Navigation Links
Why are there no hyenas in Europe?
Date:9/23/2010

A team from the National Museum of Natural Sciences (CSIC) has analysed the impact of climate change on spotted hyena survival in Europe over 10,000 years ago. These changes played an important role, but the scientists say studies are still needed to look at the influence of human expansion and changes in herbivorous fauna on the definitive extinction of this species across the continent.

"Climate change in the past was not directly responsible for the extinction of the spotted hyena in southern Europe, but it was a factor in its disappearance", Sara Varela, lead author of the study and a researcher at the National Museum of Natural Sciences (CSIC), tells SINC.

According to the study, which has been published in the Journal Quaternary Science Reviews, the hyena populations of Africa and Eurasia became separated during the glacial maximum. And "the climatic conditions in southern Europe 21,000 years ago were extreme for this species", says Varela.

At that time, the European climate was undergoing "drastic" changes, as were herbivorous fauna populations and human expansion. According to the expert, "the survival of the hyenas could have been affected by the combination of these three factors acting in synergy, but not by the action of the climate alone".

Her team studied climate change in the past and identified the most favourable areas for the hyena in Europe, using modelling to look at the various climate scenarios of the Pleistocene. A second model estimated the severity of climate conditions for the survival of these animals. "The climatic conditions in the south of Europe were at all times within the tolerance range of this species", Varela points out.

Everything happened in the late Pleistocene

The spotted hyena (Crocuta crocuta) became extinct at the end of the late Pleistocene (around 10,000 years ago), coinciding with the last glacial maximum and the expansion of Homo sapiens. Large species disappeared forever, but the spotted hyena held out for a while and modified its geographical range in order to survive.

The distribution of the spotted hyena, a carnivore that is common in sub-Saharan Africa, has changed "substantially" from the Pleistocene until the present. Today it is only found in Africa, but during the Pleistocene (almost one million years ago), the spotted hyena also inhabited Eurasia.


'/>"/>

Contact: SINC
info@plataformasinc.es
34-914-251-820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert  

Related biology news :

1. Are there too many stem cell journals?
2. Scientists show theres nothing boring about watching paint dry
3. For pandas, there is a mountain high enough, there is a valley low enough
4. Research concludes there is no simple theory of everything inside the enigmatic E8
5. African bird discovery proves there is something new under the sun
6. Chubby birds get there faster
7. There may be a party in your genes
8. All tied up: Tethered protein provides long-sought answer
9. Disordered amino acids may really be there to provide wiggle room for signaling protein
10. Is there a relationship between sleep-wake rhythm and diabetes?
11. Where theres wildfire smoke, theres toxicity
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Why are there no hyenas in Europe?
(Date:6/3/2016)... Das DOTM (Department ... hat ein 44 Millionen $-Projekt ... einschließlich Personalisierung, Registrierung und IT-Infrastruktur, an Decatur ... Implementierung von Identitätsmanagementlösungen. Zahlreiche renommierte internationale Anbieter ... aber Decatur wurde als konformste und innovativste ...
(Date:6/1/2016)... Favorable Government Initiatives Coupled With ... Identification to Boost Global Biometrics System Market Through 2021  ... report, " Global Biometrics Market By Type, By ... 2011 - 2021", the global biometrics market is projected ... of growing security concerns across various end use sectors ...
(Date:5/12/2016)... 2016 WearablesResearch.com , a brand of ... results from the Q1 wave of its quarterly wearables ... consumers, receptivity to a program where they would receive ... insurance company. "We were surprised to see ... Michael LaColla , CEO of Troubadour Research, "primarily because ...
Breaking Biology News(10 mins):
(Date:6/27/2016)...  Liquid Biotech USA , ... Sponsored Research Agreement with The University of Pennsylvania ... cancer patients.  The funding will be used to ... clinical outcomes in cancer patients undergoing a variety ... employed to support the design of a therapeutic, ...
(Date:6/24/2016)... ... June 24, 2016 , ... Researchers at the Universita ... miRNAs in people with peritoneal or pleural mesothelioma. Their findings are the subject of ... now. , Diagnostic biomarkers are signposts in the blood, lung fluid or tissue ...
(Date:6/23/2016)... 2016 A person commits a crime, and the ... track the criminal down. An outbreak of foodborne ... Administration (FDA) uses DNA evidence to track down the bacteria ... far-fetched? It,s not. The FDA has increasingly used a complex, ... foodborne illnesses. Put as simply as possible, whole genome sequencing ...
(Date:6/23/2016)... --  EpiBiome , a precision microbiome engineering company, today ... from Silicon Valley Bank (SVB). The financing will allow ... drug development efforts, as well as purchase additional lab ... been an incredible strategic partner to us – one ... provide," said Dr. Aeron Tynes Hammack , EpiBiome,s ...
Breaking Biology Technology: