Navigation Links
Loss of top animal predators has massive ecological effects
Date:7/14/2011

" the ecological consequences of losing large apex consumers from nature causes extensive cascading effects in ecosystems worldwide, especially when exacerbated by factors such as land use practices, climate changes, habitat loss, and pollution.

"Our review of existing studies clearly shows that a top-down cascading effect in natural systems is both powerful and widespread," said Dr. Estes. "There is an urgent need for interdisciplinary research to forecast how a continued loss of top level consumers will further harm the planet's ecosystems."

This paper documents some of the negative effects that the widespread loss of these animals has already had on Earth's biosphere, climate, biodiversity, and vegetation:

  • The reduction of lions and leopards from areas of sub-Saharan Africa caused the baboon population to swell. This unexpectedly increased transmission of intestinal parasites from baboons to humans as the primates were forced to forage closer to human settlements.
  • As large ungulates recovered from a devastating rinderpest epidemic in the Serengeti in Africa, herbivory increased, and the frequency of wildfire declined in that region. Wildfire frequency increased following the late Pleistocene/early Holocene decline of megaherbivores in Australia and the northeastern United States.
  • Industrial whaling in the 20th century resulted in the loss of large numbers of plankton-consuming great whales, which are now known to sequester carbon into the deep sea through deposition of feces. The result has been the transfer of approximately 105 million tons of carbon into the atmosphere that would have been absorbed by whales, contributing to climate change.

"We must assume going forward that significant changes to the ecosystem are occurring when large predators and herbivores are removed from the top of the food web, and, thus, that efforts to manage and conserve nature must include these animals," said Dr. Piki
'/>"/>

Contact: Cindy Yeast
cdyeast@earthlink.net
720-542-9455
Stony Brook University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Long-term study shows effect of climate change on animal diversity
2. Researchers find animal with ability to survive climate change
3. Researchers note differences between people and animals on calorie restriction
4. Earliest animal footprints ever found -- discovered in Nevada
5. Details of evolutionary transition from fish to land animals revealed
6. Drug-embedded microparticles bolster heart function in animal studies
7. Swamping bad cells with good in ALS animal models helps sustain breathing
8. Moderate use averts failure of type 2 diabetes drugs in animal model
9. Grapes may aid a bunch of heart risk factors, animal study finds
10. Animal and biological science highlights: San Antonio Fluid Dynamics Conference, Nov. 23-25
11. Discovery of giant roaming deep sea protist provides new perspective on animal evolution
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Loss of top animal predators has massive ecological effects
(Date:2/24/2015)... Feb. 24, 2015 Research and Markets ... of the "Global 2D Gesture Recognition Market ... The analysts forecast the Global 2D Gesture ... 32.12% over the period 2014-2019 The ... sectors is one of the major trends in ...
(Date:2/12/2015)... , Feb. 12, 2015   MedNet Solutions ... in clinical study management systems, has recently bolstered ... further distinguishing iMedNet as ... Organizations (CROs) and healthcare consultants.  Building on the ... customer referrals and numerous co-marketing opportunities), MedNet,s new ...
(Date:2/5/2015)... , 5. Februar 2015 ... spezialisiertes Logistikunternehmen und hat eine neue Marketingkampagne ... Logistikfirma (Clinical Logistics Organization – CLO) der ... Kampagne lautet First , mit Schwerpunkt ... Foto: http://photos.prnewswire.com/prnh/20150205/173753 Logo ...
Breaking Biology News(10 mins):Global 2D Gesture Recognition Market 2015-2019 with Cognitec Systems, CogniVue, eyeSight Mobile Technologies & PointGrab Dominating 2MedNet Solutions Announces Key Enhancements To Its iMedNet Partner Program 2Marken startet Kampagne mit Patienten im Mittelpunkt 2Marken startet Kampagne mit Patienten im Mittelpunkt 3
... Cancer is not a static disease but during its ... adapting to new environmental circumstances, protecting against chemotherapy and ... Until now little was known about the mechanisms involved ... a particularly intriguing way in which a tumour that ...
... at the University of California, Davis, have demonstrated that forest ... rocks, boosting the trees, growth and their ability to pull ... dioxide is the most important climate-change gas, the nitrogen in ... in the future, the researchers say. They report their findings ...
... Sept 1, 2011) Lincoln Park Zoo applauds the federal government,s ... chimpanzees living in the United States as an endangered species. ... conservation of the species, which is endangered in the wild. ... Nature, wild chimpanzees are severely endangered and could become extinct ...
Cached Biology News:Why cancer cells change their appearance? 2Bedrock nitrogen may help forests buffer climate change, study finds 2Bedrock nitrogen may help forests buffer climate change, study finds 3Lincoln Park Zoo applauds government decision to consider reclassifying chimpanzees as endangered 2
(Date:2/26/2015)... Innovation is more urgent than ... parts of the world and transforming global markets ... manufacturing to health care, disruption is constantly underway. ... socio-political trends shake the foundations of established business ... CEOs to survive the next wave of mega-change. ...
(Date:2/26/2015)... 2015 According to a new market ... For Transgenic Crops (Corn, Soybean, Cotton and Others), Synthetic ... Share, Growth, Trends and Forecast, 2013 – 2019,”the global ... in 2012 and is expected to reach USD 28,694.1 ... from 2013 to 2019. , Demand for food ...
(Date:2/26/2015)... Regis Technologies announced new potent compound ... substances. , Regis Technologies is proud to announce the ... Suite (PCS) for 2015. , Regis is a contract ... in Morton Grove, Illinois. The PCS addition will provide ... to about one kilogram per batch. , Regis’ ...
(Date:2/26/2015)... Tauriga Sciences, Inc. (OTCQB: TAUG) ("Tauriga" or the ... the natural wellness sector and in developing a proprietary ... will be featured at the SEC Compliance sponsor booth ... Annual Growth Stock Conference on March 8-11 th ... Drive, Dana Point , California.  One ...
Breaking Biology Technology:One Million Acts of Innovation Canada Creates Partnership with The Economist Events’ Innovation Forum 2Global Agricultural Biotechnology Market is Expected to Reach USD 28,694.1 Million in 2019 : Transparency Market Research 2Global Agricultural Biotechnology Market is Expected to Reach USD 28,694.1 Million in 2019 : Transparency Market Research 3Regis Extends cGMP Services to Oncology Market 2SEC Compliance Featuring Products From Tauriga Sciences, Inc. at ROTH Capital Conference 2SEC Compliance Featuring Products From Tauriga Sciences, Inc. at ROTH Capital Conference 3SEC Compliance Featuring Products From Tauriga Sciences, Inc. at ROTH Capital Conference 4
... 1 Medarex, Inc.,(Nasdaq: MEDX ) announced today ... shares of Genmab A/S which stock is traded on ... on February 1,2008. Medarex expects to receive approximately $151.8 ... of Genmab shares reduces Medarex,s,ownership in Genmab to approximately ...
... SAN FRANCISCO, Calif., Jan. 31 Rigel,Pharmaceuticals, Inc. (Nasdaq: ... offering of 5,000,000 shares of common stock at a ... being offered by Rigel. The underwriters,have an option to ... if any. The offering is expected to close on ...
... , - ENDORSE Global Findings Highlight the ... Management: Systematically Assess,Patient Risk for VTE and Provide ... study (Epidemiologic International Day for the,Evaluation of Patients ... Care Setting) published today in the LANCET(1) demonstrates ...
Cached Biology Technology:Rigel Announces Pricing of Public Offering of Common Stock 2The LANCET Published ENDORSE, the Largest Multinational Study Showing That the Majority of Hospitalized Patients Surveyed are at Risk for VTE and Many do not Receive Recommended VTE Prophylaxis 2The LANCET Published ENDORSE, the Largest Multinational Study Showing That the Majority of Hospitalized Patients Surveyed are at Risk for VTE and Many do not Receive Recommended VTE Prophylaxis 3The LANCET Published ENDORSE, the Largest Multinational Study Showing That the Majority of Hospitalized Patients Surveyed are at Risk for VTE and Many do not Receive Recommended VTE Prophylaxis 4
Agar, 5 lb. Bacteriological.Moisture: < 10%, ash: < 6.5%. Category: Nucleotides & Enzymes & Biochemicals, Ultrapure Biochemicals ....
Request Info...
... qualitatively detect EGFR gene ... (FFPE) tissue sections, metaphase ... preparations, using Chromogenic In ... In Situ Hybridization (FISH) ...
Request Info...
Biology Products: