Navigation Links
Snakes minus birds equals more spiders for Guam
Date:9/13/2012

HOUSTON -- (Sept. 13, 2012) -- In one of the first studies to examine how the loss of forest birds is effecting Guam's island ecosystem, biologists from Rice University, the University of Washington and the University of Guam found that the Pacific island's jungles have as many as 40 times more spiders than are found on nearby islands like Saipan.

"You can't walk through the jungles on Guam without a stick in your hand to knock down the spiderwebs," said Haldre Rogers, a Huxley Fellow in Ecology and Evolutionary Biology at Rice and the lead author of a new study this week in the open-access journal PLOS ONE.

The results are some of the first to examine the indirect impact of the brown treesnake on Guam's ecosystem. The snake, which was accidentally introduced to the island in the 1940s, decimated the island's native bird species in one of the most infamous ecological disasters from an invasive species. By the 1980s, 10 of 12 native bird species had been wiped out, and the last two live only in small areas protected by intense snake-trapping.

Rogers and colleagues are investigating whether the loss of birds led to an increase in the spider population on Guam, since many birds consume spiders, compete with spiders for insect prey and utilize spider webs in their nests. Small-scale experiments in other ecosystems have consistently shown a link between the presence of birds and the abundance of spiders, but the new study is the first examine the impact of bird loss on the scale of an entire forest.

Counting spider webs on Guam and on nearby islands in the Marianas Islands chain was the first step. Rogers said the difference between the number of spiders she and her colleagues counted on Guam and three nearby islands that still have birds "was far more dramatic than what any small-scale experiments had previously found." She said the findings underscore the importance of using both observed counts and controlled experiments
'/>"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Scientists discover new type of virus responsible for a devastating disease in snakes
2. Big-mouthed babies drove the evolution of giant island snakes
3. Robosquirrels versus rattlesnakes
4. New paper examines poison resistance in snakes around the world
5. Climate change could increase levels of avian influenza in wild birds
6. Native plants in urban yards offer birds mini-refuges
7. For young birds, getting stressed out can be a good thing
8. Birds do better in agroforests than on farms
9. Birds that live with varying weather sing more versatile songs
10. Its a bird, not a plane: York U study finds migrating songbirds depart on time
11. Fossil egg discovered in Lleida (Spain) links dinosaurs to modern birds
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Snakes minus birds equals more spiders for Guam
(Date:7/28/2014)... disease and other forms of dementia, but the research ... University of Washington bioengineers have a designed a peptide ... body,s normal proteins into a state that,s linked to ... 2 diabetes and Lou Gehrig,s disease. The synthetic molecule ... state into an abnormally folded form by targeting a ...
(Date:7/28/2014)... identified areas of the Earth that are high priorities ... Europe is particularly vulnerable, as it has the lowest ... of any continent in ,refugia, areas of biological ... remain relatively constant during times of great environmental change. ... in Scandinavia and Scotland. , The biggest refugia ...
(Date:7/28/2014)... Research Hospital study found that 73 percent of adult ... of developing metabolic syndrome and related health problems by ... in the current issue of the journal Cancer ... survivors of childhood cancer in the study had metabolic ... high blood pressure, abdominal obesity, elevated triglyceride and other ...
Breaking Biology News(10 mins):New protein structure could help treat Alzheimer's, related diseases 2New protein structure could help treat Alzheimer's, related diseases 3Study finds Europe's habitat and wildlife is vulnerable to climate change 2Unhealthy habits more than double risk of metabolic syndrome in childhood cancer survivors 2Unhealthy habits more than double risk of metabolic syndrome in childhood cancer survivors 3
... University of Alaska Fairbanks scientist Michael Whalen is part of ... swath of evidence striking a definitive blow in the ongoing ... published in the March 5 issue of the journal ... that an asteroid ended the age of the dinosaurs. ...
... microbial genomes have been sequenced at various sequencing centers ... roles in tasks ranging from bioenergy to health to ... will be publicly available within the next two years, ... technological advances that have made the sequencing process faster ...
... Researchers working with Professor Gudrun Rappold, Director of ... Hospital, have discovered previously unknown mutations in autistic and ... SHANK2 gene, a gene that is partially responsible for ... not always enough to trigger the illness. In some ...
Cached Biology News:Scientists conclude asteroid ended the age of dinosaurs 2DOE JGI produces new QC tool for microbial genomes 2DOE JGI produces new QC tool for microbial genomes 3DOE JGI produces new QC tool for microbial genomes 4Newly discovered gene variants lead to autism and mental retardation 2
(Date:7/28/2014)... 28, 2014  David Hardison, Ph.D., vice president ... , has been elected chairman of the board ... non-profit working to establish common protocols around the ... relates to electronic health records. ... collaborating with organizations across the research and health ...
(Date:7/28/2014)... 28, 2014 The global market for ... 2020, according to a new study by Grand View ... demand for effective vaccines and drugs in an attempt ... needs is expected to drive market demand over the ... agricultural productivity via the use of genetically engineered seeds ...
(Date:7/26/2014)... 2014 Canada Endoscopy Visualization Systems ... on the Canada Endoscopy Visualization Systems market. The ... volume (in units) and average prices (in US ... Systems, Mid-Range Endoscopy Visualization Systems and Low-End Endoscopy ... http://www.marketresearchreports.biz/analysis/213254 . , The report also provides company ...
(Date:7/25/2014)... 2014 Research and Markets  has ... Market 2014-2018" report to their offering. ... Metabolomics or Metabonomics is the scientific study of ... new experimental technique that is being widely used ... are small molecules that are present in blood, ...
Breaking Biology Technology:ConvergeHEALTH by Deloitte's David Hardison Named Chairman of the Clinical Data Interchange Standards Consortium 2ConvergeHEALTH by Deloitte's David Hardison Named Chairman of the Clinical Data Interchange Standards Consortium 3Global Biotechnology Market Worth $604.40 Billion by 2020: Grand View Research, Inc 2Global Biotechnology Market Worth $604.40 Billion by 2020: Grand View Research, Inc 3Global Biotechnology Market Worth $604.40 Billion by 2020: Grand View Research, Inc 4Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 2Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 3Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 4Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 5Global Metabolomics Market 2014-2018: Key Vendors are Agilent, Bio-Rad, Bruker, Human Metabolome and Metabolon 2
... /PRNewswire-FirstCall/ - Angiotech Pharmaceuticals,Inc. (NASDAQ: ANPI , ... company, announced the resignation of Greg Peet from ... Mr. Peet has resigned,to enable him to focus ... Mr. Peet has served on Angiotech,s Board of ...
... April 15 Vion,Pharmaceuticals, Inc. (Nasdaq: VION ) ... and sustain compliance with The Nasdaq Capital Market,listing requirements, ... Previously, the Company announced that it had received ... Market, Inc., notifying the Company,that it does not comply ...
... /PRNewswire-FirstCall/ - Oncolytics Biotech Inc.,(TSX: ONC, NASDAQ: ONCY) ... of the Tom Baker Cancer Centre, Calgary, entitled,"Targeting ... at the American Association for Cancer Research (AACR) ... Diego, California from April,12-16, 2008., The presentation ...
Cached Biology Technology:Vion Pharmaceuticals Files Plan With Nasdaq 2Vion Pharmaceuticals Files Plan With Nasdaq 3Oncolytics Biotech Inc. Collaborators Present Reovirus Research for Multiple Myeloma at AACR Annual Meeting 2
... 100 g of monoclonal antibody reactive against ... of SURF1 are highest in growing cultured cells. ... c oxidase which is thought to participate in ... insertion into this subunit. Mutations of SURF1, particularly ...
... (Thr183/Tyr185) Antibody Kit Kit Includes: ... #9251, 200 ul SAPK/JNK (56G8) Rabbit ... Cell Extracts, Catalog #9253, (4 Western ... #7074, 100 ul Anti-biotin IgG, HRP-linked ...
100 g monoclonal antibody which can immunocapture ~10 g of Complex IV from heart mitochondria. Also included are 2 mg of bovine heart mitochondria for control immunocapture....
Anti-gp120/160(SIV/mac239) Immunogen: gp120(SIV/mac239) protein (Genebank accession #M33262)...
Biology Products: