Navigation Links
Turning problems into solutions: Land management as a key to countering butterfly declines
Date:11/18/2013

Currently, butterfly populations in many countries decline at alarming rates. Many of these populations are closely associated with the agricultural landscape. Changes in farming practises and land use can therefore have far-reaching consequences for the success and persistence of the butterfly fauna. A research team from Sweden and Germany have now reviewed effects of land management on butterfly diversity using historical and current surveys during the last 100 years.

The study focuses on systematic surveys of butterfly population trends and extinction rates in southern Swedish agricultural landscapes. In some areas, half of the butterfly fauna has been lost during the last 60-100 years. The study is published in the journal Nature Conservation.

Land use in these parts of northern Europe has changed markedly with key butterfly habitats such as hay meadows disappearing at alarming rates. Grazed, mixed open woodlands have been transformed into dense forests and domestic grazers have been relocated from woodlands to arable fields and semi-natural grasslands. Hay and silage harvest now start much earlier in the season which reduces the time available for larval development. The changed and intensified land use has also markedly reduced the availability of nectar resources in the landscape. Adding to these problems, current agricultural subsidy systems favour intensive grazing on the remaining semi-natural grasslands, with strong negative effects on butterfly diversity.

While the documented changes in farming practises and land use are problematic for the butterfly fauna, relatively minor adjustments to land management have a potential of drastically counteracting these effects. In order to mitigate risks of further species loss and to work towards recovery of threatened butterfly populations, the review ends by recommending twelve management measures favourable for many butterflies. Examples include later grazing, rotational grazing with parts of semi-natural grasslands grazed only in late summer in some years, and careful choice of grazers.


'/>"/>

Contact: Lars Pettersson
lars.pettersson@biol.lu.se
Pensoft Publishers
Source:Eurekalert  

Related biology news :

1. Turning off small RNA
2. Turning down the dial: Ocean energy development with less sound
3. Turning ideas into products faster
4. Why astronauts experience low blood pressure after returning to Earth from space
5. Zebrafish may hold the answer to repairing damaged retinas and returning eyesight to people
6. AZTI-Tecnalia is turning vegetable by-products destined for landfills into feedstuff
7. Researchers find molecular switch turning on self-renewal of liver damage
8. Returning military personnel to duty following severe injury to the lower extremity
9. Turning human stem cells into brain cells sheds light on neural development
10. Stopping the worm from turning
11. Turning point for early human diets occurred 3.5 million years ago
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Turning problems into solutions: Land management as a key to countering butterfly declines
(Date:6/22/2016)... , June 22, 2016  The American College of Medical ... Show Executive Magazine as one of the fastest-growing trade ... 25-27 at the Bellagio in Las Vegas ... highest percentage of growth in each of the following categories: ... companies and number of attendees. The 2015 ACMG Annual Meeting ...
(Date:6/22/2016)... , June 22, 2016   ... management and verification solutions, has partnered with ... software solutions for Visitor Management, Self-Service Kiosks ... provides products that add functional enhancements to ... provides corporations and venues with an automated ...
(Date:6/22/2016)... On Monday, the Department of Homeland Security ... solutions for the Biometric Exit Program. The Request for ... (CBP), explains that CBP intends to add biometrics to ... United States , in order to deter visa ... Logo - http://photos.prnewswire.com/prnh/20160622/382209LOGO ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... ... ... Parallel 6 , the leading software as a service (SaaS) provider ... Patient Encounter CONSULT module which enables both audio and video telemedicine communication between the ... the CONSULT module, patients and physicians can schedule a face to face virtual patient ...
(Date:6/24/2016)... TOKYO , June 24, 2016  Regular discussions on ... to take place between the two entities said Poloz. ... in Ottawa , he pointed to the ... and the federal government. ... Poloz said, "Both institutions have common economic goals, why not ...
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... ... is pleased to announce the launch of their brand, UP4™ Probiotics, into Target ... over 35 years, is proud to add Target to its list of well-respected ...
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... ... Plate® YM (Yeast and Mold) microbial test has received AOAC Research Institute approval ... of microbial tests introduced last year,” stated Bob Salter, Vice President of Regulatory ...
Breaking Biology Technology: