HOME >> BIOLOGY >> NEWS
Small species back-up giant marsupial climate change extinction claim

Thinking small in a time when everything was big has helped Queensland researchers to unearth new evidence that climate change, instead of humans, was responsible for wiping out Australian giant marsupials or megafauna 40,000 years ago.

Instead of only excavating 'trophy specimens' such as giant kangaroos and wombats, the researchers from Queensland University of Technology (QUT) and Queensland Museum performed the first systematic analysis of a site in the fossil rich Darling Downs region of south-eastern Queensland.

Reported in the journal Memoirs of the Queensland Museum tomorrow (Tuesday 31 May) they found smaller species, dependent on a wetter environment, had also disappeared.

By systematically analysing a 10 metre deep section of creek bed, the team uncovered 44 species, ranging from land snails, frogs, lizards and small mammals to giant wombats and kangaroos including many species previously unknown to have occurred in the Darling Downs fossil record.

The results suggest that the extinction of Darling Downs megafauna was caused by a massive shift in climate rather than by the arrival of humans who over hunted animals or destroyed habitats by burning the landscape.

The findings, which were unearthed with the help of amateur fossil hunter, Ian Sobbe, are of particular significance because the Darling Downs fossil deposits are among the youngest Australian megafauna deposits - laid down on the cusp of the extinction event.

PhD researcher Gilbert Price, of QUT's School of Natural Resource Science who led the study, says:

"Unravelling the cause of the late Ice Age extinction has occupied scientists for centuries. It is essential to know if the risks faced by species and ecosystems today are the same as those in the past.

"If we can document past environmental change and its influence on the extinction of species, it might have predictive value in estimating the effects of possible future cli
'"/>

Contact: Judith H Moore
jh.moore@qut.edu.au
61-7-3864-2130
Research Australia
30-May-2005


Page: 1 2 3

Related biology news :

1. Small molecules may explain psoriasis
2. Small, self-controlled planes combine plant pathology and engineering
3. Small-scale agricultural changes may help eradicate widespread disease
4. Smallpox outbreak: How long would it take for vaccines to protect people? Would it work?
5. Small molecule derived from Rb2/p130 could act as cancer therapeutic
6. Small molecule offers big hope against cancer
7. Small, smaller, smallest -- The plight of the vaquita
8. Small-scale logging leads to clear-cutting in Brazilian Amazon
9. Small, but mighty
10. Small molecule interactions were central to the origin of life
11. Smallest Triceratops skull ever found provides clues to dinosaurs growth

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/16/2017)... N.J. , May 16, 2017  Veratad Technologies, ... provider of online age and identity verification solutions, announced ... K(NO)W Identity Conference 2017, May 15 thru May 17, ... Regan Building and International Trade Center. ... the globe and in today,s quickly evolving digital world, ...
(Date:4/24/2017)... April 24, 2017 Janice Kephart ... with  Identity Strategy Partners, LLP (IdSP) , today ... without President Trump,s March 6, 2017 Executive ... , refugee vetting can be instilled with greater confidence, ... now, all refugee applications are suspended by until ...
(Date:4/17/2017)... , April 17, 2017 NXT-ID, Inc. ... company, announces the filing of its 2016 Annual Report on Form ... Exchange Commission. ... Form 10-K is available in the Investor Relations section of the ... on the SEC,s website at http://www.sec.gov . 2016 ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... ... its endogenous context, enabling overexpression experiments and avoiding the use of exogenous expression ... guides is transformative for performing systematic gain-of-function studies. , This complement to ...
(Date:10/11/2017)... ... October 11, 2017 , ... Proscia Inc ... hosting a Webinar titled, “Pathology is going digital. Is your lab ready?” with ... adoption best practices and how Proscia improves lab economics and realizes an increase ...
(Date:10/11/2017)... ... October 11, 2017 , ... Disappearing forests and increased emissions are the ... million people each year. Especially those living in larger cities are affected by air ... one of the most pollution-affected countries globally - decided to take action. , “I ...
(Date:10/10/2017)... ... October 10, 2017 , ... San Diego-based team building and cooking ... initiative announced today. The bold new look is part of a transformation to ... into a significant growth period. , It will also expand its service offering from ...
Breaking Biology Technology:
Cached News: