Navigation Links
Dietary flexibility may have helped some large predators survive after last ice age
Date:5/8/2013

extent.

The study found that the diets of the large cats were similar in different locations, especially in the post-glacial period. Wolves and bears, in contrast, ate different things in different locations. Prey species on the mammoth steppes included bison, horses, yaks, musk oxen, caribou, and mammoths. The researchers noticed changes in predator diets coinciding with an increase in caribou abundance starting around 20,000 years ago.

"During and after the last glacial maximum, many predators focused their attention on caribou, which had been a marginally important prey resource before then," Yeakel said. "Large cats began concentrating almost solely on caribou in both Alaska and Europe. Wolves and bears also began consuming more caribou in Alaska, but not in Europe."

The cave lions and saber-toothed cats of the mammoth steppes were morphologically similar to modern lions, but they went extinct within the past 10,000 years. There were bears similar to modern bears, as well as the short-faced bear, which was larger than a polar bear and has since gone extinct. Interestingly, the short-faced bear is the only species that did not focus on caribou in the post-glacial period.

After the last ice age, a growing human population coincided with the demise of the mammoths and other large fauna of the mammoth steppes. Many species are still around, however, including wolves and bears. According to Yeakel, studies of past ecosystems can inform scientists' understanding of modern carnivores and their capabilities.

"If you look at wolves today, they are specialist carnivores preying on large herbivores like deer and elk, but when we look in the fossil record we see that wolves are remarkably flexible. Their environment today is fairly artificial compared to when they evolved," he said.

The study found that large-scale patterns of interactions differed between locations, but remained stable over time. In Alaska, there was
'/>"/>

Contact: Tim Stephens
stephens@ucsc.edu
831-459-2495
University of California - Santa Cruz
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Zebrafish research shows how dietary fat regulates cholesterol absorption
2. Neuroprotective dietary supplements for chronic spinal cord injury
3. Research provides new insights into dogs natural feeding behavior and finds they target a daily dietary intake that is high in fat
4. New health-economic model shows benefits of boosting dietary calcium intake
5. Dietary shifts driving up phosphorus use
6. International study: Excess dietary salt may drive the development of autoimmune diseases
7. Canadians support interventions to reduce dietary salt
8. National survey highlights perceived importance of dietary protein to prevent weight gain
9. 2001-2002 drought helped propel mountain pine beetle epidemic, says CU study
10. Building the European Unions Natura 2000 -- the largest ever network of protected areas
11. Interventional radiology: Potential breakthrough to treat mens enlarged prostate
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/23/2015)... -- Aware, Inc. (NASDAQ: AWRE ), a leading supplier ... its second quarter ended June 30, 2015.  ... a decrease of 33% compared to $6.8 million in the ... of 2015 was $0.3 million, or $0.01 per diluted share, ... in the same period a year ago.  ...
(Date:7/21/2015)... Today, ZTE announced its Android smartphone Axon, ... expected revenues in 2015 that relate to sales of FPC1025 for ... approximately 2,200 MSEK for 2015. Jörgen Lantto, CEO of ... in China and we are proud that ... for Axon , its first ...
(Date:7/21/2015)... , July 21, 2015 Passwords have ... seen in the recent U.S. Office of Personnel ... to the infosec conundrum, but developers and end-users ... To address this dilemma, Biometrics-as-a-Service provider HYPR Corp. ... Tokenization SDK for third party integration. ...
Breaking Biology News(10 mins):Aware, Inc. Reports Second Quarter 2015 Financial Results 2Aware, Inc. Reports Second Quarter 2015 Financial Results 3Aware, Inc. Reports Second Quarter 2015 Financial Results 4Aware, Inc. Reports Second Quarter 2015 Financial Results 5Aware, Inc. Reports Second Quarter 2015 Financial Results 6FPC's Touch Fingerprint Sensor FPC1025 in ZTE's Smartphone Axon 2HYPR Corp. Launches Industry First Biometric Tokenization Platform 2HYPR Corp. Launches Industry First Biometric Tokenization Platform 3HYPR Corp. Launches Industry First Biometric Tokenization Platform 4
... Colo., USA - The February 2014 Lithosphere ... travertine in the Rio Grande rift, central New Mexico; ... Australia; the first lithosphere-scale illustration of the structural evolution ... formation; evaluation of the central Garlock fault in Pilot ...
... David Allis, a pioneer in the field of epigenetics whose ... role in regulating the activity of individual genes, will be ... by the Japan Prize Foundation, was made at a press ... approximately half a million dollars, is among the most prestigious ...
... Institute,s Illinois Natural History Survey have found that overall, concentrations ... from the lower Illinois River do not appear to be ... The full results of the study have been published in ... mercury concentration in fillets was below the US Food and ...
Cached Biology News:Rio Grande fift, Rum Jungle complex, Black Sea, West Africa craton, California faults 2Rio Grande fift, Rum Jungle complex, Black Sea, West Africa craton, California faults 3Rio Grande fift, Rum Jungle complex, Black Sea, West Africa craton, California faults 4Rio Grande fift, Rum Jungle complex, Black Sea, West Africa craton, California faults 5David Allis, pioneer in epigenetics, to receive prestigious Japan Prize 2Research shows arsenic, mercury and selenium in Asian carp not a health concern to most 2
(Date:7/28/2015)... 2015 Deerfield Management Company, L.P. today announced ... which will invest in groundbreaking advancements in science that ... and orphan diseases. The venture capital fund will also ... developed and improve the way healthcare is delivered to ... healthcare-focused venture funds in the sector, will donate all ...
(Date:7/28/2015)... OF PRUSSIA, Pa. , July 28, 2015 /PRNewswire/ ... U.S. Food and Drug Administration has accepted for review ... investigational recombinant factor VIII single-chain (rVIII-SingleChain) for the treatment ... met all primary endpoints. Hemophilia ... deficient or defective factor VIII; nearly all affected patients ...
(Date:7/27/2015)... , July 27, 2015  Amgen (NASDAQ: AMGN ... quarter financial results on Thursday, July 30, 2015, after ... will be followed by a conference call with the ... call from Amgen will be Robert A. Bradway ... of Amgen,s senior management team. Live audio ...
(Date:7/27/2015)... ... July 27, 2015 , ... ... solutions, today announced a new video: 3 Ways to GHS Labels . ... Standard and the Globally Harmonized System (GHS) by effectively labeling chemical containers. , ...
Breaking Biology Technology:Deerfield Launches $550 Million Healthcare Venture-Capital Fund 2Deerfield Launches $550 Million Healthcare Venture-Capital Fund 3U.S. FDA Accepts for Review CSL Behring's Biologics License Application for Its Novel rVIII-SingleChain Therapy for Patients with Hemophilia A 2U.S. FDA Accepts for Review CSL Behring's Biologics License Application for Its Novel rVIII-SingleChain Therapy for Patients with Hemophilia A 3Amgen Announces Webcast of 2015 Second Quarter Financial Results 2Brady Releases “3 Roads to GHS Labels” Video 2
... ... company,s eCTD solution suite offering users a standalone Windows® desktop application for viewing eCTD submissions ... ... provider of electronic regulatory submission solutions for the life sciences industry, today announced the release ...
... time, physicists have convincingly demonstrated that physically separated ... The achievement is analogous to the quantum entanglement ... circuitry instead of photons in optical systems. ... to quantum computing and secure communications, but solid-state ...
... , , , , ... Biosys,Limited, based in Bangalore, an integrated Drug Discovery and Development,solution ... today that it has entered into a co-marketing agreement to,provide ... innovative cell based assay solutions for GPCR, Kinases,NHR and Proteases. ...
Cached Biology Technology:Datafarm Releases New Desktop-based Application for Multi-region Viewing of eCTD Submissions: Datafarm VUE 2DiscoveRx Corp. & Jubilant Biosys Limited Announce Co-Marketing Agreement for Screening Services 2DiscoveRx Corp. & Jubilant Biosys Limited Announce Co-Marketing Agreement for Screening Services 3
... N. Fernandez and G. Butcher (1998). • ... of much research in the immunology area. ... of MHC proteins and in their function ... now faced with the prospect of tackling ...
delta-like 1 homolog (Drosophila)...
ELISpot kit for human Granzyme B. Kits contain PVDF plates, capture & detection antibodies, streptavidin-ALP, BSA, Skimmed dry milk, BCIP/NTB substrate, and wash buffer...
SHEEP ANTI ECHIS OCCELATUS (VENOM)...
Biology Products: