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Articles by Ellouise Leadbeater
Resource supplementation later in the colony cycle improves real‐world bumblebee colony survival
1 INTRODUCTION Pollinators are a lynchpin of global food supply, approximately one-third of which is contributed by bee-pollinated crops (Khalifa et al., 2021). Despite this, there is extensive evidence that the agricultural intensification required to feed the expanding human population is a major driver of pollinator decline (Aizen et al., 2022; Goulson et al., 2008, 2015; Murray et al., 2009).
Long-term memory formation impacts dietary energy intake but not metabolic rate in honeybees
Abstract The brain is energetically expensive. Energy availability may, therefore, determine whether costly cognitive processes such as long-term memory can be expressed. However, there is a limited understanding of the metabolic costs associated with long-term memory formation. Here, we explored the potential induced costs of long-term memory formation using honeybees (Apis mellifera) as a model species.
Foraging distance distributions reveal how honeybee waggle dance recruitment varies with landscape - Communications Biology
Abstract Honeybee (Apis mellifera) colonies use a unique collective foraging system, the waggle dance, to communicate and process the location of resources. Here, we present a means to quantify the effect of recruitment on colony forager allocation across the landscape by simply observing the waggle dance on the dancefloor.
A neural correlate of learning fails to predict foraging efficiency in Bombus terrestris.
Abstract The mushroom bodies (MB) are integrative structures in the insect brain that, in social bees, contribute to both visual and olfactory learning. Changes in the density of presynaptic boutons (or microglomeruli) within the calyx region of the MB have been repeatedly linked to various aspects of foraging, including forms of learning that are thought to be key to support foraging efficiency.
Improving pesticide-use data for the EU - Nature Ecology & Evolution
To the Editor — Access to pesticide-use data is essential to accurately evaluate the adverse effects of pesticides on human and ecosystem health. In Europe, applicators are usually required to record the location and date of pesticide applications1. A subset of these data is periodically sampled to produce heavily aggregated estimates of pesticide use, with spatial data reported to a national level.
Lower bumblebee colony reproductive success in agricultural compared with urban environments
1. Background We are living in the ‘Urban Age’ [1]: over half the world's human population currently resides in cities [2] and an estimated threefold increase in global urban land cover is predicted between 2000 and 2030 [3]. Although urbanization has been shown to impact negatively upon species abundance and diversity for many taxa [4], some groups successfully exploit anthropogenic habitats [5] and there is evidence to place wild bees among this number.
Honeybee Communication: There’s More on the Dancefloor
Honeybees transmit food-related information to nestmates via waggle dances and food-sharing. A new study reveals that learning about food scents can also be mediated by social contact alone, suggesting unexpected complexity in honeybee foraging networks. To read this article in full you will need to make a payment Purchase one-time access Read-It-Now Purchase access to all full-text HTML articles for 6 or 36 hr at a low cost. Click here to explore this opportunity.
Sulfoxaflor exposure reduces bumblebee reproductive success
1. Foley, J. A. et al. Global consequences of land use. Science 309, 570–574 (2005). 2. Tilman, D., Cassman, K. G., Matson, P. A., Naylor, R. & Polasky, S. Agricultural sustainability and intensive production practices. Nature 418, 671–677 (2002). 3. Simon-Delso, N. et al. Systemic insecticides (neonicotinoids and fipronil): trends, uses, mode of action and metabolites. Environ. Sci. Pollut. Res. Int. 22, 5–34 (2015). 4. Woodcock, B. A. et al.
Quantifying the impact of pesticides on learning and memory in bees
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A social insect perspective on the evolution of social learning mechanisms
The social world offers a wealth of opportunities to learn from others, and across the animal kingdom individuals capitalize on those opportunities. Here, we explore the role of natural selection in shaping the processes that underlie social information use, using a suite of experiments on social insects as case studies.
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