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Climate change does not bode well for picky eaters

To: Laurie Knight <>
Subject: Climate change does not bode well for picky eaters
From: Ian May <>
Date: Fri, 23 Jan 2015 09:10:29 +1100
H

Hello Laurie

Not wanting to upset "the believers", I cannot help but wonder if these researchers ever considered that a decline of Antarctic Krill could be caused by the exponential increase of Cetaceans that has occurred over the past two decades. Is it true that a current population estimate of just one species, the humpback whale has now reached 80,000 individuals? About five years ago, the population estimate at that time had increased to 35,000 animals? See http://en.wikipedia.org/wiki/List_of_cetaceans#Global_Population_Estimates or http://whaleone.com.au/whale-facts/

As a part time researcher from a time nearing the end of the commercial whaling era when it was rare to sight a large whale in Australian waters, I occasionally pondered the effects on the pelagic world from competition on the basic marine food source impacted by the presence or absence of Cetaceans.
My conclusion was that you cannot have your krill and eat it too.

regards


Ian May
PO Box 110
St Helens, 7216


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Laurie Knight wrote:

The following study contrasts the fortunes of Chinstrap and Gentoo Penguins

see http://www.sciencedaily.com/releases/2015/01/150120121304.htm

Original study: MJ Polito, WZ Trivelpiece, WP Patterson, NJ Karnovsky, CS 
Reiss, SD Emslie. Contrasting specialist and generalist patterns facilitate 
foraging niche partitioning in sympatric populations of Pygoscelis penguins. 
Marine Ecology Progress Series, 2015; 519: 221 DOI: 10.3354/meps11095
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