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510 results on '"Dominy, Nathaniel J"'

102. Biodiversity of protists and nematodes in the wild nonhuman primate gut

Author

Mann, Allison E., primary, Mazel, Florent, additional, Lemay, Matthew A., additional, Morien, Evan, additional, Billy, Vincent, additional, Kowalewski, Martin, additional, Di Fiore, Anthony, additional, Link, Andrés, additional, Goldberg, Tony L., additional, Tecot, Stacey, additional, Baden, Andrea L., additional, Gomez, Andres, additional, Sauther, Michelle L., additional, Cuozzo, Frank P., additional, Rice, Gillian A. O., additional, Dominy, Nathaniel J., additional, Stumpf, Rebecca, additional, Lewis, Rebecca J., additional, Swedell, Larissa, additional, Amato, Katherine, additional, and Wegener Parfrey, Laura, additional

Published
2019
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103. Plasticity in the Human Gut Microbiome Defies Evolutionary Constraints

Author

Gomez, Andres, primary, Sharma, Ashok Kumar, additional, Mallott, Elizabeth K., additional, Petrzelkova, Klara J., additional, Jost Robinson, Carolyn A., additional, Yeoman, Carl J., additional, Carbonero, Franck, additional, Pafco, Barbora, additional, Rothman, Jessica M., additional, Ulanov, Alexander, additional, Vlckova, Klara, additional, Amato, Katherine R., additional, Schnorr, Stephanie L., additional, Dominy, Nathaniel J., additional, Modry, David, additional, Todd, Angelique, additional, Torralba, Manolito, additional, Nelson, Karen E., additional, Burns, Michael B., additional, Blekhman, Ran, additional, Remis, Melissa, additional, Stumpf, Rebecca M., additional, Wilson, Brenda A., additional, Gaskins, H. Rex, additional, Garber, Paul A., additional, White, Bryan A., additional, and Leigh, Steven R., additional

Published
2019
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113. Primate dietary ecology in the context of food mechanical properties

Author

Coiner-Collier, Susan, Scott, Robert S., Chalk-Wilayto, Janine, Cheyne, Susan M., Constantino, Paul, Loyola, Laura C., Dominy, Nathaniel J., Elgart, Alison A., Glowacka, Halszka, Ossi-Lupo, Kerry, Raguet-Schofield, Melissa, Taylor, Andrea B., Talebi, Mauricio G., Sala, Enrico A., Sieradzy, Pawel, Vinyard, Christopher J., Wright, Barth W., Yamashita, Nayuta, Lucas, Peter W., and Vogel, Erin R.

Subjects
Primate diet, Feeding behavior, Young���s modulus, Toughness, Food mechanical properties
Abstract

Substantial variation exists in the mechanical properties of foods consumed by primate species. This variation is known to influence food selection and ingestion among non-human primates, yet no large-scale comparative study has examined the relationships between food mechanical properties and feeding strategies. Here we present comparative data on the Young���s modulus and fracture toughness of natural foods in the diets of 31 primate species. We use these data to examine the relationships between food mechanical properties and dietary quality, body mass, and feeding time. We also examine the relationship between food mechanical properties and categorical concepts of diet that are often used to infer food mechanical properties. Traditional dietary categories, such as folivory and frugivory, did not faithfully track food mechanical properties. Additionally, our estimate of dietary quality was not significantly correlated with either toughness or Young���s modulus. We found a complex relationship among food mechanical properties, body mass, and feeding time, with a potential interaction between median toughness and body mass. The relationship between mean toughness and feeding time is straightforward: feeding time increases as toughness increases. However, when considering median toughness, the relationship with feeding time may depend upon body mass such that smaller primates increase their feeding time in response to an increase in median dietary toughness, whereas larger primates may even feed for shorter periods of time as toughness increases. Our results emphasize the need for additional studies quantifying the mechanical and chemical properties of primate diets so that they may be meaningfully compared to research on feeding behavior and jaw morphology.

Published
2016
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114. Sterile pyuria in a population of wild white-handed gibbons (Hylobates lar)

Author

Beaman, Barbara A., Hesemeyer, Wyatt J., Dominy, Nathaniel J., Savini, Tommaso, and Reichard, Ulrich H.

Subjects
Gibbons -- Demographic aspects, Gibbons -- Health aspects, Leukocytes -- Research, Urine -- Analysis, Urine -- Usage, Anthropology/archeology/folklore, Biological sciences, Health, Psychology and mental health
Published
2009

116. Significance of color, calories, and climate to the visual ecology of Catarrhines

Author

Dominy, Nathaniel J.

Subjects
Primates -- Research, Primates -- Food and nutrition, Anthropology/archeology/folklore, Biological sciences, Health, Psychology and mental health
Abstract

The correlation among visual ecology and the physiochemical properties of fruits and leaves, consumed by four species of catarrhine primate, is described.

Published
2004

117. Fantastic Machine.

Author

Dominy, Nathaniel J.

Subjects
FANTASTIC Machine (Film), DANIELSON, Axel, VAN Aertryck, Maximilien
Published
2023

119. Primate dietary ecology in the context of food mechanical properties

Author

Coiner-Collier, Susan, primary, Scott, Robert S., additional, Chalk-Wilayto, Janine, additional, Cheyne, Susan M., additional, Constantino, Paul, additional, Dominy, Nathaniel J., additional, Elgart, Alison A., additional, Glowacka, Halszka, additional, Loyola, Laura C., additional, Ossi-Lupo, Kerry, additional, Raguet-Schofield, Melissa, additional, Talebi, Mauricio G., additional, Sala, Enrico A., additional, Sieradzy, Pawel, additional, Taylor, Andrea B., additional, Vinyard, Christopher J., additional, Wright, Barth W., additional, Yamashita, Nayuta, additional, Lucas, Peter W., additional, and Vogel, Erin R., additional

Published
2016
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120. Genomic analysis reveals hidden biodiversity within colugos, the sister group to primates

Author

Mason, Victor C., primary, Li, Gang, additional, Minx, Patrick, additional, Schmitz, Jürgen, additional, Churakov, Gennady, additional, Doronina, Liliya, additional, Melin, Amanda D., additional, Dominy, Nathaniel J., additional, Lim, Norman T-L., additional, Springer, Mark S., additional, Wilson, Richard K., additional, Warren, Wesley C., additional, Helgen, Kristofer M., additional, and Murphy, William J., additional

Published
2016
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122. Euarchontan Opsin Variation Brings New Focus to Primate Origins

Author

Melin, Amanda D., primary, Wells, Konstans, additional, Moritz, Gillian L., additional, Kistler, Logan, additional, Orkin, Joseph D., additional, Timm, Robert M., additional, Bernard, Henry, additional, Lakim, Maklarin B., additional, Perry, George H., additional, Kawamura, Shoji, additional, and Dominy, Nathaniel J., additional

Published
2016
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123. The Sensory Systems of Alouatta : Evolutionwith an Eye to Ecology

Author

Hernández Salazar, Laura T., Dominy, Nathaniel J., Laska, Matthias, Hernández Salazar, Laura T., Dominy, Nathaniel J., and Laska, Matthias

Abstract

Our knowledge about the perceptual world of howler monkeys is unevenlydistributed between the fi ve senses. Whereas there is abundant knowledge about thesense of vision in the genus Alouatta , only limited data on the senses of hearing,smell, taste, and touch are available. The discovery that howler monkeys are theonly genus among the New World primates to possess routine trichromacy hasimportant implications for the evolution of color vision and therefore has been studiedintensively. Detailed information about the genetic mechanisms and physiologicalprocesses underlying color vision in howler monkeys are available. Although thesound production, vocal repertoire, and acoustic communication in the genusAlouatta have been well documented, basic physiological measures of hearing performancesuch as audiograms are missing. Similarly, despite an increasing numberof observational studies on olfactory communication in howler monkeys, there is acomplete lack of physiological studies on the effi ciency of their sense of smell.Information about the senses of taste and touch is even scarcer and mainly restrictedto a description of their anatomical basis. A goal of this chapter is to summarize ourcurrent knowledge of the anatomy, physiology, genetics, and behavioral relevanceof the different senses in howler monkeys in comparison to other platyrrhines.

Published
2015
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126. Evolutionary trends in host physiology outweigh dietary niche in structuring primate gut microbiomes

Author

Amato, Katherine R, Sanders, Jon G, Song, Se Jin, Nute, Michael, Metcalf, Jessica L, Thompson, Luke R, Morton, James T, Amir, Amnon, McKenzie, Valerie J, Humphrey, Gregory, Gogul, Grant, Gaffney, James, Baden, Andrea L, Britton, Gillian A O, Cuozzo, Frank P, Di Fiore, Anthony, Dominy, Nathaniel J, Goldberg, Tony L, Gomez, Andres, Kowalewski, Martin M, Lewis, Rebecca J, Link, Andres, Sauther, Michelle L, Tecot, Stacey, White, Bryan A, Nelson, Karen E, Stumpf, Rebecca M, Knight, Rob, and Leigh, Steven R

Abstract

Over the past decade several studies have reported that the gut microbiomes of mammals with similar dietary niches exhibit similar compositional and functional traits. However, these studies rely heavily on samples from captive individuals and often confound host phylogeny, gut morphology, and diet. To more explicitly test the influence of host dietary niche on the mammalian gut microbiome we use 16S rRNA gene amplicon sequencing and shotgun metagenomics to compare the gut microbiota of 18 species of wild non-human primates classified as either folivores or closely related non-folivores, evenly distributed throughout the primate order and representing a range of gut morphological specializations. While folivory results in some convergent microbial traits, collectively we show that the influence of host phylogeny on both gut microbial composition and function is much stronger than that of host dietary niche. This pattern does not result from differences in host geographic location or actual dietary intake at the time of sampling, but instead appears to result from differences in host physiology. These findings indicate that mammalian gut microbiome plasticity in response to dietary shifts over both the lifespan of an individual host and the evolutionary history of a given host species is constrained by host physiological evolution. Therefore, the gut microbiome cannot be considered separately from host physiology when describing host nutritional strategies and the emergence of host dietary niches.

Published
2019
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130. Functional preservation and variation in the cone opsin genes of nocturnal tarsiers.

Author

Moritz, Gillian L., Ong, Perry S., Perry, George H., and Dominy, Nathaniel J.

Subjects
COLOR vision, NOCTURNAL animals, TARSIERS, OPSINS, PREDATION, BEHAVIOR, PRIMATES
Abstract

The short-wavelength sensitive (S-) opsin gene OPN1SW is pseudogenized in some nocturnal primates and retained in others, enabling dichromatic colour vision. Debate on the functional significance of this variation has focused on dark conditions, yet many nocturnal species initiate activity under dim (mesopic) light levels that can support colour vision. Tarsiers are nocturnal, twilight-active primates and exemplary visual predators; they also express different colour vision phenotypes, raising the possibility of discrete adaptations to mesopic conditions. To explore this premise, we conducted a field study in two stages. First, to estimate the level of functional constraint on colour vision, we sequenced OPN1SW in 12 wild-caught Philippine tarsiers (Tarsius syrichta). Second, to explore whether the dichromatic visual systems of Philippine and Bornean (Tarsius bancanus) tarsiers—which express alternate versions of the medium/long-wavelength sensitive (M/L-) opsin gene OPN1MW/OPN1LW—confer differential advantages specific to their respective habitats, we used twilight and moonlight conditions to model the visual contrasts of invertebrate prey. We detected a signature of purifying selection for OPN1SW, indicating that colour vision confers an adaptive advantage to tarsiers. However, this advantage extends to a relatively small proportion of prey–background contrasts, and mostly brown arthropod prey amid leaf litter. We also found that the colour vision of T. bancanus is advantageous for discriminating prey under twilight that is enriched in shorter (bluer) wavelengths, a plausible idiosyncrasy of understorey habitats in Borneo. [ABSTRACT FROM AUTHOR]

Published
2017
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131. Hunter-gatherer residential mobility and the marginal value of rainforest patches.

Author

Venkataraman, Vivek V., Kraft, Thomas S., Dominy, Nathaniel J., and Endicott, Kirk M.

Subjects
RESIDENTIAL mobility, RAIN forests, HYPOTHESIS, MATHEMATICS theorems, ETHNOLOGY
Abstract

The residential mobility patterns of modern hunter-gatherers broadly reflect local resource availability, but the proximate ecological and social forces that determine the timing of camp movements are poorly known. We tested the hypothesis that the timing of such moves maximizes foraging efficiency as huntergatherers move across the landscape. The marginal value theorem predicts when a group should depart a camp and its associated foraging area and move to another based on declining marginal return rates. This influential model has yet to be directly applied in a population of hunter-gatherers, primarily because the shape of gain curves (cumulative resource acquisition through time) and travel times between patches have been difficult to estimate in ethnographic settings. We tested the predictions of the marginal value theorem in the context of hunter-gatherer residential mobility using historical foraging data from nomadic, socially egalitarian Batek hunter-gatherers (n = 93 d across 11 residential camps) living in the tropical rainforests of Peninsular Malaysia. We characterized the gain functions for all resources acquired by the Batek at daily timescales and examined how patterns of individual foraging related to the emergent property of residential movements. Patterns of camp residence times conformed well with the predictions of the marginal value theorem, indicating that communal perceptions of resource depletion are closely linked to collective movement decisions. Despite (and perhaps because of) a protracted process of deliberation and argument about when to depart camps, Batek residential mobility seems to maximize group-level foraging efficiency. [ABSTRACT FROM AUTHOR]

Published
2017
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132. Frankenstein and the Horrors of Competitive Exclusion.

Author

DOMINY, NATHANIEL J. and YEAKEL, JUSTIN D.

Subjects
*CREATION, *TELEOLOGY, *FINALISM (Philosophy), *LOTKA-Volterra equations
Abstract

The author discusses the empirical justification on the denial by Victor Frankenstein to provide his creation a partner. It discusses a formal treatment on the reasoning of Frankenstein through the use of Lotka-Volterra competition framework. It discusses the manipulation of the framework in consideration with several parameters.

Published
2017
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133. The Pod Generation.

Author

Dominy, Nathaniel J.

Subjects
POD Generation, The (Film), BARTHES, Sophie
Published
2023

136. Conservation Genetics of the Philippine Tarsier: Cryptic Genetic Variation Restructures Conservation Priorities for an Island Archipelago Primate

Author

Brown, Rafe M., primary, Weghorst, Jennifer A., additional, Olson, Karen V., additional, Duya, Mariano R. M., additional, Barley, Anthony J., additional, Duya, Melizar V., additional, Shekelle, Myron, additional, Neri-Arboleda, Irene, additional, Esselstyn, Jacob A., additional, Dominy, Nathaniel J., additional, Ong, Perry S., additional, Moritz, Gillian L., additional, Luczon, Adrian, additional, Diesmos, Mae Lowe L., additional, Diesmos, Arvin C., additional, and Siler, Cameron D., additional

Published
2014
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140. The impact of agricultural emergence on the genetic history of African rainforest hunter-gatherers and agriculturalists

Author

Patin, Etienne, primary, Siddle, Katherine J., additional, Laval, Guillaume, additional, Quach, Hélène, additional, Harmant, Christine, additional, Becker, Noémie, additional, Froment, Alain, additional, Régnault, Béatrice, additional, Lemée, Laure, additional, Gravel, Simon, additional, Hombert, Jean-Marie, additional, Van der Veen, Lolke, additional, Dominy, Nathaniel J., additional, Perry, George H., additional, Barreiro, Luis B., additional, Verdu, Paul, additional, Heyer, Evelyne, additional, and Quintana-Murci, Lluís, additional

Published
2014
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141. Global patterns of leaf mechanical properties.

Author

Onoda, Yusuke, Onoda, Yusuke, Westoby, Mark, Adler, Peter B, Choong, Amy MF, Clissold, Fiona J, Cornelissen, Johannes HC, Díaz, Sandra, Dominy, Nathaniel J, Elgart, Alison, Enrico, Lucas, Fine, Paul VA, Howard, Jerome J, Jalili, Adel, Kitajima, Kaoru, Kurokawa, Hiroko, McArthur, Clare, Lucas, Peter W, Markesteijn, Lars, Pérez-Harguindeguy, Natalia, Poorter, Lourens, Richards, Lora, Santiago, Louis S, Sosinski, Enio E, Van Bael, Sunshine A, Warton, David I, Wright, Ian J, Wright, S Joseph, Yamashita, Nayuta, Onoda, Yusuke, Onoda, Yusuke, Westoby, Mark, Adler, Peter B, Choong, Amy MF, Clissold, Fiona J, Cornelissen, Johannes HC, Díaz, Sandra, Dominy, Nathaniel J, Elgart, Alison, Enrico, Lucas, Fine, Paul VA, Howard, Jerome J, Jalili, Adel, Kitajima, Kaoru, Kurokawa, Hiroko, McArthur, Clare, Lucas, Peter W, Markesteijn, Lars, Pérez-Harguindeguy, Natalia, Poorter, Lourens, Richards, Lora, Santiago, Louis S, Sosinski, Enio E, Van Bael, Sunshine A, Warton, David I, Wright, Ian J, Wright, S Joseph, and Yamashita, Nayuta

Abstract

Leaf mechanical properties strongly influence leaf lifespan, plant-herbivore interactions, litter decomposition and nutrient cycling, but global patterns in their interspecific variation and underlying mechanisms remain poorly understood. We synthesize data across the three major measurement methods, permitting the first global analyses of leaf mechanics and associated traits, for 2819 species from 90 sites worldwide. Key measures of leaf mechanical resistance varied c. 500-800-fold among species. Contrary to a long-standing hypothesis, tropical leaves were not mechanically more resistant than temperate leaves. Leaf mechanical resistance was modestly related to rainfall and local light environment. By partitioning leaf mechanical resistance into three different components we discovered that toughness per density contributed a surprisingly large fraction to variation in mechanical resistance, larger than the fractions contributed by lamina thickness and tissue density. Higher toughness per density was associated with long leaf lifespan especially in forest understory. Seldom appreciated in the past, toughness per density is a key factor in leaf mechanical resistance, which itself influences plant-animal interactions and ecosystem functions across the globe.

Published
2011

148. Primate communication in the pure ultrasound

Author

Ramsier, Marissa A., primary, Cunningham, Andrew J., additional, Moritz, Gillian L., additional, Finneran, James J., additional, Williams, Cathy V., additional, Ong, Perry S., additional, Gursky-Doyen, Sharon L., additional, and Dominy, Nathaniel J., additional

Published
2012
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149. Why Aye-Ayes See Blue

Author

MELIN, AMANDA D., primary, MORITZ, GILLIAN L., additional, FOSBURY, ROBERT A. E., additional, KAWAMURA, SHOJI, additional, and DOMINY, NATHANIEL J., additional

Published
2012
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