Linked Life Data

18559853

Source:http://linkedlifedata.com/resource/pubmed/id/18559853

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
24
pubmed:dateCreated
2008-6-19
pubmed:abstractText
We used a phylogenetically based comparative approach to evaluate the potential for physiological studies to reveal patterns of diversity in traits related to susceptibility to an environmental stressor, the trace metal cadmium (Cd). Physiological traits related to Cd bioaccumulation, compartmentalization, and ultimately susceptibility were measured in 21 aquatic insect species representing the orders Ephemeroptera, Plecoptera, and Trichoptera. We mapped these experimentally derived physiological traits onto a phylogeny and quantified the tendency for related species to be similar (phylogenetic signal). All traits related to Cd bioaccumulation and susceptibility exhibited statistically significant phylogenetic signal, although the signal strength varied among traits. Conventional and phylogenetically based regression models were compared, revealing great variability within orders but consistent, strong differences among insect families. Uptake and elimination rate constants were positively correlated among species, but only when effects of body size and phylogeny were incorporated in the analysis. Together, uptake and elimination rates predicted dramatic Cd bioaccumulation differences among species that agreed with field-based measurements. We discovered a potential tradeoff between the ability to eliminate Cd and the ability to detoxify it across species, particularly mayflies. The best-fit regression models were driven by phylogenetic parameters (especially differences among families) rather than functional traits, suggesting that it may eventually be possible to predict a taxon's physiological performance based on its phylogenetic position, provided adequate physiological information is available for close relatives. There appears to be great potential for evolutionary physiological approaches to augment our understanding of insect responses to environmental stressors in nature.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-12013125, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-12069296, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-12442773, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-15376532, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-15506192, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-15707049, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-15871220, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-16081601, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-16629143, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-16986784, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-17479751, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-17695935, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-17993165, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-18707460, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-3285219, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-4836017, http://linkedlifedata.com/resource/pubmed/commentcorrection/18559853-8010752
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1091-6490
pubmed:author
pubmed:issnType
Electronic
pubmed:day
17
pubmed:volume
105
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
8321-6
pubmed:dateRevised
2010-9-22
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Aquatic insect ecophysiological traits reveal phylogenetically based differences in dissolved cadmium susceptibility.
pubmed:affiliation
Department of Environmental and Molecular Toxicology, Campus Box 7633, North Carolina State University, Raleigh, NC 27604, USA. david_buchwalter@ncsu.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't