The project will assess the state of selected elements of natural resources of BbPN using modern remote sensing technologies: 1. Quantitative and qualitative detection of protective treatments carried out within the limits of the BbPN, including detection of activities incompatible with the conservation objectives of the Park. 2. Determine the degree of soil moisture in the habitat-critical vegetation phases, as a cardinal parameter for maintaining their good condition and determining the possibility of carrying out protective measures. 3. Analysis of the impact of conservation treatments on natural habitats by: a. Determination of dynamics of expansion of reeds (Phragmites australis), b. determination of the dynamics of the succession of stubbles and tree growth, c. preserving the structure of clumpy sedges. 4. Inventory of the range of invasive species: rolled-up derny (Cornus sericea) and flapped pen (Echinocystis lobata). 5. Determination of the range and dynamics of spring, summer and autumn floods. 6. Detection of local submersibles in the Biebrza valley and analysis of their causes. 7. Counting the population of herons white and gray. 8. Detection and inventory of areas burnt by fire.