Navigation Links
Rats on islands disrupt ecosystems from land to sea, researchers find
Date:2/25/2008

protection and restoration of island ecosystems. For the Aleutian Island rat eradication project, Island Conservation has teamed up with the Nature Conservancy and the U.S. Fish and Wildlife Service.

"Our research is giving us a better understanding of the impacts of introduced rats, and by working directly with government agencies and nongovernmental organizations we're able to do something about it," Croll said.

The study describes an elegant example of an ecological phenomenon known as a trophic cascade. "In a trophic cascade, you have an apex predator--in this case, the rat--and because of what that predator eats, you get a cascade of effects that go down through lower levels of the food chain," Kurle said. "This is a clear example of a trophic cascade that crosses between terrestrial and marine ecosystems."

Kurle spent three summers conducting intertidal surveys on 32 islands in the Aleutian Archipelago--17 with rats and 15 without. At first, camping on rat-infested islands was disconcerting, she said. She had to wear ear plugs the first few nights because the sound of rats rustling around outside the tent was keeping her awake. But she soon got used to it.

"We had to be careful with food and trash, but they never got into the tent or anything," Kurle said. "They come out as soon as it starts to get dark, and we would see them running around everywhere. We spent several nights watching them through night-vision binoculars."

The researchers found large numbers of dead birds partially eaten by rats on the islands. The rats mainly attack the chicks, but may also go after adults, Kurle said. Very few birds manage to breed successfully on the rat-infested islands.

Another recent paper from Croll and Tershy's group provides a global overview of the direct effects of invasive rats on seabirds. Published in the February issue of Conservation Biology, the paper reviews the findings of 94 published studies. First au
'/>"/>

Contact: Tim Stephens
stephens@ucsc.edu
831-459-2495
University of California - Santa Cruz
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. First wind turbines on Galapagos Islands will halve diesel imports, reduce risk of future oil spills
2. Disrupting common parasites ability to talk to each other reduces infection
3. Climate gas could disrupt food chain
4. City birds better than rural species in coping with human disruption
5. Adapting local ecosystems can soften impact of global climate change
6. Map is first to track global human influences on ocean ecosystems
7. First map of threats to marine ecosystems shows all the worlds oceans are affected
8. Resilience concepts poised to aid management of coastal marine ecosystems
9. At the root of nutrient limitation, ecosystems are not as different as they seem
10. Genetically engineered corn may harm stream ecosystems
11. Study shows genetically engineered corn could affect aquatic ecosystems
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/15/2014)... Research and Markets ( http://www.researchandmarkets.com/research/87pph8/global_facial ... "Global Facial Recognition Market 2015-2019" report to ... Facial recognition is a technology ... system measures the overall facial feature of a ... the distance between eyes. Facial recognition is used ...
(Date:12/10/2014)... You,ve been here before: you desperately need to sign into ... key or the answer to your secret question. What,s your ... Today, Hoyos Labs , a digital infrastructure security ... an end to the frustration that comes with usernames, passwords ... a user,s smartphone to acquire his or her biometrics to ...
(Date:12/10/2014)... 9, 2014     ...   Jifflenow, a ... solutions for business-to-business (B2B) events, today announced a ... mobile near-field communication (NFC), Bluetooth low energy (BLE), ... http://photos.prnewswire.com/prnh/20140612/691055) , Jifflenow will integrate its ...
Breaking Biology News(10 mins):Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3
... -- Foiling exfiltration . . . Computer hackers ... developed by a team led by Justin Beaver of Oak ... attackers who breach a system,s defense have a distinct advantage ... window into potentially sensitive data and their true identity and ...
... Two new studies by researchers at the University of ... that eating rate plays in the amount of food ... faster than women, heavier people eat faster than slimmer ... grains, among other findings. Kathleen Melanson, URI associate ...
... of Mediterranean mountains could expand by up to 350% due to ... to cold and humid conditions, such as beech and Sylvester pines, ... possible in the 21st century according to a model created to ... Sistema Central and the Sistema Ibrico (Spain). A team led ...
Cached Biology News:Story tips from the US Department of Energy's Oak Ridge National Laboratory, November 2011 2Story tips from the US Department of Energy's Oak Ridge National Laboratory, November 2011 3Story tips from the US Department of Energy's Oak Ridge National Laboratory, November 2011 4Researcher provides further evidence that slow eating reduces food intake 2Holm oaks will gain ground in northern forests due to climate change 2
(Date:12/22/2014)... , Dec. 22, 2014   Synthetic ... developer of pathogen-specific therapies for serious infections ... the microbiome, today announced positive topline safety ... clinical trial of SYN-004, the Company,s investigational ... Clostridium difficile (C. difficile) infection, ...
(Date:12/22/2014)... 22, 2014  Alternative Energy & Environmental Solutions, ... signed a letter of intent to acquire BioTechPharma ... patented a nanotechnology-based development platform used to create ... rapid on-site collection and testing to identify infectious ... in an immediate, non-invasive and cost-effective manner. ...
(Date:12/22/2014)... , Dec. 22, 2014  ( www.competitivehealth.com ) ... an online medical bill review and advocacy service, has ... the FREE WellCard Savings discount health services marketplace. ... that was more than they expected to pay. As ... health care costs, WellCard Savings is pleased to offer ...
(Date:12/22/2014)... 22, 2014 ITRA Global, one of ... of commercial real estate, has further expanded its global ... Perth and Brisbane, Western Australia, reports Mylinda Vick, CCIM, ... ITRA Global / ACORPP (Australian Corporate Property and ... company providing property services to a wide range of ...
Breaking Biology Technology:Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 2Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 4Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 5ALNE Announces Intention To Acquire BioTechPharma 2WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2ITRA Global Continues International Expansion in Perth and Brisbane, Australia 2
... Biologics, Inc.  (NYSE Amex: SYN ), a ... for serious illnesses, announced today that Jeff Riley, the ... Capital Partners 24th Annual Growth Stock Conference. The conference ... Carlton in Dana Point, CA. Mr. Riley will present ...
... and LONGNAN CITY, China, March 6, 2012   Apexigen, ... Duyiwei Biological Pharmaceutical Co., Ltd. (GDBP), which is ... that they entered into a collaboration to grant ... commercialize APX004 in China.   APX004 is a humanized ...
... ORLANDO, Fla., March 6, 2012 CSL Behring announced ... Esterase Inhibitor (Human) within six hours of the onset of ... symptom relief than later treatment, according to data presented at ... Annual Meeting. While HAE patients treated within six hours of ...
Cached Biology Technology:Synthetic Biologics to Present at ROTH Annual Growth Stock Conference 2Apexigen and Shanghai Duyiwei Biotechnology Co. Ltd Sign a License and Collaboration Agreement to Develop and Commercialize APX004 2Apexigen and Shanghai Duyiwei Biotechnology Co. Ltd Sign a License and Collaboration Agreement to Develop and Commercialize APX004 3CSL Behring Study Confirms Early Treatment with Berinert® Provides Faster Resolution of Acute Hereditary Angioedema Symptoms 2CSL Behring Study Confirms Early Treatment with Berinert® Provides Faster Resolution of Acute Hereditary Angioedema Symptoms 3CSL Behring Study Confirms Early Treatment with Berinert® Provides Faster Resolution of Acute Hereditary Angioedema Symptoms 4
IKKbeta/IKK-2 Polyclonal Antibody 100 ug affinity purified rabbit polyclonal antibody. Reacts with human. Tested in Western blotting....
...
Request Info...
... The S.c. EasyComp Transformation Kit ... transformation-competent Saccharomyces cerevisiae cells. Advantages over ... spheroplast formation or LiCl methods include:- Cells ... than 30 minutes - Competent cell preparation ...
Biology Products: