[NatureNS] Is there a link between rare birds and mercury poisoning?

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From: Mike & Jo <mccallmichael5@gmail.com>
Date: Fri, 13 May 2016 13:24:24 -0300
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Chris:

A discuter. Or not.

MMc


> On May 13, 2016, at 11:52 AM, John Kearney =
<john.kearney@ns.sympatico.ca> wrote:
>=20
> 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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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">Chris:<div class=3D""><br class=3D""></div><div class=3D"">A =
discuter. Or not.</div><div class=3D""><br class=3D""></div><div =
class=3D"">MMc</div><div class=3D""><br class=3D""></div><div =
class=3D""><br class=3D""><div><blockquote type=3D"cite" class=3D""><div =
class=3D"">On May 13, 2016, at 11:52 AM, John Kearney &lt;<a =
href=3D"mailto:john.kearney@ns.sympatico.ca" =
class=3D"">john.kearney@ns.sympatico.ca</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div =
class=3D"WordSection1" style=3D"page: WordSection1; font-family: =
Helvetica; font-size: 18px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: 'Comic =
Sans MS';" class=3D""><span style=3D"font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D"">Hi all,<o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0cm 0cm 0.0001pt; =
font-size: 10pt; font-family: 'Comic Sans MS';" class=3D""><span =
style=3D"font-size: 11pt; font-family: Calibri, sans-serif;" class=3D"">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 =
class=3D""></o:p></span></div><div style=3D"margin: 0cm 0cm 0.0001pt; =
font-size: 10pt; font-family: 'Comic Sans MS';" class=3D""><span =
style=3D"font-size: 11pt; font-family: Calibri, sans-serif;" class=3D"">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 class=3D""></o:p></span></div><div style=3D"margin: =
0cm 0cm 0.0001pt; font-size: 10pt; font-family: 'Comic Sans MS';" =
class=3D""><span style=3D"font-size: 11pt; font-family: Calibri, =
sans-serif;" class=3D"">John<o:p class=3D""></o:p></span></div><div =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: 'Comic =
Sans MS';" class=3D""><span style=3D"font-size: 9pt; font-family: =
MinionPro-Regular, serif;" class=3D"">Seewagen, C. L.<span =
class=3D"Apple-converted-space">&nbsp;</span></span><i class=3D""><span =
style=3D"font-size: 9pt; font-family: MinionPro-It, serif;" class=3D"">et =
al.<span class=3D"Apple-converted-space">&nbsp;</span></span></i><span =
style=3D"font-size: 9pt; font-family: MinionPro-Regular, serif;" =
class=3D"">Mobilization of mercury from lean tissues during =
simulated<o:p class=3D""></o:p></span></div><div style=3D"margin: 0cm =
0cm 0.0001pt; font-size: 10pt; font-family: 'Comic Sans MS';" =
class=3D""><span style=3D"font-size: 9pt; font-family: =
MinionPro-Regular, serif;" class=3D"">migratory fasting in a model =
songbird.<span class=3D"Apple-converted-space">&nbsp;</span></span><i =
class=3D""><span style=3D"font-size: 9pt; font-family: MinionPro-It, =
serif;" class=3D"">Sci. Rep.<span =
class=3D"Apple-converted-space">&nbsp;</span></span></i><b =
class=3D""><span style=3D"font-size: 9pt; font-family: MinionPro-Bold, =
serif;" class=3D"">6</span></b><span style=3D"font-size: 9pt; =
font-family: MinionPro-Regular, serif;" class=3D"">, 25762; doi: =
10.1038/srep25762 (2016).</span></div></div></div></blockquote></div><br =
class=3D""></div></body></html>=

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