75 Works

Data from: Wildfire catalyzes upward range expansion of trembling aspen in southern Rocky Mountain beetle-killed forests

Katherine Nigro, Monique Rocca, Mike Battaglia, Jonathan Coop & Miranda Redmond
In this study, we assessed whether recent wildfires and spruce beetle outbreaks promoted upward range expansion of trembling aspen (Populus tremuloides) in the San Juan Mountains of southern Colorado. We assessed aerial imagery for presence/absence of aspen in the study area and ground truthed a subset of these points to compare the aerial imagery analysis with field records of aspen. From these data we determined the upper elevational limit of aspen in the study area...

Data from: Virus infection and host plant suitability affect feeding behaviors of cannabis aphid (Hemiptera: Aphididae), a newly described vector of potato virus Y

William Pitt, Lisa Kairy, Emily Villa, Vamsi Nalam & Punya Nachappa
Aphids are the most prolific vectors of plant viruses resulting in significant yield losses to crops worldwide. Potato virus Y (PVY) is transmitted in a non-persistent manner by 65 species of aphids. With the increasing acreage of hemp (Cannabis sativa L.) (Rosales: Cannabaceae) in the U.S, we were interested to know if the cannabis aphid (Phorodon cannabis Passerini) (Hemiptera: Aphididae) is a potential vector of PVY. Here, we conduct transmission assays and utilize the electrical...

Information on marine management policies for invasive lionfish in the Western Atlantic Ocean and Mediterranean Sea

Allison C. Candelmo, Aylin Ulman, Fadilah Z. Ali, Stephen R. Gittings, Summer R. Huber, Lauryn E. Magno, Kaylin R. Clements, Burak Ali Çiçek, Jennifer K. Chapman, Fabian C. Kyne, Michel Bariche, Kimani Kitson-Walters, Francesco Tiralongo, Demetris Kletou, Taner Yildiz, Nir Stern, Sara A.A. Al Mabruk, Mohammed Adel, Nejmeddine Bradai, Shevy B.S. Rothman, Vasileios Minasidis, Stephanie J. Green, Jennifer N. Solomon, Holden E. Harris, Philip E. Karp … & James V Hart
The invasion of lionfish (Pterois volitans and P. miles) in the Western Atlantic is perhaps the best studied marine fish invasion to date; meanwhile another lionfish invasion is rapidly evolving in the Mediterranean. We reviewed lionfish management policies from several decades in the Western Atlantic to suggest policy recommendations for the Mediterranean. These strategic recommendations are synthesized in our corresponding manuscript titled: “Lessons from the Western Atlantic lionfish invasion can inform policy and management strategies...

Strategies to Mitigate Enteric Methane Emissions by Ruminants

C. Arndt, A.N. Hristov, W.J. Price, S.C. McClelland, A.M. Pelaez, A.R. Bayat, L.A. Crompton, J. Dijkstra, M.A. Eugène, D. Enahoro, E. Kebreab, M. Kreuzer, M. McGee, C. Martin, C.J. Newbold, C.K. Reynolds, A. Schwarm, K.J. Shingfield, J.B. Veneman, D.R. Yáñez-Ruiz & Z. Yu
To meet the 1.5°C target, methane (CH4) from ruminants must be reduced by 11 to 30% of the 2010 level by 2030 and by 24 to 47% by 2050. A meta-analysis identified strategies to decrease product-based [PB; CH4 per unit meat or milk (CH4I)] and absolute (ABS) enteric CH4 emissions while maintaining or increasing animal productivity (AP; weight gain and milk yield). Next the potential of different adoption rates of one PB and/or ABS strategies...

Long evolutionary history of an emerging fungal pathogen of diverse tree species in eastern Asia, Australia, and the Pacific Islands

Olga Kozhar, Mee-Sook Kim, Jorge Ibarra Caballero, Ned B. Klopfenstein, Phil Cannon & Jane Stewart
Emerging plant pathogens have been increasing exponentially over the last century. To address this issue, it is critical to determine whether these pathogens are native to ecosystems or have been recently introduced. Understanding the ecological and evolutionary processes fostering emergence can help to manage their spread and predict epidemics/epiphytotics. Using restriction site-associated DNA sequencing data, we studied genetic relationships, pathways of spread, and evolutionary history of Phellinus noxius, an emerging root-rotting fungus of unknown origin,...

Clock-linked genes underlie seasonal migratory timing in a diurnal raptor

Christen Bossu, Julie Heath, Gregory Kaltenecker, Barbara Helm & Kristen Ruegg
Seasonal migration is a dynamic natural phenomenon that allows organisms to exploit favorable habitats across the annual cycle. While the morphological, physiological, and behavioral changes associated with migratory behavior are well characterized, the genetic basis of migration and its link to endogenous biological timekeeping pathways is poorly understood. Historically, genome-wide research has focused on genes of large effect, whereas many genes of small effect may work together to regulate complex traits like migratory behavior. Here,...

Limited legacy effects of extreme multi-year drought on carbon and nitrogen cycling in a mesic grassland

Leena Vilonen, John Blair, Pankaj Trivedi, Lydia Zeglin & Melinda Smith
The intensification of drought throughout the US Great Plains has the potential to have large impacts on grassland functioning, as has been shown with dramatic losses of plant productivity annually. Yet, we have a poor understanding of how grassland functioning responds after drought ends. This study examined how belowground nutrient cycling responds after drought and whether legacy effects persist post-drought. We assessed the two-year recovery of nutrient cycling processes following a four-year experimental drought in...

Monitoring resistance and resilience using carbon trajectories: analysis of forest management-disturbance interactions

Thomas Seth Davis, Arjan Meddens, Camille Stevens-Rumann, Vincent Jansen, Jason Sibold & Mike Battaglia
A changing climate is altering ecosystem carbon dynamics with consequences for natural systems and human economies, but there are few tools available for land managers to meaningfully incorporate carbon trajectories into planning efforts. To address uncertainties wrought by rapidly changing conditions, many practitioners adopt resistance and resilience as ecosystem management goals, but these concepts have proven difficult to monitor across landscapes. Here, we address the growing need to understand and plan for ecosystem carbon with...

Does the presence of the biological control agent, Hypena opulenta (Lepidoptera: Erebidae) on Swallow-Worts deter Monarch oviposition?

Marianna Szucs, Brianna Alred, Ruth Hufbauer, Nathan Haan & Douglas A Landis
Abstract Invasive black and pale swallow-worts (Vincetoxicum nigrum (L.) Moench, and Vincetoxicum rossicum Kelopow), which are related to milkweeds, can act as ecological traps for monarch butterflies (Danaus plexippus L. (Lepidoptera: Nymphalidae)) as they lay eggs on them that fail to develop. A recently approved biological control agent against swallow-worts, Hypena opulenta Christoph, occupies the same feeding guild on swallow-worts as monarch larvae and could be perceived as a competitor to monarchs. We tested how...

Maternal survival costs in an asocial mammal: Data and analysis

Lise Aubry
Abstract. Maternal characteristics, social dynamics, and environmental factors can all influence reproduction and survival as well as shape trade-offs that might arise between these components of fitness. Short-lived mammals like the golden-mantled ground squirrel (GMGS; Callospermophilus lateralis) tend to maximize effort towards current reproduction at the expense of survival but may be complicated by other aspects of the species’ life history and environment.. Here, we use 25 years of data (1995-2020) collected from a population...

Lack of avian predators is associated with behavioural plasticity in nest construction and height in an island songbird

Rebecca Cheek, Sarah Hays, James Mouton, Scott Sillett & Cameron Ghalambor
Orange-crowned warblers, Leiothlypis celata sordida, breeding on the California Channel Islands exhibit remarkable variation in their nest structure and placement, providing an intriguing exception to the general pattern that avian nest structure and nest site selection are highly conserved characters. We examined nest construction at both the population and individual scale to test whether warblers on Santa Catalina Island change their nest construction in response to nest height. At the population level, warblers built both...

Experimental evidence that host species composition alters host-pathogen dynamics in a ranavirus-amphibian assemblage

Paul Snyder, Chloe Ramsay, Carmen Harjoe, Emily Khazan, Cheryl Briggs, Jason Hoverman, Pieter Johnson, Daniel Preston, Jason Rohr & Andrew Blaustein
Losses in biodiversity can alter disease risk through changes in host species composition. Host species vary in pathogen susceptibility and competence. Yet how changes in diversity alter host-pathogen dynamics remains unclear in many systems, particularly with respect to generalist pathogens. Amphibians are experiencing worldwide population declines linked to generalist pathogens, such as ranavirus, and thus represent an ideal group to investigate how host species composition affects disease risk. We conducted experiments where individuals in the...

Body size and digestive system shape resource selection by ungulates: a cross-taxa test of the Forage Maturation Hypothesis

Saeideh Esmaeili, Brett Jesmer, Shannon Albeke, Ellen Aikens, Kathryn Schoenecker, Sarah King, Briana Abrahms, Bayarbaatar Buuveibaatar, Jeffrey Beck, Randall Boone, Francesca Cagnacci, Simon Chamaillé-Jammes, Buyanaa Chimeddorj, Paul Cross, Nandintsetseg Dejid, Jagdag Enkhbayar, Ilya Fischhoff, Adam Ford, Kate Jenks, Mahmoud-Reza Hemami, Jacob Hennig, Takehiko Ito, Petra Kaczensky, Matthew Kauffman, John Linnell … & Jacob Goheen
The Forage Maturation Hypothesis (FMH) states that energy intake for ungulates is maximized when forage biomass is at intermediate levels. Nevertheless, metabolic allometry and different digestive systems suggest that resource selection should vary across ungulate species. By combining GPS relocations with remotely-sensed data on forage characteristics and surface water, we quantified the effect of body size and digestive system in determining movements of 30 populations of hindgut fermenters (equids) and ruminants across biomes. Selection for...

Rapid and transient evolution of local adaptation to seasonal host fruits in an invasive pest fly

Laure Olazcuaga, Julien Foucaud, Candice Deschamps, Anne Loiseau, Jean-Loup Claret, Romain Vedovato, Robin Guilhot, Cyril Sevely, Mathieu Gautier, Ruth A. Hufbauer, Nicolas O. Rode & Arnaud Estoup
Both local adaptation and adaptive phenotypic plasticity can influence the match between phenotypic traits and local environmental conditions. Theory predicts that environments stable for multiple generations promote local adaptation, while highly heterogeneous environments favor adaptive phenotypic plasticity. However, when environments have periods of stability mixed with heterogeneity, the relative importance of local adaptation and adaptive phenotypic plasticity is unclear. Here, we used Drosophila suzukii as a model system to evaluate the relative influence of genetic...

Simulation datasets for: Intense surface winds from gravity wave breaking in simulations of a destructive macroburst

Russ Schumacher, Samuel Childs & Rebecca Adams-Selin
Shortly after 0600 UTC (midnight MDT) 9 June 2020, a convective line produced severe winds across parts of northeast Colorado that caused extensive damage, especially in the town of Akron. High-resolution observations showed gusts exceeding 50 m s-1, accompanied by extremely large pressure fluctuations, including a 5-hPa pressure surge in 19 s immediately following the strongest winds and a 15-hPa pressure drop in the following 3 min. Numerical simulations of this event (using the WRF...

The genetic basis of plumage coloration and elevation adaptation in a clade of recently diverged alpine and arctic songbirds

Erik Funk, Garth Spellman, Kevin Winker, Jack Withrow, Kristen Ruegg & Scott Taylor
Trait genetic architecture plays an important role in the probability that variation in that trait leads to divergence and speciation. In some cases, speciation may be driven by the generation of novel phenotypes through the recombination of genes associated with traits that are important for local adaptation or sexual selection. Here, we investigate the genetic basis of three plumage color traits, and one ecological trait, breeding elevation, in a recent avian radiation, the North American...

Reproductive benefits associated with dispersal in headwater populations of Trinidadian guppies (Poecilia reticulata)

Isabela Lima Borges, Jillian Dangerfield, Lisa Angeloni, Chris Funk & Sarah Fitzpatrick
Theory suggests that the evolution of dispersal is balanced by its fitness costs and benefits, yet empirical evidence is sparse due to the difficulties of measuring dispersal and fitness in natural populations. Here, we use spatially-explicit data from a multi-generational capture-mark-recapture study of two populations of Trinidadian guppies (Poecilia reticulata) along with pedigrees to test whether there are fitness benefits correlated with dispersal. Combining these ecological and molecular datasets allows us to directly measure the...

Data from: Interindividual variation in the use of social information during learning in honeybees

Catherine Tait
Slow-fast differences in cognition among individuals have been proposed to be an outcome of the speed-accuracy trade-off in decision-making. Based on the different costs associated with acquiring information via individual and social learning, we hypothesized that slow-fast cognitive differences would also be tied to the adoption of these different learning modes. Since foragers in honeybee colonies likely have both these information acquisition modes available to them, we chose to test them for inter-individual differences in...

Lake Agnes Rock Glacier TLS/SfM survey - Lake Agnes Rock Glacier TLS U-074 PS01 SV03

DANIEL MCGRATH, Keith Williams, Marianne Okal, Brianna Rick, Lucas Zeller, Anna Marshall, Erika Schreiber & Diana Krupnik

Habitat-linked genetic variation supports microgeographic adaptive divergence in an island-endemic bird species

Rebecca Cheek, Brenna Forrester, Daryl Trumbo, Patricia Salerno, Nancy Chen, T. Scott Sillett, Scott Morrison, Cameron Ghalambor & W. Chris Funk
We present evidence for and investigate potential mechanisms driving habitat-linked genetic divergence within a bird species endemic to a single 250 km2 island. The island scrub-jay (Aphelocoma insularis) exhibits microgeographic divergence in bill morphology across pine-oak ecotones on Santa Cruz Island, California (USA) similar to adaptive differences described in mainland congeners over much larger geographic scales. To test whether individuals exhibit genetic differentiation related to habitat type and divergence in bill length, we genotyped over...

Population genetics reveals bidirectional fish movement across the Continental Divide via an interbasin water transfer

Audrey Harris, Sara Oyler-McCance, Jennifer Fike, Matthew Fairchild, Christopher Kennedy, Harry Crockett, Dana Winkelman & Yoichiro Kanno
Interbasin water transfers are becoming an increasingly common tool to satisfy municipal and agricultural water demand, but their impacts on movement and gene flow of aquatic organisms are poorly understood. The Grand Ditch is an interbasin water transfer that diverts water from tributaries of the upper Colorado River on the west side of the Continental Divide to the upper Cache la Poudre River on the east side of the Continental Divide. We used single nucleotide...

Data from: Applicability of artificial neural networks to integrate socio-technical drivers of buildings recovery following extreme wind events

Stephanie Pilkington & Hussam Mahmoud
The data provided and the associated MATLAB code were used to build an Artificial Neural Network Model to capture the reconstruction (recovery) of various buildings subjected to tornado events in the State of Missouri. The ANN model utilizes relevant tornado, societal demographic, and structural data to determine a building’s resulting damage state from an extreme wind event and the subsequent recovery time. Abstract for the publication is as follows: In a companion article, previously published...

Forecasting climate change response in an alpine specialist songbird reveals the importance of considering novel climate

Matthew DeSaix, Kristen Ruegg, Erika Zavaleta, Luke George & Garth Spellman
Species persistence in the face of climate change depends on both ecological and evolutionary factors. Here, we integrate ecological and whole-genome sequencing data to describe how populations of an alpine specialist, the Brown-capped Rosy-Finch (Leucosticte australis) may be impacted by climate change. We sampled 116 Brown-capped Rosy-Finches from 11 sampling locations across the breeding range. Using 429,442 genetic markers from whole-genome sequencing, we described population genetic structure and identified a subset of 436 genomic variants...

Near-shore island lizard fauna shaped by a combination of human-mediated and natural dispersal

Jeanne Robertson, Patricia Salerno, Lauren Chan, W. Chris Funk & Gregory Pauly
Aim: Island biotas provide opportunities to study colonization and adaptation to novel environments. Islands, especially near-shore islands, may have a long record of human habitation such that some lineages result from human-assisted introductions. Here, we combine phylogenetic analyses with fossil data and historical specimen records to reconstruct colonization histories, characterize among-island divergence, and assess the role of humans in shaping the evolutionary history of lizards inhabiting a near-shore island archipelago. Location: Channel Islands and adjacent...

Isotopic niche partitioning and individual specialization in an Arctic raptor guild

Devin L. Johnson, Michael T. Henderson, David L. Anderson, Travis L. Booms & Cory T. Williams
Intra- and inter-specific resource partitioning within predator communities is a fundamental component of trophic ecology, and one proposed mechanism for how populations partition resources is through individual niche variation. The Niche Variation Hypothesis (NVH) predicts that inter-individual trait variation leads to functional trade-offs in foraging efficiency, resulting in populations composed of individual dietary specialists. The degree to which niche specialization persists within a population is plastic and responsive to fluctuating resource availability. We quantified niche...

Registration Year

  • 2022

Resource Types

  • Dataset


  • Colorado State University
  • University of Colorado Boulder
  • US Forest Service
  • University of Wyoming
  • Princeton University
  • Natural History Museum of Los Angeles County
  • United States Geological Survey
  • Cleveland State University
  • Denver Museum of Nature and Science
  • California State University, Northridge