Biodiversity indicators
| N. | Question | Answers | Timestamped Validation |
|---|---|---|---|
| 1 | Is there an index that measures the state of the art of living beings on earth? | There is no single measure that can capture all of the changes, however there are multiple indicators.giving us different information about how biodiversity is responding to human pressures, as well as conservation interventions.
Indicators of the extent and structural condition of ecosystems, of the composition of ecological communities, and of species populations.[[1]] |
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| 2 | What is the Red List Index? | The IUCN Red List represents the most comprehensive and
objective system for assessing the relative risk of extinction of species. [[2]] |
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| 3 | How does the RLI classifcation works? | The Red List Index considers nformation on life-history traits, population and distribution size and structure, and their change over time to assign each species into one of eight categories (Extinct, Extinct in the Wild, Critically Endangered, Endangered, Vulnerable, Near Threatened, Least Concern or Data Deficient).[[3]] | |
| 4 | What does th eLPI indicates? | The LPI measures the population abundance of thousands of vertebrate species around the world.[[4]] | |
| 5 | How many times have species indexed by the RLI been assessed? | Five groups of RLI have all species been assessed at least twice, the others only one.[[5]] | |
| 6 | What does the RLI show as far as 2020? | 2020 RLI Data shows that cycads (an ancient group of plants) are most threatened, while corals are declining fastest.[[6]] | |
| 7 | Why tracking living communities composition can be important? | Biological communities can change fundamentally as a result of human pressures compared to what they would have been in pristine conditions, even without any species going locally extinct. Tracking community composition – the species that are present and their local abundances – can give an indication of both the intactness and functioning of ecosystems.[[7]] | |
| 8 | What do MSA and BII stand for? | The Mean Species Abundance (MSA) Index and Biodiversity Intactness Index (BII) , are two modelled indices that estimate the intactness of animal and plant communities spatially.[[8]] | |
| 9 | Which regions have a very low BII? | The BII is very low in some regions, such as Western Europe, that have a long history of intensive use of the landscape.[[9]] | |
| 10 | What does the BII indicate? | The Biodiversity Intactness Index (BII) estimates how much originally present biodiversity remains on average across the terrestrial ecological communities within a region.[[10]] | |
| 11 | What are the criteria of MSA and BII? | The indices range from 100-0%, with 100 representing an undisturbed natural environment with little to no human footprint. [[11]] | |
| 12 | What does SHI stand for? | The Species Habitat Index captures changes in species range and incorporates information about species habitat preferences with observed or modelled data on habitat loss and restoration, habitat fragmentation and climate change.[[12]] | |
| 13 | What does the SHI show? | For thousands of species with validated habitat associations worldwide the SH index measures the losses in habitat-suitable range from observed or modelled habitat change.[[13]] | |
| 14 | As far as 2020, how did the SHI evolved? | This index has fallen by 1% per decade since 1970 20 and, on average, the geographic distribution of terrestrial mammals, the only group for which baseline distribution could be estimated, has been reduced to 83% of pre-impact values. [[14]] | |
| 15 | What does the Liviing Planet Index represent? | The Living Planet Index (LPI) now tracks the abundance of almost 21,000 populations of mammals, birds, fish, reptiles and amphibians around the world.[[15]] | |
| 16 | What does the LP Index show? | Using the data from 20,811 populations of 4,392 species, the 2020 global LPI shows an average 68% decline in monitored populations between 1970 and 2016 (range: -73% to -62%). The percentage change in the index doesn’t represent the number of individual animals lost but reflects the average proportional change in animal population sizes tracked over 46 years.[[16]] | |
| 7 | Why is the biosphere integrity intex BII used in the Planetary Boundaries framework as an indicator? | Because it is estimated across a very large set of ecologically diverse animal and plant species.[[17]] | |
| 18 | What does the Biosphere Integrity Index indicates with regard human beings ecosystems? | The BII is a useful index of ecosystems’ ability to provide benefits to people. [[18]] | |
| 19 | What does the Biosphere Integrity Index indicates with regard human beings ecosystems? | The BII is a useful index of ecosystems’ ability to provide benefits to people. [[19]] | |
| 20 | What is the MSA index? | is a single number and standard national measure of the predicted eating quality and potential merit of a carcase. The MSA index is a number between 30 to 80, expressed to 2 decimal places (ie 54.62), to represent the eating quality potential of a whole carcase.[[20]] | |
| 21 | What is the decline in the MSA Index? | 1.1% per decade.[[21]] | |
| 22 | What percentage of the BII has fallen? | 79%[[22]] | |
| 23 | What percentage of pre impact values has the Species Habitat Index fallen? | 83%[[23]] | |
| 24 | What does the LPI measure? | Population abundance of thousands of vertebrate species around the world.[[24]] | |
| 25 | What is the Biodiversity Intactness Index about? | The Biodiversity Intactness Index estimates how much originally present biodiversity remains on average across the terrestrial ecological communities within a region. [[25]] | |
| 26 | What is the IUCN Red List Index? | IUNC tracks extinction risk.[[26]] | |
| 27 | Who tracks extinction risk? | The IUCN Red List Index.[[27]] | |
| 28 | How many of the species in the IUCN Red List Index are at risk of extinction? | ~1% [[28]] | |
| 29 | What is the Freshwater species index | An index that measures freshwater species.[[29]] |