Search Results - "Heldstab, Sandra"

Latitude, life history and sexual size dimorphism correlate with reproductive seasonality in rodents by Heldstab, Sandra A.

“…Rodents show an immense variation in reproductive seasonality, spanning the whole spectrum from strictly seasonal to continuous reproduction throughout the…”
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The economics of brain size evolution in vertebrates by Heldstab, Sandra A., Isler, Karin, Graber, Sereina M., Schuppli, Caroline, van Schaik, Carel P.

“…Across the animal kingdom, we see remarkable variation in brain size. This variation has even increased over evolutionary time. Traditionally, studies aiming…”
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Why big brains? A comparison of models for both primate and carnivore brain size evolution by Chambers, Helen Rebecca, Heldstab, Sandra Andrea, O'Hara, Sean J

“…Despite decades of research, much uncertainty remains regarding the selection pressures responsible for brain size variation. Whilst the influential social…”
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Reproductive seasonality in primates: patterns, concepts and unsolved questions by Heldstab, Sandra A., van Schaik, Carel P., Müller, Dennis W. H., Rensch, Eberhard, Lackey, Laurie Bingaman, Zerbe, Philipp, Hatt, Jean‐Michel, Clauss, Marcus, Matsuda, Ikki

“…ABSTRACT Primates, like other mammals, exhibit an annual reproductive pattern that ranges from strictly seasonal breeding to giving birth in all months of the…”
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Hibernation constrains brain size evolution in mammals by Heldstab, Sandra A., Isler, Karin, Schaik, Carel P.

“…The expensive brain hypothesis predicts that the lowest stable level of steady energy input acts as a strong constraint on a species’ brain size, and thus,…”
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Extended parental provisioning and variation in vertebrate brain sizes by van Schaik, Carel P, Song, Zitan, Schuppli, Caroline, Drobniak, Szymon M, Heldstab, Sandra A, Griesser, Michael

“…Large brains provide adaptive cognitive benefits but require unusually high, near-constant energy inputs and become fully functional well after their growth is…”
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Being fat and smart: A comparative analysis of the fat-brain trade-off in mammals by Heldstab, Sandra A., van Schaik, Carel P., Isler, Karin

“…Humans stand out among non-aquatic mammals by having both an extremely large brain and a relatively large amount of body fat. To understand the evolution of…”
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Manipulation complexity in primates coevolved with brain size and terrestriality by Heldstab, Sandra A., Kosonen, Zaida K., Koski, Sonja E., Burkart, Judith M., van Schaik, Carel P., Isler, Karin

“…Humans occupy by far the most complex foraging niche of all mammals, built around sophisticated technology, and at the same time exhibit unusually large…”
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Allomaternal care, brains and fertility in mammals: who cares matters by Heldstab, Sandra A., Isler, Karin, Burkart, Judith M., van Schaik, Carel P.

“…The expensive brain hypothesis predicts that the lowest stable level of energy input sets the upper limit to a species’ brain size. This prediction receives…”
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Getting fat or getting help? How female mammals cope with energetic constraints on reproduction by Heldstab, Sandra A, van Schaik, Carel P, Isler, Karin

“…Fat deposits enable a female mammal to bear the energy costs of offspring production and thus greatly influence her reproductive success. However, increasing…”
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Gross intestinal morphometry and allometry in primates by McGrosky, Amanda, Meloro, Carlo, Navarrete, Ana, Heldstab, Sandra A., Kitchener, Andrew C., Isler, Karin, Clauss, Marcus

“…Although it is generally assumed that among mammals and within mammal groups, those species that rely on diets consisting of greater amounts of plant fiber…”
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When ontogeny recapitulates phylogeny: Fixed neurodevelopmental sequence of manipulative skills among primates by Heldstab, Sandra A, Isler, Karin, Schuppli, Caroline, van Schaik, Carel P

“…Neural development is highly conserved across distantly related species of different brain sizes. Here, we show that the development of manipulative complexity…”
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Geographical Origin, Delayed Implantation, and Induced Ovulation Explain Reproductive Seasonality in the Carnivora by Heldstab, Sandra A., Müller, Dennis W. H., Graber, Sereina M., Bingaman Lackey, Laurie, Rensch, Eberhard, Hatt, Jean-Michel, Zerbe, Philipp, Clauss, Marcus

“…Patterns of reproductive seasonality in the Carnivora are difficult to study comparatively, due to limited numbers of species for which information is…”
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Correction to: getting fat or getting help? how female mammals cope with energetic constraints on reproduction by Heldstab, Sandra A, van Schaik, Carel P, Isler, Karin

“…[This corrects the article DOI: 10.1186/s12983-017-0214-0.]…”
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Sensitivity, specificity, and diagnostic accuracy of WHO 2013 criteria for diagnosis of gestational diabetes mellitus in low risk early pregnancies: international, prospective, multicentre cohort study by Huhn, Evelyn A, Göbl, Christian S, Fischer, Thorsten, Todesco Bernasconi, Monya, Kreft, Martina, Kunze, Mirjam, Vogt, Deborah R, Dölzlmüller, Eva, Jaksch-Bogensperger, Heidi, Heldstab, Sandra, Eppel, Wolfgang, Husslein, Peter, Ochsenbein Kölble, Nicole, Richter, Anne, Bäz, Elke, Winzeler, Bettina, Hoesli, Irene

“…ObjectiveTo evaluate the predictability of gestational diabetes mellitus wth a 75 g oral glucose tolerance test (OGTT) in early pregnancy, based on the 2013…”
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Extended parental provisioning and variation in vertebrate brain sizes by Carel P. van Schaik, Zitan Song, Caroline Schuppli, Szymon M. Drobniak, Sandra A. Heldstab, Michael Griesser

“…Large brains provide adaptive cognitive benefits but require unusually high, near-constant energy inputs and become fully functional well after their growth is…”
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