Flashcards
TESSA
Flashcards do conjunto (14)
- 1What does TESSA stand forToolkit for Ecosystem Service Site-based Assessment
- 2What is the aim of TESSA?- A rapid assessment tool to understand how far conserving sites for their biodiversity also helps to conserve different ecosystem services.
- Provides accessible guidance on low-cost methods to evaluate the benefits people receive from nature at protected areas.
- Generates information used in decision-making
- Existing resources tend to be global, impractically costly (or both) so TESSA enables stakeholders to obtain accessible, robust and locally relevant ecosystem service information for themselves. - 3Outline the 8 steps of TESSA's methodological framework1. Scoping
2. Engaging with policy and decision-making
3. Preliminary Scoping Appraisal
4 Planning the full assessment
5. Determine the Alternative State
6. Methods selection
7. Collect data for current and alternative state
8. Analyse and communicate - 4Describe 'Scoping'Involves:
- Defining objectives
- Identifying stakeholders
- Engaging experts
- Learning about site and its beneficiaries
Purpose: to have a broad understanding of the most important habitats and ES at the site. Will inform how you conduct the assessment. - 5Describe 'Engaging with policy and decision-making'- Engaging stakeholders in identifying and assessing services and sharing information can often dispel existing tension between groups
- Essential for getting true reflection of the economic, ecological, social and cultural importance of the site
- Without it, results will not have the necessary relevance to influence those that matter
- Different stakeholders value different services, so TESSA helps users consider ALL services
- Active engagement of local people can foster enthusiasm for the assessment - 6Describe how engaging stakeholders has been beneficial in ES assessment- Community Forest User Groups in the Phulchoki mountain forests used their local knowledge of past, present and likely future pressures and demands on resources to mark up a map showing how they would expect land use and condition of different areas to change under the alternative state
- 7Describe 'alternative states'- Need to consider plausible alternative state: a description of how the future (10-20yrs) may develop based on the best available current information and a set of assumptions about key driving forces and relationships
- TESSA emphasises importance of this consideration, and if possible, collecting field data directly from a site that represents the alternative state. - 8Describe 'methods selection'- For some services, there are several approaches that could be followed to collect data: Existing databases and studies; primary data collection; key informant interviews or household questionnaires; numerical models
- The extent to which new data collection is needed will depend on the type of service and availability of existing data.
- Primary data collection desirable as provides ground-truthed site-specific data and important local contextual information. - 9Describe examples of how global climate regulating services have been measured- Fieldwork (primary data) involving measurements of tree diameter to estimate above-ground carbon stock
- In Phulchoki mountain forests, information from existing data sets for the same generalised forest types at a nearby park was used
- In Wicken Fen, field surveys conducted to quantify total organic matter in restored wetland parcels with no existing data. Existing data used for those previously studied. - 10Describe examples of how water services have been measured- Watershed and distance to the hydrological beneficiaries not suitable to collect short-term field data. Remote-sensing modelling used and compared to existing data. Alternative state ran model again, using expected land cover
- Wicken Fen - Information obtained on potential water storage capacity of restored wetland from a study. Benefit of flood protection service estimated by applying data from study on areas of fields that would be flooded. - 11Describe examples of how harvested wild goods have been measured- In Phulchoki mountain forests, stakeholder workshop used to reach consensus on the most important wild products for the community as no existing data. Information used to design a household questionnaire to determine value and quantity of products. Survey repeated for households using resources from alternative state.
- Where illegal harvesting of wild products occurs in a PA, TESSA advises users to consider whether it is safe, ethical and necessary to gather data on resource use. May be decided against if methods could disrupt relationships between park authorities and local communities - 12Describe examples of how nature-based recreation has been measured- Annual value of nature-based recreation in Centre Hills Reserve estimated by obtaining tourist records and conducting questionnaires on the motivations of international visitors to the reserve
- 13Describe "synthesis and communication"- The ability of users to present findings is vital to inform decision-making
- Format of presentations should be adjusted according to context
- The level of uncertainty for each of the findings should be explicit, indicating which results are more speculative and which are more well understood.
- Method of presentation will depend on factors such as target audience and the nature of the collected information. - 14What are the limitations of TESSA?- Based on economics
- Not a full cost and benefit analysis
- Monitoring not covered
- Issues about complexities (e.g. resilience, non-linearities, tipping points) too sufficiently understood to be incorporated in some cases
- Does not deal in detail with all ecosystem services, e.g. cultural services
- Mainly deals with threats on a shorter timescale so climate change not explicitly included
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- FlashCards sobre TESSA, criado por Bethany Ansell em 20-01-2019.
- Criado por
- Bethany Ansell
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