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CO-EVOLUTION IN SOCIAL INTERACTIONS [PDF]
An interesting problem which has been widely investigated is under what circumstances will a society of rational agents realize some particular stable situations, and whether they satisfy the condition of social efficiency? This will crucially depend on how they interact and what information they have when they interact.
Hiroshi Sato, Akira Namatame
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The evolution of sociality and the polyvagal theory
The polyvagal theory (PT), offered by Porges (2021), proposes that the autonomic nervous system (ANS) was repurposed in mammals, via a second vagal nerve, to suppress defensive strategies and support the expression of sociality. Three critical assumptions of this theory are that (1) the transition of the ANS was associated with the evolution of social ...
Doody, J. Sean +2 more
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Relaxed selection underlies genome erosion in socially parasitic ant species
Many obligate symbionts, including parasites, have reduced genomes. A comparison of leaf-cutter ant genomes reveals parallel gene losses, particularly in olfactory receptors, in socially parasitic species compared to their closely-related hosts ...
Lukas Schrader +9 more
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The symbiotic partnership between leaf-cutting ants and fungal cultivars processes plant biomass via ant fecal fluid mixed with chewed plant substrate before fungal degradation.
Morten Schiøtt, Jacobus J Boomsma
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Joint evolution of multiple social traits: a kin selection analysis [PDF]
General models of the evolution of cooperation, altruism and other social behaviours have focused almost entirely on single traits, whereas it is clear that social traits commonly interact.
Brown, Sam P., Taylor, Peter D.
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Hormonal pleiotropy helps maintain queen signal honesty in a highly eusocial wasp
In insect societies, both queens and workers produce chemicals that reliably signal caste membership and reproductive status. The mechanisms that help to maintain the honesty of such queen and fertility signals, however, remain poorly studied.
Ricardo Caliari Oliveira +6 more
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Host plant use drives genetic differentiation in syntopic populations of Maculinea alcon [PDF]
The rare socially parasitic butterfly Maculinea alcon occurs in two forms, which are characteristic of hygric or xeric habitats and which exploit different host plants and host ants.
András Tartally +3 more
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The Evolution of Social Norms [PDF]
Social norms are patterns of behavior that are self-enforcing within a group: Everyone conforms, everyone is expected to conform, and everyone wants to conform when they expect everyone else to conform. Social norms are often sustained by multiple mechanisms, including a desire to coordinate, fear of being sanctioned, signaling membership in a group ...
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Change in freshwater availability is arguably one of the most pressing issues associated with global change. Agriculture, which uses roughly 70% of the total global freshwater supply, figures prominently among sectors that may be adversely affected by ...
Oguzhan Cifdaloz +3 more
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Hydrocarbon Signatures of the Ectoparasitoid Sphecophaga vesparum Shows Wasp Host Dependency
Sphecophaga vesparum often parasitizes nests of vespid wasps such as Vespula vulgaris and Vespula germanica. Inside the colonies, the ectoparasitic larvae feed on the immature forms of the wasps. There are two adult forms of S. vesparum.
Cintia Akemi Oi +3 more
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