M. Wilkinson results 233
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Precision measurement of the Ds*+-Ds+ meson mass differenceNARA Subscribed
Experiments on entire ecosystems have contributed knowledge on effects of atmospheric CO 2 and climate change, environmental pollutants, trophic cascades, response of fisheries to management, consumer interactions, ecosystem resilience and stability, and early warning indicators of critical transitions in ecosystem state. Rate of change in external drivers of an ecosystem such as climate warming, inflow of water or nutrients,...
Long-Term Stability of Macrophyte Dominance Triggered by Common Carp Removal from a Temperate Shallow LakeNARA Subscribed
Many ecosystems can abruptly shift between states, and shallow lakes are a classic example. Biomanipulation via the removal of benthivores can shift a shallow lake from a turbid to a clear-water macrophyte-dominated state, but the limited number of long-term studies indicates that persistence in this state rarely lasts beyond 5–10 years. We analyzed 12 years of pre-removal (1996–2007) and 17 years of post-removal (2008–2024) d...
Food web complexity alters phytoplankton persistence and resilience to nutrient pulses in experimental ecosystemsNARA Subscribed
In aquatic ecosystems, greater food web complexity is theorized to increase persistence and resilience of primary production to pulse disturbances, yet experimental evidence is limited. We simulated two storm‐induced pulse disturbances by adding nutrients (~ 3%–5% increase in ambient concentrations) to three ponds with low, intermediate, and high food web complexity and compared to reference ponds. We evaluated the ecological...
Climatic Niche Shift by Non‐Native Sciurus carolinensisNARA Subscribed
Aim To test the hypothesis of bioclimatic niche conservation in an alien species. Location Northern Hemisphere temperate and boreal zones. Taxon Tree squirrels of the genera Sciurus and Tamiasciurus , especially S. carolinensis (Eastern Grey Squirrel). Methods Climatic response surface species distribution models (SDMs) are fitted using a limited set of biologically‐relevant bioclimatic variables. Two models are fitted for Sci...
Particles are a key component of aquatic light climate due to their attenuation of light. Near the water surface, waves and sheared currents can induce a preferential orientation of nonspherical particles that alters their inherent optical properties and the associated light attenuation. This modeling study focuses on how particle shape, and the corresponding preferential orientation, impacts the light climate in an aquatic en...
Ecological and Mutation‐Order Speciation in SenecioNARA Subscribed
Natural selection shapes how new species arise, yet the mechanisms that generate reproductive barriers remain actively debated. Although ecological divergence in contrasting environments and mutation‐order processes in similar environments are often viewed as distinct speciation mechanisms, we show they can occur simultaneously and act as part of a continuum of selective pressures. In the Senecio lautus species complex, Dune a...
DNA Methylation Dynamics Reflect Sex and Status Differences in Mortality Rates in a Polygynous BatNARA Subscribed
Males of polygynous mammals often do not live as long as females and, in some cases, exhibit evidence of earlier senescence. Patterns of DNA methylation (DNAm) have recently been used to predict chronological age in mammals. Whether DNAm also changes as a consequence of survival and senescence is largely untested in wild animals. In this study, we estimate mortality rates using recaptures of 2700 greater spear‐nosed bats, Phyl...
Post-stroke dysphagia (PSD) is common and associated with poor outcomes. We aimed to explore the feasibility, safety, and proof of concept of cerebellar rTMS in patients with sub-acute PSD. We intended to recruit 48 participants with PSD. Randomised to: (i) sham treatment twice-daily for five days, (ii) cerebellar rTMS daily for three days, and (iii) cerebellar rTMS twice-daily for five days (1:1:1). Participants were blinded...
Phenology Across Scales: An Intercontinental Analysis of Leaf‐Out Dates in Temperate Deciduous Tree CommunitiesNARA Subscribed
Aim To quantify the intra‐community variability of leaf‐out (ICVLo) among dominant trees in temperate deciduous forests, assess its links with specific and phylogenetic diversity, identify its environmental drivers and deduce its ecological consequences with regard to radiation received and exposure to late frost. Location Eastern North America (ENA) and Europe (EUR). Time Period 2009–2022. Major Taxa Studied Temperate deciduo...