Results 41 to 50 of about 2,927 (210)

Immune competence and spleen size scale with colony status in the naked mole-rat

open access: yesOpen Biology, 2022
Naked mole-rats (NM-R; Heterocephalus glaber) live in multi-generational colonies with a social hierarchy, and show low cancer incidence and long life-spans. Here we asked if an immune component might underlie such extreme physiology.
Valérie Bégay   +6 more
doaj   +1 more source

Data_Sheet_1_Life History and the Transitions to Eusociality in the Hymenoptera.docx

open access: yes, 2021
Although indirect selection through relatives (kin selection) can explain the evolution of effectively sterile offspring that act as helpers at the nest (eusociality) in the ants, bees, and stinging wasps (aculeate Hymenoptera), the genetic, ecological ...
Jack da Silva (3250689)
core   +1 more source

What Kills the Hindgut Flagellates of Lower Termites during the Host Molting Cycle?

open access: yesMicroorganisms, 2017
Subsocial wood feeding cockroaches in the genus Cryptocercus, the sister group of termites, retain their symbiotic gut flagellates during the host molting cycle, but in lower termites, closely related flagellates die prior to host ecdysis.
Christine A. Nalepa
doaj   +1 more source

Table_4_Life History and the Transitions to Eusociality in the Hymenoptera.XLSX

open access: yes, 2021
Although indirect selection through relatives (kin selection) can explain the evolution of effectively sterile offspring that act as helpers at the nest (eusociality) in the ants, bees, and stinging wasps (aculeate Hymenoptera), the genetic, ecological ...
Jack da Silva (3250689)
core   +1 more source

Discrete but variable structure of animal societies leads to the false perception of a social continuum [PDF]

open access: yesRoyal Society Open Science, 2016
Animal societies are typically divided into those in which reproduction within a group is monopolized by a single female versus those in which it is shared among multiple females.
Dustin R. Rubenstein   +2 more
doaj   +1 more source

Social Evolution With Decoupling of Multiple Roles of Biogenic Amines Into Different Phenotypes in Hymenoptera

open access: yesFrontiers in Ecology and Evolution, 2021
Convergent evolution of eusociality with the division of reproduction and its plastic transition in Hymenoptera has long attracted the attention of researchers.
Ken Sasaki   +5 more
doaj   +1 more source

Evolution of eusociality in termites [PDF]

open access: yesProceedings of the National Academy of Sciences, 1979
A model is presented that demonstrates that asymmetries in relatedness such that individuals are more closely related to siblings than to offspring develop in diploid pedigrees under conditions of inbreeding. Given also certain incestuous conditions, the model predicts that eusocial-type helping behavior can be favored by natural selection. Three cases
openaire   +2 more sources

Antagonistic pleiotropy and the evolution of extraordinary lifespans in eusocial organisms

open access: yesEvolution Letters, 2021
Queens of eusocial species live extraordinarily long compared to their workers. So far, it has been argued that these lifespan divergences are readily explained by the classical evolutionary theory of ageing. As workers predominantly perform risky tasks,
Jan J. Kreider, Ido Pen, Boris H. Kramer
doaj   +1 more source

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

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

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