citationMarine Ecology Progress Series. 267 (2000) 1-8en_US
dc.description.abstractA new approach to assess environmental integrity based on PRC analysis was proposed, tested, validated and developed. Environmental health assessment and community studies usually result in complex biological data sets. In order to find ecologically relevant patterns and tendencies from such sets of data it is necessary to reduce all the information to a summarised and simplified form, which might be more easily interpreted by ecologists, politicians, end-users and the population in general. However, several multivariate ordination methods currently used (e.g. redundancy analysis, principal component analysis, or multi-dimensional scaling) produce complex diagrams for the non-ecologist, which do not allow changes in biological communities over time to be easily understood. Here, we propose a recently developed method, principal response curves (PRC) analysis, to overcome these issues. This method has advantages over traditional ordination techniques, or any biotic index, in that it provides a powerful statistical analysis of temporal data series along spatial gradients. The PRC technique can make use of non-disturbed or unpolluted areas as reference sites with which other areas are compared, making it possible to assess changes in species composition between different areas over time. Moreover, individual species responses to stress agents can be inferred from the PRC curves. As well as providing insights into the behaviour of natural ecosystems‹in particular, how ecosystem integrity changes over time‹this new approach can potentially provide a practical tool for monitoring and implementing environmental policy instrumentsen_US
dc.subjectEnvironmental integrityen_US
dc.subjectEnvironmental healthen_US
dc.subjectPRC analysisen_US
dc.subjectCommunity studiesen_US
dc.titleAssessing environmental quality: a novel approachen_US
degois.publication.titleMarine Ecology Progress Seriesen_US
item.fulltextCom Texto completo-
item.grantfulltextopen- de Ciências e Tecnologia, Universidade de Coimbra- de Ciências e Tecnologia, Universidade de Coimbra- de Coimbra- de Coimbra- for Functional Ecology- - Marine and Environmental Sciences Centre- - Marine and Environmental Sciences Centre-
Appears in Collections:FCTUC Ciências da Vida - Artigos em Revistas Internacionais
Files in This Item:
File Description SizeFormat
Assessing environmental quality: a novel approach.pdf451.29 kBAdobe PDFView/Open
Show simple item record

Page view(s)

checked on Aug 6, 2020


checked on Aug 6, 2020

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.