Tootfinder

"Young Rwandans support bird conservation through mobile app recordings"
#Rwanda #Animals #Birds

Young Rwandans support bird conservation through mobile app recordings
A young tour guide and his group of student mentees are helping monitor bird species in Rwanda with the help of a mobile app, Mongabay contributor Mariam Kone reported. Joseph Desiré Dufitumukiza, who enjoys bird-watching, felt moved to take action after he read about the decline of native bird species in Rwanda, including the Maccoa […]

Direct approach to approximate conservation laws
M. Gorgone, G. Inferrera
https://arxiv.org/abs/2505.23390 https://arxiv.org/pdf/2505…

Direct approach to approximate conservation laws
In this paper, non-variational systems of differential equations containing small terms are considered, and a consistent approach for deriving approximate conservation laws through the introduction of approximate Lagrange multipliers is developed. The proposed formulation of the approximate direct method starts by assuming the Lagrange multipliers to be dependent on the small parameter; then, by expanding the dependent variables in power series of the small parameter, we consider the consistent…

"Bangladesh protects sacred forests to strengthen biodiversity conservation"
#Bangladesh #Trees #Biodiversity

Bangladesh protects sacred forests to strengthen biodiversity conservation
With an aim to protect biodiversity that’s become fragmented and is scattered across the country, Bangladesh is listing all the old, sacred and socially important trees and forests. The Forest Department has been collecting information from the locals in various parts of the country about locations and details of sites that are centuries-old and sacred […]

This https://arxiv.org/abs/2502.15003 has been replaced.
initial toot: https://mastoxiv.page/@a…

Field Dislocation Mechanics, Conservation of Burgers vector, and the augmented Peierls model of dislocation dynamics
Dissipative models for the quasi-static and dynamic response due to slip in an elastic body containing a single slip plane of vanishing thickness are developed. Discrete dislocations with continuously distributed cores can glide on this plane, and the models are developed as special cases of a fully three-dimensional theory of plasticity induced by dislocation motion. The reduced models are compared and contrasted with the augmented Peierls model of dislocation dynamics. A primary distinguishin…

This https://arxiv.org/abs/2505.20956 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csSD_…

Hybrid Disagreement-Diversity Active Learning for Bioacoustic Sound Event Detection
Bioacoustic sound event detection (BioSED) is crucial for biodiversity conservation but faces practical challenges during model development and training: limited amounts of annotated data, sparse events, species diversity, and class imbalance. To address these challenges efficiently with a limited labeling budget, we apply the mismatch-first farthest-traversal (MFFT), an active learning method integrating committee voting disagreement and diversity analysis. We also refine an existing BioSED da…

Portugal incluído. Nice.
https://flipboard.com/@euronews/green-news-8pjijreoz/-/a-mxqHnas_TPiVM9JgFxN9Ug:a:89340020-/0

EU and six member states take ‘historic step’ by ratifying UN treaty to protect the high seas
The High Seas Treaty has the potential to bring about a significant shift in global ocean conservation efforts. The European Union and six of its …

Monolithic framework to simulate fluid-structure interaction problems using geometric volume-of-fluid method
Soham Prajapati (Department of Aerospace Engineering and Mechanics, University of Minnesota - Twin Cities, Minneapolis, Minnesota, USA), Ali Fakhreddine (Department of Aerospace Engineering and Mechanics, University of Minnesota - Twin Cities, Minneapolis, Minnesota, USA), Krishnan Mahesh (Department of Aerospace Engineering and Mechanics, University of Minnesota - Twin Cities, …

Monolithic framework to simulate fluid-structure interaction problems using geometric volume-of-fluid method
We develop a three-dimensional Eulerian framework to simulate fluid-structure interaction (FSI) problems on a fixed Cartesian grid using the geometric volume-of-fluid (VOF) method. The coupled problem involves incompressible flow and viscous hyperelastic solids. A VOF-based one-continuum formulation is used to describe the unified momentum conservation equations with incompressibility constraints that are solved using the finite volume method (FVM). In the geometric VOF interface-capturing (IC)…

This https://arxiv.org/abs/2501.05738 has been replaced.
initial toot: https://mastoxiv.page/@…

Bogolon-mediated electromagnetic wave absorption in multicomponent Bose-Einstein condensates
We investigate the electromagnetic wave absorption process in a coherently coupled two-component Bose-Einstein condensate model in different dimensionality at zero temperature. As the analogue of phonon in the solid state physics, the elementary excitation of the Bose-Einstein condensate is described by Bogoliubov quasiparticle or bogolon for short. Due to the small magnitude of the sound velocity of the bogolon, the absorption process is prohibited by the conservation of energy and momentum. T…

This https://arxiv.org/abs/2405.11674 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Godunov Loss Functions for Modelling of Hyperbolic Conservation Laws
Machine learning techniques are being used as an alternative to traditional numerical discretization methods for solving hyperbolic partial differential equations (PDEs) relevant to fluid flow. Whilst numerical methods are higher fidelity, they are computationally expensive. Machine learning methods on the other hand are lower fidelity but can provide significant speed-ups. The emergence of physics-informed neural networks (PINNs) in fluid dynamics has allowed scientists to directly use PDEs fo…

The Conservation Biology Institute is looking for volunteers with GIS and spatial data experience to help secure and preserve federally funded environmental datasets on their Data Basin platform
https://mailchi.mp/1757b2a216df/data-basin-quarterly-update?e…

"The Dust Bowl led to the creation of what is now called the Natural Resources Conservation Service. Just as it celebrates a major milestone, the agency is dealing with job losses, massive proposed budget cuts and talk of consolidation." #NRCS (h/t Tom Gill)

#NewPaper out: Anne Reichmuth , Kühn I, Schmidt A, Doktor D (2025) Forested Natura 2000 sites under climate change: effects of tree species distribution shifts. Web Ecology 25: 59–89.
We have modelled and analysed the effect of possible tree species distribution shift in Norway spruce (Picea abies), European beech (Fagus sylvatica), and two oak species (Quercus petraea and Quercus robur), considered jointly on forested Natura 2000 sites, an EU-wide conservation area network. The modelling procedure was performed using 3 to 4 bio-climatic variables derived from 26 variables of the EURO-CORDEX Coupled Model Intercomparison Project Phase 5 (CMIP5) climate simulations for the Representative Concentration Pathways (RCPs) 2.6, 4.5, and 8.5 until 2098. Our results reveal a severe decline in Picea within Natura 2000 sites in central Europe and lower elevations and confirm a strong shift towards higher elevations and latitudes. This amounts to an 18 % absolute mean change (−18 % mean loss, 15 % mean gain). Quercus sp. reveal similar results, with 23 % absolute mean change (−23 % loss, 24 % gain) at Natura 2000 sites, whereas Fagus remains stable throughout the model results with 8 % absolute mean change (−7 % loss, 9 % gain). As ecosystems of any type are highly dynamic, climate change can lead to additional severe pressure on statically defined conservation goals and associated management activities.
#biodiversity #ecology #ClimateChange #conservation