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Marine Rhodobacterales as Drivers of Ulva Growth: From Macroalgal–Bacterial Interactions to Bioactive Factor EnrichmentNARA Subscribed
Marine bacteria significantly influence the development and productivity of algal communities. The green seaweed Ulva ( Chlorophyta) relies on bacteria that secrete algal growth and morphogenesis-promoting factors (AGMPF). In a reductionist model system of Ulva compressa (cultivar U. mutabilis ), the diverse microbiome can be substituted by two key bacteria, Roseovarius sp. MS2 and Maribacter sp. MS6, both of which release AGM...
Growth and erosion of volcanic islands since 1963 analyzed by multi-sensor satellite data and historical recordsNARA Subscribed
Most volcanic activity is taking place in the oceans. Depending on water depth, eruption recurrence times and volumes, a new island can form. The power of erosional forces, the type of erupted material and the efficiency of secondary processes determine the island’s lifetime. Since the famous eruption of Surtsey (Iceland) in 1963, at least another 23 volcanic islands have appeared. Some islands remained intact for years or dec...
Local and Landscape‐Level Environmental Conditions Drive Habitat Selection Across Terrestrial Mammal SpeciesNARA Subscribed
Aim Animal movements are a fundamental process affecting communities and ecosystems. Quantifying habitat selection across species and habitats is key for understanding how animals respond to environmental change. Currently, we lack comparative studies that examine how habitat selection varies across species traits and landscapes. We aim to quantify global patterns of habitat selection to help understand the fundamental drivers...
Francesco Di Virgilio, one of the giants of purinergic signalling, died suddenly on September 22, 2024, which is an immense loss to so many friends and colleagues and especially to his beloved wife, Dorianna. Here, 1 year on, we pay tribute to him and his immense contribution to our field. Francesco graduated in medicine from the University of Padova, Italy, in 1979, with what became a lifelong interest in inflammation. He the...
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...
Sensing of the intestinal microbiota by the host immune system is important to induce protective immune responses. Hence, modification of the gut microbiota might be able to prevent or treat allergies, mediated by proinflammatory Th2 immune responses. The aim was to investigate the ex vivo immunomodulatory effects of the synbiotics Pollagen® and Kallergen®, containing the probiotic bacterial strains Lactobacillus , Lacticaseib...
Evaluating expert‐based habitat suitability information of terrestrial mammals with GPS‐ tracking dataNARA Subscribed
Aim Macroecological studies that require habitat suitability data for many species often derive this information from expert opinion. However, expert‐based information is inherently subjective and thus prone to errors. The increasing availability of GPS tracking data offers opportunities to evaluate and supplement expert‐based information with detailed empirical evidence. Here, we compared expert‐based habitat suitability info...
The role of the SLC6A3 3’ UTR VNTR in nicotine effects on cognitive, affective, and motor functionNARA Subscribed
Rationale Nicotine has been widely studied for its pro-dopaminergic effects. However, at the behavioural level, past investigations have yielded heterogeneous results concerning effects on cognitive, affective, and motor outcomes, possibly linked to individual differences at the level of genetics. A candidate polymorphism is the 40-base-pair variable number of tandem repeats polymorphism (rs28363170) in the SLC6A3 gene coding...
The responses of forest carbon dynamics to fluctuations in environmental conditions at a global scale remain elusive. Despite the understanding that favourable environmental conditions promote forest growth, these responses have been challenging to observe across different ecosystems and climate gradients. Based on a global annual time series of aboveground biomass (AGB) estimated from radar satellites between 1992 and 2018, w...
Using archaeological data and sediment parameters to review the formation of the Gravettian layers at Krems‐WachtbergNARA Subscribed
The Gravettian site Krems‐Wachtberg in northeast Austria produced a wealth of archaeological and sedimentary data. Precondition for a detailed study of the formation processes is co‐occurrence of find layers with in situ and redeposited material. We use archaeological data and sediment parameters to review and refine a formation model that was based solely on field observations. The archaeological perspective relies upon the r...
Ecosystem transpiration and evaporation: Insights from three water flux partitioning methods across FLUXNET sitesNARA Subscribed
We apply and compare three widely applicable methods for estimating ecosystem transpiration ( T ) from eddy covariance (EC) data across 251 FLUXNET sites globally. All three methods are based on the coupled water and carbon relationship, but they differ in assumptions and parameterizations. Intercomparison of the three daily T estimates shows high correlation among methods ( R between .89 and .94), but a spread in magnitudes o...
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...
Bromination of alkyl quinolones by Microbulbifer sp. HZ11, a marine Gammaproteobacterium, modulates their antibacterial activityNARA Subscribed
Summary Alkyl quinolones (AQs) are multifunctional bacterial secondary metabolites generally known for their antibacterial and algicidal properties. Certain representatives are also employed as signalling molecules of Burkholderia strains and Pseudomonas aeruginosa . The marine Gammaproteobacterium Microbulbifer sp. HZ11 harbours an AQ biosynthetic gene cluster with unusual topology but does not produce any AQ‐type metabolites...