Navigation Links
Bering Sea study finds prey density more important to predators than biomass
Date:1/3/2013

d kittiwakes at St. Paul, St. George and Bogoslof Islands. The birds would capture local prey to feed their chicks during the day, but make numerous long flights at night to gorge on energy-rich, deep-water prey before returning to their nests to feed their chicks.

"It is a trade-off strategy," said Benoit-Bird, a 2010 recipient of a MacArthur Fellowship. "They feed themselves in one place and nourish their offspring from another."

This concept of prey "patchiness" can change rapidly, the researchers noted. Pollock aggregated only when the number of individuals in an area reached a certain threshold; below that threshold, they swam as individuals.

"If the population is sufficiently diffuse, the pollock don't aggregate and that could spell trouble for species that prey upon them," Heppell said. "A 10 percent shift in the number of fish could change how the entire stock behaves and have a major impact on the birds, seals and other predators."


'/>"/>

Contact: Kelly Benoit-Bird
kbenoit@coas.oregonstate.edu
541-737-2063
Oregon State University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Big brains are pricey, guppy study shows
2. Hebrew University study finds key mechanism in calcium regulation
3. New study documents the natural relationship between CO2 concentrations and sea level
4. Stowers study hints that stem cells prepare for maturity much earlier than anticipated
5. Birdsong study pecks theory that music is uniquely human
6. Study turns parasite invasion theory on its head
7. Gout study offers genetic insight into disease of kings
8. Native orchid protection and conservation subject of new AgriLife Research study
9. Cell Transplantation study investigates fate and function of cells transplanted to the CNS
10. Study reports iron oxide nanoparticles effective for labeling human endothelial cells
11. Study looks at gray seal impact on beach water quality
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Bering Sea study finds prey density more important to predators than biomass
(Date:10/19/2014)... India over the last 30 years contributed only ... during that time, according to a new study ... ., "Energy access is fundamental to development: it ... education, communication, and health," says IIASA researcher Shonali ... energy access is widely agreed to be an ...
(Date:10/18/2014)... undiagnosed, suspected genetic conditions, a certain type of exome ... yield than traditional molecular diagnostic methods, according to a ... being released to coincide with the American Society of ... the protein­coding region of the genome (the complete set ... or organism), has been rapidly applied in research settings ...
(Date:10/17/2014)... University of Copenhagen have shown for the first time ... Cystic fibrosis patients, giving them the opportunity to get ... infections. , The study also discovered the bacterial growth ... was halted or slowed down by the immune cells. ... oxygen and helped "suffocate" the bacteria, forcing the bacteria ...
Breaking Biology News(10 mins):Improved electricity access has little impact on climate change 2Study examines type of exome sequencing and molecular diagnostic yield 2Study examines type of exome sequencing and molecular diagnostic yield 3Scientists opens black box on bacterial growth in cystic fibrosis lung infection 2
... This release is available in Spanish . ... ozone levels above 50 parts per billion (ppb) along the ... costing more than $1 billion in lost crop production, according ... a 5-year study led by the National Aeronautics and Space ...
... ITHACA, N.Y. Losing weight without a grumbling stomach or ... lighter lunch, finds a new Cornell University study to be ... . Participants who ate portion-controlled lunches did not compensate ... to believe the human body does not possess the mechanisms ...
... higher-protein, lower-carbohydrate energy-restricted diet has a major positive impact ... muscle, particularly when the proteins come from dairy products. ... the Journal of Nutrition, compared three groups ... Each consumed either low, medium or high amounts ...
Cached Biology News:Monitoring ground-level ozone from space 2Foods rich in protein, dairy products help dieters preserve muscle and lose belly fat: study 2
(Date:10/20/2014)... Inc. (TSXV: BRM) ("Biorem" or "the Company") today announced four new ... and provides a good start to Q4.  The orders are for ... and one in the Middle East . ... Peter Bruijns , President & CEO. "Total bidding activity and ... have been for any complete year since the company has tracked ...
(Date:10/20/2014)... 2014 OncLive® is ... Center at Thomas Jefferson University has joined its ... Strategic Alliance Partnership program, the Sidney Kimmel Cancer ... raise awareness of the Center’s cutting-edge research programs, ... Clinicians and other health care professionals from the ...
(Date:10/19/2014)... OCTOBER 20-22, 2014: The 9th Annual ... take place at the Congress Center Basel, ... now available at http://www.abim.ch . ... from all over the globe will exchange ... products and developments on the world market. ...
(Date:10/19/2014)... October 19, 2014 The Asia-Pacific Speech ... market in Asia-Pacific with analysis and forecast of revenue. ... in 2014 to $208 million by 2019, at a ... to 2019. , Browse through the TOC of the ... of the in-depth analysis provided. It also provides a ...
Breaking Biology Technology:Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 2The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 4
... and ALACHUA, Fla., Sept. 4 ,Zimmer Holdings, Inc. ... in the orthopaedics,industry, and Tutogen Medical, Inc., a ... human (allograft) and animal,(xenograft) tissue, today announced the ... wholly owned subsidiary of Zimmer Holdings,Inc., into Europe, ...
... Ind., Sept. 4 ,Tutogen Medical, Inc. (Amex: ... products made from human (allograft) and animal,(xenograft) tissue, ... a leader,in the orthopaedics industry, today announced the ... wholly owned subsidiary of Zimmer,Holdings, Inc., into Europe, ...
... to Present at BioCentury,s Newsmakers in the Biotech,Industry, Bank of America ... ... Conferences, SEATTLE, Sept. 4 Trubion Pharmaceuticals,Inc. ... executive officer, and chairman of Trubion, will present an overview,of the ...
Cached Biology Technology:Zimmer and Tutogen Announce Agreement for International Distribution of Biological Products 2Zimmer and Tutogen Announce Agreement for International Distribution of Biological Products 3Zimmer and Tutogen Announce Agreement for International Distribution of Biological Products 4Zimmer and Tutogen Announce Agreement for International Distribution of Biological Products 5Tutogen Medical, Inc. and Zimmer Holdings, Inc. Announce Agreement for International Distribution of Biological Products 2Tutogen Medical, Inc. and Zimmer Holdings, Inc. Announce Agreement for International Distribution of Biological Products 3Tutogen Medical, Inc. and Zimmer Holdings, Inc. Announce Agreement for International Distribution of Biological Products 4Tutogen Medical, Inc. and Zimmer Holdings, Inc. Announce Agreement for International Distribution of Biological Products 5Trubion Pharmaceuticals to Present at Upcoming Investor Conferences 2
... a tetramethylrhodamine-conjugated jetSI-ENDO (excitation at ... nm), the powerful siRNA transfection ... to determine the transfection efficiency ... and trafficking of siRNAs. More ...
... movement counts, similar to an infrared beam break ... subjects at once, in two frames of reference, ... experimental group at once, and allow social interaction ... a variety of other spatial behavior situations, including ...
... a score of movement counts, similar to an ... up to 6 subjects at once, in two ... Can outpt a sync pulse to coordinate with ... animal location and timing information to control arena ...
... features of Tracker, plus software to note when ... of the arena, and trigger a penaltyThe Spatial ... built around a video camera, frame grabber, and ... fields at once and up to 6 moving ...
Biology Products: