37 Works

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

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...

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...

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...

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...

Contrasting environmental drivers of genetic of genetic and phenotypic divergence in an Andean poison frog

Mónica Páez-Vacas, W. Chris Funk & Daryl Trumbo
Phenotypic and genetic divergence are shaped by the homogenizing effects of gene flow and the differentiating processes of genetic drift and local adaptation. Herein, we examined the mechanisms that underlie phenotypic (size and color) and genetic divergence in 35 populations (535 individuals) of the poison frog Epipedobates anthonyi along four elevational gradients (0–1800 m asl) in the Ecuadorian Andes. We found phenotypic divergence in size and color despite relatively low genetic divergence at neutral microsatellite...

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...

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...

Using weather radar to help minimize wind energy impacts on nocturnally migrating birds

Emily B. Cohen, Jeffrey Buler, Kyle G. Horton, Scott R. Loss, Sergio A. Cabrera‐Cruz, Jaclyn A. Smolinsky & Peter P. Marra
As wind energy rapidly expands worldwide, information to minimize impacts of this development on biodiversity is urgently needed. Here we demonstrate how data collected by weather radar networks can inform placement and operation of wind facilities to reduce collisions and minimize habitat-related impacts for nocturnally migrating birds. We found over a third of nocturnal migrants flew through altitudes within the rotor-swept zone surrounding the North American Great Lakes, a continentally important migration corridor. Migrating birds...

Data from: Simple metrics to characterize inter-individual and temporal variation in habitat selection behaviour

Guillaume Bastille-Rousseau & George Wittemyer
1. Individual variation in habitat selection and movement behavior is receiving growing attention, but primarily with respect to characterizing behaviors in different contexts as opposed to decomposing structure in behavior within populations. This focus may be limiting advances in understanding the diversity of individual behavior and its influence on population organization. We propose a framework for characterizing variation in space-use behavior with the aim of advancing interpretation of its form and function. 2. Using outputs...

Dead Again: Predictions of repeat tree die-off under hotter droughts confirm mortality thresholds for a dryland conifer species

Andreas Wion
Tree die-off, driven by extreme drought and exacerbated by a warming climate, is occurring rapidly across every wooded continent - threatening carbon sinks and other ecosystem services provided by forests and woodlands. Forecasting the spatial patterns of tree die-off in response to drought is a priority for the management and conservation of forested ecosystems under projected future hotter and drier climates. Several drought-related metrics have recently been proposed to predict the mortality threshold (i.e., tipping...

Data from: A hierarchical model for jointly assessing ecological and anthropogenic impacts on animal demography

Thomas Riecke, Benjamin Sedinger, Todd Arnold, Dan Gibson, David Koons, Madeleine Lohman, Michael Schaub, Perry Williams & James Sedinger
1. The management of sustainable harvest of animal populations is of great ecological and conservation importance. Development of formal quantitative tools to estimate and mitigate the impacts of harvest on animal populations has positively impacted conservation efforts. 2. The vast majority of existing harvest models, however, do not simultaneously estimate ecological and harvest impacts on demographic parameters and population trends. Given that the impacts of ecological drivers are often equal to or greater than the...

Small giants: Tributaries rescue spatially structured populations from extirpation in a highly fragmented stream

Jun-Ichi Tsuboi, Kentaro Morita, Yusuke Koseki, Shinsuke Endo, Genki Sahashi, Daisuke Kishi, Takeshi Kikko, Daisuke Ishizaki, Masanori Nunokawa & Yoichiro Kanno
Habitat fragmentation is a pervasive threat to biodiversity. Linearly arranged habitats such as stream networks are particularly vulnerable to fragmentation. As the landscape becomes increasingly human-dominated, conservation values of fragmented habitat patches cannot be overlooked. It is critical to understand the demographic mechanisms of population persistence or extirpation in fragmented patches. We studied the dynamics of spatially structured populations of two Japanese landlocked salmonids persisting for > 30 years in a headwater stream network that...

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,...

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...

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...

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...

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...

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...

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...

Behavioral plasticity in nest structure and placement is linked to nesting success in an insular songbird population

Rebecca Cheek, Sarah Hays, James Mouton, Scott Sillett & Cameron Ghalambor
Avian nest structure and the substrate where nests are placed tend to be highly conserved characters. However, orange-crowned warblers (Leiothlypis celata sordida) breeding on the California Channel Islands exhibit remarkable variation in their nest structure and placement compared to their mainland conspecifics. Here we show that the same individuals on Santa Catalina Island build both lighter, grass-dominated ground nests or heavier off-ground nests that contain more ridged materials and less grass, resulting in highly variable...

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,...

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...

Root Production and Morphological Traits During and After Single and Repeated Extreme Droughts in a Mesic Grassland

Ingrid Slette, David Hoover, Melinda Smith & Alan Knapp
Global climate change is expected to cause more frequent extreme droughts in many parts of the world. Despite the crucial role of roots in water acquisition and plant survival, our understanding of ecosystem vulnerability to drought is primarily based on aboveground impacts. As return intervals between droughts decrease, root responses to one drought might alter responses to subsequent droughts, but this remains unresolved. We conducted a 7-year experiment that imposed extreme drought (growing season precipitation...

Registration Year

  • 2022

Resource Types

  • Dataset
  • Text


  • Colorado State University
  • US Forest Service
  • Cleveland State University
  • University of Colorado Boulder
  • University of Idaho
  • Rocky Mountain Research Station
  • Michigan State University
  • National Research Institute for Agriculture, Food and Environment
  • Estación Experimental del Zaidín
  • Eastern Mediterranean University