Navigation Links
Not just the birds

In an extensive study, researchers from the University of Montana, University of California - Santa Cruz, and the University of California - Davis have shown that a top predator strongly affected plants and animals at the bottom of an island food web by eating organisms that transport nutrients between ecosystems. "An introduced predator alters Aleutian island plant communities by thwarting nutrient subsidies," is published in the February issue of Ecological Monographs.

As any biologist can attest, cells, organelles, and organisms maintain specific surface to area ratios to ensure life. Similar relations have been observed in regard to an island's size and nutrient deposition. In many cases, a small island with a large perimeter touching the sea receives more nutrients from marine ecosystems than a large island due to the differences in surface-to-area ratios. In a new study by John Maron, James Estes, Donald Croll, Eric Danner, Sarah Elmendorf, and Stacey Bucklelew, scientists have discovered that the introduction of a top predator has even affected this system.

"Our results show that the ecological effects of fox introductions extended well beyond the direct reductions of bird populations. We have clear evidence that foxes influence the terrestrial plant community and ecosystem dynamics through one particular route," state the researchers in their study.

The experiment

The Aleutian archipelago has over 450 islands in the highly productive North Pacific Ocean and Bering Sea. In the harsh northern climate, the islands are covered in maritime tundra and nutrient-impoverished soil. With no native mammals, vast populations of seabirds (29 species currently) use the area for nesting. However, over the last 100-150 years, the introduction of arctic foxes and Norway rats (Rattus norvegicus) reduced the number of birds nesting on the islands.

Arctic foxes were introduced in the late 1800's to maintain the North Pacific f
'"/>

Source:Ecological Society of America


Page: 1 2 3

Related biology news :

1. The lopsided brain: Attention bias is shared by humans and birds
2. Oil spills and climate change double the mortality rate of British seabirds
3. Uniquely human component of language found in gregarious birds
4. Light guides flight of migratory birds
5. Cities change the songs of birds
6. Bats prey on nocturnally migrating songbirds
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Not just the birds

(Date:11/18/2014)... 2014  The Secure Identity & Biometrics Association ... announce the formation of The Airport Entry and ... Identity and Biometric Entry and Exit Solutions Framework ... support from BORDERPOL, the international non-profit organization that ... expertise regarding border security, traveler and migration systems. ...
(Date:11/18/2014)... , Nov. 18, 2014   EyeLock Inc. ... solutions, and MorphoTrust USA (Safran), a ... today announced a strategic partnership to offer comprehensive ... vehicle administration (MVA), airport screening and financial services ... solutions, MorphoTrust serves consumers through a nationwide network ...
(Date:11/11/2014)... 2014  Forensicon, Inc., a Chicago ... announce the promotion of Yaniv Schiff from ... In Schiff,s new role as Director, he will lead ... forensics examiners and provide leadership within the company,s digital ... http://photos.prnewswire.com/prnh/20141110/157719 Schiff joined Forensicon in ...
Breaking Biology News(10 mins):Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 3EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 3Yaniv Schiff Promoted to Director of Digital Forensics at Forensicon, Inc. 2
... satellite swept over the Gulf of Mexico oil spill from ... Spectroradiometer instrument captured sunglints in a visible image of the ... sunglint within the area of the gray-beige colored spill. Sunglint ... surface. In calm waters, the rounded image of the sun ...
... study by a team of researchers led by Jeffrey ... University of Notre Dame, is using Nuclear Magnetic Resonance ... the dynamic flexibility of drugs and their targets. ... the American Chemical Society, contributes to the growing attention ...
... is in your drinking water? A study by a University ... next time you fill up that glass of tap water. ... the College of Arts and Sciences, sampled eight community water ... and bacteria linked to human feces that could potentially cause ...
Cached Biology News:Nuclear magnetic resonance aids in drug design 2UT study finds viruses in untreated East Tennessee drinking water 2
(Date:12/19/2014)... 2014 Egenix, Inc. is pleased to announce that ... the Board, to succeed Donald Fresne ; Mr. Fresne ... as a member of the Board.  In recognition of the ... company over almost twenty years, the Board designated Mr. Fresne ... has established a Search Committee to find a suitable replacement ...
(Date:12/17/2014)... “Never say, ‘I cannot do ... Department of Physics, advises young women pursuing careers ... SPIE Women in Optics 18-month planner ... ask questions.” , In the annual planner, women ... ranging from university professor and laboratory researcher to ...
(Date:12/17/2014)... IN (PRWEB) December 17, 2014 ... Laboratory Excellence following its most recent COLA inspection. ... by COLA, a national healthcare accreditation organization. Accreditation ... standards of quality in day-to-day operations, demonstrate continued ... pass a rigorous on-site laboratory survey. ...
(Date:12/17/2014)... CASI Pharmaceuticals, Inc. (Nasdaq: CASI ... and commercialization of innovative therapeutics addressing cancer and other ... primary commercial focus on China , ... C meeting with the U.S. Food and Drug Administration ... February 2015.  During this meeting the Company will seek ...
Breaking Biology Technology:Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 3Xeno Diagnostics Receives 3rd Award for Laboratory Excellence 2CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 2CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 3CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 4CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 5
... first quarter of 2005 amid poor overall stock market performance. ... larger cap life science companies. Note that these results dont ... have noticed headlines at the end of last week when ... (Bextra) off the market. , ,This stronger-than-expected action by the ...
... Assembly voted late Tuesday night to amend a bill ... on newly created human embryonic stem cells would be ... excludes firms that do any research involving the destruction ... stem cells from them after August 9, 2001. ...
... house packed the Securities and Exchange Commission headquarters on ... onerous section of The Sarbanes-Oxley Act of 2002 (or ... of public companies, auditors, investors, and members of the ... the section now that many large public companies have ...
Cached Biology Technology:Midwest large-cap life-science sector is solid in first quarter 2Bill would deny tax credits to firms creating stem-cell cultures 2Star panel re-evaluates Sarbanes-Oxley one year in at SEC headquarters 2Star panel re-evaluates Sarbanes-Oxley one year in at SEC headquarters 3Star panel re-evaluates Sarbanes-Oxley one year in at SEC headquarters 4
... The Precision Slide Table is designed ... double bore design provides maximum force output ... has four sets of stainless steel ball ... Bumpers or self-compensating shock absorbers provide ...
... Serum is obtained from non-demolished ... healthy, fasted donors. The donors ... way and are maintained on ... Total Protein Concentration : 85 ...
Alkaline Phosphatase (E. coli C75), 100 units. Removes 5'-phosphates from DNA. Category: Nucleotides & Enzymes & Biochemicals, Modifying Enzymes, Alkaline Phosphatases....
... CyScribe First-Strand cDNA Labeling Kit with ... For the generation and purification of ... packaged together for complete cDNA labeling ... be used for performing labeling reactions ...
Biology Products: