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A model of wild bee populations accounting for spatial heterogeneity and climate-induced temporal variability of food resources at the landscape level

Blasi, Maria LU ; Clough, Yann LU ; Jönsson, Anna Maria LU and Sahlin, Ullrika LU orcid (2022) In Ecology and Evolution 12(6).
Abstract

The viability of wild bee populations and the pollination services that they provide are driven by the availability of food resources during their activity period and within the surroundings of their nesting sites. Changes in climate and land use influence the availability of these resources and are major threats to declining bee populations. Because wild bees may be vulnerable to interactions between these threats, spatially explicit models of population dynamics that capture how bee populations jointly respond to land use at a landscape scale and weather are needed. Here, we developed a spatially and temporally explicit theoretical model of wild bee populations aiming for a middle ground between the existing mapping of visitation... (More)

The viability of wild bee populations and the pollination services that they provide are driven by the availability of food resources during their activity period and within the surroundings of their nesting sites. Changes in climate and land use influence the availability of these resources and are major threats to declining bee populations. Because wild bees may be vulnerable to interactions between these threats, spatially explicit models of population dynamics that capture how bee populations jointly respond to land use at a landscape scale and weather are needed. Here, we developed a spatially and temporally explicit theoretical model of wild bee populations aiming for a middle ground between the existing mapping of visitation rates using foraging equations and more refined agent-based modeling. The model is developed for Bombus sp. and captures within-season colony dynamics. The model describes mechanistically foraging at the colony level and temporal population dynamics for an average colony at the landscape level. Stages in population dynamics are temperature-dependent triggered by a theoretical generalized seasonal progression, which can be informed by growing degree days. The purpose of the LandscapePhenoBee model is to evaluate the impact of system changes and within-season variability in resources on bee population sizes and crop visitation rates. In a simulation study, we used the model to evaluate the impact of the shortage of food resources in the landscape arising from extreme drought events in different types of landscapes (ranging from different proportions of semi-natural habitats and early and late flowering crops) on bumblebee populations.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
agricultural landscape, drought, land-use, phenology, pollination services, wild bees
in
Ecology and Evolution
volume
12
issue
6
article number
e9014
publisher
Wiley-Blackwell
external identifiers
  • scopus:85133134738
  • pmid:35784045
ISSN
2045-7758
DOI
10.1002/ece3.9014
language
English
LU publication?
yes
id
b1ac468d-521b-4c89-bb1a-646fe5c8f013
date added to LUP
2022-09-06 11:10:19
date last changed
2024-06-22 02:48:58
@article{b1ac468d-521b-4c89-bb1a-646fe5c8f013,
  abstract     = {{<p>The viability of wild bee populations and the pollination services that they provide are driven by the availability of food resources during their activity period and within the surroundings of their nesting sites. Changes in climate and land use influence the availability of these resources and are major threats to declining bee populations. Because wild bees may be vulnerable to interactions between these threats, spatially explicit models of population dynamics that capture how bee populations jointly respond to land use at a landscape scale and weather are needed. Here, we developed a spatially and temporally explicit theoretical model of wild bee populations aiming for a middle ground between the existing mapping of visitation rates using foraging equations and more refined agent-based modeling. The model is developed for Bombus sp. and captures within-season colony dynamics. The model describes mechanistically foraging at the colony level and temporal population dynamics for an average colony at the landscape level. Stages in population dynamics are temperature-dependent triggered by a theoretical generalized seasonal progression, which can be informed by growing degree days. The purpose of the LandscapePhenoBee model is to evaluate the impact of system changes and within-season variability in resources on bee population sizes and crop visitation rates. In a simulation study, we used the model to evaluate the impact of the shortage of food resources in the landscape arising from extreme drought events in different types of landscapes (ranging from different proportions of semi-natural habitats and early and late flowering crops) on bumblebee populations.</p>}},
  author       = {{Blasi, Maria and Clough, Yann and Jönsson, Anna Maria and Sahlin, Ullrika}},
  issn         = {{2045-7758}},
  keywords     = {{agricultural landscape; drought; land-use; phenology; pollination services; wild bees}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Ecology and Evolution}},
  title        = {{A model of wild bee populations accounting for spatial heterogeneity and climate-induced temporal variability of food resources at the landscape level}},
  url          = {{http://dx.doi.org/10.1002/ece3.9014}},
  doi          = {{10.1002/ece3.9014}},
  volume       = {{12}},
  year         = {{2022}},
}