Navigation Links
Rediscovery of disappeared species: Truly back from the brink?
Date:8/15/2011

Extinction is a focal issue among scientists, policy makers and the general public. Each year, numerous species which are thought to have disappeared are rediscovered. Yet, these rediscoveries remain on the brink of extinction.

Researchers from the National University of Singapore (NUS), University of Adelaide and Princeton University found that over the past 122 years, at least 351 species which are thought to have disappeared, have been rediscovered. The finding was derived from a first-ever such study conducted on the full extent of amphibian, bird and mammal species rediscoveries globally. The rediscovery of these once-missing amphibians, birds, and mammals occur mostly in the tropics.

However, despite many rediscoveries, 92 per cent of amphibians, 86 per cent of birds and 86 per cent of mammals are highly threatened, independent of how long they were missing or when they were rediscovered.

Under the current trends of widespread habitat loss, particularly in the tropics, most rediscovered species remain on the brink of extinction.

According to the lead researcher, Brett R. Scheffers, who is from the Department of Biological Sciences at NUS, most rediscovered species have small range size, which is the main driver in species extinction globally.

He said: "Rediscoveries, without aggressive conservation, likely represent the delayed extinction of doomed species and not the return of viable populations. In short, there is hope but we must step up rapid conservation efforts."

To make matters worse, the average number of years a species went missing is 61 years. This long duration makes conservation planning for missing species very difficult, particularly in areas that are of high value to humans. For instance, the protected areas that have been put aside for a particular species that has not been seen for numerous years could have be converted for agricultural use.

Findings from the study, which was published on PLoS One in July, are indicative of the limited knowledge of biological diversity in the poorly known tropics. Elaborating, Scheffers said: "We still have much to discover and these results indicate that it may not be too late for many species that have gone unseen for many years."

"We support and encourage more biodiversity surveys in the poorly known tropics. This is particularly important as many museums are experiencing shortened budgets or event budget cuts," Scheffers added.


'/>"/>

Contact: Carolyn FONG
carolyn@nus.edu.sg
656-516-5399
National University of Singapore
Source:Eurekalert

Related biology news :

1. Rediscovery: MBL scientists confirm role for mysterious cell component, the nucleolinus
2. Waging war on invasive plant species: Effects of invasives persist even after removal
3. Explore the origin of our species: Wiley-Blackwell Encyclopedia of Human Evolution
4. Philippines may have more unique bird species: CCNY biologist
5. Elevated water temperature and acidity boost growth of key sea star species: UBC researchers
6. NTU gets GreenLite for Singapores first truly eco-friendly bus
7. Study of polar dinosaur migration questions whether dinosaurs were truly the first great migrators
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/22/2016)... , November 22, 2016 According to the ... IRIS, Palm Print, Face, Vein, Signature, Voice), Multi-Factor), Component (Hardware and Software), ... published by MarketsandMarkets, the market is expected to grow from USD 10.74 ... CAGR of 16.79% between 2016 and 2022. ... ...
(Date:11/21/2016)...   Neurotechnology , a provider of high-precision ... that the MegaMatcher On Card fingerprint matching algorithm ... NIST Minutiae Interoperability Exchange (MINEX) III ... of the evaluation protocol. The ... fingerprint templates used to establish compliance of template ...
(Date:11/17/2016)... LONDON , Nov. 17, 2016 Global Market ... and Public Biobanks (Disease-Based Banks, Population-Based Banks and Academics) market ... Geographical analysis for Private Biobanks shows the highest Compounded Annual ... Asia-Pacific region during the analysis period 2014-2020. ... a CAGR of 9.95% followed by Europe ...
Breaking Biology News(10 mins):
(Date:12/8/2016)... ... ... Lajollacooks4u, San Diego’s premier team building events and cooking events company, announced ... and company expansion. , This is largely due to its team building ... people. Ever since, Lajollacooks4u has seen significant demand for its services from organizations across ...
(Date:12/8/2016)... SAN DIEGO , Dec. 8, 2016 /PRNewswire/ ... presented demonstrating the role of the Breast Cancer ... stage, ER+ breast cancer are most at-risk for ... therapy. Data include results from three studies advancing ... provide information related to tumor biology and inform ...
(Date:12/8/2016)... Oregon (PRWEB) , ... December 08, 2016 , ... ... and the FrontPanel SDK that provide essential device-to-computer interconnect using USB or PCI ... not require FrontPanel support. The FOMD-ACV-A4 is a small, thin, SODIMM-style module that ...
(Date:12/8/2016)... ... December 08, 2016 , ... ... portal. In response to client demand KbioBox developed a sophisticated “3 click” gene ... Both are accessible from KBioBox’s new website, https://www.kbiobox.com/ and powered ...
Breaking Biology Technology: