F. Markos results 36
· Newest (Page 1/2, per page 25)
Author: F. Markos ×Clear All Filters
Search Results
Natural Snow Accumulation Gradients Mediate Environmental and Plant Trait Responses to Earlier Snowmelt in Alpine TundraNARA Subscribed
Mountain ecosystems are experiencing rapid climate changes, with implications for biodiversity and ecosystem function. Changing snow dynamics, especially earlier melt, are influencing the timing and length of growing seasons, species phenology, and plant abundance. Because mountains are characterized by high topographical and microclimatic variation, effects of changing snow dynamics may depend on small‐scale variation in topo...
Leoligin derivatives as novel phosphodiesterase 4 inhibitorsNARA Subscribed
The Polyphagous shot hole borer (PSHB) ( Euwallacea fornicatus ) is attacking native and exotic street trees in Johannesburg’s urban forest causing a disease called Fusarium dieback (FD), and the date of introduction of PSHB is not known. The novelty of using Google street view (GSV) for pest monitoring in an urban setting includes easy identification and detection of invasive pests on trees, cost effectiveness and time effici...
Early snowmelt advances flowering phenology and disrupts the drivers of pollinator visitation in an alpine ecosystemNARA Subscribed
Climate change is altering interactions among plants and pollinators. In alpine ecosystems, where snowmelt timing is a key driver of phenology, earlier snowmelt may generate shifts in plant and pollinator phenology that vary across the landscape, potentially disrupting interactions. Here we ask how experimental advancement of snowmelt timing in a topographically heterogeneous alpine-subalpine landscape impacts flowering, insec...
Dissolved Organic Carbon (DOC) is the largest organic carbon pool in the ocean. Considering the biotic and abiotic factors controlling DOC processes, indirect satellite methods for open ocean DOC estimation can be developed, using conceptual, empirical or statistical models, driven by multiple satellite products. In this study, we infer a time series of global DOC from data of the European Space Agency’s (ESA) Ocean Colour Cli...
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...
Contribution to the ongoing discussion on fluoride toxicityNARA Subscribed
Since the addition of fluoride to drinking water in the 1940s, there have been frequent and sometimes heated discussions regarding its benefits and risks. In a recently published review, we addressed the question if current exposure levels in Europe represent a risk to human health. This review was discussed in an editorial asking why we did not calculate benchmark doses (BMD) of fluoride neurotoxicity for humans. Here, we add...
Recently, epidemiological studies have suggested that fluoride is a human developmental neurotoxicant that reduces measures of intelligence in children, placing it into the same category as toxic metals (lead, methylmercury, arsenic) and polychlorinated biphenyls. If true, this assessment would be highly relevant considering the widespread fluoridation of drinking water and the worldwide use of fluoride in oral hygiene product...
Accurate forest projections require long‐term wood decay experiments because plant trait effects change through timeNARA Subscribed
Whether global change will drive changing forests from net carbon (C) sinks to sources relates to how quickly deadwood decomposes. Because complete wood mineralization takes years, most experiments focus on how traits, environments and decomposer communities interact as wood decay begins. Few experiments last long enough to test whether drivers change with decay rates through time, with unknown consequences for scaling short‐t...
TRY plant trait database – enhanced coverage and open accessNARA Subscribed
Plant traits—the morphological, anatomical, physiological, biochemical and phenological characteristics of plants—determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodivers...
Simulating rewetting events in intermittent rivers and ephemeral streams: A global analysis of leached nutrients and organic matterNARA Subscribed
Climate change and human pressures are changing the global distribution and the extent of intermittent rivers and ephemeral streams (IRES), which comprise half of the global river network area. IRES are characterized by periods of flow cessation, during which channel substrates accumulate and undergo physico‐chemical changes (preconditioning), and periods of flow resumption, when these substrates are rewetted and release pulse...