Evolution in an Urbanizing World
Some fries left on the ground, a half-eaten sandwich, or some breadcrumbs kindly given by someone on a park bench. Pigeons (Columba livia) in the city don’t shy away from eating human-derived foods. Although most pigeons are eager to eat our food scraps, this behaviour has been linked to a likely downside: the urban lifestyle... Continue Reading →
Urbanization strongly affects freshwater streams, because they are sensitive to land use due to their topographical location. The increase in discharge that occurs after rainfall is one of the most noticeable alterations to urban streams. In urban environments, buildings, roads, and other infrastructure rush the transportation of rainwater into streams by preventing it from soaking... Continue Reading →
What wakes you up in the morning? Is it your alarm clock? Is it the clattering of your housemate in the kitchen? Is it the smell of coffee? While these experiences happen like clockwork, for many organisms it is not sound or smell that wakes them up but the sun. Those first dawn beams of... Continue Reading →
Were bed bugs the first urban pest insect? Genome-wide patterns of bed bug demography mirror global human expansion Lindsay S. Miles, Brian C. Verrelli, Richard Adams, Yannick Z. Francioli, Daren C. Card, Ondřej Balvin, Todd A. Castoe and Warren Booth Published: 28 May 2025 https://doi.org/10.1098/rsbl.2025.0061 By Camille Block This newly published paper, coauthored by one... Continue Reading →
The platypus: a peculiar mix of DNA The platypus (Ornithorhynchus anatinus), a well known monotreme from Australia, is an animal that defies one’s imagination. With a bill like a duck, tail like a beaver and feet like an otter’s, this creature is a peculiar sight to see. Its life cycle is even more marvellous: the... Continue Reading →
When thinking about a city at night, chances are that you include some twinkling streetlights in your mental image. Billboards, streetlamps, and neon signs are no novel presence to city dwellers. These light sources are in technical terms called artificial lights at night, or ALAN for short. While thinking about a city at night can... Continue Reading →
Published April 10, 2025 in Mammal Research: Melanin-based colouration in European hedgehogs (Erinaceus europaeus): is it under selection in urban environments? Isabelle Defosseux, Cécile le Barzic, Pascal Arné, Grégory Jouvion & Julien Gasparini Abstract: Urbanisation is currently expanding at small and global scales, forcing several species to adapt to this new environment. In this context,... Continue Reading →
The shrinkage of natural landscapes with increased urbanization causes substantial shifts in ecosystems, particularly a decrease in bird diversity. Understanding the interactions between the urban heat island (UHI) effect, urban wetlands, and bird diversity is crucial to conserving biodiversity. Advised by Kristin Winchell, New York University undergraduate researcher Emerald Lin presented her poster at SICB... Continue Reading →
With the rise of modern medicine came the rise of pharmaceutical waste. Not only expired or discontinued drugs and hospital waste fall under this category, but also sources such as the components of ingested drugs that are not being metabolized by the patient, therefore reaches their faeces, which are disposed of in the bathroom and... Continue Reading →
Urbanization is happening all over the world. Everywhere you look, you can see that cities are expanding and new cities are being built. This is often at the expense of nature. There is not a lot of room for vegetation in cities and more and more existing vegetation and farmlands are being turned into urban... Continue Reading →
It is a common belief that human-modified areas, such as farmlands, support fewer bird species than natural habitats such as forests. However, new research by Zhao et al. (2024) challenges this idea. Their study of bird species diversity on islands off the coast of China has unexpected results that suggest that farmlands might play a... Continue Reading →
During the Society for Integrative and Comparative Biology (SICB) 2024 conference, I interviewed Andrea Beverly and Jamie Lau, from Radford University, who are studying how the construction of the Mountain Valley Pipeline (MVP) is impacting freshwater streams in Rural Virginia. We discuss their collaboration with local groups, the intersection between politics and science, and the... Continue Reading →
Next to the crucial trade route of the Panama canal sits Panama city, where an intriguing example of urban evolution has taken place. As Panama city has grown from a population of around 200,000 in the 1950’s to a population of around 2 million today, massive urbanization has taken place [1]. Urbanization is dramatically reshaping... Continue Reading →
The weather on the northern hemisphere is getting warmer which means beach days are approaching. Every beach dweller can confirm that seagulls (Larus sp.) can be very cunning and cheeky in order to steal food. Is this their ancestral behaviour or has this evolved with the rising of urban areas? Pavlova and Wronski (2020) studied... Continue Reading →
At the heart of the Amazon rainforest, near the confluence of the Rio Negro and Amazone, lies the metropole Manaus. Nicknamed the Paris of the Tropics, Manaus is home to over two million people and functions as the economical hub of the northern part of Brazil. Incidentally, it is also the last refuge of the... Continue Reading →
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