Unexpected dispersal of Australian brush-turkeys (Alectura lathami) in an urban landscape MATTHEW J. HALL, JOHN M. MARTIN, ALICIA L. BURNS, AND DIETER F. HOCHULI Abstract Australian brush-turkeys (Alectura lathami) are atypical urban colonising birds due to their poor flight and dispersal ability, ground foraging and nesting behaviour, and lack of parental care for their chicks.... Continue Reading →
Urbanization and the Avian Endocrine System
In a previous post titled Meta-analysis of Urban Bird Phenology, we discussed how urban conditions have affected the average value of phenology and reproductive phenotypes in bird species. Capilla-Lasheras et al. found that urban bird populations had lower values than their non-urban conspecifics for three life-history traits, indicating earlier lay dates, smaller clutch sizes, and... Continue Reading →
How the GLUE Animation Came About
“How life adapts to cities around the world” is a 5 minute educational animated film created by Sherry An (myself), a science and medical illuHow the GLUE Animation Came Aboutstrator and designer from Mississauga, Canada. The film uses 3D animation and visual storytelling to share the goals and results of the first GLUE study in... Continue Reading →
Urban Observation of the Week: Eastern Grey Kangaroo
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 →
Urban Observation: “Cone” Spider
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 →
New Lit Alert: Activity patterns and behavior of Myocastor coypus in a gated community in the metropolitan area of Buenos Aires (Argentina)
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 →
Urban Observation: Great Blue Heron
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 →
New Lit Alert: Artificial light at night alters diurnal and nocturnal behavior and physiology in green anole lizards
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 →
New Lit Alert: A global meta-analysis reveals higher variation in breeding phenology in urban birds than in their non-urban neighbours
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 →
Urban Observation of the Week: Red-Tailed Hawk
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 →
Meta-analysis of Urban Bird Phenology
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 →
New Lit Alert: Comfortably Numb? Regional Differences in the Relationship Between Indices of Urbanization and a Stress Indicator in Eastern Gray Squirrels
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 →
New Lit Alert: Urbanization drives adaptive evolution in a Neotropical bird
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 →
New Lit Alert: Effects of urbanization on the trophic niche of the brown anole, a widespread invasive lizard
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 →
New Lit Alert: Urban evolution of thermal physiology in a range-expanding, mycophagous fruit fly, Drosophila tripunctata
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 →