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Hi all,
A scientific paper was published this week that shows that the fasting
required during long-distance migration causes mercury contamination, stored
in the muscle of birds, to be released in concentrated form to the blood
stream. This can make the birds forgetful and disoriented. Could this mean
that we see more rare birds in recent decades because they are poisoned and
not solely because there are more birders?
An international study in the 2000s showed Nova Scotia to be a mercury
hotspot. Further studies documented the negative effects of mercury on
breeding birds like loons. This new study shows that it can also affect
their migration.
John
Seewagen, C. L. et al. Mobilization of mercury from lean tissues during
simulated
migratory fasting in a model songbird. Sci. Rep. 6, 25762; doi:
10.1038/srep25762 (2016).
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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>Hi =
all,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>A scientific =
paper was published this week that shows that the fasting required =
during long-distance migration causes mercury contamination, stored in =
the muscle of birds, to be released in concentrated form to the blood =
stream. This can make the birds forgetful and disoriented. Could this =
mean that we see more rare birds in recent decades because they are =
poisoned and not solely because there are more =
birders?<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>An =
international study in the 2000s showed Nova Scotia to be a mercury =
hotspot. Further studies documented the negative effects of mercury on =
breeding birds like loons. This new study shows that it can also affect =
their migration.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri",sans-serif'>John<o:p></o:=
p></span></p><p class=3DMsoNormal style=3D'text-autospace:none'><span =
style=3D'font-size:9.0pt;font-family:"MinionPro-Regular",serif'>Seewagen,=
C. L. </span><i><span =
style=3D'font-size:9.0pt;font-family:"MinionPro-It",serif'>et al. =
</span></i><span =
style=3D'font-size:9.0pt;font-family:"MinionPro-Regular",serif'>Mobilizat=
ion of mercury from lean tissues during =
simulated<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:9.0pt;font-family:"MinionPro-Regular",serif'>migratory=
fasting in a model songbird. </span><i><span =
style=3D'font-size:9.0pt;font-family:"MinionPro-It",serif'>Sci. Rep. =
</span></i><b><span =
style=3D'font-size:9.0pt;font-family:"MinionPro-Bold",serif'>6</span></b>=
<span style=3D'font-size:9.0pt;font-family:"MinionPro-Regular",serif'>, =
25762; doi: 10.1038/srep25762 =
(2016).</span><o:p></o:p></p></div></body></html>
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