Navigation Links
Tortoise populations can withstand fires every 30 years
Date:7/19/2011

Populations of spur-thighed tortoises (Testudo graeca), a species classified as vulnerable and at risk of extinction, can withstand fires if outbreaks occur once every three decades or more. However, the youngest tortoises are more vulnerable, and disappear after each fire. These are the results of a study by Spanish researchers, who analysed the impact of a 2004 forest fire in the Sierra de la Carrasquilla mountains in Murcia (Spain) on these reptiles.

"Tortoises can withstand high temperatures, but this does not mean their shells are completely fire proof", Ana Sanz-Aguilar, lead author of the study, tells SINC. Currently a postdoctoral scholar at the Centre for Functional and Evolutionary Ecology in Montpellier, France, she collaborated with the Miguel Hernndez University (UMH) and the Mediterranean Institute for Advanced Studies (IMEDEA-CSIC) for this research.

One such forest fire occurred on 1 August 2004 in the Sierra de la Carrasquilla mountains in Murcia, Spain, which incinerated a 250-hectare area that was home to a large population of these reptiles. The researchers have been studying the behaviour of more than 1,000 of the animals over the past decade.

The study, published in the journal Biological Conservation, shows that the tortoises' response to fire varied greatly according to their age, with the fire killing 100% of the animals aged under four and causing increased mortality rates of 62% in sub-adults (aged from 4 to 8) and 12% in adults (over 8 years of age).

"For the dynamics of this species, a 12% increased mortality rate among adults is more serious than the disappearance of all the young tortoises", says Sanz-Aguilar.

According to the study, the viability of populations of these animals depends on low mortality rates and longevity among adult individuals. Any factor that causes an increase in adult mortality, such as greater vulnerability to forest fires in rocky environments,
'/>"/>

Contact: SINC Team
info@agenciasinc.es
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Madagascars radiated tortoise threatened with extinction
2. New study shows how giant tortoises, alligators thrived in High Arctic 50 million years ago
3. In the race of life, better an adaptable tortoise than a fit hare
4. Giant tortoises show rewilding can work
5. Snakes, salamanders and other creatures thrive in areas with higher deer populations
6. Shifts in soil bacterial populations linked to wetland restoration success
7. Lake Michigan fish populations threatened by decline of tiny creature
8. You dont call, you dont write: Connectivity in marine fish populations
9. U of Minnesota-led study finds that hunters are depleting lion and cougar populations
10. Changing the course of nature: Are fisheries directing the evolution of fish populations?
11. Commercial fishing endangers dolphin populations
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Tortoise populations can withstand fires every 30 years
(Date:6/25/2015)... N.J. , June 25, 2015  TAKE Solutions ... a patent by the United States Patent and Trademark ... Standardization". This process leverages TAKE Solutions, Clinical Accelerators to ... over 50% (when compared to standardization without the accelerators), ... At the heart of ...
(Date:6/24/2015)... , June 24, 2015  Synaptics Inc. (NASDAQ: ... interface solutions, today announced that Sharp has selected ... secure authentication for its latest flagship smartphone device, ... than 200 million shipments of its fingerprint ID ... Synaptics, strength, scalability and leadership in the biometrics ...
(Date:6/23/2015)... 2015   MedNet Solutions , an innovative ... spectrum of clinical research, is pleased to announce ... the company,s intuitive, flexible and affordable cloud-based eClinical ... Stevie® Award by the American Business Awards ... category.  The American Business Awards are considered the ...
Breaking Biology News(10 mins):TAKE Solutions Awarded Patent By USPTO 2Synaptics Brings Natural ID Technology to Sharp's Newest Flagship Smartphone 2MedNet Solutions' iMedNet eClinical Wins Silver Stevie Award 2
... Tufts University have gained further understanding of the ... content of uracil in blood DNA. In a ... Clinical Nutrition , senior author Jimmy Crott, PhD, ... in five genes involved in folate uptake and ...
... kinds of cells, immune cells lose the ability to divide ... as a telomere becomes progressively shorter with cell division. As ... disease fighting ability is compromised. But ... chemical from the Astragalus root, frequently used in Chinese herbal ...
... crops grow, blossom and die within one year. Perennials ... strategy of many annuals consists of rapid growth following ... thus preventing the loss of energy needed to create ... that they come out before other plants, thus eliminating ...
Cached Biology News:SNPs affect folate metabolism in study of Puerto-Rican adults 2SNPs affect folate metabolism in study of Puerto-Rican adults 3Researchers use chemical from medicinal plants to fight HIV 2Researchers use chemical from medicinal plants to fight HIV 3Annuals converted into perennials 2
(Date:7/28/2015)... (PRWEB) , ... July 28, 2015 , ... ... more than EUR 1.022 billion in 2013; while production volume reached close to ... leading producing country with a share of 75.5% of the region’s total aluminium ...
(Date:7/28/2015)... -- Deerfield Management Company, L.P. today announced the launch ... invest in groundbreaking advancements in science that may lead ... diseases. The venture capital fund will also back new ... improve the way healthcare is delivered to patients. ... funds in the sector, will donate all profits not ...
(Date:7/28/2015)... July 28, 2015 BioStructures, LLC, a ... hit a milestone of 4,000 implantations of Signafuse® ... cleared in early 2014 as a bone void ... fusion procedures.  This is a distinguished status among ... 6% of new synthetic products have received clearance ...
(Date:7/28/2015)... ZIONA, Israel , July ... (TASE:CLPT; OTC:CQPTY), a regenerative medicine company utilizing its ... today announced that Shomrat Shurtz has been appointed ... 2015.      (Photo: http://photos.prnewswire.com/prnh/20150728/246955 ... 25 years of experience in marketing, regulatory and ...
Breaking Biology Technology:EU27 Aluminium Hydroxide Market Analysed and Forecast by BAC Reports in New Research Study Available at MarketPublishers.com 2EU27 Aluminium Hydroxide Market Analysed and Forecast by BAC Reports in New Research Study Available at MarketPublishers.com 3Deerfield Launches $550 Million Healthcare Venture-Capital Fund 2Deerfield Launches $550 Million Healthcare Venture-Capital Fund 3Revolutionary Bone Graft Exceeds Expectations 2CollPlant Names Shomrat Shurtz Senior Director of Business Development 2
... Advanced Cell Technology,s (OTCBB: ACTC) Chief Scientific Officer, ... Lecture at the ,3rd International Conference on Cell Therapy, ... November 12, 2009. The Conference will focus on ... include sessions on ,Tissue Specific Stem Cell Therapy, ,Cancer ...
... ... related questions and answers (Q&A) site that provides members the opportunity to ... one of the many science categories. Members can also enter a social ... member or broadcasted to multiple members. This environment also provides a place ...
... Researchers at the McCormick School of Engineering and Applied ... a new kind of probe used in atomic force ... the nanoscale. Using diamond, researchers made a ... nitride probes, which are typically used in AFM to ...
Cached Biology Technology:Advanced Cell Technology's Chief Scientific Officer, Robert Lanza, Opening Plenary Speaker at the '3rd International Conference on Cell Therapy' 2SciScout LLC Launches SciAnswers.com, a Science-Based Questions and Answers (Q&A) Site with a Social Networking Perspective. 2SciScout LLC Launches SciAnswers.com, a Science-Based Questions and Answers (Q&A) Site with a Social Networking Perspective. 3SciScout LLC Launches SciAnswers.com, a Science-Based Questions and Answers (Q&A) Site with a Social Networking Perspective. 4New nanocrystalline diamond probes overcome wear 2
Goat polyclonal to SART3 ( Abpromise for all tested applications). Antigen: Synthetic peptide: MSNADFAKLFLRK, corresponding to C terminal amino acids 951-963 of Human SART3 Entrez Gene ID: 9...
... Anti-acetyl-Histone H3 (Lys 4) ... sequence ...RT[ Ac K]Q... in which [ ... of human histone H3 ... Molecular Weight: Mr ~17kDa ...
Blank Calibration Particles, 3.0-3.4 mu m 5 ml...
b-Catenin (pSer675), phospho-specific...
Biology Products: