Navigation Links
Birds reduce their heating bills in cold climates
Date:6/23/2010

>Although it's possible that large bills have evolved to help shed heat loads and prevent overheating in hot climates, we think it's more likely that cold temperatures impose a constraint on the size of bird beaks," Dr Tattersall says.

"It simply might be too much of a liability to carry around a big radiator of heat energy in a cold environment."

The research validates a 133-year-old ecological theory called Allen's rule, which predicts that animal appendages like limbs, ears, and tails are smaller in cold climates in order to minimize heat loss.

Dr Symonds says Allen's rule has never been tested with this large a group of animals and was more anecdotal.

"This is the first rigorous study of its kind to test this theory and to show that bird bills have evolved in this manner."


'/>"/>

Contact: Rebecca Scott
rebeccas@unimelb.edu.au
61-383-440-181
University of Melbourne
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Savanna habitat drives birds, and perhaps others, to cooperative breeding
2. Uncertainty drives the evolution of cooperative breeding in birds
3. A dog in the hand scares birds in the bush
4. City birds better than rural species in coping with human disruption
5. Do migratory birds see the magnetic field?
6. LSU professor studies army-ant-following birds
7. Time-sharing tropical birds key to evolutionary mystery
8. Lavishly illustrated guide to Perus birds describes 1,800 species
9. Threatened birds may be rarer than geographic range maps suggest
10. Siberian jays can communicate about behavior of birds of prey
11. High degree of resistance to antibiotics in Arctic birds
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Birds reduce their heating bills in cold climates
(Date:7/25/2014)... A study published online in the International ... novel approach to preventing cervical cancer based on findings ... after removal of a discrete population of cells in ... study that looked at squamocolumnar junction cells, or SCJ ... have been implicated as the origins of cervical cancer. ...
(Date:7/25/2014)... of Adelaide has opened the way for the development of ... In Australia, annual barley production is second only to wheat ... of the most important diseases of barley. , Senior Research ... of special growths on the cell walls of barley plants ... , The research, by the ARC Centre of Excellence in ...
(Date:7/25/2014)... that the age girls reach puberty is influenced by ,imprinted ... parent contributes the gene. This is the first evidence ... birth and details of this study were published today in ... period, known as menarche, is a marker for the timing ... onset of menses varies between girls, is an inherited trait, ...
Breaking Biology News(10 mins):Clearing cells to prevent cervical cancer 2New hope for powdery mildew resistant barley 2Could age of first period influence development of diseases in older women? 2
... reveals critical molecular events in the origin of fat ... such as obesity and diabetes, as fat cells produce ... The study finds that a hormonal cocktail routinely used ... the transition from fat-cell precursors to full-blown fat, researchers ...
... study reveals critical molecular events in the origin of ... diseases, such as obesity and diabetes, as fat cells ... , The study finds that a hormonal cocktail routinely ... in the transition from fat-cell precursors to full-blown fat, ...
... how a common fish found along the West Coast can ... The study marks the first time that scientists have found ... vertebrate's brain that controls the vocal muscle system and the ... that understanding the auditory system of the plainfin midshipman fish ...
Cached Biology News:Key To Stem Cell Transplant Success Is Tricking Immune System 2Short-term Bio Sensors Monitor From Afar 2How fish hear and make sounds at same time 2
(Date:7/24/2014)... Research and Markets has announced the addition ... report to their offering.  http://photos.prnewswire.com/prnh/20130307/600769 ... vitro growth of plant or animal cells for several ... Cell culture is a crucial step in tissue engineering ... consumables are necessary for the in vitro production of ...
(Date:7/24/2014)... , July 24, 2014  CorMedix Inc. (NYSE ... and commercializing therapeutic products for the prevention and ... receipt of notice on July 18, 2014 from ... has accepted the CorMedix plan to regain compliance ... a result, the NYSE-MKT is continuing the Company,s ...
(Date:7/24/2014)... July 24, 2014 WIRB-Copernicus Group ® ... and ethical review services for clinical research, announced ... a division of Richmond, VA ... biosafety and biosecurity consulting firm in ... WCG,s biosafety division – WCG Biosafety™ – will ...
(Date:7/24/2014)... -- Spherix Incorporated (SPEX) -- an intellectual property development company ... today announced that the Company will issue a business ... Monday, August 18, 2014 for shareholders. Management has scheduled ... August 18, 2014 to discuss the company,s progress to ... Anthony Hayes . Following prepared remarks, management ...
Breaking Biology Technology:Global Cell Culture Market 2014-2018: Key Vendors are Becton, Dickinson and Co, EMD, GE Healthcare, Lonza Group, Sigma Aldrich and Thermo Fisher Scientific 2CorMedix, Inc. Granted Extension of NYSE-MKT Listing 2CorMedix, Inc. Granted Extension of NYSE-MKT Listing 3WIRB-Copernicus Group Announces Acquisition of Alliance Biosciences; Executives Join WCG Biosafety Division 2WIRB-Copernicus Group Announces Acquisition of Alliance Biosciences; Executives Join WCG Biosafety Division 3Spherix Schedules Shareholder Update Call 2
... Yang, Associate Professor of Mechanical Engineering and Director of ... Technology, The Innovation University (TM), will receive funding from ... a Nanoimprint Lithography System (NIL) for the purpose of ... Stevens. The Co-PIs of the project are Drs. Besser, ...
... Cumberland Pharmaceuticals Inc. (Nasdaq: CPIX) ... the safety and efficacy of Caldolor® ( ibuprofen ) ... ill adults. Published in the peer-reviewed journal Critical ... significantly more effective at reducing fever in hospitalized patients ...
... Castle Access, Inc. announces the appointment of ... the Castle Access organization with that of its ... provider, and gives clients in Southwestern US and ... data center and mission-critical managed services. ...
Cached Biology Technology:Nanoimprint lithography NSF grant awarded to micro device lab at Stevens 2Nanoimprint lithography NSF grant awarded to micro device lab at Stevens 3Newly Published Caldolor® Clinical Data Demonstrates 77% Reduction in Fever in Hospitalized Patients 2Newly Published Caldolor® Clinical Data Demonstrates 77% Reduction in Fever in Hospitalized Patients 3Newly Published Caldolor® Clinical Data Demonstrates 77% Reduction in Fever in Hospitalized Patients 4Castle Access Names New Managing Director 2Castle Access Names New Managing Director 3
Request Info...
1+ mg expected yield of purified protein, expressed in insect cells - excludes cDNA...
... bioinformatics software that has changed the way ... design of BioNumerics allows for integration and ... data employed for the characterization of organisms ... protein gels, HPLC, VNTR, MLST, SNP, fatty ...
Request Info...
Biology Products: