Navigation Links
Study shows disease spread in ladybirds with sexually transmitted disease
Date:2/7/2013

A study at the University of Liverpool into the spread of sexually transmitted infection in ladybirds has shown that disease risk to large populations cannot be predicted without a full understanding of the disease dynamics at small geographical scale.

Scientists investigated a virulent form of infection in the central and northern European populations of the two-spot ladybird to understand the conditions that favoured disease spread. Researchers found that disease burden in two locations of the same habitat the lime tree - were very different, despite being within 12km of each other.

It is expected that disease epidemics will vary over space, but variation at small local scale, however, was not predicted because it is generally thought that insects move easily and regularly amongst habitats, taking infection with them.

The Liverpool team found that there were significant differences between disease outbreak sites that were close to each other, which were caused by differences in mating rates across habitats.

The study showed that a healthy supply of food increased the mating frequency of ladybirds, and therefore encouraged disease spread. Ladybirds with less food supply, however, mate less frequently and did not experience the same high rate of infection.

The research highlights that disease epidemics cannot be predicted or understood fully without sampling the infection at small spatial scales. Researchers showed that pulling together information about the local population, such as food supply and mating habits, is essential in order to build a more accurate picture of disease dynamics in the wider population.

Professor Greg Hurst, from the University's Institute of Integrative Biology, explains: "In order to understand disease spread we look at the conditions that favour disease and how the impact of the infection can differ across many habitats as a result of variation in individual behaviour, such as mating habits for example.

"What we found surprising in our study was that variation in the disease dynamics of sexually transmitted infection in ladybirds occurred at a very local level. We found differences in the prevalence of disease in a tree and bush habitat, for example that were only 100 metres apart.

"Looking at the patterns of behaviour in the population more closely we could see that those habitats with more food had higher mating rates than those that did not have such a plentiful supply, and the disease infected males and females more rapidly in these places.

"This means that the infection, which causes sterility in females, will reduce ladybird reproduction in habitats with good food supply, the very places that should be important drivers of population growth. It highlights the significance of looking very carefully at local differences in the spread of infection before predicting disease impact."


'/>"/>

Contact: Samantha Martin
samantha.martin@liv.ac.uk
44-015-179-42248
University of Liverpool
Source:Eurekalert

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. Law that regulates shark fishery is too liberal: UBC study
3. New study will help protect vulnerable birds from impacts of climate change
4. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
5. BYU study: Using a gun in bear encounters doesnt make you safer
6. 15-year study: When it comes to creating wetlands, Mother Nature is in charge
7. Pycnogenol (French maritime pine bark extract) shown to improve menopause symptoms in new study
8. Crystal structure of archael chromatin clarified in new study
9. EU-funded study underlines importance of Congo Basin for global climate and biodiversity
10. University of Houston study shows BP oil spill hurt marshes, but recovery possible
11. Study demonstrates cells can acquire new functions through transcriptional regulatory network
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/20/2016)... 20, 2016   MedNet Solutions , an innovative ... of clinical research, is pleased to announce the attainment ... are the result of the company,s laser focus on ... , it,s comprehensive, easy-to-use and highly affordable cloud-based ... Key MedNet growth achievements in 2015 include: ...
(Date:1/13/2016)... DUBLIN , January 13, 2016 ... has announced the addition of the  ... - Estimation & Forecast (2015-2020)" ... http://www.researchandmarkets.com/research/7h6hnn/india_biometrics ) has announced the ... & Identification Market - Estimation & ...
(Date:1/7/2016)... Jan. 7, 2016 This BCC Research report ... biometric technologies and devices, identifying newer markets and exploring ... types of biometric devices. Includes forecast from 2015 to ... newer markets and explore the expansion of the present ... each type of biometric technology, determine its current market ...
Breaking Biology News(10 mins):
(Date:2/8/2016)... 8, 2016  BioElectronics Corporation (OTC Pink: BIEL), ... today that it is responding to a notice ... Securities and Exchange Commission posted on the agency ... of the Board of BioElectronics Corporation and the ... at The Fuqua School of Business, Duke University.   ...
(Date:2/8/2016)... (PRWEB) , ... February 08, 2016 , ... ... (AI) and leading supplier of Semantic Graph Database technology, today announced the availability ... release of Cloudera Enterprise through the Cloudera Certified Technology Program (CCPT). ...
(Date:2/8/2016)... today that its new website has gone live. On Thursday, Feb. 4, the company unveiled a ... Visit the new site: www.diplomat.is ... ... Diplomat Specialty Pharmacy ... "The goal was to reimagine the website and create a smarter, more comprehensive digital platform," ...
(Date:2/6/2016)... ... 06, 2016 , ... Contact:, Abby Mitchell, Communications Manager, Phone: ... Sponsors Teacher Training Program , Bite of Science Dinner Event to Strengthen Science ... in Education (CEE) will sponsor a Bite of Science professional enrichment session, cost-free, ...
Breaking Biology Technology: