Navigation Links
DNA better than eyes when counting endangered species
Date:3/7/2011

WEST LAFAYETTE, Ind. - Using genetic methods to count endangered eagles, a group of scientists showed that traditional counting methods can lead to significantly incorrect totals that they believe could adversely affect conservation efforts.

Andrew DeWoody, a professor of genetics at Purdue University; Jamie Ivy, population manager at the San Diego Zoo; and Todd Katzner, a research assistant professor at the University of West Virginia, found that visual counts of imperial and white-tailed sea eagles in the Narzum National Nature Reserve of Kazakhstan significantly underestimated the imperial eagle population there. Using DNA from eagle feathers gathered in the area, the researchers were able to identify individual DNA fingerprints for each bird.

The technique showed that there were 414 eagles, more than three times as many as had been visually observed, and more than two and a half times more than modeling suggested would be there.

"A biologist doesn't always see them coming and going," said DeWoody, whose findings were published in the early online version of the journal Animal Conservation. "Eagles are difficult to capture, mark and resight. Biologists in the field can't differentiate individuals, whereas by a genetic fingerprint geneticists can differentiate among individuals that have visited a site."

DeWoody, Ivy and Katzner, with collaborator Evgeny Bragin of the Narzum Natural Nature Reserve collected thousands of eagle feathers around roosts and nesting sites. DeWoody's team at Purdue was able to extract DNA from those feathers and determine that there were hundreds of eagles that had recently visited the site.

"Generally we say 'what you see is what you get,' but in this case it's the complete opposite," said Katzner, who used the data to model more accurate estimates of eagle populations. "When your field data are off by that much, it's difficult to build accurate models because your starting poi
'/>"/>

Contact: Brian Wallheimer
bwallhei@purdue.edu
765-496-2050
Purdue University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Army can boost mission success by better managing
2. Efavirenz-based initial therapies associated with better outcomes in HIV-infected adults
3. Caltech scientists engineer supersensitive receptor, gain better understanding of dopamine system
4. Better beer: College team creating anticancer brew
5. Building a better bee
6. Men are better at detecting infidelities
7. Sniffing out a better chemical sensor
8. Sibling study could lead to better treatments for inherited form of colon cancer
9. Soybean grant gives researchers tools to unravel better bean
10. EPA and USDA should create new initiative to better monitor nutrients
11. In the animal world, bigger isnt necessarily better
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
DNA better than eyes when counting endangered species
(Date:6/30/2015)... , June 30, 2015 To bolster its ... provider HYPR Corp. announced today the addition of two new ... serve as board advisor and David Raviv will ... team underscore HYPR Corp.,s commitment to providing the most secure ... Dimitri Sirota co-founded Layer 7 Technologies, a provider of ...
(Date:6/26/2015)... 2015 ATL Technology, LLC, a top provider of ... single use solutions, headquartered in Springville, Utah ... California corporation with locations in ... Costa Rica ). This acquisition will incorporate ... with ATL Technology,s existing facility in Costa Rica ...
(Date:6/25/2015)... -- TAKE Solutions Ltd., a global business technology solutions provider, ... and Trademark Office (USPTO) for its "Method for Optimizing ... Accelerators to reduce the time taken to standardize trial ... the accelerators), thus reducing time to market. ... heart of the patented Clinical Data Standardization Process are ...
Breaking Biology News(10 mins):HYPR Corp. Expands Biometric Authentication Team with Enterprise All Stars 2HYPR Corp. Expands Biometric Authentication Team with Enterprise All Stars 3ATL Technology Announces Acquisition of MedConx, Inc. and Expanded Global Footprint 2TAKE Solutions Awarded Patent By USPTO 2
... and dairy products analysed in various restaurants exceed the ... to a study carried out by researchers from the ... milk in jugs and suggest that these foodstuffs need ... dairy products we analysed, 35% of the samples exceeded ...
... the Journal of Clinical Endocrinology & Metabolism , shows ... density and reduced bone size in their grandsons. "This ... mass has been demonstrated across two generations," says associate professor ... Academy. "This new risk factor may be significant for the ...
... In a major step toward commercialization of a promising ... exclusively licensed patents on inventions based on the Nell-1 ... out of the Department of Energy laboratory. The ... Nell-1 gene,s cell-signaling pathway that controls tissue growth and ...
Cached Biology News:Study recommends better handling of milk in restaurants 2Grandpa's broken hip may mean weaker bones for his grandsons 2UT-Battelle licenses tissue regeneration technologies to NellOne Therapeutics, Inc. 2
(Date:7/2/2015)... , July 2, 2015 ... Bio-tech procurement company Amici Procurement has chosen Microsoft ... help it move to Office 365.      ... provides small to medium-sized companies in the bio-tech sector ... aspects of the purchasing cycle to help them obtain ...
(Date:7/1/2015)... PARK, N.C. and PARIS ... research firm AgBiome, and Genective, key developer of ... accelerate the discovery of new generations of insect ... for insect control to counter the realities of ... with Genective, aligning AgBiome,s unique insect control technology ...
(Date:7/1/2015)... 2015   Neuraltus Pharmaceuticals, Inc. , a privately-held ... drugs to treat neurodegenerative diseases such as amyotrophic ... G. Miller , M.D., Director of the Forbes Norris ... Medical Center in San Francisco, has been awarded a ... to help fund a Phase 2 clinical study ...
(Date:7/1/2015)... InferMed , s ... will augment ... s olutions suite   Elsevier , ... and services, announced today the acquisition of  InferMed , a ... company. InferMed,s Arezzo technology supports clinicians in choosing ...
Breaking Biology Technology:Biotech Procurement Company Moves to Office 365 with iomart 2AgBiome and Genective collaborate to create novel insect-resistant crops 2Investigator to Receive $1.5 Million Grant from the ALS Association to Help Fund Confirmatory Phase 2 Study of Neuraltus Pharmaceuticals' NP001 2Investigator to Receive $1.5 Million Grant from the ALS Association to Help Fund Confirmatory Phase 2 Study of Neuraltus Pharmaceuticals' NP001 3Investigator to Receive $1.5 Million Grant from the ALS Association to Help Fund Confirmatory Phase 2 Study of Neuraltus Pharmaceuticals' NP001 4Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 2Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 3Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 4
... Additional "FOR" Votes Required for Integra Merger, IRVINE, ... ("IsoTis"), an orthobiologics company, today reported that,less than 100,000 ... by Integra LifeSciences Holdings Corporation (NASDAQ: IART ),("Integra") ... as of August,6, 2007. Today,s special meeting of ...
... 26 PURE Bioscience (OTC,Bulletin Board: PURE), creators ... in a revolutionary new hard surface,disinfectant which kills ... the Company will present at the Biocom Investor ... Diego Marriott Del Mar. Michael L.,Krall, CEO, will ...
... Oct. 26 Pharmasset, Inc.,(Nasdaq: VRUS ) management will be ... Acumen BioFin Rodman & Renshaw 9th Annual Healthcare Conference being ... York Palace Hotel in New York City. ... Officer, will provide an overview of the company on Tuesday, ...
Cached Biology Technology:IsoTis Reports Status of Merger Vote 2IsoTis Reports Status of Merger Vote 3IsoTis Reports Status of Merger Vote 4PURE Bioscience to Present at Biocom Investors Conference 2PURE Bioscience to Present at Biocom Investors Conference 3PURE Bioscience to Present at Biocom Investors Conference 4Pharmasset to Present at Three Investor Conferences in November 2007 2
... FAST RED Chromogen System consists ... substrate buffer. FAST RED reacts ... phosphatase to produce red staining ... The FAST RED ...
Tris-EDTA Buffer Solution, 1X, pH 8.0, sterile...
Chicken polyclonal to YebU ( Abpromise for all tested applications). Antigen: Full length YebU (Escherichia coli)...
Human Cell Line Slides...
Biology Products: