Navigation Links
Penguin: an Alternative Bio-indicator to Monitor Climate Change

We are used to hearing about the effects of climate change in terms of unusual animal behavior, such as altering patterns of fish and bird migration//. However, scientists at the University of Birmingham are trying out an alternative bio-indicator – the king penguin – to investigate whether they can be used to monitor the effects of climate change.

“If penguins are travelling further or diving deeper for food, that tells us something about the availability of particular fish in regions of the Antarctic. We may be able to assess the pressure exerted by king penguins on this ecosystem, and look at the effects of both climate change and overfishing in this region of the world”, says Dr Lewis Halsey.

A new way of using animals as bio-indicators is to ascertain their energy requirements. Dr Halsey and co-workers measured the heart rate and energy expenditure of king penguins whilst walking on a treadmill and whilst swimming in a long water channel, and obtained relationships between these two variables. They then implanted heart rate loggers in penguins going to sea such that they could infer the energy expended by these birds from the recorded heart rate.

Researchers were then able to find out if there was a correlation between the energetic costs of foraging at sea and the levels of fish available to the penguins i.e. did penguins have to work harder when food was scarce.

King penguins are good candidates as bio-indicators for several reasons. Firstly, while at sea foraging, they cover hundreds of kilometers and are able to dive to depths of several hundred meters, so they explore a relatively large portion of the expansive Southern Oceans. Secondly, the diets of several populations of king penguins are well known. Thirdly, while foraging for food is done at sea the penguins also come ashore to breed and moult, making them accessible to researchers.

Source-Eurekalert
SR/B
'"/>




Page: 1

Related medicine news :

1. Prince Charles lends support to Alternative Medicine
2. Alternative medicine more popular among HIV positive patients
3. Complementary and Alternative medicine
4. Alternative therapies popular with Parkinsons patients
5. Alternative to blood Transfusions
6. Alternative Therapy in HIV Patients
7. An Alternative to Warfarin
8. Another Alternative For Diabetics On Insulin
9. The Use Of Alternative Medicine On The Rise
10. Heart Patients Use Alternative Medicine
11. New Blood Thinner Pill - First Potential Alternative to Warfarin in 50 years
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/23/2017)... , ... June 23, 2017 , ... ... surgeon practicing in Newburgh, New York, has recently begun offering three new minimally ... offering the best cutting-edge procedures and reducing downtime, Dr. Rubinstein is excited to ...
(Date:6/23/2017)... ... June 23, 2017 , ... Goodcents Deli Fresh Subs today ... is located at 4210 SW 21st St. Topeka, Kan. 66604 (near 21st and Gage). ... Restaurant Group who owns three other locations in the Topeka and Bonner Springs, Kan. ...
(Date:6/23/2017)... ... June 23, 2017 , ... Georgia State University will ... 20. , The two-day conference is focused on advancing scientific knowledge about the ... lives and eliminating racial breast cancer-related disparities. The conference theme is “Illuminating Actionable ...
(Date:6/23/2017)... ... 23, 2017 , ... PureLife Dental is pleased to announce that California Dental ... As part of the amalgam separator endorsement, all CDA members may purchase an ECO ... the retail value. This partnership between PureLife and CDA is especially timely as it ...
(Date:6/23/2017)... San Francisco, CA (PRWEB) , ... June 23, 2017 , ... ... Conference on 26th June, 2017 from 9 am to 3 pm to present to ... curriculum. The program is an original curriculum project led by The Health Improvement ...
Breaking Medicine News(10 mins):
(Date:6/2/2017)... Mass. , June 2, 2017  NxStage Medical, ... renal care, today announced new findings demonstrating positive biochemical ... ® System One™. The data will be presented ... in Madrid, Spain . ... to Improve Home Dialysis Network in Europe ...
(Date:5/30/2017)... 2017 Hill-Rom Holdings, Inc. (NYSE: HRC), will present ... Conference on Tuesday, June 13, 2017, in Rancho ... president and chief executive officer, is scheduled to present at ... can be accessed at http://ir.hill-rom.com/events.cfm . A recorded replay ... event through September 13, 2017. ...
(Date:5/26/2017)... -- Endo International plc (NASDAQ: ENDP ) announced today ... the Company in a fireside chat at Goldman Sachs, 38 ... 2017 at 10:40 a.m. PT / 1:40 p.m. ET. The ... Rancho Palos Verdes, CA. A live ... on the Company,s website at http://www.endo.com/investors/overview . Participants should ...
Breaking Medicine Technology: