Climate Change and Shrinkage of Small Mammals: Are Rodents Smaller Than They Were 100 Years Ago?
Madera, Sydney
Madera, Sydney
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Abstract
If climate change is increasing national temperatures, then Bergmann’s rule reasons that it’s likely animals are shrinking in response. To test this hypothesis, I collected data for 4 different species using museum databases to compare rodent sizes within the past 100 years. I’ve found that the amount of change varies, but in states such as Colorado or California, rodents are significantly decreasing in size. Body size determines a lot of important characteristics for animals such as their lifespan, diet, and vulnerability to predation, so any changes in one species may lead to a cascade of effects for an entire ecosystem.
Description
Undergraduate
Date
2024-01-01
