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:10/15/2014)... virus is spreading rapidly and to an unexpected extent. ... the past and the virus shows a new disease ... before. For this reason, the German National Academy of ... and Engineering, and the Union of the German Academies ... the Ebola epidemic today. , In the statement the ...
(Date:10/14/2014)... Like discriminating thieves, prostate cancer tumors scavenge and hoard ... But such avarice may be a fatal weakness. ... to kill prostate cancer cells by delivering a trove ... the diseased cells brimming with the mineral, leaving non-cancer ... drugs already commercially available for other uses, could soon ...
(Date:10/14/2014)... research team has discovered a new kind of stem cell ... that lines liver blood vessels, according to a study published ... existence of such a cell type contradicts current theory on ... may hold clues to origins of, and future treatment for, ... single cell into a complex being made up of more ...
Breaking Biology News(10 mins):Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5Prostate cancer's penchant for copper may be a fatal flaw 2Stem cell discovery challenges dogma on how fetus develops; holds insights for liver cancer and reg 2Stem cell discovery challenges dogma on how fetus develops; holds insights for liver cancer and reg 3
... scientists at the University of Minnesota Medical School and ... and made suggestions on how to advance research and ... published in the January 2008 issue of the Lancet ... , Many neurological disorders are difficult to treat because ...
... and the National Center for Ecological Analysis and Synthesis ... predict gene flow across landscapes. Their approach could give ... for wildlife corridors, which are crucial to protecting biodiversity. ... theory and ecological connectivity, said Brad McRae, head of ...
... the University of California, San Diego have discovered a ... in the gene are present in both the female ... a paper that appears online today in the journal ... consent mutation because of its unusual properties. Mutations ...
Cached Biology News:International scientists tackle obstacles to treating brain disorders 2International scientists tackle obstacles to treating brain disorders 3Model connects circuit theory to wildlife corridors 2Biologists find unusual plant gene: abstinence by mutual consent 2Biologists find unusual plant gene: abstinence by mutual consent 3
(Date:10/18/2014)... (PRWEB) October 18, 2014 The ... defines and segments the bio-based advanced phase change ... of revenue. , Browse through the TOC of ... report to get an idea of the in-depth ... the segmentation in the Asia-Pacific bio-based advanced phase ...
(Date:10/18/2014)... The Asia-Pacific Liquid Crystal on Silicon (LCoS) display ... Asia-Pacific with analysis and forecast of revenue. This market ... expected to reach $380.0 million by 2018, at a ... through the TOC of the Asia-Pacific LCoS display market ... provided. This also provides a glimpse of the segmentation ...
(Date:10/18/2014)... The report " Cloud Analytics Market ... Speech; Machine; Video; Predictive Analytics: Global Advancements, Delivery ... Analysis (2013 - 2018) ", defines and segments ... segments with an in-depth analysis and forecasting of ... driving this market, various restraints, and opportunities impacting ...
(Date:10/17/2014)... Germany , October 17, 2014 ... Translational research in cancer and other diseases will ... American Society of Human Genetics annual meeting   ... to Ingenuity ®  Knowledge Base greatly exceeds any ... Ingenuity ®  Variant Analysis™ adds fully integrated ...
Breaking Biology Technology:The Asia-Pacific Bio-based Advanced Phase Change Materials Market is estimated to grow to $39.8 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Bio-based Advanced Phase Change Materials Market is estimated to grow to $39.8 million by 2018 - New Report by MicroMarket Monitor 3The Asia-Pacific Bio-based Advanced Phase Change Materials Market is estimated to grow to $39.8 million by 2018 - New Report by MicroMarket Monitor 4The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market is expected to reach $380.0 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market is expected to reach $380.0 million by 2018 - New Report by MicroMarket Monitor 3Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 2Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 3Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 4Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 5QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 2QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 3QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 4QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 5QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 6
... , ... , , , , ... 2100 bioanalyzer can,be used in combination with Standardized RT (StaRT)-PCR ... obtain highly reproducible, standardized gene expression,measurement with RT-PCR. The internal ...
... , , ... , , , This Application ... kit can be used to detect cell surface,and intracellular protein targets ... staining on CCRF-CEM cells and intracellular,glucocorticoid receptor (GR) staining of H4 ...
... , ... , , This Application Note describes ... be used to determine the efficiency,of transfection of mammalian cells using ... with,expression vectors encoding GFP from two different sources, and optimization,of transfection ...
Cached Biology Technology:Quantitative end-point RT-PCR gene,expression measurement using the,Agilent 2100 Bioanalyzer and,standardized RT-PCR 2Quantitative end-point RT-PCR gene,expression measurement using the,Agilent 2100 Bioanalyzer and,standardized RT-PCR 3Quantitative end-point RT-PCR gene,expression measurement using the,Agilent 2100 Bioanalyzer and,standardized RT-PCR 4Quantitative end-point RT-PCR gene,expression measurement using the,Agilent 2100 Bioanalyzer and,standardized RT-PCR 5Quantitative end-point RT-PCR gene,expression measurement using the,Agilent 2100 Bioanalyzer and,standardized RT-PCR 6Quantitative end-point RT-PCR gene,expression measurement using the,Agilent 2100 Bioanalyzer and,standardized RT-PCR 7Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 2Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 3Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 4Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 5Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 6Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 7Detection of antibody-stained cell,surface and intracellular protein targets,with the Agilent 2100 bioanalyzer 8Monitoring transfection efficiency by,green fluorescent protein (GFP) detection,with the Agilent 2100 bioanalyzer 2Monitoring transfection efficiency by,green fluorescent protein (GFP) detection,with the Agilent 2100 bioanalyzer 3Monitoring transfection efficiency by,green fluorescent protein (GFP) detection,with the Agilent 2100 bioanalyzer 4Monitoring transfection efficiency by,green fluorescent protein (GFP) detection,with the Agilent 2100 bioanalyzer 5Monitoring transfection efficiency by,green fluorescent protein (GFP) detection,with the Agilent 2100 bioanalyzer 6Monitoring transfection efficiency by,green fluorescent protein (GFP) detection,with the Agilent 2100 bioanalyzer 7
... Error-free cloning of BAC (100+kb), fosmid ... Greater insert stability than any othe BAC ... for high yields and easy recombinant DNA ... or transcription-free (pSMART VC) vectors for the ...
Anti-Goat HRP-DAB Cell & Tissue Staining Kit...
CHIMAERIC HUMAN IgA2 ANTI NP...
... Cloning Kit includes the pZErO-2 ... selection in E. coli. The ... to eliminate high background. The ... reagents you need for simple ...
Biology Products: