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How can we preserve and restore species richness of pollinating insects on agricultural land?

Franzén, Markus LU and Nilsson, Sven LU (2008) In Ecography 31(6). p.698-708
Abstract
During recent decades, concern about the loss of biodiversity on agricultural land has increased, and semi-natural grasslands have been highlighted as critical habitats. Temperate European agricultural landscapes require distinct and appropriate management to prevent further impoverishment of the flora and fauna. This is especially urgent for

pollinating insects that provide important ecosystem services. Our aim was to examine how species richness of three important groups of pollinating insects; solitary bees, butterflies and burnet moths are related to different farm characteristics, and if there are any differences between these three groups. A further aim was to test if red-listed species are related to any farm... (More)
During recent decades, concern about the loss of biodiversity on agricultural land has increased, and semi-natural grasslands have been highlighted as critical habitats. Temperate European agricultural landscapes require distinct and appropriate management to prevent further impoverishment of the flora and fauna. This is especially urgent for

pollinating insects that provide important ecosystem services. Our aim was to examine how species richness of three important groups of pollinating insects; solitary bees, butterflies and burnet moths are related to different farm characteristics, and if there are any differences between these three groups. A further aim was to test if red-listed species are related to any farm characteristics. Species richness of solitary bees, butterflies and burnets was measured on all seminatural grasslands at 16 farms in a forest-dominated area of 50 km2 in southern Sweden, using systematic transect walks in April to September 2003 (only butterflies and burnets) and 2005. Species richness of solitary bees and butterflies was

intercorrelated, both before and after controlling for the area of semi-natural grassland. Species richness of solitary bees increased with the area of semi-natural grassland. After controlling for the effect of the area of semi-natural grassland species richness was strongly positively related with the density of the plant Knautia arvensis and negatively related with the proportion of grazed grassland. The results were similar for solitary bees and butterflies. The number of red-listed solitary bees was positively related to the proportion of meadows with late harvest(after mid-July) and decreased with increased farm isolation. The number of burnet species (all red-listed) was positively related to vegetation height, flower

density and the proportion of meadows with late harvest on a farm. Areas with a high density of K. arvensis and with traditional hay-meadow with late harvest present, harbour most species. Promoting traditional hay-meadows, late extensive grazing and the herb K. arvensis, people managing agricultural biodiversity can encompass high species richness of pollinating insects and support red-listed species. Further, we suggest that the density of K. arvensis at a farm can be used as a biodiversity indicator, at least for pollinating insects. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
landscape, scale, Knautia arvensis, hay-meadow, grazing pressure, butterfly, solitary bee, biodiversity indicator, Zygaenidae
in
Ecography
volume
31
issue
6
pages
698 - 708
publisher
Wiley-Blackwell
external identifiers
  • wos:000262639100003
  • scopus:58549104135
ISSN
1600-0587
DOI
10.1111/j.1600-0587.2008.05110.x
language
English
LU publication?
yes
id
eacfe970-5a95-4de9-9343-909ecf8a4287 (old id 1278885)
date added to LUP
2009-02-03 15:33:23
date last changed
2017-09-17 04:29:14
@article{eacfe970-5a95-4de9-9343-909ecf8a4287,
  abstract     = {During recent decades, concern about the loss of biodiversity on agricultural land has increased, and semi-natural grasslands have been highlighted as critical habitats. Temperate European agricultural landscapes require distinct and appropriate management to prevent further impoverishment of the flora and fauna. This is especially urgent for<br/><br>
pollinating insects that provide important ecosystem services. Our aim was to examine how species richness of three important groups of pollinating insects; solitary bees, butterflies and burnet moths are related to different farm characteristics, and if there are any differences between these three groups. A further aim was to test if red-listed species are related to any farm characteristics. Species richness of solitary bees, butterflies and burnets was measured on all seminatural grasslands at 16 farms in a forest-dominated area of 50 km2 in southern Sweden, using systematic transect walks in April to September 2003 (only butterflies and burnets) and 2005. Species richness of solitary bees and butterflies was<br/><br>
intercorrelated, both before and after controlling for the area of semi-natural grassland. Species richness of solitary bees increased with the area of semi-natural grassland. After controlling for the effect of the area of semi-natural grassland species richness was strongly positively related with the density of the plant Knautia arvensis and negatively related with the proportion of grazed grassland. The results were similar for solitary bees and butterflies. The number of red-listed solitary bees was positively related to the proportion of meadows with late harvest(after mid-July) and decreased with increased farm isolation. The number of burnet species (all red-listed) was positively related to vegetation height, flower<br/><br>
density and the proportion of meadows with late harvest on a farm. Areas with a high density of K. arvensis and with traditional hay-meadow with late harvest present, harbour most species. Promoting traditional hay-meadows, late extensive grazing and the herb K. arvensis, people managing agricultural biodiversity can encompass high species richness of pollinating insects and support red-listed species. Further, we suggest that the density of K. arvensis at a farm can be used as a biodiversity indicator, at least for pollinating insects.},
  author       = {Franzén, Markus and Nilsson, Sven},
  issn         = {1600-0587},
  keyword      = {landscape,scale,Knautia arvensis,hay-meadow,grazing pressure,butterfly,solitary bee,biodiversity indicator,Zygaenidae},
  language     = {eng},
  number       = {6},
  pages        = {698--708},
  publisher    = {Wiley-Blackwell},
  series       = {Ecography},
  title        = {How can we preserve and restore species richness of pollinating insects on agricultural land?},
  url          = {http://dx.doi.org/10.1111/j.1600-0587.2008.05110.x},
  volume       = {31},
  year         = {2008},
}