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

SANTA CRUZ, CA--Seabird colonies on islands are highly vulnerable to introduced rats, which find the ground-nesting birds to be easy prey. But the ecological impacts of rats on islands extend far beyond seabird nesting colonies, according to a new study by researchers at the University of California, Santa Cruz.

The study, which will be published the week of February 25, 2008, in the Proceedings of the National Academy of Sciences, has already helped make the case for the first major rat eradication effort in the Aleutian Islands. Planned to begin this summer, the project will target rats on the appropriately named Rat Island.

The UCSC researchers found that the presence of rats on islands in the Aleutian Archipelago dramatically alters the intertidal zone, reducing the amount of seaweed and increasing the numbers of snails, barnacles, and other invertebrates. These changes result from the decimation of seabird populations by the rats, according to graduate student Carolyn Kurle, who led the study.

"When you're on an island with rats, there are so few birds it's silent, in contrast to the cacophony on the islands without rats," Kurle said.

Some of the affected birds--sea gulls and oystercatchers, in particular--are major predators of invertebrates in the intertidal zone. In their absence, the snails, limpets, and other grazers increase in abundance, eat more algae, and clear more space for other invertebrates to settle and grow. The result is a shoreline practically stripped bare of the usual cover of fleshy algae (i.e., seaweed).

"Where there are no rats, we found plenty of birds, fewer invertebrates, and a lot more algal cover," Kurle said.

Kurle's coauthors are associate professor Donald Croll and assistant adjunct professor Bernie Tershy of UCSC's Department of Ecology and Evolutionary Biology. Croll and Tershy are also the cofounders of Island Conservation, a nonprofit organization dedicated to the
'/>"/>

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:7/25/2014)... MOResearchers at the Stowers Institute for Medical Research ... pheromone receptors, and found pheromones crucial to triggering the ... of receptors helps a male mouse detect pheromones that ... of receptors lets him know if the female mouse ... pheromones are critical to trigger mating. Stowers, researchers believe ...
(Date:7/24/2014)... 2014) Scientists at The New York Stem ... closer to creating a viable cell replacement therapy ... , For the first time, NYSCF scientists ... skin samples of patients with primary progressive multiple ... to induce these stem cells into becoming oligodendrocytes, ...
(Date:7/24/2014)... 24, 2014) Scientists at The New York ... step closer to creating a viable cell replacement ... cells. , For the first time, NYSCF ... from skin samples of patients with primary progressive ... protocol to induce these stem cells into becoming ...
Breaking Biology News(10 mins):It takes two to court 2It takes two to court 3NYSCF scientists one step closer to cell therapy for multiple sclerosis patients 2NYSCF scientists 1 step closer to cell therapy for multiple sclerosis patients 2
... As the human population increases, so too do the ... issue of International Journal of Plant Sciences , ... Sarah Assmann explores how the responses to environmental stresses ... possible approaches to addressing growing human demand for crop ...
... despite the yuck factor, have captured the hearts of two ... team that this week is publishing the leech,s complete genome ... Weisblat, a UC Berkeley professor of molecular and cell biology ... sequencing initiative that has targeted a variety of animals in ...
... the quest to find the easiest and fastest way to ... In an article published in Frontiers in Microbiology on ... polymerase chain reaction (PCR) system to discover specific gene targets ... show that assays performed using this PCR system are rapid, ...
Cached Biology News:Can observations of a hardy weed help feed the world? 2What do leeches, limpets and worms have in common? Now, a sequenced genome 2What do leeches, limpets and worms have in common? Now, a sequenced genome 3USDA explores using novel genetic labs for faster detection of E. coli 2
(Date:7/24/2014)... Calif. , July 24, 2014  ECC West ... Denver, Colorado with University College Hospital (UCH) ... a development project to finance, design, construct, and operate ... Nigeria . Under the first of ... prepare scoping documents and funding applications. UCH Ibadan intends ...
(Date:7/24/2014)... of Engineering at the University of Delaware, is ... in energy engineering, environmental sustainability and electronics. , ... rock with a well-defined, crystalline structure. At the ... decided that zeolites can separate molecules with size ... (one-tenth of a nanometer), making them useful to ...
(Date:7/24/2014)... (PRWEB) July 24, 2014 Your ... advances in modeling lithium-ion battery storage capacity. , ... from a theoretical model created at Lawrence ... that predicts how carbon components will perform ... storage emphasizes the urgent need for higher-performance batteries. ...
(Date:7/24/2014)... 24, 2014 2014 Deep Research ... is a professional and in-depth research report on ... Sulphate basic information, including its definition, classification, ... This research covers the international market analysis, including ... analysis covering macroeconomic environment & economic situation analysis, ...
Breaking Biology Technology:ECC Signs a Contract for the Finance, Design, and Construction of a Premier Cancer Institute in Ibadan, Nigeria 2University of Delaware researcher describes new approach for creating organic zeolites 2Getting More Life out of Lithium-ion Batteries 2Potassium Sulphate Market & SHMP Industry 2014 (Global, China) Analysis Now Available at DeepResearchReports.com 2Potassium Sulphate Market & SHMP Industry 2014 (Global, China) Analysis Now Available at DeepResearchReports.com 3Potassium Sulphate Market & SHMP Industry 2014 (Global, China) Analysis Now Available at DeepResearchReports.com 4
... October 1 , - "Expert Consult" ... Content is Always Current, Elsevier, the ... the publication of the 40th edition of ... Gray,s Anatomy: The Anatomical Basis of Clinical,Practice ...
... product design and development, manufacture, and distribution ... ... 1 Cylex has announced receipt of,certification to ISO ... Canadian Medical Devices Conformity Assessment,System (CMDCAS). These certifications signify ...
... Sept. 30 NxStage Medical,Inc. (Nasdaq: NXTM ), ... Jeffrey H. Burbank, Chief Executive Officer,and Robert S. Brown, ... Healthcare Focus Conference on October 6, 2008 at Le ... is scheduled for Monday, October 6th at,2:30 p.m. ET. ...
Cached Biology Technology:New 40th Edition of Gray's Anatomy Celebrates 150 Years as the World's Preeminent Anatomical Reference 2New 40th Edition of Gray's Anatomy Celebrates 150 Years as the World's Preeminent Anatomical Reference 3Cylex(TM) Receives ISO 13485:2003 and 9001:2000 Quality Certifications 2NxStage Medical to Present at JMP Securities Healthcare Focus Conference 2
Mouse anti human pro-Relaxin-2...
Rabbit polyclonal to Dishevelled 2 ( Abpromise for all tested applications). entrezGeneID: 1856 SwissProtID: O14641...
... polyclonal to ErbB 2 - BSA ... for all tested applications). ... conjugated to KLH, corresponding to C ... c-ErbB2 Entrez GeneID: ...
Anti human PPAR gamma2 mouse monoclonal antibody...
Biology Products: