Samuel Frank results 64
· Newest (Page 1/3, per page 25)
Author: Samuel Frank ×Clear All Filters
Search Results
Soil microbial communities underpin ecosystem functions critical for sustainable agriculture, yet our understanding of how long‐term management of tropical agroecosystems shapes these communities remains limited. This is particularly the case in sub‐Saharan Africa where soil health challenges are most acute for food security. Using four long‐term (~20 years) experiments across contrasting agroecological zones in Kenya, we stud...
Limited human mobility during the Neolithic period in the Meuse and Mons basin in Belgium: multi-element isotopic analysisNARA Subscribed
While the introduction of the Neolithic way of life in central Belgium around 5300 BCE is well-documented, the provenance and mobility patterns of Middle to Final Neolithic groups in southern Belgium (Wallonia) remain unclear. This work presents the first multi-element isotopic (strontium, 87 Sr/ 86 Sr; oxygen, δ 18 O; carbon, δ 13 C) data from prehistoric human dental enamel from the region. The study includes a total of 29 i...
Shifting Carbon Fractions in Forest Soils Offset 14 C‐Based Turnover Times Along a 1700 m Elevation GradientNARA Subscribed
Climate change impacts the soil carbon cycle, yet there is no scientific consensus on the vulnerability of soil organic carbon (SOC) stocks to global warming. Here, we studied soil organic matter (SOM) changes across 50 Swiss forest sites covering an elevation gradient from 270 to 2020 m, with dominant tree species changing from sub‐Mediterranean pubescent oak to mountain pine at treeline. We sought to assess how elevation, se...
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...
Navigating the Mining Industry Challenges: An Introduction to the CERA 4in1 StandardsNARA Subscribed
The mining industry faces significant challenges, including sustainability, environmental impact, and compliance with evolving regulatory frameworks. These challenges are compounded by the global demand for responsible sourcing and traceability across complex supply chains. The CERA 4in1 standard emerges as an innovative certification framework, addressing these issues by integrating Environmental, Social, and Governance (ESG)...
Continent‐Wide Drivers of Spatial Synchrony in Breeding Demographic Structure Across Wild Great Tit PopulationsNARA Subscribed
Variation in age structure influences population dynamics, yet we have limited understanding of the spatial scale at which its fluctuations are synchronised between populations. Using 32 great tit populations, spanning 4° W–33° E and 35°–65° N involving > 130,000 birds across 67 years, we quantify spatial synchrony in breeding demographic structure (subadult vs. adult breeders) and its drivers. We show that larger clutch sizes...
Measuring the Response Diversity of Ecological Communities Experiencing Multifarious Environmental ChangeNARA Subscribed
The diversity in organismal responses to environmental changes (i.e., response diversity) plays a crucial role in shaping community and ecosystem stability. However, existing measures of response diversity only consider a single environmental variable, whereas natural communities are commonly exposed to changes in multiple environmental variables simultaneously. Thus far, no approach exists to integrate multifarious environmen...
Confirmation of Skywalker Hoolock Gibbon (Hoolock tianxing) in Myanmar Extends Known Geographic Range of an Endangered PrimateNARA Subscribed
Characterizing genetically distinct populations of primates is important for protecting biodiversity and effectively allocating conservation resources. Skywalker gibbons ( Hoolock tianxing ) were first described in 2017, with the only confirmed population consisting of 150 individuals in Mt. Gaoligong, Yunnan Province, China. Based on river geography, the distribution of the skywalker gibbon has been hypothesized to extend int...
Importance of methodological pluralism in deriving counterfactuals for evidence‐based conservationNARA Subscribed
Most protected area impact research that uses counterfactuals draws heavily on quantitative methods, data, and knowledge types, making it valuable in producing generalizations but limited in temporal scope, historical detail, and habitat diversity and coverage of ecosystem services. We devised a methodological pluralistic approach, which supports social science qualitative methods, narratives, mixed methods, and interdisciplin...