37 Works

Data from: Shifts in timing and duration of breeding for 73 boreal bird species over four decades

Maria Hällfors, Laura Antão, Malcolm Itter, Aleksi Lehikoinen, Tanja Lindholm, Tomas Roslin & Marjo Saastamoinen
Breeding timed to match optimal resource abundance is vital for the successful reproduction of species, and breeding is therefore sensitive to environmental cues. As the timing of breeding shifts with a changing climate, this may not only affect the onset of breeding, but also its termination, and thus the length of the breeding period. We use an extensive dataset of over 820K nesting records of 73 bird species across the boreal region in Finland to...

Data from: Does facial hair greying in chimpanzees provide a salient progressive cue of aging?

Elizabeth Tapanes, Jason Kamilar, Brenda Bradley & Stephanie Anestis
The greying of human head hair is arguably the most salient marker of human aging. In wild mammal populations, greying can change with life history or environmental factors (e.g., sexual maturity in silverback gorillas). Yet, whether humans are unique in our pattern of age-related hair depigmentation is unclear. We examined the relationship between pigmentation loss in facial hair (greying) to age, population, and sex in wild and captive chimpanzees (Pan troglodytes). Digital facial photographs representing...

Hedgehog signaling is necessary and sufficient to mediate craniofacial plasticity in teleosts

Craig Albertson, Dina Navon, Ira Male, Emily Tetrault, Benjamin Aaronson & Rolf Karlstrom
Phenotypic plasticity, the ability of a single genotype to produce multiple phenotypes under different environmental conditions, is critical for the origins and maintenance of biodiversity; however, the genetic mechanisms underlying plasticity as well as how variation in those mechanisms can drive evolutionary change remain poorly understood. Here, we examine the cichlid feeding apparatus, an icon of both prodigious evolutionary divergence and adaptive phenotypic plasticity. We first provide a tissue-level mechanism for plasticity in craniofacial shape...

Effect of soil carbon amendments in reversing the legacy effect of plant invasion

Vidya Suseela, Ziliang Zhang & Prasanta Bhowmik
1. Invasive plant species are key drivers of global environmental changes leading to the disruption of ecosystems they invade. Many invasive species engage in novel niche construction through plant-soil feedbacks facilitated by the input of secondary compounds, which help their further spread and survival. These compounds can persist in soil even after the removal of the invader thus creating a legacy effect that inhibits the return of native flora and fauna. Thus, formulating active intervention...

Habitat use as an indicator of adaptive capacity to climate change

Claire Teitelbaum, Alexej Siren, Ethan Coffel, Jane Foster, Jacqueline Frair, Joseph Hinton, Radley Horton, David Kramer, Corey Lesk, Colin Raymond, David Wattles, Katherine Zeller & Toni Lyn Morelli
Aim: Populations of cold-adapted species at the trailing edges of geographic ranges are particularly vulnerable to the negative effects of climate change from the combination of exposure to warm temperatures and high sensitivity to heat. Many of these species are predicted to decline under future climate scenarios, but they could persist if they can adapt to warming climates either physiologically or behaviorally. We aim to understand local variation in contemporary habitat use and use this...

Assessing chemical mechanisms underlying the effects of sunflower pollen on a gut pathogen in bumble bees

Lynn Adler, Alison Fowler, Rosemary Malfi, Patrick Anderson, Lily Coppinger, Pheobe Deneen, Stephanie Lopez, Rebecca Irwin, Iain Farrell & Philip Stevenson
Many pollinator species are declining due to a variety of interacting stressors including pathogens, sparking interest in understanding factors that could mitigate these outcomes. Diet can affect host-pathogen interactions by changing nutritional reserves or providing bioactive secondary chemicals. Recent work found that sunflower pollen (Helianthus annuus) dramatically reduced cell counts of the gut pathogen Crithidia bombi in bumble bee workers (Bombus impatiens), but the mechanism underlying this effect is unknown. Here we analyzed methanolic extracts...

Data for \"Hydrogeologic and Geochemical Distinctions within Freshwater Brine Systems in Salar Environments\"

Sarah McKnight, Lee Ann Munk, David Boutt, Brendan Moran & Jordan Jenckes

Early life exposure to environmental contaminants (BDE-47, TBBPA, and BPS) produced persistent gut dysbiosis in adult male mice

Julia Yue Cui, Matthew Gomez, Alexander Suvorov, Xiaojian Shi, Haiwei Gu & Sridhar Mani
The gut microbiome is a pivotal player in toxicological responses. We investigated the effects of maternal exposure to 3 human health-relevant toxicants (BDE-47, TBBPA, and BPS) on the composition and metabolite levels (bile acids [BAs] and short chain fatty acids [SCFAs]) of the gut microbiome in adult pups. CD-1 mouse dams were orally exposed to vehicle (corn oil, 10ml/kg), BDE-47 (0.2 mg/kg), TBBPA (0.2 mg/kg), or BPS (0.2 mg/kg) once daily from gestational day 8...

Evolutionary variation in MADS-box dimerization affects floral development and protein abundance in maize

Madelaine Bartlett, Jazmin Abraham-Juarez & Amanda Schrager-Lavelle
Interactions between MADS-box transcription factors are critical in the regulation of floral development, and shifting MADS-box protein-protein interactions are predicted to have influenced floral evolution. However, precisely how evolutionary variation in protein-protein interactions affects MADS-box protein function remains unknown. To assess the impact of changing MADS-box protein-protein interactions on transcription factor function, we turned to the grasses, where interactions between B-class MADS-box proteins vary. We tested the functional consequences of this evolutionary variability using maize...

Locomotion and paleoclimate explain the re-evolution of quadrupedal body form in Brachymeles lizards

Philip Bergmann, , Elyse Freitas, Duncan Irschick, Gunter Wagner & Cameron Siler
Evolutionary reversals, including re-evolution of lost structures, are commonly found in phylogenetic studies. However, we lack an understanding of how these reversals happen mechanistically. A snake-like body form has evolved many times in vertebrates, and occasionally, a quadrupedal form has re-evolved, including in Brachymeles lizards. We use body form and locomotion data for species ranging from snake-like to quadrupedal to address how a quadrupedal form could re-evolve. We show that large, quadrupedal species are faster...

Registration Year

  • 2020

Resource Types

  • Dataset


  • University of Massachusetts Amherst
  • Royal Botanic Gardens
  • University of Alaska Anchorage
  • Yale University
  • Cornell University
  • Rutgers University
  • University of Montana
  • Binghamton University
  • University of Washington
  • Columbia University