Advanced

Crop management affects pollinator attractiveness and visitation in oilseed rape

Lindström, Sandra A.M. LU ; Klatt, Björn K. LU ; Smith, Henrik G. LU and Bommarco, Riccardo LU (2017) In Basic and Applied Ecology
Abstract

Ecological intensification of agriculture implies managing ecological processes to improve performance of agricultural systems. However, impacts on relevant ecological functions such as insect pollination from other crop management factors are poorly explored. Pest insects and crop resources such as water availability can directly affect crop yields, but it is unknown if there are indirect effects through effects on insect pollination. With a factorial experiment, we examined how irrigation and control of pollen beetles affected crop attractiveness and pollinator visitation in an open-pollinated spring oilseed rape cultivar. We studied how irrigation and pest control modified the production of flowers and nectar in oilseed rape, and if... (More)

Ecological intensification of agriculture implies managing ecological processes to improve performance of agricultural systems. However, impacts on relevant ecological functions such as insect pollination from other crop management factors are poorly explored. Pest insects and crop resources such as water availability can directly affect crop yields, but it is unknown if there are indirect effects through effects on insect pollination. With a factorial experiment, we examined how irrigation and control of pollen beetles affected crop attractiveness and pollinator visitation in an open-pollinated spring oilseed rape cultivar. We studied how irrigation and pest control modified the production of flowers and nectar in oilseed rape, and if this in turn affected the flower-visitation of honey bees and bumble bees. Pest control increased the number of oilseed rape flowers by 69%, and the amount of nectar per flower with 36%, but for the latter only in non-irrigated plots. Furthermore, we found higher pollinator densities in plots with reduced pollen beetle densities. Pest control also reduced the number of non-legitimate flower visits, suggesting higher pollination efficiency in plots with reduced pollen beetle densities. We show that crop management affects the value of mass-flowering crops as a resource for pollinating insects. Development of pest control tools that are harmless to pollinators could increase the value of flowering crops as food resources for pollinating insects.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Apis mellifera, Bombus, Brassica napus, Crop pollination, Irrigation, Nectar, Pollen beetle, Sclerotinia
in
Basic and Applied Ecology
publisher
Elsevier
external identifiers
  • scopus:85031493241
ISSN
1439-1791
DOI
10.1016/j.baae.2017.09.005
language
English
LU publication?
yes
id
cd9b2cfc-d5df-44fb-8de8-9576a1436999
date added to LUP
2017-10-30 08:55:28
date last changed
2018-01-07 12:24:11
@article{cd9b2cfc-d5df-44fb-8de8-9576a1436999,
  abstract     = {<p>Ecological intensification of agriculture implies managing ecological processes to improve performance of agricultural systems. However, impacts on relevant ecological functions such as insect pollination from other crop management factors are poorly explored. Pest insects and crop resources such as water availability can directly affect crop yields, but it is unknown if there are indirect effects through effects on insect pollination. With a factorial experiment, we examined how irrigation and control of pollen beetles affected crop attractiveness and pollinator visitation in an open-pollinated spring oilseed rape cultivar. We studied how irrigation and pest control modified the production of flowers and nectar in oilseed rape, and if this in turn affected the flower-visitation of honey bees and bumble bees. Pest control increased the number of oilseed rape flowers by 69%, and the amount of nectar per flower with 36%, but for the latter only in non-irrigated plots. Furthermore, we found higher pollinator densities in plots with reduced pollen beetle densities. Pest control also reduced the number of non-legitimate flower visits, suggesting higher pollination efficiency in plots with reduced pollen beetle densities. We show that crop management affects the value of mass-flowering crops as a resource for pollinating insects. Development of pest control tools that are harmless to pollinators could increase the value of flowering crops as food resources for pollinating insects.</p>},
  author       = {Lindström, Sandra A.M. and Klatt, Björn K. and Smith, Henrik G. and Bommarco, Riccardo},
  issn         = {1439-1791},
  keyword      = {Apis mellifera,Bombus,Brassica napus,Crop pollination,Irrigation,Nectar,Pollen beetle,Sclerotinia},
  language     = {eng},
  month        = {09},
  publisher    = {Elsevier},
  series       = {Basic and Applied Ecology},
  title        = {Crop management affects pollinator attractiveness and visitation in oilseed rape},
  url          = {http://dx.doi.org/10.1016/j.baae.2017.09.005},
  year         = {2017},
}