Many urban birds are not migrating anymore, according to a study published recently in the journal, Ecology. Are changes in migration due to genetic or environmental factors or both?
Have you noticed the resident populations of Canada Geese? Yeah...
The link provides an excellent summary of the study's findings. One interesting finding is that the advantage to non-migration is more advantageous for male birds. These urban males mature sexually earlier than their forest counterparts.
Remember, this study was done on one bird species. More research will have to be carried out on other species to determine the general trends- if any- of non-migratory urban birds.
Sounds like a science project, kiddos!
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Building Healthy Urban Ecosystems...
Founded in Boston, MA in 1998, the Urban Ecology Institute (UEI) and its community and educational partners have been improving the health of urban ecosystems through education, research, and community action. Our mission is to help urban communities build healthy, vibrant cities by educating residents about their environment, connecting them to each other, and engaging them in the transformation of their neighborhoods where people love to live.
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