Evolution in an Urbanizing World
Knotted willows characterise many Dutch landscapes, where they are often seen in a row along creeks that have existed for decades. These willows are pruned every few years, which causes the characteristic wide “knot” at the treetop to form over time. Complex shapes can form due to this pruning, and it is quite common to... Continue Reading →
Domestic Cats (Felis silvestris catus; Felis catus) are a human commensal, said to have started their relationship with us during the era of the first settled farmers (approx. 12.000 years ago) within the Fertile Crescent region of the middle east.1 We took them into our homes and slowly transformed them into the royalty that a lot... 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 →
Increasing artificial light In recent decades, the urban population has grown exponentially worldwide, with the expectation that the urban population will continue to increase the next decades. As cities expand, so does the reliance on artificial light sources to illuminate the night. This increases the visibility for humans when it is dark, but it can... Continue Reading →
Bottlenose Dolphins' Adaptations to Noise in Urban Harbours: Shouting, Eavesdropping & Fleeing Health risks of urban noise to Bottlenose dolphins Recently, urban sightings of cetaceans have become increasingly prevalent, which can be linked to higher water quality and healthier environments in general. Recent examples include dolphin sightings in the Baltimore (US), and Bridlington (UK); killer... Continue Reading →
As urbanization continues to reshape landscapes, its effects on wildlife have become a subject of growing concern. In the unique context of Cuba, a recent study focused on an endemic lizard species, Anolis homolechis, found in both natural and suburban environments. This in-depth study relied on adapted tracking methods deployed over several years and explored... Continue Reading →
[embedyt]https://www.youtube.com/watch?v=obHtOIJrwh8[/embedyt] Our perceptions of wildlife and nature are shaped by the media which highlights. The mold has been set by great figures like David Attenborough, with his memorable narrative voice. However, these documentaries only explored 'pristine' landscapes in far away lands, while ignoring the creatures that must contend with the Urban Jungle. In my first... Continue Reading →
Who would ever have expected to see plovers on the banks of the Huangpu River in Shanghai? The Huangpu River is the "mother river" of Shanghai that flows north throughout Shanghai. It passes some of the most population-dense regions of the city, including Lujiazui and the Bund, and provides green paths on both banks for... Continue Reading →
Spotted Lanternflies (Lycorma delicatula) have become an unavoidable nuisance since their arrival in the Big Apple in 2020. These clumsy hemipterans have managed to dominate the urban jungle due to their bright red warning coloration, which is indicative of their bitter tasting chemicals they uptake from their favorite food source, the Tree-of-Heaven (Ailanthus altissima). Despite... Continue Reading →
Lurking beneath the trash laden leaf litter of the 5 boroughs lurks a secretive little amphibian that exemplifies the struggle between the forces of urbanization and the biological need to adapt or face extinction. The Eastern Red-backed Salamander (Plethodon cinereus) is a unique kind of caudate with numerous traits that make it well equipped to... Continue Reading →
From hantavirus to the plague, rats have long since been reservoirs for a whole host of nasty infectious diseases. They live in our cities and feed off our garbage, sharing with us their fleas, ticks, and pathogens as a thank-you. With more urban development comes more rats and more potential for zoonotic diseases, making the... Continue Reading →
Although many urban residents are woefully familiar with flies (Order: Diptera), I am willing to bet not many know about the Peacock Fly (Callopistromyia annulipes). A native of North America, this diminutive fly stands out from the rest of its kin due to its rather peculiar behavior, seen below! This otherwise cryptically-colored fly uses its... Continue Reading →
Urban environment determines population genetics in the green toad, Bufotes viridis Viktória Vargová, Damiána Gužiová, Monika Balogová, Natália Pipová, Marcel Uhrin & Peter Kaňuch Abstract Heavily urbanized areas can hinder dispersal and gene flow between amphibian populations. Given the growth potential of urbanization, it is important to examine how this specific environment shapes their genetic... Continue Reading →
In response to human impact on the environment—from increased light, sound, air, and water pollution, to higher levels of interaction with humans—organisms must adapt to novel conditions in order to survive. One area in which organisms adapt is behavior. von Merton et. al. (2022) explores how the behavior and personality of two shrew species (Crocidura... Continue Reading →
Metabolic adjustment in urban birds: glycometabolic enzyme activities in urban and rural tree sparrows (passer montanus) J Shang, S Cun, S Zhang, W Liang Abstract Urbanization is rapidly changing habitats of wild birds around the world. Food availability is one of the important factors leading to phenotypic differences between urban and rural bird populations. Comparing... Continue Reading →
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