Navigation Links
Scientists determine family tree for most-endangered bird family in the world
Date:10/20/2011

Using one of the largest DNA data sets for a group of birds and employing next-generation sequencing methods, Smithsonian scientists and collaborators have determined the evolutionary family tree for one of the most strikingly diverse and endangered bird families in the world, the Hawaiian honeycreepers.

Not only have the researchers determined the types of finches that the honeycreeper family originally evolved from, but they have also linked the timing of that rapid evolution to the formation of the four main Hawaiian Islands.

"There were once more than 55 species of these colorful songbirds, and they are so diverse that historically it wasn't even entirely clear that they were all part of the same group," said Heather Lerner, who was a postdoctoral researcher at the Smithsonian Conservation Biology Institute's Center for Conservation and Evolutionary Genetics when she conducted this research, and is currently an assistant professor of biology at Earlham College and Joseph Moore Museum director.

"Some eat seeds, some eat fruit, some eat snails, some eat nectar. Some have the bills of parrots, others of warblers, while some are finch-like and others have straight, thin bills. So the question that we started with was how did this incredible diversity evolve over time," Lerner said.

The answer is unique to the Hawaiian Islands, which are part of a conveyor belt of island formation, with new islands popping up as the conveyor belt moves northwest. Each island that forms represents a blank slate for evolution, so as one honeycreeper species moves from one island to a new island, those birds encounter new habitat and ecological niches that may force them to adapt and branch off into distinct species.

The researchers looked at the evolution of the Hawaiian honeycreepers after the formation of Kauai-Niihau, Oahu, Maui-Nui and Hawaii. The largest burst of evolution into new species, called a radiation, occurred between
'/>"/>

Contact: Lindsay Renick Mayer
202-633-3081
Smithsonian
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... the developmental on-off switch for Streptomyces , a ... of the world,s naturally derived antibiotic medicines. , ... is possible to manipulate this switch to make nature,s ... August 28 in Cell , found that a ... a larger protein called BldD ultimately controls whether a ...
(Date:8/28/2014)... FASEB MARC (Maximizing Access to Research Careers) ... the American College of Sports Medicine,s Conference on ... in Miami, Florida. These awards are meant ... and scientists from underrepresented groups into the mainstream ... the participation of young scientists at the American ...
(Date:8/28/2014)... Dyslexia, the most commonly diagnosed learning disability in ... that occurs when the regions of the brain ... The use of non-invasive functional neuroimaging tools has ... dyslexia. However, most prior work has focused on ... a gap in our understanding of how multiple ...
Breaking Biology News(10 mins):Small molecule acts as on-off switch for nature's antibiotic factory 2Small molecule acts as on-off switch for nature's antibiotic factory 3Dyslexic readers have disrupted network connections in the brain 2
... National data indicate that milk consumption has declined ... nutritional quality has more than doubled. Although this suggests ... in children,s diets, a new study suggests that in ... related to changes in their consumption of sodas and ...
... at the California Institute of Technology (Caltech) pioneered ... the immune system and neurodevelopmental disorders such as ... postmortem brains and of individuals with autism, as ... between alterations in the immune system and autism ...
... is a vital nutrient for pig growth, but pigs ... the University of Illinois has determined how adding various ... how pigs digest the phosphorus in four different feed ... bottom lines as well as for the environment. ...
Cached Biology News:Sugar-sweetened drinks are not replacing milk in kid's diets 2Sugar-sweetened drinks are not replacing milk in kid's diets 3Caltech researchers find evidence of link between immune irregularities and autism 2Caltech researchers find evidence of link between immune irregularities and autism 3Helping pigs to digest phosphorus 2Helping pigs to digest phosphorus 3
(Date:8/29/2014)... /PRNewswire/ - iCo Therapeutics ("iCo" or "the Company") ... for the six months ended June 30, 2014. ... dollars and presented under International Financial Reporting Standards ... , Announced top-line results related to the ... subjects enrolled in the Phase 2 iDEAL Study ...
(Date:8/29/2014)... (PRWEB) August 29, 2014 Intrinsic ... 13485:2003 certified, GAMP® 5 compliant imaging core lab, ... international Phase II clinical trial to assess a ... Throughout this trial, Intrinsic Imaging will provide comprehensive ... to, protocol and charter development, site qualification, site ...
(Date:8/28/2014)... Ind. A new research platform uses ... of tiny structures undergoing stress and heating, ... improve designs for microelectronics and batteries., This ... information about how heating and the surface ... properties. Researchers have discussed the merits of ...
(Date:8/28/2014)... , Aug. 28, 2014   SunTrust Robinson Humphrey ... industry veterans to its equity research team in ... ongoing expansion in equity research demonstrates our commitment ... insights to enhance their investment decision making," said ... STRH.  "We continue to make significant investments in ...
Breaking Biology Technology:iCo Therapeutics Announces Second Quarter 2014 Financial Results 2iCo Therapeutics Announces Second Quarter 2014 Financial Results 3iCo Therapeutics Announces Second Quarter 2014 Financial Results 4Intrinsic Imaging Awarded Phase II Clinical Trial to Assess New Treatment for Non-Hodgkin’s Lymphoma 2New analytical technology reveals 'nanomechanical' surface traits 2New analytical technology reveals 'nanomechanical' surface traits 3SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 2SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 3
... , , , , , Multiporator / Electroporator 2510 , , , ... Transformation Protocol , Protocol No. 4308 915.501 04/2002 ... , , , , , ... , Cell type , ...
... Kits , , ... Eppendorf Perfectprep Plasmid DNA Isolation Kits are designed to generate , ... automated fluorescent , sequencing, transfection, PCR, and other extremely ... In order to compare yields between our kits and the leading competitor, ...
... , Other important parameters for optimizing electroporation., , , , , , ... , Pulse length , ... Adjustment , of the electroporation buffer , ... Influence , of temperature , ...
Cached Biology Technology:Actinomyces viscosus 2Eppendorf Perfectprep Plasmid DNA Isolation , Kits 2Eppendorf Perfectprep Plasmid DNA Isolation , Kits 3Optimizing electroporation parameters 2
Mouse monoclonal antibody raised against a partial recombinant ALAS2. NCBI Entrez Gene ID = ALAS2...
Mouse monoclonal antibody raised against a partial recombinant QPCT. NCBI Entrez Gene ID = QPCT...
Mouse monoclonal antibody raised against a partial recombinant STAU2. NCBI Entrez Gene ID = STAU2...
... gun system, 220-240 V, is used for ... This handheld device employs an adjustable helium ... biomaterial-coated gold microcarriers from the inner wall ... target cells. This system has a 2 ...
Biology Products: