Evolution in an Urbanizing World
Urbanization is rapidly transforming the Earth leading to drastic changes in the local ecological communities and changing the evolutionary dynamics of organisms living within cities. Previous research has shown that urbanization can prohibit, facilitate, or have little effect on gene flow but the scale at which these phenomena occur are highly dependent on the organism,... Continue Reading →
In some communities people will feed the local birds, ensuring that they will have a great view of these birds. Oftentimes, pigeons will locate these feeding spots and aggregate. In this neighborhood in downtown Toronto, one person purposefully leaves food for the pigeons. Although feeding wildlife is not advisable and can lead to unintended consequences... Continue Reading →
Like many of you, I've been working from home due to the Coronavirus pandemic. My University suspended face-to-face classes two weeks ago and closed the campus to all nonessential personnel on Sunday night. Knowing this was coming, I packed up my desktop, hard drives, and essential books, and brought them home with me and got... Continue Reading →
If you've walked around a city with pigeons, you might have noticed that many of them are missing toes or have deformed feet. These foot deformities are common and may arise due to a number of different ailments including: chemicals that make surfaces sticky or apply an unpleasant odor; physical deterrents that are placed on... Continue Reading →
As you may have guessed by now, urbanization changes the natural landscape and this can have consequences for the organisms that live in them. Feral pigeons, which had been domesticated thousands of years ago and transported globally by humans, are not immune to rapid urbanization impacts. Previous studies have shown that there can be inbreeding... Continue Reading →
Following the plenary at IUWC 2019, this session focused on integrating urban ecology research with community engagement. The speakers here built on some of the ideas expressed by Chris Schell previously on this site. Pigeons & Passers-by Elizabeth Carlen, an editor for this blog and PhD student in the Biological Sciences department at Fordham University... Continue Reading →
One way that animals may adapt to urban environments is by expanding their diet to include anthropogenic food, as discussed in the earlier post “Is Anthropogenic Food Waste Driving the Evolution of Urban Animals?”. But how can we tell if urban animals are actually consuming enough anthropogenic food to change physiology and drive evolution? We... Continue Reading →
Collecting samples in urban environments can present some challenges (as Matt Combs describes in "The Good, The Bad, and The Smelly" and Jane Remfert describes in “Urban Residential Field Tip”). As someone working on pigeons in Northeastern cities, I’ve encountered problems while simply trying to collect my samples. Many ornithologists use mist nets, but these... Continue Reading →
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