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:1/22/2015)... , Jan. 21, 2015  Analyst Report Issued by Small ... Brands report showed that planet-wide, transactions at merchants on the ... the total number of credit, debit, and prepaid cards reached ... were victims of fraudulent card usage in 2012, and credit ...
(Date:1/22/2015)... NEW YORK , Jan. 22, 2015   EyeLock, Inc. ... announced it has appointed Steve Gerber to the ... Gerber will be responsible for leading development of mobile platforms ... 25 years of success and innovation in the semiconductor industry ...
(Date:12/22/2014)... Inc. (NASDAQ: NXTD and NXTDW) ("NXT-ID" or ... mobile commerce market, announces it has retained famous pickpocket, entertainer ... International CES debut of the Wocket™ biometric smart wallet.  ... NXT-ID booth January 6th and 7 th , 2015, demonstrating ...
Breaking Biology News(10 mins):$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2EyeLock Names Steve Gerber as Senior Vice President of Mobile and Wearables 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
... Tuesday, Nov. 16, 2010 Tying in with ... new pre-conference workshops will debut at this year,s TERMIS-North ... Orlando, Fla. The TERMIS (Tissue Engineering & ... by the Wake Forest Institute for Regenerative Medicine, and ...
... brink of an era of mass extinctions similar to ... disappeared from the Earth, reports a biologist at Penn ... a species-rescue program for Haiti,s threatened frogs and other ... few decades, many Haitian species of plants and animals ...
... SAN DIEGO New research indicates that the ... About two percent of the population has a condition called ... are experienced at once. Although this condition is rare, the ... sometimes overlapping ways to help people interpret and understand their ...
Cached Biology News:Regenerative medicine workshops to debut at TERMIS North America Annual Conference 2Rescue missions underway to save Haiti's species from mass extinctions 2Rescue missions underway to save Haiti's species from mass extinctions 3Rescue missions underway to save Haiti's species from mass extinctions 4Rescue missions underway to save Haiti's species from mass extinctions 5Hearing colors, seeing sounds: New research explores sensory overlap in the brain 2
(Date:1/22/2015)... 22. 2015  Varian Medical Systems (NYSE: VAR ), ... for its commitment to sustainability with inclusion on a prestigious ... highest ranked healthcare equipment company among the Corporate Knights Global ... Economic Forum at Davos, Switzerland . ...
(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)... 2014 “Preparative & Process Chromatography ... Consumables (Columns, Solvents, Buffers, Valves, Guages, Seals), Accessories, ... - Forecasts to 2019” provides a detailed overview ... market trends, and strategies impacting the preparative and ...
(Date:12/24/2014)... Bethesda, MD (PRWEB) December 23, 2014 ... law H.R. 83, the Omnibus and Continuing Resolution Appropriations ... hydrocephalus a condition eligible to receive funding through the ... Department of Defense (DoD). The Hydrocephalus Association (HA), working ...
Breaking Biology Technology:Varian Honored Among World's 100 Most Sustainable Corporations 2United 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 4Preparative 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 4Rare Brain Condition Now Eligible for Department of Defense Research Dollars 2
... Neuftec,Limited, the proprietor of the original nano-particulate ... claim against Oxonica Energy,Limited, a wholly owned subsidiary ... in the High Court of Justice, has commented ... by Dr Matthews,(CEO) on 19 June 2008., ...
... have invented an affordable technique that uses lasers and ... needed for new generations of microchips. , The ... times narrower than a human hair, may enable the ... applications in medicine, optical communications, computing and sensor technologies. ...
... June 18 ,Exelixis, Inc. (Nasdaq: EXEL ) announced ... officer at Exelixis, will present at the,Piper Jaffray Europe ... time on Wednesday, June 25, 2008. Mr. Karbe will ... The presentation will be webcast and may be ...
Cached Biology Technology:Neuftec Responds to a Fundamental Inaccuracy in Oxonica PLC's Regulatory Announcement 2Trap and zap: Harnessing the power of light to pattern surfaces on the nanoscale 2Trap and zap: Harnessing the power of light to pattern surfaces on the nanoscale 3
Formula variant: With macro- and micronutrients. Physical Form: powder Suitab tst: plant cell culture tested...
... Analyzer for superior sensitivity, mass accuracy, and resolving power., Specifications:, ... ion selection range: 150 - 4000 m/z, * Resolution: 14,000 (1400 ... * Dynamic range: 4 orders of magnitude ... ...
... PHD2000 syringe pump series combines Harvard Apparatuss best ... and a wide range of configuration options. A ... dimensions of syringes from all the major manufacturers. ... all the pertinent information from across the lab. ...
Mouse monoclonal antibody to RAD51L3 - RAD51-like 3 (S. cerevisiae)...
Biology Products: