Navigation Links
Fossil and molecular evidence reveals the history of major marine biodiversity hotspots
Date:8/6/2008

This press release is available in Spanish.

The journal "Science" has published in the issue of the 1st of August the results of a detailed research work about the evolution of marine diversity all through the last 50 million years. The study has been carried out with the participation of scientists from Australia, Spain, USA, UK, Holland, Malaysia and Panama.

The results obtained prove that the main concentrations of biodiversity have been located in the last 50 million years in a line, from west to east, from southwest Europe and northwest Africa to the Indo-Australian Archipelago, and along the eastern shore of the Arabian Peninsula, Pakistan, and West India.

The researchers, among which is the Professor of the University of Granada (Spain) Juan Carlos Braga, have based this work on the study of the combination of molecular evidence and the fossil record.

At present, the Indo-Australian Archipelago (IAA) is the tropical center of maximum diversity since the Miocene and in the last 20 million years, as the record of large benthic foraminifera, mangrove pollen types, gastropods, and corals has shown.

The research proves the amazing antiquity of the IAA focus, which provides a new understanding of biodiversity hotspots, product of ecological processes operating over geological time scales of millions of years with their timing and locations coinciding with major tectonic events. The birth and death of successive hotspots highlights the link between environmental change and biodiversity patterns..

Vulnerability of coral reef ecosystems

A synthesis of the paleontological and molecular data, interpreted in an ecological context, has enabled the scientists to understand the true antiquity of hotspots and their component species. However, future studies are clearly needed as global threats to marine biodiversity put the spotlight on the vulnerability of coral reef ecosystems.

We now realize that human-induced changes are operating on time scales far removed from those that have created these hotspots. An improved understanding of the nature of biodiversity hotspots, be they terrestrial or marine, will require a clearer understanding of the Geographic and environmental context of taxonomic turnover driving the origination, maintenance, and diminution of hotspots over extensive time scales.


'/>"/>

Contact: Dr. Juan C. Braga
jbraga@ugr.es
Universidad de Granada
Source:Eurekalert

Related biology news :

1. Rare Antarctic fossils reveal extinction of tundra before full polar climate arrived
2. Antarctic fossils paint a picture of a much warmer continent
3. Fossils and layers: Solving the terrane puzzle of the North American cordillera
4. UCSB researcher leads worldwide study on marine fossil diversity
5. New fossil tells twisted tale of how flatfishes ended up with two eyes on one side of head
6. Living fossils have long- and short-term memory
7. Ocean acidification -- another undesired side effect of fossil fuel-burning
8. A fossilized giant rhino bone questions the isolation of Anatolia, 25 million years ago
9. Scientists discover giant fossil frog from hell
10. Impacts of fossil fuels on fish and people
11. Oldest Australian crayfish fossils provide missing evolutionary link
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/27/2017)... 27, 2017  Catholic Health Services (CHS) has ... Society (HIMSS) Analytics for achieving Stage 6 on ... . In addition, CHS previously earned a place ... an electronic medical record (EMR). "HIMSS ... of EMR usage in an outpatient setting.  This ...
(Date:3/24/2017)... Research and Markets has announced the addition ... Trends - Industry Forecast to 2025" report to their offering. ... The Global Biometric ... of around 15.1% over the next decade to reach approximately $1,580 ... market estimates and forecasts for all the given segments on global ...
(Date:3/23/2017)... Research and Markets has announced the addition of the ... to 2025" report to their offering. ... The Global Vehicle Anti-Theft System Market ... the next decade to reach approximately $14.21 billion by 2025. ... for all the given segments on global as well as regional ...
Breaking Biology News(10 mins):
(Date:3/27/2017)... ... March 27, 2017 , ... ... generally produce small, heterogeneous samples with limited tumor content in a large background ... be resolved, such as the need for reliable detection of low abundance somatic ...
(Date:3/27/2017)... Md. , March 27, 2017  The ... billion for 2016, according to a new report ... medical lab testing is performed to evaluate disease ... individual therapy, among other reasons.  The healthcare market ... Market , provides an overview of the ...
(Date:3/27/2017)... DUBLIN , March 27, 2017 ... access to a comprehensive library of reports on Valero ... the transportation fuels and petrochemical industries. ...      (Logo: http://photos.prnewswire.com/prnh/20160330/349511LOGO) ... is biofuel production to go green. Ethanol today, even though ...
(Date:3/27/2017)... ... March 27, 2017 , ... A research ... customizable vascular grafts in JoVE’s Video Journal, the world’s first peer-reviewed scientific video ... ways of treating coronary artery disease (CAD). Lam is an assistant professor at ...
Breaking Biology Technology: