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:8/21/2014)... tube connectors, designed by an international standards process, will ... According to an invited review published in the OnlineFirst ... NCP ), the official journal of the American Society ... will greatly reduce the occurrence of misconnection that can ... connectors, which are used to join medical devices, components, ...
(Date:8/21/2014)... from North Carolina State University have developed a novel ... model has applications for creating new materials as well ... "Our new technique allows us to model much larger ... much more quickly," says Nan Li, lead author of ... in NC State,s Department of Materials Science and Engineering. ...
(Date:8/20/2014)... a study of 158 pregnant teenagers in Rochester, NY, ... intentional consumption of ice, cornstarch, vacuum dust, baby powder ... Cornell study. , Moreover, such teens had significantly lower ... eat nonfood substances. , Pregnant teens, regardless of pica, ... lead to iron deficiency and anemia. Low iron in ...
Breaking Biology News(10 mins):New feeding tube connectors will improve patient safety 2Researchers develop models to study polyelectrolytes, including DNA and RNA 2Pica in pregnant teens linked to low iron 2
... WASHINGTON, D.C. (March 7, 2011) -- All our daily activities, ... on signals carried along the body,s vast network of neurons. ... small molecules within nerve cells -- receptors, ion channels, and ... recently, the study of these molecules in real time has ...
... gene that causes Hajdu-Cheney syndrome, a disorder of the ... The study, published in Nature Genetics today, ... highlights the gene as a potential target for treating ... reported cases of Hajdu-Cheney syndrome (HCS), of which severe ...
... separates from Greenland, is the calving due to typical ... called the Scalable, Efficient, and Accurate Community Ice Sheet ... Ridge National Laboratory, aims to use state-of-the-art simulation to ... climate. ORNL computational Earth scientist Kate Evans leads ...
Cached Biology News:Gene responsible for severe osteoporosis disorder discovered 2
(Date:8/20/2014)... 20, 2014 The 6th Annual ... held on October 29-30 in San Francisco, CA. This ... and government researchers and clinicians focused on addressing and ... , In the twelve years since the sequencing of ... been introduced with pharmacogenetic information in the label and ...
(Date:8/20/2014)... SAN JOSE, Calif. , Aug. 20, 2014 ... UCSD highlights the transformative collaboration between the school,s ... (IoT).  As part of the Intel® Software Academic ... between computer sciences and the human body.  ... The study exhibits the work of ...
(Date:8/20/2014)... Cranford, NJ (PRWEB) August 20, 2014 ... solutions, announced today that it has expanded its myPROpad™ ... of the EQ-5D-5L, one of the most widely ... for measuring general health status. The EQ-5D is used ... to generate a measure that can be used to ...
(Date:8/19/2014)... (PRWEB) August 20, 2014 One ... regenerative medicine is an inadequate vascular supply. Nutrient ... and decellularized tissues is critical for successful regeneration ... attempted to mitigate deficiencies in vascularization and promote ... scaffold bioactivity, optimizing scaffold design and architecture, and ...
Breaking Biology Technology:6th Annual Personalized and Precision Medicine Conference Bringing Together Thought Leaders to Discuss Clinical Implementation, Dx Reimbursement, Big Data, and Sequencing 2Intel and University of San Diego Bioengineering Department Release Case Study on Health Sciences Research 2EQ-5D™ Assessment Now Available for iPad 2Vascularization in Tissue Engineering Highlighted at 12th New Jersey Symposium on Biomaterials Science 2
... LA JOLLA, Calif., Jan. 13 Burnham ... an assay development and license agreement with ... L.L.C. (J&JPRD). The agreement is Burnham,s ... company.Under this multi-year agreement, Burnham will provide ...
... - GeneNews Limited (TSX: GEN), a company focused ... detection of diseases and personalized health management, today ... 7,473,528 entitled "Method for the detection of Chagas ... protects the Company,s discovery of a blood biomarker-based ...
... Datafarm, Inc. a leading provider of Electronic Document Publishing Solutions and ... announce the appointment of Mr. Daniel F. Orfe to Vice President, ... will oversee Datafarm,s Regulatory Services Group. , ... Marlborough, ...
Cached Biology Technology:Burnham Announces Assay Development and License Agreement with Johnson & Johnson Pharmaceutical Research & Development, L.L.C. 2GeneNews granted U.S. patent for Chagas disease based on Sentinel Principle(TM) platform 2Datafarm, Inc., Announces the Appointment of Daniel F. Orfe to Vice President, Global Regulatory Submission Services 2Datafarm, Inc., Announces the Appointment of Daniel F. Orfe to Vice President, Global Regulatory Submission Services 3Datafarm, Inc., Announces the Appointment of Daniel F. Orfe to Vice President, Global Regulatory Submission Services 4
... of Tracker, plus software to note when the ... a food reward.The Spatial Behavior line is a ... camera, frame grabber, and feature extraction software and ... up to 6 moving animals. Software automatically ...
... Behavior System. Enables replay of a reorded ... parts, and scoring events and duration by button ... Behavior line is a family of instruments all ... feature extraction software and that can track two ...
... fermentation systems for cultivation of microorganisms and ... of bio-pharmaceutical products maximum performance and economy ... and cell fermentation 10 L 1,500 ... ,*Fully automated control system ,*High-quality ...
... technology, SilenceMag is the most efficient ... and easy to use, SilenceMag is ... designed for siRNA delivery, SilenceMag allows ... doses of siRNA.,SilenceMag formulation gives reliable ...
Biology Products: