The study uses 30 years of data on a population of North American red squirrels in Yukon, Canada, examining how the number of offspring and total lifespan differed between squirrels who lived in the same area in which they were born and those who were newcomers to the area. And the results show that sex plays a major role.
"The benefits to living in a different population than you were born are sex-dependent," explained April Martinig, PhD student in the Department of Biological Sciences and lead author on the study. "Males benefit from moving away, whereas females do not. We also found that the decision to move away or stay at home has an impact on offspring."
New - Research - Squirrels - Population - Offspring
New research shows that male squirrels who move outside of the population they were born to live longer and have more offspring.
For male squirrels, moving away is beneficial because they no longer need to compete with their...
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