Search Results - "Lummaa, Virpi"

Evolution of sex differences in lifespan and aging: Causes and constraints by Maklakov, Alexei A, Lummaa, Virpi

“…Why do the two sexes have different lifespans and rates of aging? Two hypotheses based on asymmetric inheritance of sex chromosomes (“unguarded X”) or…”
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The transition to modernity and chronic disease: mismatch and natural selection by Corbett, Stephen, Courtiol, Alexandre, Lummaa, Virpi, Moorad, Jacob, Stearns, Stephen

“…The Industrial Revolution and the accompanying nutritional, epidemiological and demographic transitions have profoundly changed human ecology and biology,…”
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Does the contraceptive pill alter mate choice in humans? by Alvergne, Alexandra, Lummaa, Virpi

“…Female and male mate choice preferences in humans both vary according to the menstrual cycle. Women prefer more masculine, symmetrical and genetically…”
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Sibling competition, dispersal and fitness outcomes in humans by Nitsch, Aïda, Faurie, Charlotte, Lummaa, Virpi

“…Determining how sibling interactions alter the fitness outcomes of dispersal is pivotal for the understanding of family living, but such studies are currently…”
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Offspring fertility and grandchild survival enhanced by maternal grandmothers in a pre-industrial human society by Chapman, Simon N., Lahdenperä, Mirkka, Pettay, Jenni E., Lynch, Robert F., Lummaa, Virpi

“…Help is directed towards kin in many cooperative species, but its nature and intensity can vary by context. Humans are one of few species in which grandmothers…”
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Child volunteers in a women's paramilitary organization in World War II have accelerated reproductive schedules by Lynch, Robert, Lummaa, Virpi, Briga, Michael, Chapman, Simon N., Loehr, John

“…Understanding how conditions experienced during development affect reproductive timing is of considerable cross-disciplinary interest. Life-history theory…”
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Differences in age-specific mortality between wild-caught and captive-born Asian elephants by Lahdenperä, Mirkka, Mar, Khyne U., Courtiol, Alexandre, Lummaa, Virpi

“…Wild-capture of numerous species is common for diverse purposes, including medical experiments, conservation, veterinary interventions and research, but little…”
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Influence of early-life nutrition on mortality and reproductive success during a subsequent famine in a preindustrial population by Hayward, Adam D., Rickard, Ian J., Lumrnaa, Virpi

“…Individuals with insufficient nutrition during development often experience poorer later-life health and evolutionary fitness. The Predictive Adaptive Response…”
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Increased mortality exposure within the family rather than individual mortality experiences triggers faster life-history strategies in historic human populations by Störmer, Charlotte, Lummaa, Virpi

“…Life History Theory predicts that extrinsic mortality risk is one of the most important factors shaping (human) life histories. Evidence from contemporary…”
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Personality and reproductive success in a high-fertility human population by Alvergne, Alexandra, Jokela, Markus, Lummaa, Virpi, Nisbett, Richard E.

“…The existence of interindividual differences in personality traits poses a challenge to evolutionary thinking. Although research on the ultimate consequences…”
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Maternal effects in cooperative breeders: from hymenopterans to humans by Russell, Andrew F, Lummaa, Virpi

“…The environment that an offspring experiences during its development can have lifelong consequences for its morphology, anatomy, physiology and behaviour that…”
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Long-term trends in wild-capture and population dynamics point to an uncertain future for captive elephants by Jackson, John, Childs, Dylan Z, Mar, Khyne U, Htut, Win, Lummaa, Virpi

“…Maintaining sustainable populations in captivity without supplementation through wild-capture is a major challenge in conservation that zoos and aquaria are…”
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Handler familiarity helps to improve working performance during novel situations in semi-captive Asian elephants by Liehrmann, Océane, Crawley, Jennie A. H., Seltmann, Martin W., Feillet, Sherine, Nyein, U. Kyaw, Aung, Htoo Htoo, Htut, Win, Lahdenperä, Mirkka, Lansade, Léa, Lummaa, Virpi

“…Working animals spend hours each day in close contact with humans and require training to understand commands and fulfil specific tasks. However, factors…”
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Asian elephants exhibit post-reproductive lifespans by Chapman, Simon N, Jackson, John, Htut, Win, Lummaa, Virpi, Lahdenperä, Mirkka

“…The existence of extended post-reproductive lifespan is an evolutionary puzzle, and its taxonomic prevalence is debated. One way of measuring post-reproductive…”
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Natural and sexual selection in a monogamous historical human population by Courtiol, Alexandre, Pettay, Jenni E, Jokela, Markus, Rotkirch, Anna, Lummaa, Virpi

“…Whether and how human populations exposed to the agricultural revolution are still affected by Darwinian selection remains controversial among social…”
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Grandmother effects over the Finnish demographic transition by Chapman, Simon N, Lummaa, Virpi

“…Demographic transitions are defining events for human societies, marking shifts from natural mortality and fertility rates to the low rates seen in…”
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Effects of the demographic transition on the genetic variances and covariances of human life-history traits by Bolund, Elisabeth, Hayward, Adam, Pettay, Jenni E., Lummaa, Virpi

“…The recent demographic transitions to lower mortality and fertility rates in most human societies have led to changes and even quick reversals in phenotypic…”
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Grandmotherhood across the demographic transition by Chapman, Simon N, Pettay, Jenni E, Lahdenperä, Mirkka, Lummaa, Virpi

“…Grandmothers provide key care to their grandchildren in both contemporary and historic human populations. The length of the grandmother-grandchild relationship…”
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Reply to: Maternal capacity, twinning and fertility: the last birth matters by Courtiol, Alexandre, Vullioud, Colin, Rousset, François, Postma, Erik, Helle, Samuli, Lummaa, Virpi, Kylli, Ritva, Pettay, Jenni E., Røskaft, Eivin, Skjærvø, Gine R., Störmer, Charlotte, Voland, Eckart, Waldvogel, Dominique, Rickard, Ian J.

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Fertility resilience varies by socioeconomic status and sex: Historical trends in childlessness across 150 years by Salonen, Milla, Lahdenperä, Mirkka, Rotkirch, Anna, Lummaa, Virpi

“…Fertility dynamics are key drivers of demographic change in a population. Fertility resilience is likely to vary by socioeconomic class, yet little…”
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