Impact of Climate Change on Migratory Birds

In the reading passage, the author discusses the impact of climate change on migratory birds. The passage states that rising temperatures have altered the timing of migration patterns, which could lead to mismatches in the food supply and nesting periods. The author emphasizes that not only are the migratory pathways changing, but some species are also shifting their habitats northward in response to warmer climates.

In the accompanying lecture, the speaker provides specific examples of bird species that are affected by these changes. For example, the speaker mentions the American Robin, which has started migrating earlier than in previous decades. Additionally, she highlights a study showing that these changes have resulted in increased competition for resources among species that arrive in the same areas. The speaker concludes that if these trends continue, the ecological balance could be disrupted in various regions, leading to longer-term consequences for entire ecosystems.