Article
Environmental Sciences
Malin Royset Aarones, Julie Sorlie Paus-Knudsen, Anders Nielsen, Jan Thomas Rundberget, Katrine Borga
Summary: Bumblebees exposed to clothianidin showed concentration-dependent occurrence of the compound in their head and body, but it did not bioaccumulate to elevated levels. Exposure to clothianidin did not affect mortality, brood production, nectar consumption, or size of food storage in bumblebee colonies. Visual inspection suggested higher nectar consumption of nectar with low clothianidin content compared with nectar with no or high clothianidin content.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Ecology
Florian Straub, Ihotu Joy Orih, Judith Kimmich, Manfred Ayasse
Summary: Insect species richness and abundance have declined rapidly in recent decades due to various stressors such as habitat conversion, climate change, land-use intensification, agrochemicals and pathogens. The use of the neonicotinoid clothianidin negatively impacted the foraging behavior and antennal sensitivity of two common pollinator bee species in Europe, posing a threat to their pollination and reproductive success.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2021)
Review
Environmental Sciences
Allison A. Camp, David M. Lehmann
Summary: This article examines the impact of neonicotinoids on bumble bee populations and highlights the urgent need for additional studies, especially those focusing on cellular and organ responses in bumble bees exposed to neonicotinoids. Through the AOP framework, existing literature on the adverse outcome pathways is summarized, emphasizing the importance of addressing data gaps in the bumble bee research community.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Environmental Sciences
Megan R. Sweeney, Cassandra M. Thompson, Viorel D. Popescu
Summary: Research showed that wood frog larvae exposed to 10 ppb imidacloprid did not differ in swimming behavior compared to nonexposed larvae, but exhibited slower reaction times when stimulated halfway through the experiment. This suggests that imidacloprid exposure may increase the risk of predation for pool-breeding amphibians.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2021)
Article
Environmental Sciences
Yi-Lei Qiu, Fan Wu, Li Zhang, Hu-Qiang Jiang, Jin-Tao Chen, Ying-Jia Pan, Hong-Liang Li
Summary: This study found that the OBP17 gene in A. cerana was significantly up-regulated after exposure to sublethal doses of imidacloprid. OBP17 can precisely sense sublethal doses of imidacloprid in the natural environment through its high expression in legs. The upregulation of OBP17 probably implies its involvement in the detoxification processes of A. cerana.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Cell Biology
Lisa Rother, Nadine Kraft, Dylan B. Smith, Basil el Jundi, Richard J. Gill, Keram Pfeiffer
Summary: The study presents a brain atlas for the buff-tailed bumblebee Bombus terrestris using micro-CT scans, highlighting the advantages of micro-CT technique and its potential for future neuroscience studies in bumblebees.
CELL AND TISSUE RESEARCH
(2021)
Article
Entomology
Jordan T. Ryder, Andrew Cherrill, Helen M. Thompson, Keith F. A. Walters
Summary: The performance of Bombus terrestris micro-colonies was influenced by diets with different pollen species and levels of nine essential amino acids. Higher amino acid levels were associated with stronger colony performance, but there were no consistent differences in biomass gain between mono- and poly-species diets. Micro-colony development was negatively impacted by diets with low essential amino acid levels, particularly those containing pure oilseed rape pollen.
Article
Zoology
Xi Huang, Xi-lian Xu, Ru-xu Li, Su Wang, Li-xia Tian
Summary: In this study, the morphology and distribution of the antennal sensilla of Bombus terrestris were analyzed using scanning electron microscopy. Differences in antennal length and sensilla types were found among queen, worker, and male bees. These findings provide valuable information for understanding the pollination behavior and flower preference of B. terrestris.
ZOOLOGISCHER ANZEIGER
(2023)
Article
Energy & Fuels
Rik Van Dyck, Alexandros Prapavesis, Tom Borgers, Jonathan Govaerts, Jef Poortmans, Aart W. van Vuure
Summary: The X-ray (micro-)computed tomography is a non-destructive and relatively fast visualization method for photovoltaic interconnection research. It can detect small cavities and display interconnection structures, providing valuable information for interconnection technology development.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Entomology
Chloe Sargent, Brad Ebanks, Ian C. W. Hardy, T. G. Emyr Davies, Lisa Chakrabarti, Reinhard Stoeger
Summary: The neonicotinoid imidacloprid has negative effects on mitochondrial function and flight activity in pollinating bees, particularly in the flight muscles. Acute exposure increases routine oxygen consumption in worker bees' flight muscles, potentially leading to early declines in flight activity. Additionally, imidacloprid appears to increase the maximum electron transport capacity in the brain, but further research is needed to conclusively determine the effects on brain mitochondria.
FRONTIERS IN INSECT SCIENCE
(2021)
Article
Energy & Fuels
Nan Jiang, Zilu Zhang, Guohui Qu, Jiqiang Zhi, Rongzhou Zhang
Summary: Fracture-flooding technology plays a significant role in improving the recovery efficiency of class III reservoirs.
Article
Humanities, Multidisciplinary
Joerg Stelzner, Ingrid Stelzner, Jorge Martinez-Garcia, Damian Gwerder, Markus Wittkoepper, Waldemar Muskalla, Anja Cramer, Guido Heinz, Markus Egg, Philipp Schuetz
Summary: This study used structured-light 3D scanning and micro-computed tomography to analyze the dimensional stability and long-term stability of wood after conservation. Through a comparative study of 83 samples, the researchers investigated the effects of various common conservation methods on dimensional stability and attempted to quantify the damage patterns.
Review
Imaging Science & Photographic Technology
Kleoniki Keklikoglou, Christos Arvanitidis, Georgios Chatzigeorgiou, Eva Chatzinikolaou, Efstratios Karagiannidis, Triantafyllia Koletsa, Antonios Magoulas, Konstantinos Makris, George Mavrothalassitis, Eleni-Dimitra Papanagnou, Andreas S. Papazoglou, Christina Pavloudi, Ioannis P. Trougakos, Katerina Vasileiadou, Angeliki Vogiatzi
Summary: This review discusses the strengths and weaknesses of common imaging techniques in biological and biomedical fields, while emphasizing the ability of micro-CT to create non-destructively 3D anatomical and morphological data in sub-micron resolution. The necessity to develop complementary methods with other imaging techniques to overcome limitations caused by each technique is also highlighted.
JOURNAL OF IMAGING
(2021)
Article
Materials Science, Multidisciplinary
Cyril Besnard, Robert A. Harper, Thomas E. J. Moxham, Jonathan D. James, Malte Storm, Enrico Salvati, Gabriel Landini, Richard M. Shelton, Alexander M. Korsunsky
Summary: This study reports significant advances in analyzing synchrotron 3D datasets of human dental enamel, highlighting the differences in structural features between healthy and carious enamel. The study demonstrates a new method for studying dental lesions and their potential applications.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Dentistry, Oral Surgery & Medicine
Ana Victoria Lopes Bandeira, Marina de Deus Moura de Lima, Cacilda Castelo Branco Lima, Marcoeli Silva de Moura, Altair Antoninha Del Bel Cury, Lucia de Fatima Almeida de Deus Moura
Summary: The study aimed to determine the frequency, shape, type, diameter, and patency of accessory canals in the pulp chamber floor of primary molars in vitro. Results showed that half of the teeth had accessory canals, with a higher frequency in upper molars and larger diameters. The irregular shape was the most common, and some accessory canals exhibited patency.
PESQUISA BRASILEIRA EM ODONTOPEDIATRIA E CLINICA INTEGRADA
(2021)
Article
Biochemistry & Molecular Biology
Thomas J. Colgan, Isabel K. Fletcher, Andres N. Arce, Richard J. Gill, Ana Ramos Rodrigues, Eckart Stolle, Lars Chittka, Yannick Wurm
Article
Ecology
Daniel Kenna, Hazel Cooley, Ilaria Pretelli, Ana Ramos Rodrigues, Steve D. Gill, Richard J. Gill
ECOLOGY AND EVOLUTION
(2019)
Article
Entomology
Ash E. Samuelson, Richard J. Gill, Ellouise Leadbeater
Article
Cell Biology
Lisa Rother, Nadine Kraft, Dylan B. Smith, Basil el Jundi, Richard J. Gill, Keram Pfeiffer
Summary: The study presents a brain atlas for the buff-tailed bumblebee Bombus terrestris using micro-CT scans, highlighting the advantages of micro-CT technique and its potential for future neuroscience studies in bumblebees.
CELL AND TISSUE RESEARCH
(2021)
Article
Ecology
Daniel Kenna, Samraat Pawar, Richard J. Gill
Summary: This study focused on the effects of environmental temperature on the flight performance of Bumblebees and found that temperature significantly impacted flight endurance and capabilities. Additionally, the study revealed that there were variations in flight capacity based on worker size, highlighting the importance of considering body mass distribution in understanding colony foraging success under variable thermal environments. The findings suggest that smaller-bodied insects may benefit disproportionately more from warming in terms of flight performance.
FUNCTIONAL ECOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Thomas J. Colgan, Andres N. Arce, Richard J. Gill, Ana Ramos Rodrigues, Abdoulie Kanteh, Elizabeth J. Duncan, Li Li, Lars Chittka, Yannick Wurm
Summary: This study analyzed the genomes of Bombus terrestris bumblebees in Great Britain and found genetic diversity within the population as well as signatures of recent adaptation affecting key processes. Unusual genomic features were also discovered, indicating the resilience of this pollinator species to future pressures. Applying this approach to other species can help understand their adaptive potential and develop conservation strategies.
MOLECULAR BIOLOGY AND EVOLUTION
(2022)
Article
Ecology
Andres N. Arce, Aoife Cantwell-Jones, Michael Tansley, Ian Barnes, Selina Brace, Victoria E. Mullin, David Notton, Jeff Ollerton, Emma Eatough, Marcus W. Rhodes, Xueni Bian, James Hogan, Tony Hunter, Simon Jackson, Ashleigh Whiffin, Vladimir Blagoderov, Gavin Broad, Steve Judd, Phaedra Kokkini, Laurence Livermore, Mahika K. Dixit, William D. Pearse, Richard J. Gill
Summary: Determining past stress in animal populations is crucial for understanding species' responses to environmental change. This study used bumblebee specimens to detect morphological proxies of stress and found that fluctuating asymmetry significantly increased over the 20th century, with warm and wet years associated with higher asymmetry. These findings provide important insights into how climate change could impact future populations of wild beneficial insects.
JOURNAL OF ANIMAL ECOLOGY
(2023)
Article
Ecology
Victoria E. Mullin, William Stephen, Andres N. Arce, Will Nash, Calum Raine, David G. Notton, Ashleigh Whiffin, Vladimir Blagderov, Karim Gharbi, James Hogan, Tony Hunter, Naomi Irish, Simon Jackson, Steve Judd, Chris Watkins, Wilfried Haerty, Jeff Ollerton, Selina Brace, Richard J. Gill, Ian Barnes
Summary: Insect declines have significant ecological and economic ramifications, but the genomic impact of these losses is poorly understood. This study demonstrates how Next-Generation Sequencing methods can be used to analyze the preservation of DNA in museum specimens and provides insights into the rate of DNA decay over time. The findings show that historical insects can serve as valuable sources of genetic information, as long as the degraded nature of DNA is accounted for.
METHODS IN ECOLOGY AND EVOLUTION
(2023)
Article
Biodiversity Conservation
Daniel Kenna, Peter Graystock, Richard J. Gill
Summary: Climate change and agricultural intensification are affecting insect pollinators through temperature extremes and increased pesticide usage. However, the quantification of temperature's influence on the sublethal effects of pesticides on essential behaviors for fitness and pollination is lacking. It is important to understand how warming affects different pesticide impacts and behaviors for accurate pesticide risk assessment and pollinator conservation.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Food Science & Technology
Pauline Adriaanse, Andres Arce, Andreas Focks, Brecht Ingels, Daniela Joelli, Sebastien Lambin, Maj Rundloef, Dirk Suessenbach, Monica Del Aguila, Valeria Ercolano, Franco Ferilli, Alessio Ippolito, Csaba Szentes, Franco Maria Neri, Laura Padovani, Agnes Rortais, Jacoba Wassenberg, Domenica Auteri
Summary: The European Commission has requested the European Food Safety Authority (EFSA) to update the risk assessment of honey bees, bumble bees, and solitary bees. This guidance document provides instructions for conducting risk assessment on bees exposed to plant protection products, in compliance with Regulation (EU) 1107/2009. It is a revision of EFSA's previous guidance document published in 2013. The document outlines a tiered approach for estimating exposure levels in different scenarios and tiers, including hazard characterization, dietary and contact exposure assessment. Additionally, it offers recommendations for higher tier studies, the risk posed by metabolites and mixtures of plant protection products.
Article
Ecology
Jacob Johansson, Andres N. Arce, Richard J. Gill
Summary: Annual social insects, like bees and wasps, have a social phase where the queen rears workers to assist her in rearing sexual progeny. We present a model that explains how the queen should optimize her egg-laying rate based on trade-offs, colony age-structure, and energy balance. Resource competition among overlapping larval generations can influence optimal egg-laying strategies. Our analysis provides insights into understanding colony development strategies in annual social insects.