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Week 5 Answers

1. Many long range migrating birds heading south to sub-Saharan Africa in the autumn are leaving the UK (compared with 50 years ago) - Earlier

2. Many short range migrating birds heading south to the Mediterranean region in the autumn are leaving the UK (compared with 50 years ago) - Later

3. Compared to 40 years ago, are birds in the UK laying eggs - Later

4. Approximately what proportion of coral reefs have been killed from ocean warming in the past 30 years? - 25%

5. What effects does CO2 have when dissolved in the ocean? - Lowered pH

6. Which of the following are NOT are major impact of destruction of coral reefs? Sea level rises

7. Phenology is the study of changes on species distributions and timings of events such as hatching or migration

8. What changes are pterapods experiencing due to changes in the ocean? - Pitted shells