A5059106766- Wildlife Ecology and Conservation
- Amphibian and Reptile Biology
- Ecology and Vegetation Dynamics Studies
- Conservation, Biodiversity, and Resource Management
- Species Distribution and Climate Change
- Land Use and Ecosystem Services
- Plant and animal studies
- African Botany and Ecology Studies
- Animal Vocal Communication and Behavior
- Animal Behavior and Reproduction
- Marine animal studies overview
- Spider Taxonomy and Behavior Studies
- Rangeland and Wildlife Management
- Genomics and Phylogenetic Studies
- Cocoa and Sweet Potato Agronomy
- Digital Imaging for Blood Diseases
- Forest Ecology and Biodiversity Studies
- Agricultural Innovations and Practices
- Data Visualization and Analytics
- Wildlife-Road Interactions and Conservation
University of Antananarivo
2020-2023
University of Göttingen
2020-2022
New technologies like ecoacoustic surveys promise time and cost efficiency for biodiversity assessments, serve as a basis effective conservation policies, are particularly appealing remote highly diverse tropical areas. Acoustic indices facilitate the analysis of large acoustic datasets but no consensus on their performance has been reached yet. We evaluated efficacy four (Acoustic Complexity Index, Diversity Evenness Entropy) sound data assessments inside national park agricultural mosaic...
Abstract Resolving ecological-economic trade-offs between biodiversity and yields is a key challenge when addressing the crisis in tropical agricultural landscapes. Here, we focused on relation seven different taxa (trees, herbaceous plants, birds, amphibians, reptiles, butterflies, ants) vanilla agroforests Madagascar. Agroforests established forests supported overall 23% fewer species 47% endemic than old-growth forests, 14% forest fragments. In contrast, fallows had 12% more 38% fallows....
Significance Finding entry points where policy has strong leverage to transform land systems for people and nature is pivotal. We develop an innovative framework identify evaluate such along land-use trajectories that account path dependency. Applied the biodiversity hotspot Madagascar, reveals three points: Two are associated with trade-offs between biodiversity, ecosystem services, agricultural productivity, while third entails cobenefits. Swift action required, as dependency caused by...
Abstract Large expanses of tropical rainforest have been converted into agricultural landscapes cultivated by smallholder farmers. This is also the case in north‐eastern Madagascar; a region that retains significant proportions forest cover despite slash‐and‐burn shifting hill rice cultivation and vanilla agroforestry expansion. The global hotspot for herpetofauna diversity, but how amphibians reptiles are affected land‐use change remains largely unknown. Using space‐for‐time study design,...
Transformation of forests into agricultural lands threatens biodiversity and ecosystem functions globally. In the hotspot Madagascar, key along with highly endemic flora fauna are under threat. Comprehensive studies identifying determinants function losses lacking, no accounting for species richness across multiple taxa. We assess how plot-scale stand structural attributes (basal area, leaf area index, diameter diversity, tree richness) landscape-scale forest cover influence (species...
Malagasy frogs of the subgenus Brygoomantis in mantellid frog genus Mantidactylus currently comprise 14 described species mostly brown, riparian frogs. Data from DNA barcoding suggested that diversity this is dramatically underestimated by current taxonomy. We here provide a comprehensive revision subgenus. use hybrid-enrichment based barcode fishing to obtain mitochondrial fragments name-bearing type material 16 20 available names for members subgenus, and integrate these into genetic...
Many social-ecological systems are in an unsustainable state. Bringing together disjunct published findings on complex interactions may enable the identification of leverage points for transformations towards sustainability. However, such interdisciplinary synthesis studies specific regional remain rare. Here, we pair a review systematically identified with cross-impact analysis to create interactive visual conflicts and synergies between land use, biodiversity conservation, human wellbeing...
Abstract Large expanses of tropical rainforest have been converted into agricultural landscapes cultivated by smallholder farmers. This is also the case in north-eastern Madagascar; a region that retains significant proportions forest cover despite slash-and-burn hill rice cultivation and vanilla agroforestry expansion. The global hotspot for herpetofauna diversity, but how amphibians reptiles are affected land-use change remains largely unknown. Using space-for-time study design, we...
Predation can take unexpected turns. For instance, various invertebrate species-most commonly spiders-may prey on vertebrates. Here, we report one observation of a spider (Sparassidae,
Abstract Transformation of forests into agricultural lands threatens biodiversity and ecosystem functions globally. In the hotspot Madagascar, key along with highly endemic flora fauna are under threat. Comprehensive studies identifying proximate drivers lacking, no accounting for species richness across multiple taxa. We assess how plot-scale stand structural attributes (basal area, leaf area index, diameter diversity, tree richness) landscape-scale forest cover affect (species butterflies,...
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Predation can take unexpected turns. For instance, various invertebrate species - most commonly spiders may prey on tetrapods. Here, we report observations of (Sparassidae, Olios sp.) preying amphibians (Hyperoliidae, Heterixalus andrakata) in north-eastern Madagascar. To do so, the built highly-specialized traps by weaving two leaves together. Four cases different individuals same show that hide at rear end trap. One case reports feeding a small frog caught inside Previous amphibian...