Results 191 to 200 of about 5,512 (215)
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Human Nature, 2014
For more than 100,000 years, H. sapiens lived as foragers, in small family groups with low reproductive variance. A minority of men were able to father children by two or three women; and a majority of men and women were able to breed. But after the origin of farming around 10,000 years ago, reproductive variance increased. In civilizations which began
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For more than 100,000 years, H. sapiens lived as foragers, in small family groups with low reproductive variance. A minority of men were able to father children by two or three women; and a majority of men and women were able to breed. But after the origin of farming around 10,000 years ago, reproductive variance increased. In civilizations which began
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Mammalian eusociality: a family affair
Trends in Ecology & Evolution, 1994Comparative studies of two species of mole-rat are helping to clarify the ecological correlates of mammalian eusociality. Both species live in social groups composed of close kin, within which breeding is restricted to one female and one to three males. They inhabit xeric areas with dispersed, patchy food and unpredictable rainfall.
J U, Jarvis +3 more
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Vocal flexibility in a eusocial rodent
Learning & Behavior, 2022Vocal production learning-the ability to learn new sounds-is fundamental to human communication and is also seen in many nonhuman species, including birds, bats, elephants, and marine mammals. A new paper in Science may add an unusual rodent species-the naked mole rat-to this list.
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Nature, 2011
Arising from M. A. Nowak, C. E. Tarnita & E. O. Wilson 466, 1057-1062 (2010); Nowak et al. reply. Hamilton described a selective process in which individuals affect kin (kin selection), developed a novel modelling strategy for it (inclusive fitness), and derived a rule to describe it (Hamilton's rule). Nowak et al.
Joan E. Strassmann +3 more
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Arising from M. A. Nowak, C. E. Tarnita & E. O. Wilson 466, 1057-1062 (2010); Nowak et al. reply. Hamilton described a selective process in which individuals affect kin (kin selection), developed a novel modelling strategy for it (inclusive fitness), and derived a rule to describe it (Hamilton's rule). Nowak et al.
Joan E. Strassmann +3 more
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Paternity in eusocial Hymenoptera
Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 1996Variation in paternity frequency in colonies of eusocial insects has profound effects on the relatedness among offspring and on the genetic diversity of colonies. Data on queen ‘mating-frequency’ in eusocial Hymenoptera vary in both quality and the phase of the ‘mating’ process they address. Some are observational studies of the range or maximum number
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Trends in Ecology & Evolution, 2005
researchers at NCEAS and the new National Evolutionary Synthesis Center (NESCent) and the National Ecological Observatory Network (NEON) are forging ahead with research that relies on shared data. Data shared as benchmark data sets (e.g. [10]) can kick-start innovation by providing well defined challenges to computer scientists andinformaticsexperts ...
Kevin R, Foster, Francis L W, Ratnieks
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researchers at NCEAS and the new National Evolutionary Synthesis Center (NESCent) and the National Ecological Observatory Network (NEON) are forging ahead with research that relies on shared data. Data shared as benchmark data sets (e.g. [10]) can kick-start innovation by providing well defined challenges to computer scientists andinformaticsexperts ...
Kevin R, Foster, Francis L W, Ratnieks
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Annual Review of Ecology and Systematics, 1984
Eusociality is characterized by overlapping adult generations, cooperative brood care, and more or less nonreproductive workers or helpers (96, 151). Evolutionists have long recognized that the presence of sterile workers is difficult to explain by traditional individual selection (128).
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Eusociality is characterized by overlapping adult generations, cooperative brood care, and more or less nonreproductive workers or helpers (96, 151). Evolutionists have long recognized that the presence of sterile workers is difficult to explain by traditional individual selection (128).
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Cooperation in eusocial insects
1997Abstract At the outset, I had intended this chapter to be titled “Cooperation in Insects.” I quickly realized, however, that this was probably a more appropriate title for a series of books, rather than a book chapter. At that point, “Cooperation in Insects” became “Cooperation in Social Insects,” until it became apparent that even that ...
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