65 Works

A meta-analysis of the effects of habitat aridity, evolutionary history of grazing, and grazing intensity on bee and butterfly communities worldwide

Khum Thapa-Magar, Seth Davis & Maria Fernandez-Gimenez
A variety of habitat-associated factors moderate effects of grazing on insect biodiversity. Here, we examine how aridity, evolutionary history of grazing, and grazing intensity individually and interactively mediate the effect of livestock grazing on pollinator diversity (native bees and butterflies). Using a meta-analysis of 59 studies published in the primary literature we characterized the response of pollinator communities to grazing across several continents. In very humid habitats high grazing intensities generally had negative impacts on...

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...

Oviposition preference and performance of Plutella xylostella are modulated by natural enemies, larval odours and immune status

Enakshi Ghosh, Aswathi Sasidharan, Paul Ode & Radhika Venkatesan
Insect herbivores frequently must balance host plant quality and the risk of attack by their natural enemies when making oviposition decisions. Yet, which factor is more important remains unresolved in plant-insect ecology. Here, we report the oviposition preference and larval performance of the brassicaceous specialist Plutella xylostella, in the context of plant quality (cabbage Brassica oleracea, vs. mustard B. juncea) and associated natural enemies. Despite the greater larval weight and adult life-span on cabbage, ovipositing...

Data from: Plasticity of snowy plover incubation behaviors in response to risks of nest predation

Kristen Ellis
Nest predation influences population dynamics and is thought to exert strong selection on the evolution of avian life history. Because parental behaviors can attract the attention of nest predators, incubating birds are predicted to decrease conspicuous behaviors at the nest-site and increase incubation constancy when risks of nest predation are high. We examined whether snowy plovers Charadrius nivosus responded to predator-specific risks of nest predation, using the number of off bouts and daily nest attendance...

Restoration and fuel hazard reduction result in equivalent reductions in Crown fire behavior in dry conifer forests

Scott Ritter, Chad Hoffman, Michael Battaglia & Theresa Jain
Over the past several decades, the management of historically frequent-fire forests in the western U.S. has received significant attention due to the linked ecological and social risks posed by the increased occurrence of large, contiguous patches of high-severity fire. As a result, efforts are underway to simultaneously reduce potential fire and fuel hazards and restore characteristics indicative of historical forest structures and ecological processes that enhance the diversity and quality of wildlife habitat across landscapes....

Urban environments have species-specific associations with invasive insect herbivores

Jacqueline Buenrostro & Ruth Hufbauer
Urban areas are expanding rapidly, with the majority of the global and US population inhabiting them. Urban forests are critically important for providing ecosystem services to the growing urban populace, but their health is threatened by invasive insects. Insect density and damage are highly variable in different sites across urban landscapes, such that trees in some sites experience outbreaks and are severely damaged while others are relatively unaffected. To protect urban forests against damage from...

Metabolic rate and foraging efficiency

Julian Cassano & Dhruba Naug
Metabolic rate is the rate at which organisms process energy and is often considered as the fundamental driver of life history processes. The link between metabolic rate and life history is critically mediated via foraging, which shapes the energy acquisition patterns of an individual. This predicts that individuals with different metabolic rates likely vary in their foraging strategies, although such a link has rarely been empirically investigated in the context of optimal foraging theory -...

Data from: Density-dependence produces spurious relationships among demographic parameters in a harvested species

Thomas Riecke, Madeleine Lohman, Ben Sedinger, Todd Arnold, David Koons, Cliff Feldheim, Frank Rohwer, Michael Schaub, Perry Williams & James Sedinger
1. Harvest of wild organisms is an important component of human culture, economy, and recreation, but can also put species at risk of extinction. Decisions that guide successful management actions therefore rely on the ability of researchers to link changes in demographic processes to the anthropogenic actions or environmental changes that underlie variation in demographic parameters. 2. Ecologists often use population models or maximum sustained yield curves to estimate the impacts of harvest on wildlife...

Tetramolopium stemmermanniae sp. nov. (Asteraceae), a new species found at Pōhakuloa Training Area, Hawaiʻi Island

Steven A. Evans, Nancy E. Hastings, Mitsuko Yorkston & Clifford W. Morden
A new species endemic to Hawaiʻi Island, Tetramolopium stemmermanniae, is described and illustrated. Molecular and morphological evidence support Tetramolopium stemmermanniae as being distinct from Tetramolopium arenarium var. arenarium, Tetramolopium consanguineum ssp. leptophyllum, and Tetramolopium humile ssp. humile, which occur at Pōhakuloa Training Area, Hawaiʻi Island. Tetramolopium stemmermanniae shares an upright and multibranched habit as that of Tetramolopium arenarium var. arenarium and Tetramolopium consanguineum ssp. leptophyllum. It differs in ray and disc flower color and number,...

Compensatory recruitment unlikely in high elevation amphibian populations challenged with disease

Bennett Hardy, Erin Muths, Bradley Lambert, Scott Schneider, Chris Funk & Larissa Bailey
Population-level variation in host responses to disease can be observed across a wide array of host-pathogen systems. Some host populations are extirpated, some persist at lower densities or abundances, and others rebound to pre-disease levels. Understanding the causes of this variation, and the mechanisms of successful persistence, can serve as vital information for species conservation. One such mechanism of population persistence that has gained support in the amphibian Batrachochytrium dendrobatidis (Bd) host-pathogen system is the...

Data for \"Shifting hotspots: Climate change projected to drive contractions and expansions of invasive plant abundance ranges\"

Annette Evans, Evelyn M. Beaury, Peder S. Engelstad & Nathan B. Teich
Invasive plant abundance data. Abundance data for 175 invasive plant species across the lower 48 United States. Each abundance record includes a UniqueID (numbers or characters that appeared to be a unique ID from the original dataset), the dataset from which the datapoint was derived from (see dataset_information.csv file for additional information on each dataset), decimal Longitude (Long), decimal Latitude (Lat), Species Code (SpCode, unique species identifier from USDA PLANTS database), cover (percentage cover), and...

Dataset associated with: The ERM-1 membrane-binding domain directs erm-1 mRNA localization to the plasma membrane in the C. elegans embryo

Lindsay Winkenbach, Dylan Parker, Robert Williams & Erin Osborne Nishimura
mRNA localization and transport are integral in regulating gene expression. In Caenorhabditis elegans' embryos, the maternally inherited mRNA erm-1 (Ezrin/Radixin/Moesin) becomes concentrated in anterior blastomeres. erm-1 mRNA localizes within those blastomeres to the plasma membrane where the essential ERM-1 protein, a membrane-actin linker, is also found. We demonstrate that the localization of erm-1 mRNA to the plasma membrane is translation dependent and requires its encoded N-terminal, membrane-binding (FERM) domain. By perturbing translation through multiple methods,...

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...

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...

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...

Genomics‐informed delineation of conservation units in a desert amphibian

Brenna Forester, Melanie Murphy, Chad Mellison, Jeffrey Petersen, David Pilliod, Rachel Van Horne, Jim Harvey & W. Chris Funk
Delineating conservation units (CUs, e.g., evolutionarily significant units, ESUs, and management units, MUs) is critical to the recovery of declining species because CUs inform both listing status and management actions. Genomic data have strengths and limitations in informing CU delineation and related management questions in natural systems. We illustrate the value of using genomic data in combination with landscape, dispersal, and occupancy data, to inform CU delineation in Nevada populations of the Great Basin Distinct...

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...

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...

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...

A manager’s guide to using eDNA metabarcoding in marine ecosystems

Zachary Gold, Adam R. Wall, Teia M. Schweizer, N. Dean Pentcheff, Emily E. Curd, Paul H. Barber, Rachel S. Meyer, Robert Wayne, Kevin Stolzenbach, Kat Prickett, Justin Luedy & Regina Wetzer
Environmental DNA (eDNA) metabarcoding is a powerful tool that can enhance marine ecosystem/biodiversity monitoring programs. Here we outline five important steps managers and researchers should consider when developing eDNA monitoring program: 1) select genes and primers to target focal taxa; 2) assemble or develop comprehensive barcode reference databases; 3) apply rigorous site occupancy based decontamination pipelines; 4) conduct pilot studies to define spatial and temporal variance of eDNA; and 5) archive samples, extracts, and raw...

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...

Shifting hotspots: Climate change projected to drive contractions and expansions of invasive plant abundance ranges

Annette Evans, Evelyn M. Beaury, Peder S. Engelstad, Nathan B. Teich & Bethany A. Bradley
This file contains maps of current and future abundance suitable habitat for 144 invasive plant species in the United States. Each tiff file represents the current or future range prediction maps of habitat suitable for supporting abundant populations (greater than or equal to 5% cover) of 144 invasive plant taxa, projected across the lower 48 States of the United States. Each tiff file is named with the USDA species code (SpCode) (see 'Species_information.xlsx file for...

Registration Year

  • 2022

Resource Types

  • Dataset


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