Local to continental influences on nutrient and contaminant sources to river birds

Environmental Science & Technology
Christy A MorrisseyStephen J Ormerod

Abstract

Stable isotope and contaminant analyses revealed differences in nutrient sources and contaminant pathways in two species of dipper, Cinclus mexicanus and Cinclus cinclus in western Canada and western Britain. We collected dipper prey and eggs from relatively pristine British Columbian rivers contrasting in the presence of salmon-derived nutrients, and rural Welsh rivers with varying food-web complexity associated with stream acidity. Enriched delta(13)C and to a lesser extent delta(15)N in American dipper eggs and prey confirmed that streams with migrating Pacific salmon were enriched with marine-derived nutrients, but overall contaminant concentrations did not differ strongly in dipper eggs between rivers with and without salmon. However dipper contaminant profiles, particularly PBDEs, mercury and SigmaDDTs, were related to delta(13)C, reflecting the marine influence and greater fish consumption at salmon sites. Irrespective of catchment influences and despite feeding at a higher trophic level, American dipper eggs (n = 17) contained lower levels of organohalogens than Eurasian dippers (n = 37), but with similar PCB (153 and 138) and PBDE (47 and 99) congeners dominanating. Eurasian dipper eggs from circumneutral streams conta...Continue Reading

References

Sep 30, 1993·The Science of the Total Environment·C F Mason, S M Macdonald
May 12, 2001·Environmental Science & Technology·O I KalantziK C Jones
Nov 6, 2001·Environmental Monitoring and Assessment·A M ScheuhammerD E Bond
Jan 10, 2003·Archives of Environmental Contamination and Toxicology·G H Heinz, D J Hoffman
Jul 10, 2003·Environment International·Robert C HaleMichael G Ikonomou
Sep 19, 2003·Nature·E M KrümmelJ M Blais
Aug 30, 2005·Environmental Science & Technology·John E ElliottBryan Wakeford
Oct 6, 2005·Environmental Science & Technology·Jennie R ChristensenPeter S Ross
Jan 30, 2007·Environmental Science & Technology·Timothy D JardineAaron T Fisk
Mar 31, 2007·The Science of the Total Environment·Knut BreivikKevin C Jones
Jun 19, 2007·Environmental Toxicology and Chemistry·Irene Gregory-EavesJules M Blais
Apr 19, 2008·Archives of Environmental Contamination and Toxicology·Gary H HeinzCarol A Erwin
Sep 29, 2009·Environmental Pollution·Christy A MorrisseyStephen J Ormerod
Apr 1, 2001·Oecologia·Donald L Phillips, Jillian W Gregg

❮ Previous
Next ❯

Citations

Dec 8, 2011·Environmental Science & Technology·Christy A MorrisseyJohn E Elliott
Jul 4, 2013·Environmental Science & Technology·Christy A MorrisseySteve J Ormerod
May 23, 2020·Global Change Biology·Joseph M D'SouzaStephen J Ormerod
Feb 24, 2011·Environmental Science & Technology·Mark B YunkerCory Dubetz

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.