Question
SLPaper 1
Figure 1: Jaguar (Panthera onca)
Listed as "near threatened" on the IUCN Red List of endangered species.
1.[1]
State one criterion used to determine the IUCN Red List status of the jaguar shown in Figure 1.
Verified
Solution
Award
- population size / number of mature individuals;
- reduction in population size;
- distribution / geographic range / number of locations species is found;
- degree of fragmentation;
- quality of habitat / loss of habitat / habitat degradation;
- probability/risk of extinction;
- trophic level;
Note: Do not accept ‘reproduction rates / habitat distribution / degree of specialization / number of species / habitat is under threat’.
2.[2]
Distinguish between the role of the jaguar as a keystone species and as a flagship species.
Verified
Solution
Keystone species:
- apex/top predator / integral to the food web/ecosystem;
Flagship species:
- popular/charismatic image / by protecting it, will help to protect the ecosystems/habitat/other species / used to raise funds for conservation;
Note: Do not accept descriptions of just predators e.g. ‘controls population of primary consumers / eats organisms below it in the food web’.
Do not accept ‘top of food chain / balances the food chain’.
