Evolution in an Urbanizing World
We usually get our urban birders to spot birds while they are out and about in the city. This week, we have the nest at Duke University, while the bird is off in the city. The nest may be abandoned since there is an egg spotted inside. Do you have a photo or video of... Continue Reading →
Last year I had the pleasure of meeting Dr. Malle Carrasco-Harris at the International Urban Wildlife Conference (#IUWC2019). Carrasco-Harris has been studying the role urbanization plays in the behavior of Eastern Copperhead snakes (Agkistrodon contortrix) and while we might not think of snakes as congruent with cities, multiple species of snakes have been able to... Continue Reading →
Amphibians can be really great "indicator species" that, if they are present and healthy, then the ecosystem is doing ok. Some amphibians though are really great generalists and can tolerate a range of ecosystem changes. This week, we see a two-lined salamander chomping on the bugs that the porch lights attract. Do you have a... Continue Reading →
James Baxter-Gilbert and colleagues from down under — Julia Riley and Martin Whiting — have been digging into the ecological and evolutionary responses to urbanization in a charismatic and common (at least if you're in Australia) group of lizards: Australian water dragons (Intellagama lesueurii). Previously, we told you about their findings that urban dragons are innately bold. In... Continue Reading →
Elephants have become a metropolitan species in several countries. Some are domesticated work animals, while others others pass through the city looking for food. Today's observation is brought to us by Alfons Lopez Tena, a sad reality of elephants foraging in a dump. Do you have a photo or video of an urban species doing... Continue Reading →
As urban centers continue to grow, so too does the research that investigates how urbanization influences evolution. However, urban marine ecosystems are often overlooked. Interestingly, population density along coastlines is 3-times higher than the global average but research in urban marine systems is more than 3-times lower than research inland. Researchers identified the main... Continue Reading →
The birders are back! This time, we see a Black-throated Green Warbler on the street. These birds are seen in the Northern American forests in the warm months and fly south for the winter months. This little bird is probably a tourist on the street on its migration south! Do you have a photo or... Continue Reading →
What is a lichen? Is it a plant? Is it fungus? Actually, lichen are a group of symbiotic fungi and algae! They are typically found in moist environments, growing on rocks and trees in the forest. Today's observation was found on a crosswalk sign! Do you have a photo or video of an urban species... Continue Reading →
Urban areas around the world are an interesting combination of non-native and native species. In London, urban foxes are a common sight and because of this, we would predict that urban foxes have evolved due to differing selection factors in cities. For mammalogists, examing and comparing skulls is a common way to measure changes that... Continue Reading →
Let's take a break this week from the urban birding realm. This week, we bring you marbled salamanders. Salamanders are usually found in wetlands, which are hard to come by inside cities. This is an awesome find! Do you have a photo or video of an urban species doing something unusual? What about a... Continue Reading →
The long-awaited first textbook on urban evolution, Urban Evolutionary Biology, was released this summer. This fantastic text features chapters written by several of the contributors to this blog, and came together with the hard work of three urban evolution researchers: editors Marta Szulkin, Jason Munshi-South, and Anne Charmantier. We got together (virtually) with Marta, Jason, and... Continue Reading →
If you enjoyed last week's urban birder observation, you'll probably get a kick out of this week's. Here we have a Peregrine Falcon just hanging out on a rusty vent! Do you have a photo or video of an urban species doing something unusual? What about a rare plant or animal that you were surprised... Continue Reading →
Life in the City turns 2 years old today (ish)! In true 2020 fashion, we missed our own birthday, by a whole month! Thank you all for following our blog. We are very proud of how it has grown and owe a huge thank you to our amazing contributors, which have more than doubled in... Continue Reading →
Urban birders are at it again. This week, we have a group of vultures hanging out in a parking lot, doin' what birds do... Do you have a photo or video of an urban species doing something unusual? What about a rare plant or animal that you were surprised to find in a city? If... Continue Reading →
Urban areas are dynamic, heterogeneous habitats that differ dramatically from your traditional “non-urban” habitats. These centers are complex, multi-level habitats that are full of interacting stressors. Additionally, urban habitats are fragmented via impervious surfaces and are subject to noise, chemical, and light pollution alongside human interaction(s). Humans (and their pets) directly and indirectly interact with... Continue Reading →
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