Scholars@Duke
Amanda McGrosky
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Selected Publications

Mobility ideation due to water problems during historic 2022 drought associated with livestock wealth, water and food insecurity, and fingernail cortisol concentration in northern Kenya.

Journal Article Social science & medicine (1982) · August 2024 Climate change is triggering environmental mobility through chronic water problems and punctuated events. Thinking about moving locations, or "mobility ideation", is the precursor to migration intentionality and actual migration. Drawing on the embodiment ... Full text Cite

Total daily energy expenditure and elevated water turnover in a small-scale semi-nomadic pastoralist society from Northern Kenya.

Conference Annals of human biology · February 2024 BackgroundPastoralists live in challenging environments, which may be accompanied by unique activity, energy, and water requirements.AimFew studies have examined whether the demands of pastoralism contribute to differences in total energy ... Full text Cite

Total Energy Expenditure and Nutritional Intake in Continuous Multiday Ultramarathon Events.

Journal Article International journal of sport nutrition and exercise metabolism · November 2023 Continuous multiday ultramarathon competitions are increasingly popular and impose extreme energetic and nutritional demands on competitors. However, few data have been published on energy expenditure during these events. Here, we report doubly labeled wat ... Full text Cite

The fire of evolution: energy expenditure and ecology in primates and other endotherms.

Journal Article The Journal of experimental biology · March 2023 Total energy expenditure (TEE) represents the total energy allocated to growth, reproduction and body maintenance, as well as the energy expended on physical activity. Early experimental work in animal energetics focused on the costs of specific tasks (bas ... Full text Cite

Balancing growth, reproduction, maintenance, and activity in evolved energy economies.

Journal Article Current biology : CB · June 2022 Economic models predominate in life history research, which investigates the allocation of an organism's resources to growth, reproduction, and maintenance. These approaches typically employ a heuristic Y model of resource allocation, which predicts trade- ... Full text Cite

Mammalian intestinal allometry, phylogeny, trophic level and climate.

Journal Article Proceedings. Biological sciences · February 2021 An often-stated ecomorphological assumption that has the status of 'textbook knowledge' is that the dimensions of the digestive tract correlate with diet, where herbivores-consuming diets of lower digestibility-have longer intestinal tracts than faunivores ... Full text Cite

A comprehensive survey of Retzius periodicities in fossil hominins and great apes.

Journal Article Journal of human evolution · December 2020 Recent studies have provided great insight into hominin life history evolution by utilizing incremental lines found in dental tissues to reconstruct and compare the growth records of extant and extinct humans versus other ape taxa. Among the hominins, stud ... Full text Cite

Sub-regional Variability in East Turkana Mammalian Communities

Conference AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY · 2020 Cite

Relative Faunal Abundance at the KNM-ER 5431 Site in Area 203 of the Koobi Fora Formation

Conference AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY · 2020 Cite

Fracture mechanics, enamel thickness and the evolution of molar form in hominins.

Journal Article Biology letters · January 2020 As the tissue most directly responsible for breaking down food in the oral cavity, the form and function of enamel is obviously of evolutionary significance in humans, non-human primates and other vertebrates. Accordingly, a standard metric, relative ename ... Full text Cite

Gross intestinal morphometry and allometry in ruminants.

Journal Article Journal of morphology · September 2019 While some descriptions of ruminants' dietary adaptations suggest that the length of the intestinal tract reflects the proportion of grass or browse in the diet, this assumption has been questioned. We collated data on body mass (BM), as well as small inte ... Full text Cite

Gross intestinal morphometry and allometry in primates.

Journal Article American journal of primatology · August 2019 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 have larger gastrointestinal tracts (GIT), statistical evidence for this simple claim is largely lac ... Full text Cite

Life history underpinnings of East Turkana faunal turnover during the early Pleistocene

Conference AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY · 2019 Cite

Biology by the Bay.

Journal Article Evolutionary anthropology · March 2018 Full text Cite

Mobility ideation due to water problems during historic 2022 drought associated with livestock wealth, water and food insecurity, and fingernail cortisol concentration in northern Kenya.

Journal Article Social science & medicine (1982) · August 2024 Climate change is triggering environmental mobility through chronic water problems and punctuated events. Thinking about moving locations, or "mobility ideation", is the precursor to migration intentionality and actual migration. Drawing on the embodiment ... Full text Cite

Total daily energy expenditure and elevated water turnover in a small-scale semi-nomadic pastoralist society from Northern Kenya.

Conference Annals of human biology · February 2024 BackgroundPastoralists live in challenging environments, which may be accompanied by unique activity, energy, and water requirements.AimFew studies have examined whether the demands of pastoralism contribute to differences in total energy ... Full text Cite

Total Energy Expenditure and Nutritional Intake in Continuous Multiday Ultramarathon Events.

Journal Article International journal of sport nutrition and exercise metabolism · November 2023 Continuous multiday ultramarathon competitions are increasingly popular and impose extreme energetic and nutritional demands on competitors. However, few data have been published on energy expenditure during these events. Here, we report doubly labeled wat ... Full text Cite

The fire of evolution: energy expenditure and ecology in primates and other endotherms.

Journal Article The Journal of experimental biology · March 2023 Total energy expenditure (TEE) represents the total energy allocated to growth, reproduction and body maintenance, as well as the energy expended on physical activity. Early experimental work in animal energetics focused on the costs of specific tasks (bas ... Full text Cite

Balancing growth, reproduction, maintenance, and activity in evolved energy economies.

Journal Article Current biology : CB · June 2022 Economic models predominate in life history research, which investigates the allocation of an organism's resources to growth, reproduction, and maintenance. These approaches typically employ a heuristic Y model of resource allocation, which predicts trade- ... Full text Cite

Mammalian intestinal allometry, phylogeny, trophic level and climate.

Journal Article Proceedings. Biological sciences · February 2021 An often-stated ecomorphological assumption that has the status of 'textbook knowledge' is that the dimensions of the digestive tract correlate with diet, where herbivores-consuming diets of lower digestibility-have longer intestinal tracts than faunivores ... Full text Cite

A comprehensive survey of Retzius periodicities in fossil hominins and great apes.

Journal Article Journal of human evolution · December 2020 Recent studies have provided great insight into hominin life history evolution by utilizing incremental lines found in dental tissues to reconstruct and compare the growth records of extant and extinct humans versus other ape taxa. Among the hominins, stud ... Full text Cite

Sub-regional Variability in East Turkana Mammalian Communities

Conference AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY · 2020 Cite

Relative Faunal Abundance at the KNM-ER 5431 Site in Area 203 of the Koobi Fora Formation

Conference AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY · 2020 Cite

Fracture mechanics, enamel thickness and the evolution of molar form in hominins.

Journal Article Biology letters · January 2020 As the tissue most directly responsible for breaking down food in the oral cavity, the form and function of enamel is obviously of evolutionary significance in humans, non-human primates and other vertebrates. Accordingly, a standard metric, relative ename ... Full text Cite

Gross intestinal morphometry and allometry in ruminants.

Journal Article Journal of morphology · September 2019 While some descriptions of ruminants' dietary adaptations suggest that the length of the intestinal tract reflects the proportion of grass or browse in the diet, this assumption has been questioned. We collated data on body mass (BM), as well as small inte ... Full text Cite

Gross intestinal morphometry and allometry in primates.

Journal Article American journal of primatology · August 2019 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 have larger gastrointestinal tracts (GIT), statistical evidence for this simple claim is largely lac ... Full text Cite

Life history underpinnings of East Turkana faunal turnover during the early Pleistocene

Conference AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY · 2019 Cite

Biology by the Bay.

Journal Article Evolutionary anthropology · March 2018 Full text Cite

Gross intestinal morphometry and allometry in Carnivora

Journal Article European Journal of Wildlife Research · August 2016 Full text Cite