PMID- 27409713
OWN - NLM
STAT- MEDLINE
DCOM- 20170608
LR  - 20180524
IS  - 1520-5851 (Electronic)
IS  - 0013-936X (Linking)
VI  - 50
IP  - 17
DP  - 2016 Sep 6
TI  - Sterols and Stanols Preserved in Pond Sediments Track Seabird Biovectors in a 
      High Arctic Environment.
PG  - 9351-60
LID - 10.1021/acs.est.6b02767 [doi]
AB  - Seabirds are major vertebrates in the coastal ecosystems of the Canadian High 
      Arctic, where they transport substantial amounts of marine-derived nutrients and 
      pollutants from oceans to land by depositing guano and stomach oils to their 
      nesting area, which often includes nearby freshwater ponds. Here we present novel 
      indicators for evaluating the impact of seabirds on freshwater ecosystems. The 
      ratio of cholesterol/(cholesterol + sitosterol) in pond sediments showed 
      significant enrichment near a nesting colony of northern fulmars (Fulmarus 
      glacialis) and was significantly correlated with ornithogenic enrichment of 
      sediment as determined by sedimentary delta(15)N. The sterol ratio was also 
      correlated with several bioaccumulative persistent organic pollutants (POPs), 
      suggesting its usefulness in tracking biovector enrichment of contaminants. 
      Human-derived epicoprostanol was also analyzed in the sediments, and its 
      relationship with an abandoned, prehistoric camp was recorded, suggesting its 
      potential as a tracer of prehistoric human activities in the Arctic. Sterols and 
      stanols preserved in sediments appear to be useful geochemical tools that will 
      inform our understanding of migratory species and the presence of prehistoric 
      human populations in the Arctic, and possibly other animal populations.
FAU - Cheng, Wenhan
AU  - Cheng W
AD  - Department of Biology, University of Ottawa , Ottawa, Ontario K1N 6N5, Canada.
FAU - Sun, Liguang
AU  - Sun L
AD  - Institute of Polar Environment, School of Earth and Space Sciences, University of 
      Science and Technology of China , Hefei, Anhui 230026, China.
FAU - Kimpe, Linda E
AU  - Kimpe LE
AD  - Department of Biology, University of Ottawa , Ottawa, Ontario K1N 6N5, Canada.
FAU - Mallory, Mark L
AU  - Mallory ML
AD  - Department of Biology, Acadia University , Wolfville, Nova Scotia B4P 2R6, 
      Canada.
FAU - Smol, John P
AU  - Smol JP
AD  - Paleoecological Environmental Assessment and Research Lab (PEARL), Department of 
      Biology, Queen's University , Kingston, Ontario K7L 3N6, Canada.
FAU - Gallant, Lauren R
AU  - Gallant LR
AD  - Department of Biology, University of Ottawa , Ottawa, Ontario K1N 6N5, Canada.
FAU - Li, Jinping
AU  - Li J
AD  - Key Laboratory of Environment and Resources on Tibetan Plateau, Qinghai Normal 
      University , Xining 810008, China.
FAU - Blais, Jules M
AU  - Blais JM
AD  - Department of Biology, University of Ottawa , Ottawa, Ontario K1N 6N5, Canada.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20160808
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Sterols)
SB  - IM
MH  - Animals
MH  - Arctic Regions
MH  - Birds
MH  - Canada
MH  - Ecosystem
MH  - Environmental Monitoring
MH  - Fresh Water
MH  - *Ponds
MH  - *Sterols
EDAT- 2016/07/14 06:00
MHDA- 2017/06/09 06:00
CRDT- 2016/07/14 06:00
PHST- 2016/07/14 06:00 [entrez]
PHST- 2016/07/14 06:00 [pubmed]
PHST- 2017/06/09 06:00 [medline]
AID - 10.1021/acs.est.6b02767 [doi]
PST - ppublish
SO  - Environ Sci Technol. 2016 Sep 6;50(17):9351-60. doi: 10.1021/acs.est.6b02767. 
      Epub 2016 Aug 8.