scholarly journals Chemical signatures of honey bee group membership develop via a socially-modulated innate process

2018 ◽  
Author(s):  
Cassondra L. Vernier ◽  
Joshua J. Krupp ◽  
Katelyn Marcus ◽  
Abraham Hefetz ◽  
Joel D. Levine ◽  
...  
Keyword(s):  
Honey Bee ◽  
Nestmate Recognition ◽  
Cuticular Hydrocarbon ◽  
Chemical Signatures ◽  
Nestmate Recognition Cues ◽  
Group Members ◽  
Social Environmental ◽  
Social Environmental Factors ◽  
Bee Colonies ◽  
Gestalt Model

AbstractLarge social insect colonies exhibit a remarkable ability for recognizing group members via colony-specific cuticular hydrocarbon (CHC) pheromonal signatures. Previous work suggested that in some ant species colony-specific signatures are generated through a “gestalt” mechanism via the passive transfer and homogenization of CHCs across all individual members of the colony. In contrast, we demonstrate that nestmate recognition cues of worker honey bees (Apis mellifera) mature in foragers via a sequence of stereotypic age-dependent quantitative and qualitative chemical transitions, which are driven by intrinsic biosynthetic pathways. Therefore, in contrast to predictions of the “Gestalt” model, nestmate recognition cues in honey bee colonies do not represent a passive “average” signature that is carried and recognized by all colony members. Instead, specific colony members develop the relevant cues via an innately-determined developmental program that can be modulated by colony-specific social environmental factors.

scholarly journals The gut microbiome defines social group membership in honey bee colonies

2020 ◽  
Vol 6 (42) ◽  
pp. eabd3431 ◽  
Author(s):  
Cassondra L. Vernier ◽  
Iris M. Chin ◽  
Boahemaa Adu-Oppong ◽  
Joshua J. Krupp ◽  
Joel Levine ◽  
...  
Keyword(s):  
Honey Bee ◽  
Gut Microbiome ◽  
Honey Bees ◽  
Nestmate Recognition ◽  
Cuticular Hydrocarbon ◽  
Specific Chemical ◽  
Behavioral Traits ◽  
Chemical Signatures ◽  
Nestmate Recognition Cues ◽  
Bee Colonies

In the honey bee, genetically related colony members innately develop colony-specific cuticular hydrocarbon profiles, which serve as pheromonal nestmate recognition cues. Yet, despite high intracolony relatedness, the innate development of colony-specific chemical signatures by individual colony members is largely determined by the colony environment, rather than solely relying on genetic variants shared by nestmates. Therefore, it is puzzling how a nongenic factor could drive the innate development of a quantitative trait that is shared by members of the same colony. Here, we provide one solution to this conundrum by showing that nestmate recognition cues in honey bees are defined, at least in part, by shared characteristics of the gut microbiome across individual colony members. These results illustrate the importance of host-microbiome interactions as a source of variation in animal behavioral traits.

scholarly journals The cuticular hydrocarbon profiles of honey bee workers develop via a socially-modulated innate process

eLife ◽  
2019 ◽  
Vol 8 ◽  
Author(s):  
Cassondra L Vernier ◽  
Joshua J Krupp ◽  
Katelyn Marcus ◽  
Abraham Hefetz ◽  
Joel D Levine ◽  
...  
Keyword(s):  
Honey Bee ◽  
Social Insect ◽  
Cuticular Hydrocarbon ◽  
Specific Chemical ◽  
Behavioral Interactions ◽  
Age Dependent ◽  
Chemical Profiles ◽  
Group Members ◽  
Environmentally Sensitive ◽  
Honey Bee Workers

Large social insect colonies exhibit a remarkable ability for recognizing group members via colony-specific cuticular pheromonal signatures. Previous work suggested that in some ant species, colony-specific pheromonal profiles are generated through a mechanism involving the transfer and homogenization of cuticular hydrocarbons (CHCs) across members of the colony. However, how colony-specific chemical profiles are generated in other social insect clades remains mostly unknown. Here we show that in the honey bee (Apis mellifera), the colony-specific CHC profile completes its maturation in foragers via a sequence of stereotypic age-dependent quantitative and qualitative chemical transitions, which are driven by environmentally-sensitive intrinsic biosynthetic pathways. Therefore, the CHC profiles of individual honey bees are not likely produced through homogenization and transfer mechanisms, but instead mature in association with age-dependent division of labor. Furthermore, non-nestmate rejection behaviors seem to be contextually restricted to behavioral interactions between entering foragers and guards at the hive entrance.

scholarly journals Nestmate Recognition Cues in the Honey Bee: Differential Importance of Cuticular Alkanes and Alkenes

2005 ◽  
Vol 30 (6) ◽  
pp. 477-489 ◽  
Author(s):  
Francesca R. Dani ◽  
Graeme R. Jones ◽  
Silvia Corsi ◽  
Richard Beard ◽  
Duccio Pradella ◽  
...  
Keyword(s):  
Honey Bee ◽  
Nestmate Recognition ◽  
Nestmate Recognition Cues

Identification and Treatment of European Foulbrood in Honey Bee Colonies

EDIS ◽  
2020 ◽  
Vol 2020 (1) ◽  
pp. 7
Author(s):  
Catherine M. Mueller ◽  
Cameron Jack ◽  
Ashley N. Mortensen ◽  
Jamie D. Ellis
Keyword(s):  
Honey Bee ◽  
Bacterial Disease ◽  
American Foulbrood ◽  
Fact Sheet ◽  
European Foulbrood ◽  
Bee Colonies ◽  
Honey Bee Larvae

European foulbrood is a bacterial disease that affects Western honey bee larvae. It is a concern to beekeepers everywhere, though it is less serious than American foulbrood because it does not form spores, which means that it can be treated. This 7-page fact sheet written by Catherine M. Mueller, Cameron J. Jack, Ashley N. Mortensen, and Jamie Ellis and published by the UF/IFAS Entomology and Nematology Department describes the disease and explains how to identify it to help beekeepers manage their colonies effectively and prevent the spread of both American and European foulbrood.https://edis.ifas.ufl.edu/in1272

scholarly journals A-164 Influence of Executive Function, Partner Support, and Environmental Structure on Behavioral Weight Management Outcomes

2020 ◽  
Vol 35 (6) ◽  
pp. 958-958
Author(s):  
Gettens K ◽  
Gorin A
Keyword(s):  
Weight Loss ◽  
Executive Functions ◽  
Weight Management ◽  
Autonomy Support ◽  
Multilevel Models ◽  
Partner Support ◽  
Household Structure ◽  
Low Levels ◽  
Social Environmental ◽  
Social Environmental Factors

Abstract Objective Executive functions (EF) are crucial to successful weight management, yet few studies have prospectively explored the influence of social-environmental factors on the EF-weight loss (WL) link. This study examined interactions between EF, partner support, and household structure on weight loss outcomes in a couples-based intervention, grounded in Self-Determination Theory (SDT). Method Cohabitating dyads attended weekly weight loss groups (Ncouples = 64), Mage =54.0 ± 9.5, MBMI = 34.2 ± 5.4 kg/m2, 50% female, 88.8% Caucasian). Weight was measured at baseline and 6 months. The Behavior Rating Index of Executive Functions-Adult assessed 9 EF domains; higher scores indicate greater difficulty. Partner autonomy support (AS) was measured using the Important Other Climate Questionnaire, household structure with the Confusion, Hubbub, and Order Scale (CHAOS), IQ with the WASI-II 2-subscale estimate. Results Multilevel models were specified with MIXED linear function in SPSS to account for dyadic interdependence, controlling for age, education, IQ and group. Moderators (AS and CHAOS) were grand-mean centered. High and low levels were created at +1SD and -1SD. At high levels of AS, Shifting (B = 1.50, p = .01) and Inhibition (B = 2.23, p = .01) were associated with greater 6-month WL. At low levels of AS, Working Memory was associated with greater WL (p < .01). Self-Monitoring was associated with greater WL at high chaos (B = .43, p = .01), but not low chaos (p = 0.1). Conclusions Findings suggest that context matters; recruiting specific EFs may promote more WL for individuals embedded in low support or chaotic home environments. Future interventions should address the complexity of successful weight management, targeting both individual and social-interpersonal factors.

Pesticides in Honey Bee Colonies: establishing a baseline for real world exposure over seven years in the USA

2021 ◽  
pp. 116566
Author(s):  
Kirsten S. Traynor ◽  
Simone Tosi ◽  
Karen Rennich ◽  
Nathalie Steinhauer ◽  
Eva Forsgren ◽  
...  
Keyword(s):  
Honey Bee ◽  
Real World ◽  
The Usa ◽  
Bee Colonies
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