Evolution in an Urbanizing World
Have you ever seen a groundhog in Central Park? Or any other urban park? https://twitter.com/DiveArtist/status/1683549457999175680 According to @BirdCentralPark, these adorable rodents are not a common sight in Central Park, but there have been known individuals in the northern parts of the park. The groundhog (Marmota monax) is a very widespread North American species. Their range... Continue Reading →
While huddled up in a nook on my apartment's rooftop, camera set up and aimed at the skies above, I briefly witnessed a skirmish between a Red-tailed Hawk (Buteo jamaicensis) and a Peregrine Falcon (Falco peregrinus). I was able to document the interaction above my head with the featured image above. I feel so honored... Continue Reading →
The European Starling Sturnus vulgaris Ever had such a fondness for an author, that you wanted to recreate what they wrote, in real life? That’s exactly what Eugene Schieffelin did with the European Starling in Central Park, NYC, when he decided to introduce as many of the birds mentioned in Shakespeare’s works to North America... 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 →
Once on the brink of extinction, thanks to conservation efforts the Bald Eagle (Haliaeetus leucocephalus) has made a comeback. This predator can be found across North America to Northern Mexico and once had an estimated population size of 300,000-500,000. However, the use of DDT disrupted the bird's ability to metabolize calcium and resulted in birds... Continue Reading →
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 →
This week we are cross-posting from the Ecology & Evolution blog written by Dr. Emily Puckett and Elizabeth Carlen. Check out the original post here. Observations of numerous animal populations have documented morphometric changes in response to urbanization. Examples abound including: urban populations of anole lizards have longer limbs and more toe lamellae that aid in moving... Continue Reading →
As the largest city in the United States, New York City seems to be full of all sorts of urban wildlife! This week, we bring you the smoking cockroach. If your pesticides won't kill it, neither will smoking cigarettes. Urban birds are known to incorporate cigarette butts into their nests, which may function as... Continue Reading →
The field of urban evolution is relatively young, but researchers have been fascinated by animal movement through cities for quite some time. Recently, I was perusing the archives of the Journal of the Lepidopterists’ Society and came across a note by Sidney Hessel detailing the movements of monarch butterflies through Manhattan. He observed 82 monarchs... Continue Reading →
This week our observation comes from Dr. Christy Zolnik who spotted this Red-tailed Hawk (Buteo jamaicensis) on the southern edge of Marcus Garvey Park in Harlem, New York City. We've posted about Red-tailed Hawks before as part of our Urban Observation of the Week, but seeing hawks in the city never ceases to amaze me.... Continue Reading →
Virginia opossums (also known as "opossums" or "possums") might be common in suburbs (we've seen them nesting in a BBQ grill), but they're rather rare in city centers. That's why reddit user ShabShoral was surprised to see an opossum hanging out in front of the makeup store Sephora at Union Square in New York City.... Continue Reading →
This tribute also corresponds with another annual ritual -- the migration of birds from their summering grounds north of New York City, to their wintering grounds south of the city
Marine mammals might not be the first thing that comes to mind when thinking about the bright lights of the big city, but in the Inwood neighborhood of New York City (located at the very top of Manhattan), there has been an exciting visitor -- a male harbor seal (Phoca vitulina). Thanks to rescue and... Continue Reading →
We get a whole lot of New York City's wildlife observations here. For your viewing pleasure, here is the Eastern Phoebe, which may look like it is in pristine wildlife, but listen closely and you can hear the sounds of the city. Do you have a photo or video of an urban species doing... Continue Reading →
A few weeks ago one of the students in my department, Stephanie Lieffrig, had this Red-Tailed Hawk (Buteo jamaicensis) land on her AC unit in the Belmont neighborhood of the Bronx, New York. Hawks, along with Peregrine Falcons (Falco peregrinus) are quite common in New York City and AC units are a rather common perch... Continue Reading →
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