Shifts in Phenology: Climate change alters the timing of key natural events, such as flower blooming and insect emergence
Range Shifts: Warmer temperatures can lead to shifts in the geographic ranges of plants and insects, potentially affecting the distribution of hummingbird habitats
Availability of Nectar: Changes in temperature and precipitation patterns can affect the availability and quality of nectar-producing flowers. Extended droughts or altered rainfall patterns
Habitat Fragmentation: Fragmentation of habitats due to human activities and climate change can isolate populations of hummingbirds
Extreme Weather Events: Increasing frequency and intensity of extreme weather events, such as hurricanes and storms, can destroy hummingbird habitats and disrupt migration routes.
Competitive Pressures: Climate change may alter the distribution and abundance of other bird species, potentially increasing competition for nectar and nesting sites with hummingbirds
Physiological Stress: Hummingbirds have specific temperature tolerances and metabolic requirements.
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