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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...
Biodiversity in changing environments: An external‐driver internal‐topology framework to guide interventionNARA Subscribed
Accompanying the climate crisis is the more enigmatic biodiversity crisis. Rapid reorganization of biodiversity due to global environmental change has defied prediction and tested the basic tenets of conservation and restoration. Conceptual and practical innovation is needed to support decision making in the face of these unprecedented shifts. Critical questions include: How can we generalize biodiversity change at the communi...
Accounting for herbaceous communities in process‐based models will advance our understanding of “grassy” ecosystemsNARA Subscribed
Grassland and other herbaceous communities cover significant portions of Earth's terrestrial surface and provide many critical services, such as carbon sequestration, wildlife habitat, and food production. Forecasts of global change impacts on these services will require predictive tools, such as process‐based dynamic vegetation models. Yet, model representation of herbaceous communities and ecosystems lags substantially behin...
Comprehensive analysis of epigenetic clocks reveals associations between disproportionate biological ageing and hippocampal volumeNARA Subscribed
The concept of age acceleration, the difference between biological age and chronological age, is of growing interest, particularly with respect to age-related disorders, such as Alzheimer’s Disease (AD). Whilst studies have reported associations with AD risk and related phenotypes, there remains a lack of consensus on these associations. Here we aimed to comprehensively investigate the relationship between five recognised meas...
Arbuscular mycorrhizal ( AM ) fungi are widespread root symbionts that often improve the fitness of their plant hosts. We tested whether local adaptation in mycorrhizal symbioses would shape the community structure of these root symbionts in a way that maximizes their symbiotic functioning. We grew a native prairie grass ( A ndropogon gerardii) with all possible combinations of soils and AM fungal inocula from three different...
A meta‐analysis of context‐dependency in plant response to inoculation with mycorrhizal fungiNARA Subscribed
Ecology Letters (2010) 13: 394–407 Abstract Mycorrhizal fungi influence plant growth, local biodiversity and ecosystem function. Effects of the symbiosis on plants span the continuum from mutualism to parasitism. We sought to understand this variation in symbiotic function using meta‐analysis with information theory‐based model selection to assess the relative importance of factors in five categories: (1) identity of the host...
Linking above‐ and belowground responses to global change at community and ecosystem scalesNARA Subscribed
Cryptic belowground organisms are difficult to observe and their responses to global changes are not well understood. Nevertheless, there is reason to believe that interactions among above‐ and belowground communities may mediate ecosystem responses to global change. We used grassland mesocosms to manipulate the abundance of one important group of soil organisms, arbuscular mycorrhizal (AM) fungi, and to study community and ec...
Species of plants and associated arbuscular mycorrhizal fungi mediate mycorrhizal responses to CO 2 enrichmentNARA Subscribed
It has been suggested that enrichment of atmospheric CO 2 should alter mycorrhizal function by simultaneously increasing nutrient‐uptake benefits and decreasing net C costs for host plants. However, this hypothesis has not been sufficiently tested. We conducted three experiments to examine the impacts of CO 2 enrichment on the function of different combinations of plants and arbuscular mycorrhizal (AM) fungi grown under high a...
Detritus, trophic dynamics and biodiversityNARA Subscribed
Traditional approaches to the study of food webs emphasize the transfer of local primary productivity in the form of living plant organic matter across trophic levels. However, dead organic matter, or detritus, a common feature of most ecosystems plays a frequently overlooked role as a dynamic heterogeneous resource and habitat for many species. We develop an integrative framework for understanding the impact of detritus that...
Interactions among mycorrhizae, atmospheric CO 2 and soil N impact plant community compositionNARA Subscribed
We examined plant community responses to interactions between arbuscular mycorrhizal (AM) fungi and availability of atmospheric CO 2 and soil N. Communities of 14 plant species were grown in mesocosms containing living or killed AM fungal inoculum, ambient or elevated atmospheric CO 2 and low or enriched soil N. After one growing season, significantly different plant communities existed in the different treatments. Plant speci...
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