Q5.27. Which of the following statements about the effects of climate change on phenology is true?
1. Climate-induced changes in phenology are expected, but have yet to be documented.
2. Temperature-cued spring events are occurring later, because winters are longer and cooler.
3. Changes in phenology do not affect reproduction and therefore have no impact on fitness.
4. Changes in timing are more likely when events are cued by temperature, not day length.