40 Works

Data from: Effects of spatial scale of sampling on food web structure

Spencer A. Wood, Roly Russell, Dieta Hanson, Richard J. Williams & Jennifer A. Dunne
This study asks whether the spatial scale of sampling alters structural properties of food webs and whether any differences are attributable to changes in species richness and connectance with scale. Understanding how different aspects of sampling effort affect ecological network structure is important for both fundamental ecological knowledge and the application of network analysis in conservation and management. Using a highly resolved food web for the marine intertidal ecosystem of the Sanak Archipelago in the...

Data from: Community rescue in experimental metacommunities

Etienne Low-Décarie, Marcus Kolber, Paige Homme, Andrea Lofano, Alex J. Dumbrell, Andrew Gonzalez & Graham Bell
The conditions that allow biodiversity to recover following severe environmental degradation are poorly understood. We studied community rescue, the recovery of a viable community through the evolutionary rescue of many populations within an evolving community, in metacommunities of soil microbes adapting to a herbicide. The metacommunities occupied a landscape of crossed spatial gradients of the herbicide (Dalapon) and a resource (glucose), whereas their constituent communities were either isolated or connected by dispersal. The spread of...

Data from: Under the influence: sublethal exposure to an insecticide affects personality expression in a jumping spider

Raphaël Royauté, Christopher M. Buddle & Charles Vincent
1. Consistent behavioural differences between individuals have far-reaching implications for ecology and evolution, including how populations cope with increasing anthropogenic changes, notably pesticides. Although sublethal doses of insecticides are known to alter behaviour, current studies on the relationship between toxicants and behaviour tend to ignore effects on individual variation. 2. Our objective was to determine whether sublethal exposure to an organophosphate insecticide could affect the consistency of individual behaviour and disrupt behavioural correlations, in a...

Data from: Historical dynamics of ecosystem services bundles

Delphine Renard, Jeanine M. Rhemtulla & Elena M. Bennett
Managing multiple ecosystem services (ES), including addressing trade-offs between services and preventing ecological surprises, is among the most pressing areas for sustainability research. These challenges require ES research to go beyond the currently common approach of snapshot studies limited to one or two services at a single point in time. We used a spatiotemporal approach to examine changes in nine ES and their relationships from 1971 to 2006 across 131 municipalities in a mixed-use landscape...

Data from: The phylogenetics of succession can guide restoration: an example from abandoned mine sites in the subarctic

Stephanie Shooner, Chelsea Chisholm & Thomas Jonathan Davies
1. Phylogenetic tools have increasingly been used in community ecology to describe evolutionary relationships among co-occurring species. In studies of succession, such tools may allow us to identify evolutionary lineages most suited for particular stages of succession and habitat rehabilitation. However, to date these two applications have been largely separate. Here, we suggest that information on phylogenetic community structure might help inform community restoration strategies following major disturbance. 2. Our study examined phylogenetic patterns of...

Data from: Sixty-year legacy of human impacts on a high Arctic ecosystem

Michael S. Becker & Wayne H. Pollard
The high Arctic is the world's fasting warming biome, allowing access to sections of previously inaccessible land for resource extraction. Starting in 2011, exploration of one of the Earth's largest undeveloped coal seams was initiated in a relatively pristine, polar desert environment in the Canadian high Arctic. Due to the relative lack of historic anthropogenic disturbance, significant gaps in knowledge exist on how the landscape will be impacted by development. At an abandoned airstrip located...

Data from: Hepcidin-25 in diabetic chronic kidney disease is predictive for mortality and progression to end stage renal disease

Martin Wagner, Peter U. Heuschmann & Ahsan Alam
Background: Anemia is common and is associated with impaired clinical outcomes in diabetic chronic kidney disease (CKD). It may be explained by reduced erythropoietin (EPO) synthesis, but recent data suggest that EPO-resistance and diminished iron availability due to inflammation contribute significantly. In this cohort study, we evaluated the impact of hepcidin-25—the key hormone of iron-metabolism—on clinical outcomes in diabetic patients with CKD along with endogenous EPO levels. Methods: 249 diabetic patients with CKD of any...

High-resolution global topographic index values

T.R. Marthews, S.J. Dadson, B. Lehner, S. Abele & N. Gedney
The topographic index is a hydrological quantity describing the propensity of the soil at landscape points to become saturated with water as a result of topographic position (i.e. not accounting for other factors such as climate that also affect soil moisture but are accounted for separately). Modern land surface models require a characterisation of the land surface hydrological regime and this parameter allows the use of the TOPMODEL hydrological model to achieve this .This Geographic...

Data from: Among-character rate variation distributions in phylogenetic analysis of discrete morphological characters

Luke B. Harrison & Hans C. E. Larsson
Likelihood-based methods are commonplace in phylogenetic systematics. Although much effort has been directed toward likelihood-based models for molecular data, comparatively less work has addressed models for discrete morphological character data. Among-character rate variation may confound phylogenetic analysis, but there have been few analyses of the magnitude and distribution of rate heterogeneity among discrete morphological characters. Using seventy-six data sets covering a range of plants, invertebrate, and vertebrate animals, we used a modified version of MrBayes...

Data from: Experimental adaptation to marine conditions by a freshwater alga

Josianne Lachapelle, Graham Bell & Nick Colegrave
The marine-freshwater boundary has been suggested as one of the most difficult to cross for organisms. Salt is a major ecological factor and provides an unequalled range of ecological opportunity because marine habitats are much more extensive than freshwater habitats, and because salt strongly affects the structure of microbial communities. We exposed experimental populations of the freshwater alga Chlamydomonas reinhardtii to steadily increasing concentrations of salt. About 98% of the lines went extinct. The ones...

Data from: Multi-purpose habitat networks for short-range and long-range connectivity: a new method combining graph and circuit connectivity

Bronwyn Rayfield, David Pelletier, Maria Dumitru, Jeffrey A. Cardille & Andrew Gonzalez
Biodiversity conservation in landscapes undergoing climate and land-use changes requires designing multipurpose habitat networks that connect the movements of organisms at multiple spatial scales. Short-range connectivity within habitat networks provides organisms access to spatially distributed resources, reduces local extinctions and increases recolonization of habitat fragments. Long-range connectivity across habitat networks facilitates annual migrations and climate-driven range shifts. We present a method for identifying a multipurpose network of forest patches that promotes both short- and long-range...

Data from: High-throughput screening for ligands of the HEPN domain of sacsin

Xinlu Li, Marie Ménade, Guennadi Kozlov, Zheping Hu, Zheng Dai, Peter S. McPherson, Bernard Brais & Kalle Gehring
Sacsin is a large protein implicated in the neurodevelopmental and neurodegenerative disease autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS), which features the loss of Purkinje neurons in the cerebellum. Although the domain architecture of sacsin suggests that it is a neuronal chaperone assisting in protein quality control, the precise function of sacsin remains elusive. Using fluorescence polarization (FP) assays, we confirmed that the HEPN domain of sacsin binds to nucleotides with low micromolar affinities. FP...

Data from: Conservation versus livelihoods: spatial management of non-timber forest product harvests in a two-dimensional model

Brian E. Robinson
Areas of high biodiversity often coincide with communities living in extreme poverty. As a livelihood support, these communities often harvest wild products from the environment. But harvest activities can have negative impacts on fragile and globally important ecosystems. This paper examines trade-offs in ecological protection and community welfare from the harvest of wild products. With a novel model and empirical evidence, I show that management of harvest activity does not always resolve these trade-offs. In...

Data from: Acceleration and novelty: community restoration speeds recovery and transforms species composition in Andean cloud forest

Sarah Jane Wilson & Jeanine M. Rhemtulla
Community-based tropical forest restoration projects, often promoted as a win-win solution for local communities and the environment, have increased dramatically in number in the past decade. Many such projects are underway in Andean cloud forests, which, given their extremely high biodiversity and history of extensive clearing, are understudied. This study investigates the efficacy of community-based tree-planting projects to accelerate cloud forest recovery, as compared to unassisted natural regeneration. This study takes place in northwest Andean...

Data from: Does plasticity enhance or dampen phenotypic parallelism? A test with three lake-stream stickleback pairs.

Krista B. Oke, Mehvish Bukhari, Renaud Kaeuffer, Gregor Rolshausen, Katja Räsänen, Daniel I. Bolnick, Catherine L. Peichel & Andrew P. Hendry
Parallel (and convergent) phenotypic variation is most often studied in the wild, where it is difficult to disentangle genetic versus environmentally-induced effects. As a result, the potential contributions of phenotypic plasticity to parallelism (and non-parallelism) are rarely evaluated in a formal sense. Phenotypic parallelism could be enhanced by plasticity that causes stronger parallelism across populations in the wild than would be expected from genetic differences alone. Phenotypic parallelism could be dampened if site-specific plasticity induced...

Registration Year

  • 2015
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Resource Types

  • Dataset
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Affiliations

  • McGill University
    40
  • Stanford University
    4
  • University of Copenhagen
    3
  • Concordia University
    3
  • University of Edinburgh
    2
  • University of Guelph
    2
  • French National Institute for Agricultural Research
    2
  • University of Oregon
    2
  • McMaster University
    2
  • French National Centre for Scientific Research
    2