Patrick Roman results 30
· Newest (Page 1/2, per page 25)
Author: Patrick Roman ×Clear All Filters
Search Results
Pathways for Ukraine’s post-war nature recovery: Focus on forest socio-ecological systemsNARA Subscribed
Natural ecosystems face significant pressure from climate change, biodiversity loss, and increasing socio-economic and political stressors—all of which are exacerbated by military conflict. This paper focuses on Ukraine and examines the root causes of disturbances in the country’s forest socio-ecological systems (SES), as well as the impacts of the ongoing war, to identify recovery pathways. Using a multi-method approach, we a...
Polychlorinated biphenyls (PCBs) are widespread environmental contaminants that interfere with xenobiotic metabolism, primarily by modulating cytochrome P450 (CYP) enzymes. However, their pharmacokinetic consequences in exposed individuals remain poorly defined. Here, we investigated the impact of PCB exposure on CYP enzyme activity using a combined clinical pharmacokinetic and in vitro mechanistic approach. Ten occupationally...
Global interest in microplastics is increasing, with numerous organisations collecting data on microplastics in the environment. However, disparate sampling, analysis, and reporting methods limit our ability to integrate data, hindering a global understanding of microplastic occurrence, effects and dynamics. Drawing on international directives and collaborations, we present a comprehensive guideline of harmonised and standardi...
Motivation Here, we make available a second version of the BioTIME database, which compiles records of abundance estimates for species in sample events of ecological assemblages through time. The updated version expands version 1.0 of the database by doubling the number of studies and includes substantial additional curation to the taxonomic accuracy of the records, as well as the metadata. Moreover, we now provide an R packag...
The effect of climate at origin on Douglas-fir growth, leaf traits and embolism resistance along a rainfall gradient in Central EuropeNARA Subscribed
Key message In Douglas-fir grown in Central Europe, growth and specific leaf area differed between coastal and interior provenances but little intra-specific variability was found for the Huber value and xylem safety. Abstract In Central Europe, the economically most important timber species for roundwood production, Norway spruce, has been severely affected by recent global change-type drought events. Due to its large spatial...
Metabolic activation of WHO-congeners PCB28, 52, and 101 by human CYP2A6: evidence from in vitro and in vivo experimentsNARA Subscribed
Despite extensive research on the metabolism of polychlorinated biphenyls (PCBs), knowledge gaps persist regarding their isoform-specific biotransformation pathways. This study aimed to elucidate the role of different cytochrome P450 enzymes in PCB metabolism, focusing on WHO-congeners 2,4,4′-trichlorobiphenyl (PCB28), 2,2′,5,5′-tetrachlorobiphenyl (PCB52), and 2,2′,4,5,5′-pentachlorobiphenyl (PCB101). Utilizing engineered HEK...
Microclimate, an important part of ecology and biogeographyNARA Subscribed
Brief introduction: What are microclimates and why are they important? Microclimate science has developed into a global discipline. Microclimate science is increasingly used to understand and mitigate climate and biodiversity shifts. Here, we provide an overview of the current status of microclimate ecology and biogeography in terrestrial ecosystems, and where this field is heading next. Microclimate investigations in ecology...
Pixel walking along the boreal forest–Arctic tundra ecotone: Large scale ground‐truthing of satellite‐derived greenness ( NDVI )NARA Subscribed
In this Technical Advance, we describe a novel method to improve ecological interpretation of remotely sensed vegetation greenness measurements that involved sampling 24,395 Landsat pixels (30 m) across 639 km of Alaska's central Brooks Range. The method goes well beyond the spatial scale of traditional plot‐based sampling and thereby more thoroughly relates ground‐based observations to satellite measurements. Our example data...
Global maps of soil temperatureNARA Subscribed
Research in global change ecology relies heavily on global climatic grids derived from estimates of air temperature in open areas at around 2 m above the ground. These climatic grids do not reflect conditions below vegetation canopies and near the ground surface, where critical ecosystem functions occur and most terrestrial species reside. Here, we provide global maps of soil temperature and bioclimatic variables at a 1‐km 2 r...
Maternal cannibalism in two populations of wild chimpanzeesNARA Subscribed
Maternal cannibalism has been reported in several animal taxa, prompting speculations that the behavior may be part of an evolved strategy. In chimpanzees, however, maternal cannibalism has been conspicuously absent, despite high levels of infant mortality and reports of non-maternal cannibalism. The typical response of chimpanzee mothers is to abandon their deceased infant, sometimes after prolonged periods of carrying and gr...