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Effects of phosphorus in growth media on biomineralization and cell surface properties of marine cyanobacteria synechococcus

Through geological time, cyanobacterial picoplankton have impacted the global carbon cycle by sequestrating CO 2 and forming authigenic carbonate minerals. Various studies have emphasized the cyanobacterial cell envelopes as nucleation sites for calcium carbonate formation. Little is known, however, about how environmental conditions (e.g., nutrient content) trigger a cell surface and its proper

Global metawebs of spider predation highlight consequences of land-use change for terrestrial predator–prey networks

Land-Use Change and Terrestrial Predator–Prey Networks Land-use change, here defined as the conversion of one land-use type into another (e.g., forest to arable land), affects biodiversity and biotic interactions worldwide (Sala et al., 2000). Although there has been large regional variation in the extent of agricultural expansion and abandonment in Europe in the past 50 years (Rabbinge and van Di

Ectomycorrhizal community composition and function in a spruce forest transitioning between nitrogen and phosphorus limitation

Nitrogen is the main limiting nutrient in boreal ecosystems, but studies in southwest Sweden suggest that certain forests approach phosphorus (P) limitation driven by nitrogen (N) deposition. We added N, P or N + P to a Norway spruce forest in this region, to push the system to N or P limitation. Tree growth and needle nutrient concentrations indicated that the trees are P limited. EMF biomass was

Linking bacterial community composition to soil salinity along environmental gradients

Salinization is recognized as a threat to soil fertility worldwide. A challenge in understanding the effects of salinity on soil microbial communities is the fact that it can be difficult to disentangle the effects of salinity from those of other variables that may co-vary with salinity. Here we use a trait-based approach to identify direct effects of salinity on soil bacterial communities across

Flowering resources distract pollinators from crops : Model predictions from landscape simulations

Enhancing floral resources is a widely accepted strategy for supporting wild bees and promoting crop pollination. Planning effective enhancements can be informed with pollination service models, but these models should capture the behavioural and spatial dynamics of service-providing organisms. Model predictions, and hence management recommendations, are likely to be sensitive to these dynamics. W

Clothianidin seed-treatment has no detectable negative impact on honeybee colonies and their pathogens

Interactions between multiple stressors have been implicated in elevated honeybee colony losses. Here, we extend our landscape-scale study on the effects of placement at clothianidin seed-treated oilseed rape fields on honeybees with an additional year and new data on honeybee colony development, swarming, mortality, pathogens and immune gene expression. Clothianidin residues in pollen, nectar and

Inorganic and organic P retention by coprecipitation during ferrous iron oxidation

Phosphorous (P) cycling is often closely coupled to iron (Fe), particularly following mineral weathering or in hydromorphic soils where Fe redox reactions can control the equilibrium between P retention and release. While surface adsorption of P on Fe (hydr)oxides is a well-known and widely studied process, less attention has been devoted to the understanding of P (especially organic P) coprecipit

The interplay of landscape composition and configuration: new pathways to manage functional biodiversity and agroecosystem services across Europe

Managing agricultural landscapes to support biodiversity and ecosystem services is a key aim of a sustainable agriculture. However, how the spatial arrangement of crop fields and other habitats in landscapes impacts arthropods and their functions is poorly known. Synthesising data from 49 studies (1515 landscapes) across Europe, we examined effects of landscape composition (% habitats) and configu

Scale-dependent foraging tradeoff allows competitive coexistence

In spatially heterogeneous environments, coexistence between competing species can be facilitated by spatially mediated tradeoffs. In this paper we develop a mechanistic model to investigate under which circumstances interspecific differences in the tradeoff between foraging efficiency and travel costs can allow two central place foraging species to coexist in spite of considerable overlap in reso

Pervasive horizontal transmission of Wolbachia in natural populations of closely related and widespread tropical skipper butterflies

BACKGROUND: The endosymbiotic relationship between Wolbachia bacteria and insects has been of interest for many years due to their diverse types of host reproductive phenotypic manipulation and potential role in the host's evolutionary history and population dynamics. Even though infection rates are high in Lepidoptera and specifically in butterflies, and reproductive manipulation is present in th

Does the land-use impact the risk of inducing antibiotic tolerance by heavy metal pollution?

The rise of antibiotic-resistant soil microbial communities is a critical global issue. Evidence suggests that heavy metals can select or co-select for tolerance to metals and antibiotics in soil bacteria, but it is unclear if this tolerance varies with land use. We tested the potential of bacterial communities to develop resistance to copper (Cu) or tetracycline (Tet) after amending soils from pr

The nature of peace : trajectories of environmental peacebuilding between dominant narratives and power relations

Peacebuilding initiatives play an important role in the reconstruction of political, economic, and social conditions after internal armed conflicts. If these initiatives also account for environmental aspects, they have the potential to address both ecological damages and resource-related conflict causes. The sprawling literature on environmental peacebuilding therefore stresses the need for a hol

The Role Assigned to Artificial Intelligence in Global Sustainability Governance

There exists a knowledge gap in the literature on how international actors address artificial intelligence (AI) in international sustainability governance. By addressing this gap and bringing a critical perspective, this paper aims to enrich discussions on AI within international relations. First, this paper shows that the development and deployment of AI-based technologies are mainly seen as an o

How do root exudates prime the decomposition of soil organic matter following drought?

When dry soil is rewetted, contrasting microbial responses can be induced, ranging from a more resilient type of response with faster growth recovery to a more sensitive type of response with a slower growth recovery. These microbial responses will also affect soil carbon (C) cycling in the rhizosphere. However, whether the microbially-controlled priming of soil organic matter (SOM) mineralization

Global patterns and determinants of erosion-induced soil carbon translocation

Soil erosion is a critical process influencing the global carbon cycle. However, erosion-induced carbon changes remain inadequately understood, particularly for soil inorganic carbon (SIC). There is also limited knowledge about the factors influencing soil carbon dynamics during erosion processes. Here we quantify the global translocation of soil organic carbon (SOC) and SIC due to soil erosion us

Essential Concepts for Implementing the Sustainable Development Goals : An A-Z Guide

This book provides a highly accessible and user-friendly overview of the essential concepts and terms related to the current global endeavour to implement the Sustainable Development Goals.With the first decade of the 15-year timespan of the 2030 Agenda now past, the SDGs show limited progress and several goals are even regressing. It is imperative that SDG implementation is accelerated until 2030

Drought as a disturbance : Soil microbial resistance and resilience across environmental gradients

The ecosystem response to disturbances is a central topic in ecology, and there is growing awareness of the impacts of human-driven climate change on ecosystem stability to disturbances. Terrestrial ecosystems are increasingly exposed to more drought and rainfall events as climate change intensifies. In soils, bacteria and fungi play a key role in ecosystem functioning, yet their responses to drou