Results 41 to 50 of about 5,512 (215)

The Next Frontier in Understanding the Evolution of Coral Reef Fish Societies

open access: yesFrontiers in Marine Science, 2021
Research on sociality in marine fishes is a vibrant field that is providing new insights into social evolution more generally. Here, we review the past two decades of research, identifying knowledge gaps and new directions.
Theresa Rueger   +6 more
doaj   +1 more source

Epigenetics as an answer to Darwin’s special difficulty, Part 2: Natural selection of metastable epialleles in honeybee castes

open access: yesFrontiers in Genetics, 2015
In a recent perspective in this journal, Brian R. Herb discussed how epigenetics is a possible mechanism to circumvent Charles Darwin’s special difficulty in using natural selection to explain the existence of the sterile-fertile dimorphism in eusocial ...
Douglas Mark Ruden   +8 more
doaj   +1 more source

Alternative Nesting Strategies of Polistine Wasps in a Subtropical Locale

open access: yesInsects, 2022
Phylogenetic studies suggest that historically all paper wasps (Vespidae: Polistinae) in North America have tropical origins, but some species have adapted to survive temperate conditions.
Scott Nacko   +2 more
doaj   +1 more source

Brain microRNAs among social and solitary bees [PDF]

open access: yesRoyal Society Open Science, 2020
Evolutionary transitions to a social lifestyle in insects are associated with lineage-specific changes in gene expression, but the key nodes that drive these regulatory changes are unknown.
Karen M. Kapheim   +6 more
doaj   +1 more source

Altruism can proliferate through group/kin selection despite high random gene flow [PDF]

open access: yes, 2012
The ways in which natural selection can allow the proliferation of cooperative behavior have long been seen as a central problem in evolutionary biology. Most of the literature has focused on interactions between pairs of individuals and on linear public
A Gardner   +53 more
core   +4 more sources

The making of eusociality: insights from two bumblebee genomes. [PDF]

open access: yes, 2015
The genomes of two bumblebee species characterized by a lower level of sociality than ants and honeybees provide new insights into the origin and evolution of insect ...
Keller, L., Libbrecht, R.
core   +2 more sources

Oxytocin Manipulation Alters Neural Activity in Response to Social Stimuli in Eusocial Naked Mole-Rats

open access: yesFrontiers in Behavioral Neuroscience, 2018
The social decision-making network (SDMN) is a conserved neural circuit that modulates a range of social behaviors via context-specific patterns of activation that may be controlled in part by oxytocinergic signaling.
Mariela Faykoo-Martinez   +4 more
doaj   +1 more source

Why we age. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT Three categories of explanations exist for why we age: mechanistic theories, which omit reference to evolutionary forces; weakening force of selection theories, which posit that barriers exist that prevent evolutionary forces from optimising fitness in ageing; and optimisation theories, which posit that evolutionary forces actually select for ...
Ringel MS.
europepmc   +2 more sources

Limited social plasticity in the socially polymorphic sweat bee Lasioglossum calceatum [PDF]

open access: yes, 2018
This is the final version of the article. Available from the publisher via the DOI in this record.Eusociality is characterised by a reproductive division of labour, where some individuals forgo direct reproduction to instead help raise kin.
Davison, P, Field, JP
core   +1 more source

Evolution: Sympatric Speciation the Eusocial Way [PDF]

open access: yesCurrent Biology, 2014
Sympatric speciation normally requires particular conditions of ecological niche differentiation. However, ant social parasites have been suspected to arise sympatrically, because (dis)loyalty to eusocial kin-structures induces disruptive selection for dispersal and inbreeding. A new study documents this process in unprecedented detail.
Boomsma, Jacobus Jan   +1 more
openaire   +4 more sources

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