Sea Changes

MARINE ECOSYSTEM CHANGES: Such as the stunning recent changes in Razorbills

16.1.10

East of Chatham MA

Sunday Sept 8th 2013 about 20 miles east of Chatham MA...

Wayne Petersen scanning the waters for seabirds. Stellwagen Bank has had fewer numbers of seabirds this summer than usual, but the waters off Chatham MA have had more than usual.

Posted by Tom at 00:50

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RARGOM 2014 conference

This RARGOM 2014 conference was on September 30, 2014 at Boston University. This material (the top 13 slides on the left, and the website OceansChanging.blogspot.com) was included with many other presentations and posters at that marine science conference.

Related Sites

Oceans Changing

This is the paper which this poster refers to

RARGOM 2013 conference

This material was discussed at the RARGOM 2013 conference on October 8, 2013 and that conference is well summarized by Andy Pershing at this site

RARGOM confirms 2012 was weird - Seascape Projects

Razorbill (Alca torda)

An unusual and beautiful bird!

Are these changes the "new normal"?

Are Razorbill changes in the last few years a natural cyclical recurring fluctuation which we have seen in past decades? Or do they represent a more fundamental break with the past? Will Razorbills bounce-back to their normal pre-2011 winter distribution patterns? What will Razorbills and other alcids do this winter 2013??

Looking at the data

We look for multiple decades of Razorbill data, especially in the Audubon CBCs Christmas Bird Counts along the east coast of the USA in late December. We want to see how Razorbill numbers have varied over the last 50-100 years, at key locations along the coast. Already we have found several CBC counts which have shown striking jumps in recent years... in 2011 down to North Carolina and in 2012 down to Florida and beyond.

Ignore Archive Dates

Ignore dates in the Blog Archive below. The dates are meaningless and used only to sequence the "pages" (posts) on the left.

Blog Archive

► 2012 (14)
- ► January (14)

► 2011 (20)
- ► February (1)
- ► January (19)

▼ 2010 (2)
- ► June (1)
- ▼ January (1)
  - East of Chatham MA

► 2009 (3)
- ► September (1)
- ► June (1)
- ► May (1)

Sea Changes

16.1.10

East of Chatham MA

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