Description
The applicative model here displayed is a schematic conceptual model that simplifies the most important socio-ecological elements related to the management of N2K sites and their connections. The idea behind the creation of this model was to connect the ecological/oceanographic observing systems of ECOAdS with the management of Natura 2000 network (N2k).
The conceptual model is made by different boxes containing the elements related to the management of N2K sites. There is no distinction in terms of size of the boxes, while the colour defines the kind of elements related to the N2K management: social, ecological and oceanographic elements. Social elements (yellow boxes) are characterized by all those elements concerning the governance domain of N2K management: EU Directives targeted by ECOSS (i.e. HD, BD, WFD, MSFD), the public/management authority of the N2K sites, the management goals, objectives, conservation measures/Action plan, the stakeholders involved in the N2K sites and human activities. The ecological elements (green boxes) are: target species and ecological processes for which N2K sites were designated, the ecosystem services, the ecological monitoring programmes and the ecological variables they measure. Oceanographic elements (blue boxes) include global changes, ocean processes, oceanographic observing system and the monitored oceanographic variables. Performance indicators constitute a crosscutting element (orange box), since they can be obtained from single ecological or single oceanographic variables, combinations of multiple ecological or multiple oceanographic variables, or even combinations of one or several ecological variables with one or several oceanographic variables. The monitoring programmes, the variables and the performance indicators are then all included in the ECOAdS box (red box).
The spatial arrangement of the boxes in the model follows a hierarchical organization: boxes at the top and at the bottom of the model refer to global aspects such as EU Directives, wide-scale monitoring programmes and ecosystem services, while in the centre of the model, the elements are related to local aspects of the N2K sites, such as goals, objectives, target species and ecological processes. Arrows indicate the relationships among the elements. They can go in one direction from one box to another or can be bi-directional in case elements are expected to influence each other. Dotted lines indicate data flow, while continuous lines indicate a causal relationship between two boxes based on the direction of the arrow. Terms upon arrows specify the type of relationship linking two boxes. While the conceptual model was built around the need to manage N2K sites, i.e. with the box ‘MPA Management Goal’ as an entry point, different users may use different entry points according to their needs: a stakeholder may start at the Stakeholder box, a public authority at the Public/Management authority box, and so on.
Human Interaction
- Po Delta Regional Park Authority of Veneto Region
- Policy-makers
- Fishermen Private companies
- Local organizations
- Research community
- General public
- EU DIRECTIVES
- Conservation of ecological processes at a favourable status in the Po Delta
- Regulate human activities
- Establish no-fishing zones
- Increase N2K site size
- Establish network of N2K sites
- Increase public awareness, enforcement, monitoring
- Remove invasive species
- Remove litter Improve water quality
- Restore target species & habitats
- Regulate water abstraction and use
- Reduce river engineering works and modification
- Prevent soil erosion
- Reduce hydrological alterations
- Minimize the effect of climate change
- Preserve primary productivity
- Preserve organism interactions and food web integrity
- Preserve natural habitat formation in delta system
- Preserve habitat connectivity and genetic diversity
- Preserve natural disturbance regimes
- Com&Rec.
- Fishing
- Construction of infrastructures
- Aquaculture
- Tourism
- River engineering works
- Sailing
- Agriculture
- Urbanization
Ecological processes, Habitat and Target Species
- Climate processes
- Hydrological processes
- Space/time variability in primary productivity
- Interactions between organisms
- Movements of organisms
- Formation of biophysical habitats
- Natural disturbance regimes
- Habitat maintenance
- Cultural heritage
- Food provisioning
- Tourism recreation
- Climate regulation
- Water flow regulation
- Erosion prevention
- Destructive and non-destructive samplings
- Field and lab. experiments
- Lab. Analyses
- Species population age, sex, abundance, cover, biomass, density, distribution, biometric measures, number of offspring, phenology related measures, number of deaths, survival/ birth/ death/ growth/ reproductive/ settlement/ recruitment rates, genetic information
- Number of immigrates and emigrates
- Species composition
- Diversity indices
- Dissimilarity between species
- Number of species per functional group
- Community structure
- Number/cover of affected organisms
- Frequency, duration, intensity and extent of disturbance
- Gross primary production and respiration rates
- Dry weight of algae
- Frequency, duration, spatial extent, biomass, species composition and abundance of phytoplankton
- Cover and composition of macrophytes
- Relative abundance of dominant macroalgae
- Composition, abundance and species richness of macrozoobenthos
- Rates of energy storage as biomass at different trophic levels
- Biomass and diets of species
- Rates of export from the system
- Intensities of flows between compartments
- Estimates of consumption, production, respiration, excretion
- Abundance/cover of invasive/opportunistic vs native species
- Surface area and type of habitat
- Vegetation cover and composition
- Number and type of barriers to migration
- Timing and duration of the estuarine phase
- Movement pathways
- Distance and timing of movements
- Shapes and sizes of home ranges
- Habitat selection along movement paths
- Plant biomass and longevity
Oceanographic Variables
- Water circulation
- River outflow
- Sedimentation
- Temperature and pH alteration
- Extreme events
- Water sampling
- Mobile and fixed monitoring systems
- Remote sensing modelling outputs (Copernicus, IPCC)
- Monthly temperature and amount of precipitations at different locations
- Monthly mean of water flow, magnitude and duration of annual extreme flows, timing of annual extreme flows, frequency and duration of high and low pulses, rate and frequency of flow changes
- Current velocity and direction
- Water level
- Type, complexity and variability of substrates and structural features
- Depth
- Number and magnitude of flood events
- Slope
- Extent of salt wedge
- Amount of evaporation
- Salinity
- Wind speed and direction
- Water flow rate
- PAR
- Dissolved oxygen
- Amount of water abstracted
- Transparency
- Sedimentation rate
- Nutrient/pollutant concentration
- pH
- Chlf-a
- River morphology
Performance Indicators (coming from ecological variables)
- Trends in water temperature, precipitation
- Variation in reproductive success and offspring survival
- Phenological shift of species
- Proportion of affected organisms
- Variation in indicators of hydrologic alteration of rivers
- Variation in sedimentation rate and levels of turbidity
- Trends in concentration of nutrients
- Distance upstream of the salt wedge
- Variation in net primary production
- Energy transfer efficiency
- Ecological network analysis indices
- Variation of population demography and distribution
- Variation in community structure
- Variation in surface area of typical habitats in delta system
- Variation in mortality rate
- Genetic diversity
- Migration rate
- Hydrodynamic connectivity
- Variation in species diversity