Navigation Links
'Trophic cascades' of disruption may include loss of woolly mammoth, saber-toothed cat
Date:6/30/2010

es, cougars and other predators around the world. The hunting of whales in the last century may have led to predatory killer whales turning their attention to other prey such as seals and sea otters - and the declines in sea otter populations has led to an explosion of sea urchins and collapse of kelp forest ecosystems.

"In the terrestrial realm, it is important that we have a better understanding of how Pleistocene ecosystems were structured as we proceed in maintaining and restoring today's ecosystems," the researchers wrote in their conclusion. "In the aquatic realm, the Earth's oceans are the last frontier for megafaunal species declines and extinctions."

"The tragic cascade of species declines due to human harvesting of marine megafauna happening now may be a repeat of the cascade that occurred with the onset of human harvesting of terrestrial megafauna more than 10,000 years ago. This is a sobering thought, but it is not too late to alter our course this time around in the interest of sustaining Earth's ecosystems."


'/>"/>

Contact: William Ripple
bill.ripple@oregonstate.edu
541-737-3056
Oregon State University
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. University of Chicago launches research program in catastrophic deformation
2. Researchers call for nitrogen and phosphorus reductions to combat eutrophication in aquatic systems
3. UMMS researchers isolate first neuroprotective gene in patients with amyotrophic lateral sclerosis
4. Dirty snow causes early runoff in Cascades, Rockies
5. City birds better than rural species in coping with human disruption
6. Study shows how disruption of spectrin-actin network causes lens cells in the eye to lose shape
7. Stem-cell disruption induces skull deformity, UR study shows
8. Key to using local resources for biomass may include waste
9. Macadamia nuts can be included in heart healthy diet
10. The MDS Foundation supports the FDAs decision to expand vidaza label to include survival data
11. New book includes advances in the science and practice of transfusion and transplantation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/27/2014)... might have survived the asteroid strike that wiped them ... later in history, scientists say. , A fresh study ... helped palaeontologists to build a new narrative of the ... They found that in the few million years before ... was experiencing environmental upheaval. This included extensive volcanic activity, ...
(Date:7/27/2014)... have shown the potential for global climate change to ... most part, ignored the interactions between increasing temperature and ... to damage crops. , A new study involving researchers ... significant, suggesting that policymakers need to take both warming ... , The study looked in detail at global production ...
(Date:7/25/2014)... the first broad-scale estimate of air pollution removal by ... that trees are saving more than 850 human lives ... symptoms. , While trees, pollution removal equated to an ... the impacts of that improvement are substantial. Researchers valued ... at nearly $7 billion every year in a study ...
Breaking Biology News(10 mins):Dinosaurs fell victim to perfect storm of events, study shows 2Study: Climate change and air pollution will combine to curb food supplies 2Study: Climate change and air pollution will combine to curb food supplies 3First national study finds trees saving lives, reducing respiratory problems 2
... of coastal restoration, The Nature Conservancy and a team of ... institutions led by the University of Cambridge conducted an in-depth ... the actual biomass (the "living weight") of oyster reefs in ... ,Historical ecology with real numbers, published today in Proceedings ...
... science rushes to develop safe weight loss drugs, a new ... What if there were a pill that would make you ... new research report appearing online in The FASEB Journal ... team of Swiss researchers found that when a hormone in ...
... Yuh Nung Jan, PhD, of the Howard Hughes Medical ... jointly receive the 2012 Neuroscience Prize of The Gruber ... to the field of molecular neurobiology, particularly their pioneering ... and on how brain cells diversify and specialize during ...
Cached Biology News:New report puts real numbers behind history of oyster reefs 2Don't feel like exercise? Scientists find compound that may help you work out harder 2UCSF pair win Gruber Foundation Neuroscience prize 2UCSF pair win Gruber Foundation Neuroscience prize 3UCSF pair win Gruber Foundation Neuroscience prize 4
(Date:7/28/2014)... 2014 According to ... (Consumables, Instruments, Services), Methods (Phenotypic, Genotypic), Applications (Pharmaceutical, Diagnostic, ... Characterization) - Global Forecasts to 2019" published ... estimated at $896.5 Million in 2014 and ... 2019, growing at a CAGR of 5.9% ...
(Date:7/28/2014)...   Propeller Health , the FDA-cleared digital health ... Brad Towle as Senior Vice President, Business ... the company,s sales growth, customer acquisition and program expansion. ... his past role in the development of accountable care ... pivotal time in the industry," said David Van ...
(Date:7/28/2014)... The global market for biotechnology is expected ... a new study by Grand View Research, Inc. Increasing ... vaccines and drugs in an attempt to improve healthcare ... to drive market demand over the next six years. ... the use of genetically engineered seeds is expected to ...
(Date:7/28/2014)... DUBLIN , July 28, 2014 Research ... "Global Particle Size Analysis Market 2014-2018" report to their ... Particle size analysis is a technique used to determine ... powder or liquid. It is crucial to analyze the size ... material. Therefore, particle size analysis is performed to determine the ...
Breaking Biology Technology:Microbial Identification Market worth $1,194.1 Million by 2019 2Microbial Identification Market worth $1,194.1 Million by 2019 3Propeller Health Hires Brad Towle as Senior Vice President of Business and Client Development 2Global 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 4Global Particle Size Analysis Market 2014-2018 2
... Drive Value from Appraisals, OTTAWA, March 17 ... web-based employee performance and talent management software,today announced ... provide a system,for its employees at the company,s ... 5000 franchise restaurants, designed for today,s,busy consumers who ...
... Support of National Electronic Disease ... Surveillance System, ... ) announced today that it has been awarded a,task order from ... supporting the National Electronic Disease,Surveillance System (NEDSS) Base System (NBS). The ...
... risk ... for colorectal cancer-, TORONTO, ... on developing molecular diagnostic tests derived from a,simple blood sample ... announced that its abstract describing the,performance of the Company,s six-gene ...
Cached Biology Technology:Quiznos Selects Halogen for Fresh Approach to Talent Management 2CSC Continues Support of Centers for Disease Control and Prevention Through New Task Order 2GeneNews selected to present late-breaking abstract at AACR Annual Meeting 2
... evolutionarily conserved form of cell suicide, which ... central component of this process is a ... These enzymes participate in a series of ... pro-apoptotic signals and result in the cleavage ...
...
...
Mouse monoclonal antibody raised against a partial recombinant ALAS2. NCBI Entrez Gene ID = ALAS2...
Biology Products: