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Social contracts in wasp societies

Nature, 1992
THE stability of social groups requires that conflicts among group members somehow be resolved. Recent models predict that sub-ordinates may be allowed limited reproduction by dominant colony-mates as an inducement to stay and aid dominants1– For such 'social contracts' to be evolutionarily stable, attempted reproductive cheating by dominants must be ...
Hudson K. Reeve, Peter Nonacs
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Pheromones in Social Wasps

2010
Social wasps need an efficient communication system to coordinate their members in the numerous activities of the colony. In this regard, the chemical channel is the most utilized by social wasps to transfer information in intraspecific (pheromones) and interspecific (allomones) communication.
Bruschini C.   +2 more
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Visual Recognition in Social Wasps

2015
Social recognition, i.e. the ability to recognize and assign individual membership to a particular and relevant class, such as caste, dominance status, gender or colony, shapes the amazing organization of insect societies. Traditionally, it has been assumed that social recognition in social insects is mainly governed by chemicals.
CERVO, RITA   +2 more
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Social Wasp Sampling Methods

2020
In this chapter we describe and evaluate sampling methods used in the study of Neotropical social wasps. In this chapter, the main active and passive sampling techniques used in studies of social wasp diversity are presented. Topics include studies of biodiversity (wasp species richness and abundance), locating colonies in the field, collecting and ...
Fábio Prezoto   +3 more
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Sociality in Wasps

2017
Wasps encompass solitary, communal, and facultative, obligate, and swarm-founding social species and are important model organisms for study of the origin and elaboration of insect sociality. Common names for social species are hover wasps, paper wasps, yellowjackets, hornets, and swarm-founding wasps. Excepting a few communal species, all social wasps
Hunt, James, Toth, Amy
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Catecholamines in social wasps

Comparative Biochemistry and Physiology Part A: Physiology, 1974
Abstract 1. 1. Various tissues originating from several species of social wasps showed significant amounts of catecholamines (noradrenaline, adrenaline, dopamine and 5-hydroxytryptamine). 2. 2. Dopamine proved to be the most abundant among the catecholamines examined. 3. 3.
Jacob Ishay   +3 more
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Emerging patterns in social wasp invasions

Current Opinion in Insect Science, 2021
Invasive species are a main driver of biodiversity loss and ecological change globally. Consequently, there is a need to understand how invaders damage ecosystems and to develop effective management strategies. Social wasps (Hymenoptera: Vespidae) include some of the world's most ecologically damaging invasive insects.
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DISTANCES, ASSUMPTIONS AND SOCIAL WASPS

Cladistics, 1992
The use of distance data in phylogenetic inference retains adherents in molecular systematics, despite the well-established cladistic critique of distances. Molecular distance matrices have been supposed to measure evolutionary divergence; how- ever, trees based upon analyses of such matrices are generally uninterpretable as doing so-under realistic ...
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TESTING SCENARIOS: WASP SOCIAL BEHAVIOR

Cladistics, 1989
Abstract— A complex evolutionary model is tested with a cladistic approach. Cladograms constructed for all of the genera of social Vespidae are optimized for characters associated with social behavior. The character state assignments to the interior nodes are compared with the stages envisioned in the “polygynous family” hypothesis for the evolution of
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The thermogenic center in social wasps

Journal of Electron Microscopy, 2006
In the social wasps Vespa orientalis and Paravespula germanica (Hymenoptera, Vespinae), a thermogenic center has been found in the dorsal part of the first thoracic segment. The temperature in this region of the prothorax is higher by 6-9 degrees C than that at the tip of the abdomen, and this in actively flying hornets outside the nest (workers, males
Jacob S, Ishay   +5 more
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