Navigation Links
Bald eagle diet shift enhances conservation
Date:5/3/2010

Washington, D.C.An unprecedented study of bald eagle diet, from about 20,000 to 30,000 years ago to the present, will provide wildlife managers with unique information for reintroducing Bald Eagles to the Channel Islands off California. The scientists, including researchers from the Carnegie Institution's Geophysical Laboratory, found that eagles fed mainly on seabirds from about 20,000 to 30,000 years ago to the 1840s and 50s, when humans introduced sheep. The seabirds provided an abundant source of carrion for the local eagle population until the pesticide DDT wiped out the eagles in the 1960s. The results are published in the online early edition of the Proceedings of the National Academy of Sciences USA the week of May 3, 2010.

"Reintroducing bald eagles to the Channel Islands has had mixed results," remarked lead author Seth Newsome, a postdoctoral researcher at Carnegie at the time of the study.* "An understanding of their diet is critical to successful reintroduction, so we looked for chemical traces of the foods the eagles consumed over many millennia. Since bald eagles are extremely opportunistic, they can quickly adapt to changes in the prey base of the diverse ecosystems they inhabit. Because there are no sheep on the islands today and the seabird populations are diminished, we think that the introduced eagles could scavenge seal or seal lion carrion, exert predation pressure on a threatened but recovering local seabird population, or even prey on the endangered island fox."

"Each of these sources has its challenges for wildlife managers," Newsome continued. "Several studies have shown that seals and sea lions are contaminated with pollutants, and a growing bald eagle population could potentially exert significant predation pressure on the fragile fox and seabird populations."

The scientists used a technique called stable isotope analysis of eagle bone and feather remains primarily from a historic nest on San M
'/>"/>

Contact: Seth Newsome
snewsome@uwyo.edu
831-566-3276
Carnegie Institution
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Decline in Alaskan sea otters affects bald eagles diet
2. Paradigm shift in Alzheimerss research: new treatments
3. Study links success of invasive Argentine ants to diet shifts
4. Conservation strategies must shift with global environmental change, says CU-Boulder study
5. Climate change causing significant shift in composition of coastal fish communities
6. During exercise, the human brain shifts into high gear on alternative energy
7. Shifts in soil bacterial populations linked to wetland restoration success
8. Host shift triggers cascading effect on ecosystem, research finds
9. A paradigm shift in immune response regulation
10. Smoke from cigarettes, cooking oil, wood, shift male cardiovascular system into overdrive
11. Smoke from cigarettes, cooking oil, wood, shift male cardiovascular system into overdrive
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Bald eagle diet shift enhances conservation
(Date:1/22/2015)... , Jan. 20, 2015 NXT-ID, Inc. (NASDAQ: NXTD ... market, reports on the recent success of the Wocket™ smart wallet at ... Wocket smart wallet was named as one of the "11 Hot Products ... Best Products Launched At CES So Far" by Newseveryday.com and "The top ...
(Date:1/22/2015)... Research and Markets ( http://www.researchandmarkets.com/research/wxdglm/global_wearable ) ... Wearable Technologies Market and Applications, Opportunities, Industry Analysis, ... 2014-2020" report to their offering. , ... can be worn on the user,s body and ...
(Date:12/22/2014)... , Dec. 22, 2014  NXT-ID, Inc. (NASDAQ: NXTD ... company focused on the growing mobile commerce market, announces it ... Robbins for the 2015 International CES debut of the ... will be at the NXT-ID booth January 6th and ...
Breaking Biology News(10 mins):CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 3NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 4
... an automated literature search tool for the multidisciplinary ... as a free plug-in to Cytoscape 2.1, an ... a visual map of complex biological networks, increasing ... causes of disease. , The Agilent Literature Search ...
... who last year won a Presidential Award, the nation's ... cell research one step closer to reality. , Arinzeh, ... researching the use of stem cells to induce bone ... will not properly heal. She is using adult stem ...
... University in St. Louis have discovered an entirely new ... in plant flowering and DNA methylation, a key chemical ... headed by Craig Pikaard, Ph, D., Washington University professor ... fourth kind of RNA polymerase found only in plants ...
Cached Biology News:Agilent Technologies releases automated literature search tool for biology researchers 2Agilent Technologies releases automated literature search tool for biology researchers 3NJIT Presidential Award winner takes stem cell research another step 2NJIT Presidential Award winner takes stem cell research another step 3New RNA polymerase discovered in plants 2New RNA polymerase discovered in plants 3
(Date:12/24/2014)... , Dec. 24, 2014  United Therapeutics Corporation (NASDAQ: ... MDT ) has submitted a pre-market approval ... for the use of Medtronic,s SynchroMed ® II ... for use with United Therapeutics, Remodulin ® (treprostinil) ...
(Date:12/24/2014)... Dec. 24, 2014  Vermillion, Inc. (Nasdaq:   VRML), ... announced today that the Company closed its previously ... Management, Jack W. Schuler , Birchview Fund ... $10.5 million, before offering expenses.  The proceeds will ...
(Date:12/24/2014)... December 23, 2014 “Preparative & ... HPLC, Flash), Consumables (Columns, Solvents, Buffers, Valves, Guages, ... & Agriculture) - Forecasts to 2019” provides a ... opportunities, current market trends, and strategies impacting the ...
(Date:12/24/2014)... December 23, 2014 Earlier this year in ... director of the Adult Stem Cell Technology Center, LLC ( ... appreciated unique property of adult tissue stem cells. His ... Past, Important for the Future,” embodied the essence of his ...
Breaking Biology Technology:United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Vermillion Announces Closing of Equity Financing 2Vermillion Announces Closing of Equity Financing 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 4
... 2011 /PRNewswire-iReach/ -- Advanced Technological Education Television (ATETV), ... National Science Foundation , returns with 40 new videos ... is a free Web video series featuring up to ... and employment opportunities. The series debuted in 2009 and ...
... An online library of cellular images freely available ... its one-year anniversary on August 9, 2011 by winning ... website. The Scientist announced the readers, choice ... the judges. The Cell has more than 3,000 searchable ...
... SAN FRANCISCO, Calif., Sept. 1, 2011 Veracyte, Inc., ... molecular cytology, today announced that new data from researchers ... routine use of its Afirma® Gene Expression Classifier for ... (FNA) samples will improve patient care and save the ...
Cached Biology Technology:New Videos Spotlight Science/Technology Careers and Educational Path To Secure Jobs in Them 2Free Online Library of Cell Images Wins 'The Labby' 2New Data Suggest Veracyte's Afirma® Gene Expression Classifier Cost-Effectively Resolves Inconclusive Thyroid Nodule FNA Biopsy Results 2New Data Suggest Veracyte's Afirma® Gene Expression Classifier Cost-Effectively Resolves Inconclusive Thyroid Nodule FNA Biopsy Results 3
Troponin I Immunogen: Full length native protein (purified) (Human). Storage: -20 C, Avoid Freeze/Thaw Cycles...
Anti-SDF-1β/PBSF affinity isolated antibody lyophilized powder Lyophilized from a 0.2 μm filtered solution in phosphate buffered saline recombinant human SDF-1β/PBSF expressed in E....
Immulon 4 HBX 1x12 Strip, flat bottom; high binding extra surface with special resin and irradiation, offers maximum protein uptake....
...
Biology Products: