A5057593897- Species Distribution and Climate Change
- Freshwater macroinvertebrate diversity and ecology
- Fish Ecology and Management Studies
- Aquatic Invertebrate Ecology and Behavior
- Urban Transport and Accessibility
- Soil erosion and sediment transport
- Cryospheric studies and observations
- Data-Driven Disease Surveillance
- Global Maternal and Child Health
- Climate change and permafrost
- Hydrology and Watershed Management Studies
- Hydrology and Sediment Transport Processes
- Landslides and related hazards
- Soil and Water Nutrient Dynamics
- Mercury impact and mitigation studies
- Arctic and Antarctic ice dynamics
- Ecology and Vegetation Dynamics Studies
- Human Mobility and Location-Based Analysis
- Healthcare Systems and Reforms
- Data Analysis with R
- Land Use and Ecosystem Services
- Data Stream Mining Techniques
- Isotope Analysis in Ecology
- Global Health Care Issues
University of Geneva
2019-2024
Kenya Medical Research Institute
2022
Abstract Background Access to healthcare is imperative health equity and well-being. Geographic access can be modeled using spatial datasets on local context, together with the distribution of existing facilities populations. Several population are currently available, but their impact accessibility analyses unknown. In this study, we model geographic public at 100-meter resolution in sub-Saharan Africa evaluate six most popular gridded for coverage statistics different administrative...
Snow cover extent and distribution over the years have a significant impact on hydrological, terrestrial, climatologic processes. mapping accuracy using remote sensing data is then particularly important. This study analyses Landsat-8 NDSI snow datasets time space different NDSI-based approach. The objectives are (i) to investigate relation snow-NDSI with environmental variables, (ii) evaluate of common threshold 0.4 against in-situ depth measurement (iii) develop method that optimises...
Despite the large availability of satellite and in-situ data on snow cover in Northern Hemisphere, long-term assessments at an adequate resolution to capture complexities mountainous terrains remain limited, particularly for countries like Switzerland. This study addresses this gap by employing two products—the monthly NDSI (Normalized Difference Snow Index) products—derived from Observation Space (SOfS) algorithm monitor dynamics across Switzerland over past 37 years. The pixel-wise...
Mountainous running water ecosystems are vulnerable to climate change with major changes coming from warming temperatures. Species distribution will be affected and some species anticipated winners (increasing their range) or losers (at risk of extinction). Climate vulnerability is seldom integrated when assessing threat status for lists at (Red Lists), even though this might appear an important addition in the current context. The main objective our study was assess potential Ephemeroptera...
Abstract Freshwater biodiversity loss is a major concern, and global warming already playing significant role in species extinctions. Our main goal was to predict climate change impacts on aquatic insect distribution richness Swiss running waters according two scenarios (RCP2.6 RCP8.5), using different modeling approaches, that is, models (SDMs), stacked‐SDMs (S‐SDMs) macroecological model (MEM). We analyzed 10,808 reaches, used as spatial units for predictions, total river network length of...
Biotic homogenization represents a major concern in ecology but relatively few studies have assessed climate change impacts on assemblage patterns of freshwater species. Our main goals were to predict the current and future (years 2035, 2060 2085) mayfly, stonefly caddisfly (EPT) diversity across Switzerland from macroscale environmental variables, assess impact warming temperatures β‐diversity. The study area was entire Swiss territory divided into 21 818 subcatchments (median 1.41 km 2 ),...
inAccessMod is an R package that simplifies the process of downloading and preparing geospatial layers required for AccessMod, official software from World Health Organization (WHO) used to model physical accessibility healthcare.The makes it easy prepare all necessary inputs by automating tasks such as data downloading, cropping, masking, projection, resampling with easy-to-use functions.inAccessMod includes additional functions help users modify perform complex analyses like merging...
Introduction Using health facility types as a measure of service availability is common approach in international standards for system policy and planning. However, this proxy may not accurately reflect the actual specific services. Objective This study aims to evaluate reliability typology an indicator explore whether certain consistently provide particular Design We analysed comprehensive dataset containing information from 1725 facilities Mali. To uncover visualise patterns within...
The high biotic diversity supported by floodplains is ruled the interplay of geomorphic and hydrological processes at various time scales, from daily fluctuations to decennial successions. Because understanding such a key question in river restoration, we attempted model changes taxonomic richness an assemblage 58 macroinvertebrate taxa (21 gastropoda 37 ephemeroptera, plecoptera trichoptera, EPT) along two successional sequences typical for former braided channels. Individual models...
Abstract Large river floodplains are dynamic environments, where alternating low and high flows key ecological processes shaping aquatic biota. As a result of fluctuations in flow floodplain channels, the diversity benthic assemblages is assumed to from balance between surface connections, which dominant during flows, groundwater inputs, flows. However, relative importance these inputs explaining invertebrate has never been tested. The response invertebrates hydrological changes was...
-Diversity, commonly defined as the compositional variation among localities that links local diversity (
We present a novel meta-community approach to explore the influence of species traits, such as adult body size, larval feeding type and microhabitat, well macrohabitat (main river channel vs. floodplain water bodies) on concentration total Hg accumulated ([THg]) in assemblages caddisflies. analyzed [THg] 157 light-trapped caddisflies sector French upper Rhône River used linear mixed effect model decipher role traits habitats accumulation. Variation between was best explained by type, whereas...
Abstract Access to health care is imperative equity and well-being. Geographic access can be modelled by combining different spatial datasets, among others, on the distribution of existing facilities populations. Several population datasets are currently available, but their impact accessibility analyses unknown. In this study, we model geographic public at 100-meter resolution in sub-Saharan Africa explore effect six most popular gridded coverage statistics administrative levels. We found...