Question

Q5.27. Which of the following statements about the effects of climate change on phenology is true? Phenological changes from climate warming are expected but have yet to be documented. Phenological events are occurring later in the spring, because winters are colder and longer. Phenological changes do not affect reproduction and therefore do not affect fitness. Phenological changes are more likely when events are cued by temperature, not day length.

Answer 1

Phenological events are occurring later in the spring, because winters are colder and longer.

Step-by-step explanation:

The correct statement about the effects of climate change on phenology is:

Phenological events are occurring later in the spring, because winters are colder and longer.

Climate change affects the timing of seasonal events such as flowering in plants or migration in birds. Research has shown that many plant species are flowering earlier in response to climate warming. However, in the case of phenological events occurring later in the spring, this is because winters are colder and longer.

Answer 2

Phenological changes from climate warming have been documented and are expected to continue. One example is the earlier flowering of plant species in Great Britain. The timing of phenological events is important for the survival of species that depend on each other.

Step-by-step explanation:

Phenological changes from climate warming have been documented and are expected to continue. One example of this is the earlier flowering of plant species in Great Britain. Researchers have found that 385 plant species are flowering 4.5 days sooner than they did 40 years ago. Insect-pollinated species are more likely to flower earlier than wind-pollinated species. The timing of phenological events is important for the survival of species that depend on each other, such as insect-pollinated plants and their pollinators.