Charlie Nicholson
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View article: Pesticides and habitat loss additively reduce wild bees in crop fields
Pesticides and habitat loss additively reduce wild bees in crop fields Open
Pesticide use and habitat loss are major anthropogenic drivers of bee decline, raising global concerns about impaired crop pollination. However, the relative importance of these stressors and their combined impact on bee assemblages compri…
View article: Does Increasing Crop Diversity in Time and Space Lead to Improved Biodiversity in Agricultural Landscapes? : A systematic review protocol
Does Increasing Crop Diversity in Time and Space Lead to Improved Biodiversity in Agricultural Landscapes? : A systematic review protocol Open
Systematic compilation of scientific evidence to inform decision-making is a way to improve both effectiveness and efficiency of decision support. Systematic reviews have come to be considered the gold standard for such evidence compilatio…
View article: Wild bees mediate fruit quality via seed set in highbush blueberry: A quantitative synthesis
Wild bees mediate fruit quality via seed set in highbush blueberry: A quantitative synthesis Open
Insect-mediated pollination enhances global production of many crops, and evidence highlights that insect pollination can also improve crop quality. The link between insect-mediated pollination and crop quality is driven not only by insect…
View article: Out of site, out of mind? Considering pesticide drift and plant mutualisms
Out of site, out of mind? Considering pesticide drift and plant mutualisms Open
This article is a Commentary on Baucom et al . (2025), 247 : 850–862 .
View article: Wild Bees Drive Fruit Quality Indirectly Via Seed Set in Highbush Blueberry: A Quantitative Synthesis
Wild Bees Drive Fruit Quality Indirectly Via Seed Set in Highbush Blueberry: A Quantitative Synthesis Open
View article: Pollination Across the Diel Cycle: A Global Meta‐Analysis
Pollination Across the Diel Cycle: A Global Meta‐Analysis Open
The daily transition between day and night, known as the diel cycle, is characterised by significant shifts in environmental conditions and biological activity, both of which can affect crucial ecosystem functions like pollination. Despite…
View article: Pollination across the diel cycle: a global meta-analysis
Pollination across the diel cycle: a global meta-analysis Open
The daily transition between day and night, known as the diel cycle, is characterised by significant shifts in environmental conditions and biological activity, both of which can affect crucial ecosystem functions like pollination. Yet, de…
View article: Landscapes of risk: A comparative analysis of landscape metrics for the ecotoxicological assessment of pesticide risk to bees
Landscapes of risk: A comparative analysis of landscape metrics for the ecotoxicological assessment of pesticide risk to bees Open
Pesticide use in agricultural landscapes creates environmental contamination that is heterogenous in space and time. Mobile organisms, such as bees, are exposed to multiple contamination sources when visiting patches that vary in the amoun…
View article: Pesticide use negatively affects bumble bees across European landscapes
Pesticide use negatively affects bumble bees across European landscapes Open
View article: Synthesis of highbush blueberry pollination research reveals region‐specific differences in the contributions of honeybees and wild bees
Synthesis of highbush blueberry pollination research reveals region‐specific differences in the contributions of honeybees and wild bees Open
Highbush blueberry production has expanded worldwide in recent decades. To safeguard future yields, it is essential to understand if insect pollination is limiting current blueberry production and which insects contribute to pollination in…
View article: Pollination supply models from a local to global scale
Pollination supply models from a local to global scale Open
Ecological intensification has been embraced with great interest by the academic sector but is still rarely taken up by farmers because monitoring the state of different ecological functions is not straightforward. Modelling tools can repr…
View article: NutriNet: country-level nutrient totals
NutriNet: country-level nutrient totals Open
These data contain 684,330 records the total amount (kg) of a nutrient available per year in a given country. To derive country-level nutrient totals, we summed nutrient quantities across crops for a given country, year, and source for eac…
View article: NutriNet: crop names lookup table
NutriNet: crop names lookup table Open
Look up table to match crop names between 1) crop supply data from the Statistics Division of the Food and Agriculture Organization of the United Nations (FAOSTAT) and 2) crop-specific nutrient content estimates from the Global Expanded Nu…
View article: NutriNet: crop-level nutrient amounts
NutriNet: crop-level nutrient amounts Open
These data contain 1,017,887 records of the available amount of a nutrient (kg) per crop per year in a given country. These data are generated by combing two publicly available databases: 1) crop supply data from the Statistics Division of…
View article: Pollination services are resilient to an extreme climatic event and mitigate crop yield declines
Pollination services are resilient to an extreme climatic event and mitigate crop yield declines Open
Extreme climatic events pose a threat to pollinators and their ecosystem services to agriculture. Yet little remains known on how pollinator communities respond to many climate shocks and experimental studies on crop pollination remain wor…
View article: Ecological traits interact with landscape context to determine bees’ pesticide risk
Ecological traits interact with landscape context to determine bees’ pesticide risk Open
Widespread contamination of ecosystems with pesticides threatens non-target organisms. However, the extent to which life-history traits affect pesticide exposure and resulting risk in different landscape contexts remains poorly understood.…
View article: Lonsdorf_etal_2023_ObservedPredicted_exposure
Lonsdorf_etal_2023_ObservedPredicted_exposure Open
These data include observed pesticide residues in pollens gathered by bumble bees (Bombus vosnesenskii) returning to colonies across 14 spatially independent landscapes in Northern California. These data were used to evaluate…
View article: NicholsonKnapp_etal_2023_BombusPesticideEffects
NicholsonKnapp_etal_2023_BombusPesticideEffects Open
In each of eight European countries (Estonia, Germany, Ireland, Italy, Spain, Sweden, Switzerland, United Kingdom) we selected 16 sites split evenly between two focal crops (Apple: N = 64, Oilseed: N = 64) following a predefined PoshBee pr…
View article: A Spatially Explicit Model of Landscape Pesticide Exposure to Bees: Development, Exploration, and Evaluation
A Spatially Explicit Model of Landscape Pesticide Exposure to Bees: Development, Exploration, and Evaluation Open
View article: Mapping connectivity and conservation opportunity on agricultural lands across the conterminous United States
Mapping connectivity and conservation opportunity on agricultural lands across the conterminous United States Open
Depending on management practices, agricultural lands can either pose substantial barriers to the movement of native species or can support landscape connectivity by linking areas of high-quality habitat. Balancing connectivity and sustain…
View article: Supporting Data: Ecological traits interact with landscape context to determine bees' pesticide risk
Supporting Data: Ecological traits interact with landscape context to determine bees' pesticide risk Open
Rationale We conducted our study in Scania, Southern Sweden, an intensively farmed European production region. The selected sites cover multiple mass-flowering crops and agricultural contexts representing temperate agricul…
View article: Pollination services are resilient to an extreme climatic event and mitigate crop yield declines
Pollination services are resilient to an extreme climatic event and mitigate crop yield declines Open
Data availability for statistical analysis carried out for Pollination services are resilient to an extreme climatic event and mitigate crop yield declines under consideration in the Journal of Applied Ecology. Datasets (.txt, .cs…
View article: <scp>CropPol</scp>: A dynamic, open and global database on crop pollination
<span>CropPol</span>: A dynamic, open and global database on crop pollination Open
Seventy five percent of the world's food crops benefit from insect pollination. Hence, there has been increased interest in how global change drivers impact this critical ecosystem service. Because standardized data on crop pollination are…
View article: Assessing the Impacts of Potential Interventions on Vegetable Consumption in Urban Kenya Using Participatory Systems Modelling
Assessing the Impacts of Potential Interventions on Vegetable Consumption in Urban Kenya Using Participatory Systems Modelling Open
The Global Alliance for Improved Nutrition (GAIN) is a Swiss-based foundation launched at the UN in 2002 to tackle the human suffering caused by malnutrition.Working with governments, businesses and civil society, we aim to transform food …
View article: A meta‐analysis of single visit pollination effectiveness comparing honeybees and other floral visitors
A meta‐analysis of single visit pollination effectiveness comparing honeybees and other floral visitors Open
Premise Many animals provide ecosystem services in the form of pollination including honeybees, which have become globally dominant floral visitors. A rich literature documents considerable variation in single visit pollination effectivene…
View article: Global relationships between crop diversity and nutritional stability
Global relationships between crop diversity and nutritional stability Open
View article: Cropland heterogeneity drives frequency and intensity of pesticide use
Cropland heterogeneity drives frequency and intensity of pesticide use Open
Agricultural landscapes across the planet have replaced natural habitat with crop production that is less diverse at field and landscape scales. Loss of cropland heterogeneity can increase pest colonization rates and decrease predation rat…
View article: Projected losses of ecosystem services in the US disproportionately affect non-white and lower-income populations
Projected losses of ecosystem services in the US disproportionately affect non-white and lower-income populations Open
Addressing how ecosystem services (ES) are distributed among groups of people is critical for making conservation and environmental policy-making more equitable. Here, we evaluate the distribution and equity of changes in ES benefits acros…
View article: A meta-analysis of single visit pollination effectiveness
A meta-analysis of single visit pollination effectiveness Open
Many animals provide essential ecosystem services in the form of plant pollination. A rich literature documents considerable variation in the single visit pollination effectiveness of different plant visitors, but this literature has yet t…
View article: SMD_values_AverageEffectivePollination
SMD_values_AverageEffectivePollination Open
These data include Standardized mean differences (SMD, i.e. Hedges g) for different measures of single visit effectiveness (SVE) between Apis mellifera and the average difference between honeybees and non-honeybee taxa (AEP) for each uniqu…