88 Works

Data from: Predictive mapping to identify refuges for plant communities threatened by earthworm invasion

Jesse Fleri & Peter Arcese
1. Biological invasions by cryptic ecosystem engineers can alter the ecological and socio-economic values of ecosystems in ways that may take decades to detect. The invasion of North American glacial refuges by non-native earthworms offers a prominent but understudied example of a cryptic invasion. Non-native earthworms are known to alter carbon sequestration, disrupt mycorrhizal networks, and homogenize plant communities, but natural resource managers still lack robust protocols to identify and safeguard high conservation value communities...

Atmospheric pressure influencing ebullition and turbidity

Kai Zhao, Edmund Tedford, Marjan Zare & Gregory Lawrence
Methane ebullition from lake sediment is an important source of atmospheric methane. Previous studies have suggested that temperature variations, water level changes, atmospheric pressure fluctuations and wind-induced current can affect ebullition. However, most of those studies were conducted during open-water season. There is a lack of observations during ice-cover, despite of the abundance of seasonally ice-covered lakes. In this dataset, we present high-frequency ebullition intensity data, atmospheric pressure data, bottom-water temperature data, and turbidite data...

2D and 3D coral models imaged in Curaçao: George, Mullinix, et al PeerJ 2021

Emma E. George, James A. Mullinix, Fanwei Meng, Barbara A. Bailey, Clinton Edwards, Ben Felts, Andreas F. Haas, Aaron Hartmann, Benjamin Mueller, Ty F. Roach, Peter Salamon, Cynthia Silveira, Mark Vermeij, Forest Rohwer & Antoni Luque
Abstract from the article associated with the dataset: George, Mullinix, et al PeerJ 2021. Reef-building corals are ecosystem engineers that compete with other benthic or- ganisms for space and resources. Corals harvest energy through their surface by photosynthesis and heterotrophic feeding, and they divert part of this energy to defend their outer colony perimeter against competitors. Here, we hypothesized that corals with a larger space-filling surface and smaller perimeters increase energy gain while reducing the...

Data from: Forecasting the cumulative effects of multiple stressors on breeding habitat for a steeply declining aerial insectivorous songbird, the olive-sided flycatcher (Contopus cooperi)

Andrea Norris, Leonardo Frid, Chloé Debyser, Krista De Groot, Jeffrey Thomas, Adam Lee, Kimberly Dohms, Andrew Robinson, Wendy Easton, Kathy Martin & Kristina Cockle
To halt ongoing loss in biodiversity, there is a need for landscape-level management recommendations that address cumulative impacts of anthropogenic and natural disturbances on wildlife habitat. We examined the cumulative effects of logging, roads, land-use change, fire, and bark beetle outbreaks on future habitat for olive-sided flycatcher (Contopus cooperi), a steeply declining aerial insectivorous songbird, in Canada's western boreal forest. To predict the occurrence of olive-sided flycatcher we developed a suite of habitat suitability models...

Cascading effects of algal warming in a freshwater community

Michelle Tseng, Carla Di Filippo, Madeline Fung, Jihyun Kim, Ian Forster & Yilin Zhou
1. Much of our research on the effects of ongoing climate warming on ecological communities is focused on how temperature affects resource quantity. However, resource quality is also affected by warming, and changes in resource quality can have meaningful effects on the productivity of higher trophic levels. 2. Aquatic communities in particular are likely to affected by temperature-mediated shifts in resource quality because the nutritional value of algae is highly sensitive to temperature. For example,...

Quantitative trait locus mapping reveals an independent genetic basis for joint divergence in leaf function, life-history, and floral traits between scarlet monkeyflower (Mimulus cardinalis) populations

Lila Fishman, Thomas C. Nelson, Christopher D. Muir, Angela M. Stathos, Daniel D. Vanderpool, Kayli Anderson & Amy L. Angert
PREMISE Across taxa, vegetative and floral traits that vary along a fast-slow life-history axis are often correlated with leaf functional traits arrayed along the leaf economics spectrum, suggesting a constrained set of adaptive trait combinations. Such broad-scale convergence may arise from genetic constraints imposed by pleiotropy (or tight linkage) within species, or from natural selection alone. Understanding the genetic basis of trait syndromes and their components is key to distinguishing these alternatives and predicting evolution...

Long-term change in the parasite burden of shore crabs (Hemigrapsus oregonensis and H. nudus) on the northwestern Pacific coast of North America

Jessica Quinn, Sarah Lee, Duncan Greeley, Alyssa Gehman, Armand Kuris & Chelsea Wood
The abundances of free-living species have changed dramatically in recent decades, but little is known about change in the abundance of parasitic species. We investigated whether populations of several parasites have shifted over time in two shore crab hosts, Hemigrapsus oregonensis and H. nudus, by comparing the prevalence and abundance of three parasite taxa in a historical dataset (1969–1970) to contemporary parasite abundance (2018–2020) for hosts collected from 11 intertidal sites located from Oregon, USA...

The latitudinal gradient in rates of evolution for bird beaks, a species interaction trait

Benjamin Freeman, Thomas Weeks, Dolph Schluter & Joseph Tobias Tobias
Where is evolution fastest? The biotic interactions hypothesis proposes that greater species richness creates more ecological opportunity, driving faster evolution at low latitudes, whereas the “empty niches” hypothesis proposes that ecological opportunity is greater where diversity is low, spurring faster evolution at high latitudes. We tested these contrasting predictions by analyzing rates of beak evolution for a global dataset of 1141 avian sister species. Rates of beak size evolution are similar across latitudes, with some...

Genetic diversity and population structure of two endangered neotropical parrots inform In Situ and Ex Situ conservation strategies

Carlos I Campos, Melinda A Martinez, Daniel Acosta, Jose A Diaz-Luque, Igor Berkunsky, Nadine Lamberski, Javier Cruz-Nieto, Michael A. Russello & Timothy F. Wright
A key aspect in the conservation of endangered populations is understanding patterns of genetic variation and structure, which can provide managers with critical information to support evidence-based status assessments and management strategies. This is especially important for species with small wild and larger captive populations, as found in many endangered parrots. We used genotypic data to assess genetic variation and structure in wild and captive populations of two endangered parrots, the blue-throated macaw, Ara glaucogularis,...

Data from: The molecular phylogeny of Chionaster nivalis reveals a novel order of psychrophilic and globally distributed Tremellomycetes (Fungi, Basidiomycota)

Nicholas Irwin, Chantelle Twynstra, Varsha Mathur & Patrick Keeling
Snow and ice present challenging substrates for cellular growth, yet microbial snow communities not only exist, but are diverse and ecologically impactful. These communities are dominated by green algae, but additional organisms, such as fungi, are also abundant and may be important for nutrient cycling, syntrophic interactions, and community structure in general. However, little is known about these non-algal community members, including their taxonomic affiliations. An example of this is Chionaster nivalis, a unicellular fungus...

Phosphorus deficiencies invoke optimal allocation of exoenzymes by ectomycorrhizas

Marty Kranabetter, Justin Meeds, Ieva Zigg, Dave Dunn, Francois Miros, Paul Shipley & Melanie Jones
Ectomycorrhizal (EM) fungi can acquire phosphorus (P) through the production of extracellular hydrolytic enzymes (exoenzymes), but it is unclear as to the manner and extent native EM fungal communities respond to declining soil P availability. We examined the activity of six exoenzymes (xylosidase, N-acetyl glucosaminidase, b-glucosidase, acid phosphomonoesterase, acid phosphodiesterase [APD], laccase) from EM roots of Pseudotsuga menzesii across a soil podzolization gradient of coastal British Columbia. We found APD activity increased 4-fold in a...

Plant-pollinator specialization: Origin and measurement of curvature

Mannfred Boehm, Jill Jankowski & Quentin Cronk
A feature of biodiversity is the abundance of curves displayed by organs and organisms. Curvature is a widespread, convergent trait that has important ecological and evolutionary implications. In pollination ecology, the curvature of flowers and pollinator mouthparts (e.g. hummingbird bills) along the dorsiventral plane has been associated with specialization, competition, and species co-existence. Six methods have historically been used to measure curvature in pollination systems; we provide a solution to this inconsistency by defining curvature...

Data from: Genome-wide analysis reveals associations between climate and regional patterns of adaptive divergence and dispersal in American pikas

Danielle Schmidt, Matthew Waterhouse, Bryson Sjodin & Michael Russello
Understanding the role of adaptation in species responses to climate change is important for evaluating the evolutionary potential of populations and informing conservation efforts. Population genomics provides a useful approach for identifying putative signatures of selection and the underlying environmental factors or biological processes that may be involved. Here, we employed a population genomic approach within a space-for-time study design to investigate the genetic basis of local adaptation and reconstruct patterns of movement across rapidly...

Registration Year

  • 2021

Resource Types

  • Dataset


  • University of British Columbia
  • Fisheries and Oceans Canada
  • Simon Fraser University
  • University of Toronto
  • University of Washington
  • University of Minnesota
  • Stanford University
  • The Nature Conservancy
  • University of Alberta
  • Dalhousie University