eap.2216.pdf 4,70MB
1000 Titel
  • Honey bee colony performance affected by crop diversity and farmland structure: a modeling framework
1000 Autor/in
  1. Horn, Juliane |
  2. Becher, Matthias A. |
  3. Johst, Karin |
  4. Kennedy, Peter J. |
  5. Osborne, Juliet L. |
  6. Radchuk, Viktoriia |
  7. Grimm, Volker |
1000 Erscheinungsjahr 2020
1000 LeibnizOpen
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2020-08-18
1000 Erschienen in
1000 Quellenangabe
  • 31(1):e02216
1000 FRL-Sammlung
1000 Copyrightjahr
  • 2020
1000 Lizenz
1000 Verlagsversion
  • |
1000 Ergänzendes Material
  • |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • Forage availability has been suggested as one driver of the observed decline in honey bees. However, little is known about the effects of its spatiotemporal variation on colony success. We present a modeling framework for assessing honey bee colony viability in cropping systems. Based on two real farmland structures, we developed a landscape generator to design cropping systems varying in crop species identity, diversity, and relative abundance. The landscape scenarios generated were evaluated using the existing honey bee colony model BEEHAVE, which links foraging to in-hive dynamics. We thereby explored how different cropping systems determine spatiotemporal forage availability and, in turn, honey bee colony viability (e.g., time to extinction, TTE) and resilience (indicated by, e.g., brood mortality). To assess overall colony viability, we developed metrics, PH and PP, which quantified how much nectar and pollen provided by a cropping system per year was converted into a colony's adult worker population. Both crop species identity and diversity determined the temporal continuity in nectar and pollen supply and thus colony viability. Overall farmland structure and relative crop abundance were less important, but details mattered. For monocultures and for four-crop species systems composed of cereals, oilseed rape, maize, and sunflower, PH and PP were below the viability threshold. Such cropping systems showed frequent, badly timed, and prolonged forage gaps leading to detrimental cascading effects on life stages and in-hive work force, which critically reduced colony resilience. Four-crop systems composed of rye-grass?dandelion pasture, trefoil?grass pasture, sunflower, and phacelia ensured continuous nectar and pollen supply resulting in TTE > 5 yr, and PH (269.5 kg) and PP (108 kg) being above viability thresholds for 5 yr. Overall, trefoil?grass pasture, oilseed rape, buckwheat, and phacelia improved the temporal continuity in forage supply and colony's viability. Our results are hypothetical as they are obtained from simplified landscape settings, but they nevertheless match empirical observations, in particular the viability threshold. Our framework can be used to assess the effects of cropping systems on honey bee viability and to develop land-use strategies that help maintain pollination services by avoiding prolonged and badly timed forage gaps.
1000 Sacherschließung
lokal colony viability
lokal modeling
lokal forage availability
lokal landscape generator
lokal decline
lokal honey bees
lokal cropping system
lokal forage gaps
lokal crop diversity
lokal Apis mellifera
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
1000 Label
1000 Förderer
  1. Deutscher Akademischer Austauschdienst |
  2. Helmholtz-Gemeinschaft |
  3. Biotechnology and Biological Sciences Research Council |
1000 Fördernummer
  1. -
  2. -
  3. BB/K014463/1
1000 Förderprogramm
  1. -
  2. Helmholtz Interdisciplinary GRADuate School for Environmental Research
  3. -
1000 Dateien
1000 Förderung
  1. 1000 joinedFunding-child
    1000 Förderer Deutscher Akademischer Austauschdienst |
    1000 Förderprogramm -
    1000 Fördernummer -
  2. 1000 joinedFunding-child
    1000 Förderer Helmholtz-Gemeinschaft |
    1000 Förderprogramm Helmholtz Interdisciplinary GRADuate School for Environmental Research
    1000 Fördernummer -
  3. 1000 joinedFunding-child
    1000 Förderer Biotechnology and Biological Sciences Research Council |
    1000 Förderprogramm -
    1000 Fördernummer BB/K014463/1
1000 Objektart article
1000 Beschrieben durch
1000 @id frl:6427047.rdf
1000 Erstellt am 2021-04-23T14:08:05.811+0200
1000 Erstellt von 122
1000 beschreibt frl:6427047
1000 Bearbeitet von 122
1000 Zuletzt bearbeitet Fri Apr 23 14:10:50 CEST 2021
1000 Objekt bearb. Fri Apr 23 14:10:08 CEST 2021
1000 Vgl. frl:6427047
1000 Oai Id
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1000 Sichtbarkeit Metadaten public
1000 Sichtbarkeit Daten public
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