Evolution in an Urbanizing World
Check out these dueling kangaroos in a park in Australia's Gold Coast region! New Yorkers are used to seeing squirrels and rats roam around, but Australian residents sometimes encounter much larger mammal species in their cities. There are four species of kangaroos that occupy different ranges across the Australian continent. The Red Kangaroo, Macropus rufus, is... Continue Reading →
While I was out birding on Governor's Island, My friends and I came across this old traffic cone. It stood out to me as a sore thumb, a bright red monolith in a lawn of green grass. My curiosity led me to peek inside, and lo and behold! There was a Common House Spider (Parasteatoda... Continue Reading →
Activity patterns and behavior of Myocastor coypus in a gated community in the metropolitan area of Buenos Aires (Argentina) Magdalena Salas, Julio C Hernandez-Hernandez, Martín Iglesias, María J Corriale Abstract Anthropization processes confront local wildlife with a new set of conditions that may lead to local extinctions or allow the expansion of some species. This... Continue Reading →
Check out this Great Blue Heron's fun new perch! Kate spotted a heron sitting very comfortably on a discarded deck chair in Surrey, BC. Based on the condition of that chair, looks like lots of individuals have been utilizing this transplant toilet! Do you have a photo or video of an urban species doing something... Continue Reading →
Artificial light at night alters diurnal and nocturnal behavior and physiology in green anole lizards Laura A.Taylor, Christopher J. Thawley, Olive R.Pertuit, Abigail J.Dennis, Isabela R.Carson, ChenTang, Michele A.Johnson Abstract Artificial light at night (ALAN) disrupts biological rhythms across widely diverse organisms. To determine how energy is allocated by animals in different light environments, we investigated the... Continue Reading →
A global meta-analysis reveals higher variation in breeding phenology in urban birds than in their non-urban neighbours Pablo Capilla-Lasheras, Megan J. Thompson, Alfredo Sánchez-Tójar, Yacob Haddou, Claire J. Branston, Denis Réale, Anne Charmantier, Davide M. Dominoni Abstract Cities pose a major ecological challenge for wildlife worldwide. Phenotypic variation, which can result from underlying genetic variation... Continue Reading →
Check out this Red-Tailed Hawk going dumpster diving in Morningside Park on Wednesday. This resourceful hawk didn't hesitate to dive in and search for an afternoon snack, along with a shopping receipt! The hawk appeared very comfortable hopping in and out of the trashcan without injuring its wings. Perhaps this is a new behavior to... Continue Reading →
Humans have significantly impacted environmental conditions and landscapes for several decades through our urban expansion. These changes have produced selective pressures different from those present in non-urban areas. In response to these selective pressures, many species have diverged in physical, behavioral, and reproductive traits between their urban and non-urban populations. In addition, urban landscapes are... Continue Reading →
Comfortably Numb? Regional Differences in the Relationship Between Indices of Urbanization and a Stress Indicator in Eastern Gray Squirrels Rebecca Rimbach, Alannah Grant, Pratik R. Gupte, Amy Newman, Mason R. Stothart, and Herman Pontzer Abstract Wild animals face novel environmental challenges as natural habitats give way to urban areas, with numerous biotic and abiotic differences... Continue Reading →
Urbanization drives adaptive evolution in a Neotropical bird Rilquer Mascarenhas, Pedro Milet Meirelles, Henrique Batalha-Filho Abstract Urbanization has dramatic impacts on natural habitats and such changes may potentially drive local adaptation of urban populations. Behavioral change has been specifically shown to facilitate fast adaptation of birds to changing environments, but few studies have investigated the genetic mechanisms... Continue Reading →
Effects of urbanization on the trophic niche of the brown anole, a widespread invasive lizard Zachary A.Chejanovski, Sean T.Giery, Jason J.Kolbe Abstract Urbanization is one of the most dramatic forms of environmental change with the potential to alter trophic relationships among organisms in cities. In this study, we combine gut-content and stable isotope analyses of... Continue Reading →
Urban evolution of thermal physiology in a range-expanding, mycophagous fruit fly, Drosophila tripunctata Sarah E. Diamond, Ryan A. Martin, Grace Bellino, K. Nicole Crown, Eric G. Prileson Abstract In Drosophila spp., their often high number of annual generations, large population sizes and large amounts of standing genetic variation should predispose them to undergo contemporary adaptation to climatic warming.... Continue Reading →
Fast-paced city life? Tempo and mode of phenotypic changes in urban birds from Switzerland Evelyn Hüppi & Madeleine Geiger Abstract Humans' large influence on the environment has constructed many new ecological niches, such as in urban areas. Phenotypic changes, including morphological ones related to human influence, are known from a small number of bird species.... Continue Reading →
Natural and anthropogenic landscape factors shape functional connectivity of an ecological specialist in urban Southern California Sarah M. Wenner, Melanie A. Murphy, Kathleen S. Delaney, Gregory B. Pauly, Jonathan Q. Richmond, Robert N. Fisher, Jeanne M. Robertson Abstract Identifying how natural (i.e., unaltered by human activity) and anthropogenic landscape variables influence contemporary functional connectivity in... Continue Reading →
The public health implications of gentrification: tick-borne disease risks for communities of color Samniqueka J. Halsey, Meredith C. VanAcker, Nyeema C. Harris, Kaleea R. Lewis, Lisette Perez, and Genee S. Smith. Abstract Gentrification operates as a social driver of health that can increase tick-borne disease (TBD) risk for communities of color through either population displacement... Continue Reading →
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