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Responses of tundra carbon cycling and storage to reindeer-induced vegetation shifts : Can reindeer alter how much carbon tundra ecosystems store?

In this presentation, I will summarize our findings on the effects of reindeer-induced vegetation transitions on carbon cycling processes and storage. These are monitored in subarctic Northern Norway alongside reindeer pasture rotation fences. At these sites, a yearly pulse of intensive reindeer grazing has turned the vegetation from shrub-dominated towards graminoid-dominated. We monitor the deve

Genomics of host-pathogen interactions : challenges and opportunities across ecological and spatiotemporal scales

Evolutionary genomics has recently entered a new era in the study of host-pathogen interactions. A variety of novel genomic techniques has transformed the identification, detection, and classification of both hosts and pathogens, allowing a greater resolution that helps decipher their underlying dynamics and provides novel insights into their environmental context. Nevertheless, many challenges to

Benefits for multiple ecosystem services in Peruvian coffee agroforestry systems without reducing yield

Crop production often comes at the expense of losses in ecosystem services and biodiversity; however, this might not always be the case. Here we test the effects of shade gradients and agricultural inputs on trade-offs or synergies between coffee yield and ecosystem services and biodiversity data for smallholder coffee plantations of Arabica coffee in Peru. We collected data using surveys (n = 162

Disentangling ‘ecosystem services’ and ‘nature’s contributions to people’

People depend on functioning ecosystems, which provide benefits that support human existence and wellbeing. The relationship between people and nature has been experienced and conceptualized in multiple ways. Recently, ecosystem services (ES) concepts have permeated science, government policies, multi-national environmental agreements, and science–policy interfaces. In 2017, the Intergovernmental

Contrasting effects of wooded and herbaceous semi-natural habitats on supporting wild bee diversity

The use of pesticides and the lack of resources caused by the simplification of landscapes are often cited as the main drivers of the loss of wild bees. Landscape complexity has been shown to interact with local pesticide use in studies of the effect of these factors on the abundance and diversity of insects. But, to date, few studies have simultaneously investigated local and landscape effects on

Ant13 Encodes Regulatory Factor WD40 Controlling Anthocyanin and Proanthocyanidin Synthesis in Barley (Hordeum vulgare L.)

Flavonoid compounds like anthocyanins and proanthocyanidins are important plant secondary metabolites having wide biological activities for humans. In this study, the molecular function of the Ant13 locus, which is one of the key loci governing flavonoid synthesis in barley, was determined. It was found that Ant13 encodes a WD40-type regulatory protein, which is required for transcriptional activa

Ticking the green box: Ethical consequences of planning urban ecosystem services in a ‘rational way’

Climate change and an increasing urbanisation create pressure on cities in terms of extreme weather events, deteriorated public health and wellbeing and a loss of biodiversity. Strengthening the provision of urban green and blue space (UGS) and ecosystem services (ES) is one way to reduce vulnerability and improve living conditions, and ’greening’ is often highlighted as an important path to creat

Contrasting response of organic carbon mineralisation to iron oxide addition under conditions of low and high microbial biomass in anoxic paddy soil

In contrast to what is observed in aerobic uplands, microbial biomass and the presence of electron acceptors, such as iron oxides, play a crucial role in regulating soil organic C (SOC) mineralisation in paddy soils. However, the related underlying mechanisms are still poorly explored. We conducted an anaerobic incubation study to investigate changes in CO2 emissions from SOC and acetate (13C-labe

Contrasting multi-taxa functional diversity patterns along vegetation structure gradients of woody pastures

Woody pastures represent keystone habitats for biodiversity in agricultural landscapes, contributing to increased resource availability, landscape heterogeneity and structural variability. High taxonomic diversity is closely linked to vegetation structure in woody pastures, but examining functional characteristics of species assemblages can shed more light on the ecological mechanisms driving dive

Remote sensing in urban planning: : Contributions towards ecologically sound policies?

Remote sensing has evolved to become a key tool for various fields of environmental analysis, thus actively informing policy across areas and domains. To evaluate the degree to which remote sensing is contributing to the science of ecologically-oriented urban planning, we carried out a systematic literature review using the SCOPUS database, searching for articles integrating knowledge in urban pla

Understanding cultural ecosystem services related to farmlands : Expert survey in Europe

Cultural ecosystem services (CES) are nonmaterial benefits that people obtain from ecosystems. The CES subcategories cover a wide range of domains (e.g. recreation, conservation of cultural heritage, human-nature relations). The CES concept has been proposed to acknowledge the nonmaterial values linking people and nature in social-ecological systems. Agricultural landscapes are outstanding example

An exploratory analysis of the impact of climate change on macedonian agriculture

Using a mixed input–output model, this study examines potential changes in sector output and water requirements in Macedonia arising from climate change. By defining three climate change scenarios and exogenously specifying the warming shocks for five key agricultural sub-sectors, the effects on the economy were quantified. The results indicated that except for cereals and grapes, agricultural pro

Climate change and the future heat stress challenges among smallholder farmers in East Africa

Agricultural production in sub-Saharan Africa remains dependent on high inputs of human labor, a situation associated with direct exposure to daylight heat during critical periods of the agricultural calendar. We ask the question: how is the Wet-Bulb Globe Temperature (WBGT) going to be distributed in the future, and how will this affect the ability of smallholder farmers to perform agricultural a

Stomping in silence : Conceptualizing trampling effects on soils in polar tundra

Ungulate trampling modifies soils and interlinked ecosystem functions across biomes. Until today, most research has focused on temperate ecosystems and mineral soils while trampling effects on cold and organic matter-rich tundra soils remain largely unknown. We aimed to develop a general model of trampling effects on soil structure, biota, microclimate and biogeochemical processes, with a particul

Importance of fungi in a 63 years old long-term field experiment with 20 years of maize growth

Microbial diversity and their activity in the rhizosphere and bulk soil areas were measured in a long-term field trial (started in 1956), where maize has been grown for the last 20 years with and without N fertilisation. Various microbial groups and their substrate feeding strategies (i.e. demonstrating activities) were identified through phospholipid fatty acids (PLFAs) analysis and their δ13C va

Historical isolation facilitates species radiation by sexual selection : Insights from Chorthippus grasshoppers

Theoretical and empirical studies have shown that species radiations are facilitated when a trait under divergent natural selection is also involved in sexual selection. It is yet unclear how quick and effective radiations are where assortative mating is unrelated to the ecological environment and primarily results from sexual selection. We address this question using sympatric grasshopper species

Butterfly species’ responses to urbanization : differing effects of human population density and built-up area

Good knowledge on how increasing urbanization affects biodiversity is essential in order to preserve biodiversity in urban green spaces. We examined how urban development affects species richness and total abundance of butterflies as well as the occurrence and abundance of individual species within the Helsinki metropolitan area in Northern Europe. Repeated butterfly counts in 167 separate 1-km-lo

Simplistic understandings of farmer motivations could undermine the environmental potential of the common agricultural policy

The European Union Common Agricultural Policy (CAP) has failed to achieve its aim of preserving European farmland biodiversity, despite massive investment in subsidies to incentivise environmentally-beneficial farming practices. This failure calls into question the design of the subsidy schemes, which are intended to either function as a safety net and make farming profitable or compensate farmers