Syllabus Edition
First teaching 2015
Last exams 2025
Determining Conservation Status
Written by: Alistair Marjot
Reviewed by: Bridgette Barrett
Determining Conservation Status
International cooperation is essential if conservation is to be successful
There are several agreements and authorities that exist within and between countries with the aim of protecting and conserving species worldwide
IUCN
The International Union for the Conservation of Nature (IUCN) is the global authority on the status of the natural world and the measures needed to safeguard it
One of the duties that the IUCN carries out is assessing the conservation status of animal and plant species around the world
Scientists use data and modelling to estimate the category each species should be in
Factors used to determine the conservation status of a population include:
Population size (smaller populations are usually at a greater risk of extinction)
Degree of specialisation
Distribution
Reproductive potential and behaviour
Geographic range
Degree of endemicity (i.e. if the species is only found in a single specific area)
Degree of habitat fragmentation
Quality of habitat
Trophic level (animals in higher trophic levels are usually at a greater risk of extinction)
Probability of extinction
The IUCN has their own classification system
There are several different categories and levels that a species can fall into depending on its population numbers and the threats and risks to those populations
Animals that are on the IUCN Red List of Threatened Species™ can be seen online as this list is made public
The IUCN classification system of species - scientists are continually updating and reviewing the conservation status of species
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