Navigation Links
Aphids are sentinels of climate change
Date:8/6/2008

Aphids are emerging as sentinels of climate change, researchers at BBSRC-supported Rothamsted Research have shown. One of the UK's most damaging aphids the peach-potato aphid (Myzus persicae) has been found to be flying two weeks earlier for every 1C rise in mean temperature for January and February combined. This year, the first aphid was caught on 25 April, which is almost four weeks ahead of the 42-year average. This work is reported in BBSRC Business, the quarterly research highlights magazine of BBSRC (the Biotechnology and Biological Sciences Research Council).

Dr Richard Harrington of the Rothamsted Insect Survey said: "One of the most noticeable consequences of climate change in the UK is the frequency of mild winters. As a direct result of this, aphids seeking new sources of food are appearing significantly earlier in the year and in significantly higher numbers. We have been studying the seasonal biology of aphids for a long time now and we know that populations can continue to grow over the winter and spring provided that conditions are warm enough. After a warm winter, there are much larger numbers flying and they are hence detected much earlier. This means that there are more aphids flying in spring and early summer, when crops are particularly vulnerable to damage."

Scientists at Rothamsted Research have been monitoring the flying form of all aphid species for 42 years. They use a network of 16 suction traps (12 in England and 4 in Scotland), placed at various sites, to collect a representative sample of all flying insects. The long term data on aphids can be used to understand the wider implications of climate change, and also to prepare for the season ahead by determining the need for and timing of aphid control measures (based on preceding winter temperatures). As well as being important indicators of a changing climate, aphids can cause devastating damage to crops. They extract large amounts of sap, weakening the plant, and also spread plant viruses. In addition, because the sap is very high in sugars the aphids excrete very sticky honeydew, which can encourage the growth of sooty moulds that build up and prevent sunlight from reaching the leaves, causing further weakening.

Professor Nigel Brown, Director of Science and Technology, BBSRC said: "Environmental change is one of the big challenges facing the world today. These long-term data on the seasonal appearance of flying aphids not only show that there are already noticeable changes in the UK climate, but they also provide the knowledge which will help to mitigate the consequences."


'/>"/>

Contact: Nancy Mendoza
press.office@bbsrc.ac.uk
44-017-934-13355
Biotechnology and Biological Sciences Research Council
Source:Eurekalert

Related biology news :

1. Transgenic maize is more susceptible to aphids
2. Rare Antarctic fossils reveal extinction of tundra before full polar climate arrived
3. Climate change and species distributions
4. Carnegie Mellon Researcher says Chinas export trade impacts climate
5. Costs of climate change, state-by-state: Billions, says UMD
6. Study suggests past climate changes may have promoted the formation of new species in the Amazon
7. EPA releases report on climate change and health
8. Scattered nature of Wisconsins woodlands could complicate forests response to climate change
9. New study finds that some plants can adapt to widespread climate change
10. Scientists integrate data in three dimensions to study climate effects on young fish
11. Instances of mass die-offs in wild lions precipitated by extreme climate change
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/21/2016)... British Columbia , June 21, 2016 /PRNewswire/ ... appointed to the new role of principal product ... been named the director of customer development. Both ... NuData,s chief technical officer. The moves reflect NuData,s ... teams in response to high customer demand and ...
(Date:6/15/2016)... New York , June 15, 2016 /PRNewswire/ ... a new market report titled "Gesture Recognition Market by ... and Forecast, 2016 - 2024". According to the report, ... USD 11.60 billion in 2015 and is estimated ... reach USD 48.56 billion by 2024.  ...
(Date:6/7/2016)... 7, 2016  Syngrafii Inc. and San Antonio ... that includes integrating Syngrafii,s patented LongPen™ eSignature "Wet" ... collaboration will result in greater convenience for SACU ... while maintaining existing document workflow and compliance requirements. ... Highlights: ...
Breaking Biology News(10 mins):
(Date:6/22/2016)... , June 22, 2016   StockNewsNow.com , The ... Interview with Dr. Nader Pourhassan , President & ... focused on the clinical development and potential commercialization of ... HIV infection, according to the company,s website (see here: ... Tuesday, June 7 th , 2016, at the LD ...
(Date:6/22/2016)... SAN DIEGO , June 22, 2016   ... the first pluripotent stem cell-derived islet replacement therapy for ... two presentations at ISSCR 2016 Annual Meeting.  ISSCR 2016, ... 22nd to 25th at Moscone West in San Francisco.  ... Details of the presentations are as follows:Event: , Focus ...
(Date:6/22/2016)... ... June 22, 2016 , ... ... a spotlight on immigrant achievements and contributions to North Texas and the nation, ... contributors from the immigrant community to the civic and economic vitality of North ...
(Date:6/22/2016)... ALBANY, N.Y. , June 22, 2016 ... Molecular Research, Inc. (NASDAQ: AMRI ) ... to produce and sell the first commercially available ... standard is manufactured using Teewinot,s patented biosynthetic processes. ... biosynthetic genes in microorganisms for efficient production of ...
Breaking Biology Technology: