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Butchart, Stuart H. M.

The article comments on the paper "Conservation status as a biodiversity trend indicator: recommendations from a decade of listing species at risk in British Columbia," by J. E. Quayle and L. R. Ramsay in a 2005 issue. It is pointed out that IUCN Red List Index (RLI) overcomes the three problems observed by Quayle and Ramsay. The primary advantage of the RLI is its geographic representativeness because it is based on data for nearly all species in a taxonomic group. Its major disadvantage is its somewhat coarse temporal resolution. However, the RLI and population-trend-based indicators are highly complementary with regards to their geographic representativeness and temporal resolution.
The article comments on the paper "Conservation status as a biodiversity trend indicator: recommendations from a decade of listing species at risk in British Columbia," by J. E. Quayle and L. R. Ramsay in a 2005 issue. It is pointed out that IUCN Red List Index (RLI) overcomes the three problems observed by Quayle and Ramsay. The primary advantage of the RLI is its geographic representativeness because it is based on data for nearly all species in a taxonomic group. Its major disadvantage is its somewhat coarse temporal resolution. However, the RLI and population-trend-based indicators are highly complementary with regards to their geographic representativeness and temporal resolution.
The article comments on the paper "Conservation status as a biodiversity trend indicator: recommendations from a decade of listing species at risk in British Columbia," by J. E. Quayle and L. R. Ramsay in a 2005 issue. It is pointed out that IUCN Red List Index (RLI) overcomes the three problems observed by Quayle and Ramsay. The primary advantage of the RLI is its geographic representativeness because it is based on data for nearly all species in a taxonomic group. Its major disadvantage is its somewhat coarse temporal resolution. However, the RLI and population-trend-based indicators are highly complementary with regards to their geographic representativeness and temporal resolution.
The article comments on the paper "Conservation status as a biodiversity trend indicator: recommendations from a decade of listing species at risk in British Columbia," by J. E. Quayle and L. R. Ramsay in a 2005 issue. It is pointed out that IUCN Red List Index (RLI) overcomes the three problems observed by Quayle and Ramsay. The primary advantage of the RLI is its geographic representativeness because it is based on data for nearly all species in a taxonomic group. Its major disadvantage is its somewhat coarse temporal resolution. However, the RLI and population-trend-based indicators are highly complementary with regards to their geographic representativeness and temporal resolution.
The article comments on the paper "Conservation status as a biodiversity trend indicator: recommendations from a decade of listing species at risk in British Columbia," by J. E. Quayle and L. R. Ramsay in a 2005 issue. It is pointed out that IUCN Red List Index (RLI) overcomes the three problems observed by Quayle and Ramsay. The primary advantage of the RLI is its geographic representativeness because it is based on data for nearly all species in a taxonomic group. Its major disadvantage is its somewhat coarse temporal resolution. However, the RLI and population-trend-based indicators are highly complementary with regards to their geographic representativeness and temporal resolution.
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