30 Works

Hemotological and morphometric measurements from geladas

Kenneth L. Chiou, Mareike C. Janiak, India A. Schneider-Crease, Sharmi Sen, Ferehiwot Ayele, Idrissa S. Chuma, Sascha Knauf, Alemayehu Lemma, Anthony V. Signore, Anthony M. D’Ippolito, Belayneh Abebe, Abebaw Azanaw Haile, Fanuel Kebede, Peter J. Fashing, Nga Nguyen, Colleen McCann, Marlys L. Houck, Jeffrey D. Wall, Andrew S. Burrell, Christina M. Bergey, Jeffrey Rogers, Jane E. Phillips-Conroy, Clifford J. Jolly, Amanda D. Melin, Jay F. Storz … & Noah Snyder-Mackler
Primates have adapted to numerous environments and lifestyles but very few species are native to high elevations. Here, we investigated high-altitude adaptations in the gelada (Theropithecus gelada), a monkey endemic to the Ethiopian Plateau. We examined genome-wide variation in conjunction with measurements of haematological and morphological traits. Our new gelada reference genome is highly intact and assembled at chromosome-length levels. Unexpectedly, we identified a chromosomal polymorphism in geladas that could potentially contribute to reproductive barriers...

Morphological adaptations linked to flight efficiency and aerial lifestyle determine natal dispersal distance in birds

Brian Weeks, Bruce OBrien, Jonathan Chu, Santiago Claramunt, Catherine Sheard & Joseph Tobias
Natal dispersal—the movement from birthplace to breeding location—is often considered the most significant dispersal event in an animal’s lifetime. Natal dispersal distances may be shaped by a variety of intrinsic and extrinsic factors, and remain poorly quantified in most groups, highlighting the need for indices that capture variation in dispersal among species. In birds, it is hypothesized that dispersal distance can be predicted by flight efficiency, which can be estimated using wing morphology. However, the...

A Permian fish reveals widespread distribution of neopterygian-like jaw suspension

Thodoris Argyriou, Sam Giles & Matt Friedmann
The actinopterygian crown group (comprising all living ray-finned fishes) originated by the end of the Carboniferous. However, most late Paleozoic taxa are stem actinopterygians, and broadly resemble stratigraphically older taxa. The early Permian †Brachydegma caelatum is notable for its three-dimensional preservation and past phylogenetic interpretations as a nested member of the neopterygian crown. Here, we use computed microtomography to redescribe †Brachydegma, uncovering an unanticipated combination of primitive (e.g., aortic canal; immobile maxilla) and derived (e.g.,...

Predator-based selection and the impact of edge sympatry on components of coral snake mimicry

Lauren Wilson, George Lonsdale, John David Curlis, Elizabeth Hunter & Christian L. Cox
Mimicry is a vivid example of how predator-driven selection can impact phenotypic diversity, which itself can be influenced by the presence (sympatry) or absence (allopatry) of a dangerous model. However, the impact of sympatry and allopatry on predation on mimicry systems at fine spatial scales (e.g., edge sympatry, allopatry) is not well understood. We used a clay model study in a montane tropical site in Honduras to test the impact of edge sympatry on 1)...

Synaptic mechanisms of top-down control in the non-lemniscal inferior colliculus

Hannah Oberle, Alexander Ford, Deepak Dileepkumar, Jordyn Czarny & Pierre Apostolides
Corticofugal projections to evolutionarily ancient, sub-cortical structures are ubiquitous across mammalian sensory systems. These “descending” pathways enable the neocortex to control ascending sensory representations in a predictive or feedback manner, but the underlying cellular mechanisms are poorly understood. Here we combine optogenetic approaches with in vivo and in vitro patch-clamp electrophysiology to study the projection from mouse auditory cortex to the inferior colliculus (IC), a major descending auditory pathway that controls IC neuron feature selectivity,...

Histological and life history data for small-bodied mammals from: Multituberculate mammals show evidence of a life history strategy similar to that of placentals, not marsupials

Lucas Weaver, Henry Fulghum, David Grossnickle, William Brightly, Zoe Kulik, Gregory Wilson Mantilla & Megan Whitney
The remarkable evolutionary success of placental mammals has been partly attributed to their reproductive strategy of prolonged gestation and birthing of relatively precocial, quickly weaned neonates. Although this strategy was conventionally considered derived relative to that of marsupials with highly altricial neonates and long lactation periods, mounting evidence has challenged this view. Until now, the fossil record has been relatively silent on this debate, but here we find that proportions of different bone tissue microstructures...

Decay by ectomycorrhizal fungi couples soil organic matter to nitrogen availability

William A. Argiroff, Donald R. Zak, Peter T. Pellitier, Rima A. Upchurch & Julia P. Belke
Interactions between soil nitrogen (N) availability, fungal community composition, and soil organic matter (SOM) regulate soil carbon (C) dynamics in many forest ecosystems, but context dependency in these relationships has precluded general predictive theory. We found that ectomycorrhizal (ECM) fungi with peroxidases decreased with increasing inorganic N availability across a natural inorganic N gradient in northern temperate forests, whereas ligninolytic fungal saprotrophs exhibited no response. Lignin-derived SOM and soil C were negatively correlated with ECM...

Scan files, 3D reconstructions, data spreadsheet and supplementary files for Heterochrony and parallel evolution of echinoderm, hemichordate and cephalochordate internal bars

Nidia Álvarez Armada, Christopher Cameron, Jennifer Bauer & Imran Rahman
Deuterostomes comprise three phyla with radically different body plans. Phylogenetic bracketing of the living deuterostome clades suggests the latest common ancestor of echinoderms, hemichordates and chordates was a bilaterally symmetrical worm with pharyngeal openings, with these characters lost in echinoderms. Early fossil echinoderms with pharyngeal openings have been described, but their interpretation is highly controversial. Here, we critically evaluate the evidence for pharyngeal structures (gill bars) in the extinct stylophoran echinoderms Lagynocystis pyramidalis and Jaekelocarpus...

Plasticity in female timing may explain earlier breeding in a North American songbird

Abigail Kimmitt, Daniel Becker, Sara Diller, Nicole Gerlach, Kimberly Rosvall & Ellen Ketterson
Many species have shifted their breeding phenology in response to climate change. Identifying the magnitude of phenological shifts and whether climate-mediated selection drives these shifts is key for determining species’ resilience to climate change. Birds are a strong model for studying phenological shifts due to numerous long-term research studies; however, generalities pertaining to drivers of phenological shifts will emerge only as we add study species that differ in life history and geography. We investigated 32...

TCCON data from Jet Propulsion Laboratory (US), 2007, Release GGG2020.R0

P. O. Wennberg, D. Wunch, Y. Yavin, G. C. Toon, J.-F. Blavier, N. T. Allen, G. Keppel-Aleks & C.M. Roehl
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This is the GGG2020 data release of observations from the TCCON station at Jet Propulsion Laboratory, Pasadena, California, USA

Data for: An aggressive non-consumptive effect mediates pest control and multi-predator interactions in a coffee agroecosystem

Jonathan Morris
Natural pest control is an alternative to pesticide use in agriculture, which may help to curb insect declines and promote crop production. Non-consumptive interactions in natural pest control, which historically have received far less attention than consumptive interactions, may have distinct impacts on pest damage suppression and may also mediate positive multi-predator interactions. Additionally, when non-consumptive effects are driven by natural enemy aggression, variation in alternative resources for enemies may impact the strength of pest...

Pollinator visitation to Na-enriched plants

Nathan Sanders & Carrie Finkelstein
Plants have evolved a variety of approaches to attract pollinators, including enriching their nectar with essential nutrients. Because sodium is an essential nutrient for pollinators, and sodium concentration in nectar can vary both within and among species, we explored whether experimentally enriching floral nectar with sodium in five plant species would influence pollinator visitation and diversity. We found that the number of visits by pollinators increased on plants with sodium-enriched nectar, regardless of plant species,...

Facemasks: Perceptions and use in an ED population during COVID-19

Vidya Eswaran, Anna Marie Chang, R Gentry Wilkerson, Kelli O'Laughlin, Brian Chinnock, Stephanie Eucker, Brigitte Baumann, Nancy Anaya, Daniel Miller, Adrianne Haggins, Jesus Torres, Erik Anderson, Stephen Lim, Martina Caldwell, Ali Raja & Robert Rodriguez
Study Objective: Facemask use is associated with reduced transmission of SARS-CoV-2. Most surveys assessing perceptions and practices of mask use miss the most vulnerable racial, ethnic, and socio-economic populations. These same populations have suffered disproportionate impacts from the pandemic. The purpose of this study was to assess beliefs, access, and practices of mask wearing across 15 urban emergency department (ED) populations. Methods: This was a secondary analysis of a cross-sectional study of ED patients from...

TCCON data from Park Falls (US), Release GGG2020.R0

P. O. Wennberg, C. M. Roehl, D. Wunch, G. C. Toon, J.-F. Blavier, R. Washenfelder, G. Keppel-Aleks & N. T. Allen
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This is the GGG2020 data release of observations from the TCCON station at Park Falls, Wisconsin, USA

Plant community impact on productivity: trait diversity or key(stone) species effects?

Philipp Brun, Cyrille Violle, David Mouillot, Nicolas Mouquet, Brian Enquist, François Munoz, Tamara Munkemuller, Annette Ostling, Niklaus Zimmermann & Wilfried Thuiller
Outside controlled experimental plots, the impact of community attributes on primary productivity has rarely been compared to that of individual species. Here, we identified plant species of high importance for productivity (key species) in >29,000 diverse grassland communities in the European Alps, and compared their effects with those of community-level measures of functional composition (weighted means, variances, skewness, and kurtosis). After accounting for the environment, the five most important key species jointly explained more deviance...

EcoPhyloMapper: an R package for integrating geographic ranges, phylogeny, and morphology

Pascal Title, Donald Swiderski & Miriam Zelditch
1. Spatial patterns of species richness, phylogenetic and morphological diversity are key to answering many questions in ecology and evolution. Across spatial scales, geographic and environmental features, as well as evolutionary history and phenotypic traits, are thought to play roles in shaping both local species communities and regional assemblages. By examining these geographic patterns, it is possible to infer how different axes of biodiversity influence one another, and how their interaction with abiotic factors has...

Little Appleton Pasteuria epidemic dataset

Meghan Duffy, Camden Gowler, Haley Essington, Bruce O'Brien, Clara Shaw, Rebecca Bilich & Patrick Clay
Virulence, the degree to which a pathogen harms its host, is an important but poorly understood aspect of host-pathogen interactions. However it is not a static trait, instead depending on ecological context and potentially evolving over short periods of time (e.g., during the course of an epidemic). At the start of an epidemic, when susceptible hosts are plentiful, pathogens may evolve increased virulence, maximizing their intrinsic growth rate. However, if host density declines during an...

Experimental repatriation of snowshoe hares along a southern range boundary reveals historical community interactions

Evan Wilson, Benjamin Zuckerberg, Zach Peery & Jonathan Pauli
Climate change is altering interspecific interactions globally, yet community-level responses are difficult to predict due to both the direct and indirect effects of changing abiotic and biotic conditions. Snowshoe hares (Lepus americanus) are particularly vulnerable to decreasing snow cover and resultant camouflage mismatch. This species shares a suite of predators with alternative prey species including porcupines (Erethizon dorsatum) and ruffed grouse (Bonasa umbellus), and all three species historically exhibited synchronized population dynamics. Recently, the community...

Fast likelihood calculations for automatic identification of macroevolutionary rate heterogeneity in continuous and discrete traits

Michael Grundler, Daniel Rabosky & Felipe Zapata
Understanding phenotypic disparity across the tree of life requires identifying where and when evolutionary rates change on phylogeny. A primary methodological challenge in macroevolution is therefore to develop methods for accurate inference of among-lineage variation in rates of phenotypic evolution. Here, we describe a method for inferring among-lineage evolutionary rate heterogeneity in both continuous and discrete traits. The method assumes that the present-day distribution of a trait is shaped by a variable-rate process arising from...

Drivers of global variation in land ownership - dataset

Patrick Kavanagh, Michael Gavin, Hannah Haynie, Geoff Kushnick, Bruno Vilela, Ty Tuff, Claire Bowern, Bobbi Low, Carol Ember, Kathryn Kirby & Carlos Botero
Land ownership shapes natural resource management and social–ecological resilience, but the factors determining ownership norms in human societies remain unclear. Here we conduct a global empirical test of long‐standing theories from ecology, economics and anthropology regarding potential drivers of land ownership and territoriality. Prior theory suggests that resource defensibility, subsistence strategies, population pressure, political complexity and cultural transmission mechanisms may all influence land ownership. We applied multi‐model inference procedures based on logistic regression to cultural...

Genetic characterization of potential venom resistance proteins in California ground squirrels (Otospermophilus beecheyi) using transcriptome analyses

Alexander Ochoa, Alyssa T. B. Hassinger, Matthew L. Holding & H. Lisle Gibbs
Understanding the molecular basis of adaptations in coevolving species requires identifying the genes that underlie reciprocally selected phenotypes, such as those involved in venom in snakes and resistance to venom in their prey. In this regard, California ground squirrels (CGS; Otospermophilus beecheyi) are eaten by northern Pacific rattlesnakes (Crotalus oreganus oreganus), but individual squirrels may still show substantial resistance to venom and survive bites. A recent study using proteomics identified venom interactive proteins (VIPs) in...

Data from: The origins of cognitive flexibility in chimpanzees

Averill Cantwell, Joshua Buckholtz, Rebeca Atencia & Alexandra Rosati
Cognitive flexibility is a core component of executive function, a suite of cognitive capacities that enables individuals to update their behavior in dynamic environments. Human executive functions are proposed to be enhanced compared to other species, but this inference is based primarily on neuroanatomical studies. To address this, we examined the nature and origins of cognitive flexibility in chimpanzees, our closest living relatives. Across three studies, we examined different components of cognitive flexibility using reversal...

Data from: Sensitivity to line-of sight in tolerant versus despotic macaques (Macaca sylvanus and Macaca mulatta)

Alexandra Rosati & Rosemary Bettle
Complex social life is considered important to the evolution of cognition in primates. One key aspect of primate social interactions concerns the degree of competition that individuals face in their social group. To examine how social tolerance versus competition shapes social cognition, we experimentally assessed capacities for flexible gaze-following in more tolerant Barbary macaques (Macaca sylvanus) and compared to previous data from despotic rhesus macaques (Macaca mulatta). Monkeys experienced one of two possible conditions. In...

Data accompanying: Population-specific patterns of toxin sequestration in monarch butterflies from around the world

Micah Freedman, Sue-Ling Choquette, Santiago Ramírez, Sharon Strauss, Mark Hunter & Rachel Vannette
Animals frequently defend themselves against predators and parasites using toxins obtained from their diets. Monarch butterflies are a preeminent example of toxin sequestration and gain protection from cardenolides in their milkweed host plants. Although sequestration behavior is well-studied in monarchs, relatively little research has studied genetic variation in sequestration ability. In this study, we use the monarch’s global range expansion to test hypotheses about how cardenolide sequestration has evolved over recent evolutionary history. First, using...

In vitro cell cycle oscillations exhibit a robust and hysteretic response to changes in cytoplasmic density

Minjun Jin, Franco Tavella, Shiyuan Wang & Qiong Yang
Cells control the properties of the cytoplasm to ensure proper functioning of biochemical processes. Recent studies showed that cytoplasmic density varies in both physiological and pathological states of cells undergoing growth, division, differentiation, apoptosis, senescence, and metabolic starvation. Little is known about how cellular processes cope with these cytoplasmic variations. Here, we study how a cell cycle oscillator comprising cyclin-dependent kinase (Cdk1) responds to changes in cytoplasmic density by systematically diluting or concentrating cycling Xenopus...

Registration Year

  • 2022

Resource Types

  • Dataset


  • University of Michigan–Ann Arbor
  • Duke University
  • University of Washington
  • University of Michigan, Ann Arbor, MI (US)
  • University of Michigan-Ann Arbor
  • Jet Propulsion Laboratory, Pasadena, CA (US)
  • Arizona State University
  • Harvard University, Cambridge, MA (US)
  • University of Bristol
  • 2