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This article explores the profound effects of climate change on various species and their behaviors. We observe that reindeer are expected to vanish from their current habitats by the century's end, while marmots are ending hibernation three weeks earlier than 30 years ago. Additionally, red squirrels are breeding earlier, and the range of red foxes is shifting northward. Polar bears are thinner than in the past, and rising temperatures are affecting the sex ratios of turtle hatchlings. Other species, including fish and plants, are also adapting their behaviors in response to changing climates.
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Climate Change and Speciation How Species Respond to Changes in Climate and How News Species From
Behavior Change • Reindeer expected to disappear from current range by end of century • Marmots end hibernation 3 weeks earlier than they did 30 years ago • Canadian red squirrels breeding about 18 days earlier • Red foxes spreading north -- territory occupied by their arctic cousins • Polar bears thinner than those of 20 years ago • Elephant seal pups leaner because prey is migrating to cooler waters • Loggerhead sea turtles laying eggs 10 days earlier than 15 years ago • Rising temp affect the sex of Hawkbill turtle hatchlings—more females • Warm water organisms (barnacles, mollusks, tidal snails) moving north • Fish species moving north in search of cooler waters • Tree swallows laying eggs about nine days earlier 40 years ago • Common murres breeding 24 days earlier than a decade ago • Plants thriving in areas where growth was limited before • Plants like columbines and wild geraniums blooming earlier • Edith's checkerspot butterflies are moving northward
Example • Horses in Oregon
