Results 21 to 30 of about 2,927 (210)

Eusociality and the evolution of aging in superorganisms [PDF]

open access: yesThe American Naturalist, 2021
Abstract Eusocial insects – ants, bees, wasps and termites – are being recognized as model organisms to unravel the evolutionary paradox of aging for two reasons: (1) queens (and kings, in termites) of social insects outlive similar sized solitary insects by up to several orders of magnitude; (2) all eusocial taxa show a divergence of ...
Boris H. Kramer   +3 more
openaire   +3 more sources

Termite Valkyries: Soldier-Like Alate Termites From the Cretaceous and Task Specialization in the Early Evolution of Isoptera

open access: yesFrontiers in Ecology and Evolution, 2022
In several insect eusocial lineages, e.g., some aphids, thrips, ants, some stingless bees, and termites, task specialization is brought to its climax with a sterile soldier caste solely devoted to colony defense.
Corentin Jouault   +11 more
doaj   +1 more source

The evolution of eusociality [PDF]

open access: yesNature, 2010
Eusociality, in which some individuals reduce their own lifetime reproductive potential to raise the offspring of others, underlies the most advanced forms of social organization and the ecologically dominant role of social insects and humans. For the past four decades kin selection theory, based on the concept of inclusive fitness, has been the major ...
Abbot, Patrick   +136 more
openaire   +4 more sources

Haplodiploidy and the evolution of eusociality: split sex ratios (vol 179, pg 240, 2012) [PDF]

open access: yes, 2012
It is generally accepted that from a theoretical perspective, haplodiploidy should facilitate the evolution of eusociality. However, the "haplodiploidy hypothesis" rests on theoretical arguments that were made before recent advances in our empirical ...
West, SA   +4 more
core   +2 more sources

A mid-cretaceous origin of sociality in xylocopine bees with only two origins of true worker castes indicates severe barriers to eusociality. [PDF]

open access: yesPLoS ONE, 2012
The origin of sterile worker castes, resulting in eusociality, represents one of the major evolutionary transitions in the history of life. Understanding how eusociality has evolved is therefore an important issue for understanding life on earth. Here we
Sandra M Rehan   +2 more
doaj   +1 more source

Intra-colony venom diversity contributes to maintaining eusociality in a cooperatively breeding ant

open access: yesBMC Biology, 2023
Background Eusociality is widely considered to evolve through kin selection, where the reproductive success of an individual’s close relative is favored at the expense of its own. High genetic relatedness is thus considered a prerequisite for eusociality.
Samuel D. Robinson   +10 more
doaj   +1 more source

The Evolution of Eusociality

open access: yes, 1994
Eusocial insects are defined as those that show cooperative brood care, reproductive caste differentiation and overlap of generations. I argue that this definition is rather restrictive and has often prevented the simultaneous consideration of somewhat less social insects and cooperatively breeing birds and mammals which exhibit levels of altruism ...
Gadagkar, Raghavendra
openaire   +2 more sources

Haplodiploidy, sex-ratio adjustment, and eusociality. [PDF]

open access: yes, 2013
Hamilton's "haplodiploidy hypothesis" holds that inflated sororal relatedness has promoted altruistic sib rearing in haplodiploids, potentially explaining their apparent predisposition to eusociality.
Ross, Laura, Gardner, Andy
core   +1 more source

Eusociality: Origin and consequences [PDF]

open access: yesProceedings of the National Academy of Sciences, 2005
In this new assessment of the empirical evidence, an alternative to the standard model is proposed: group selection is the strong binding force in eusocial evolution; individual selection, the strong dissolutive force; and kin selection (narrowly defined), either a weak binding or weak dissolutive force, according to circumstance.
Edward O, Wilson, Bert, Hölldobler
openaire   +2 more sources

Evolution of eusociality [PDF]

open access: yesNature Reviews Genetics, 2018
Insulin signalling underlies the evolution and regulation of eusocial behaviours in ants, posits a recent study in Science.
openaire   +2 more sources

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