Tag: urban heat island

New Lit Alert: Continent-wide parallel urban evolution of increased heat tolerance in a common moth

Continent-wide parallel urban evolution of increased heat tolerance in a common moth Thomas Merckx, Matthew E. Nielsen, Tuomas Kankaanpää, Tomáš Kadlec, Mahtab Yazdanian, Sami M. Kivelä Abstract Urbanization and its urban-heat-island effect (UHI) have expanding footprints worldwide. The UHI means that urban habitats experience a higher mean and more frequent extreme high temperatures than rural... Continue Reading →

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The rapid spread of an urban lichen

Is the urban landscape pushing lichen evolution or is it just providing space for opportunists? Harold Timans Photo by: Matthijs MolenaarPhysciella chloantha is shown with a fertile apothecium and the lobes producing vegetative soralia The urban environment creates a multitude of habitats that differ widely in their abiotic factors. In one street it can be... Continue Reading →

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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 →

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Is Plastic Always Fantastic? Selection on Thermal Plasticity in Urban Anoles

a lizard clinging to a metal fence

A recent publication in Nature Communications goes above and beyond in studying how selection on adaptive and/or maladaptive gene expression plasticity may be regulating thermal tolerance in urban anoles. The importance of plasticity in the colonization of new environments is a widely-accepted argument, however, the role of plasticity in facilitating adaptive evolution remains controversial. Plasticity... Continue Reading →

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New Lit Alert: Urbanization extends flight phenology and leads to local adaptation of seasonal plasticity in Lepidoptera

Urbanization extends flight phenology and leads to local adaptation of seasonal plasticity in Lepidoptera Thomas Merckx, Matthew E. Nielsen, Janne Heliölä, Mikko Kuussaari, Lars B. Pettersson, Juha Pöyry, Juha Tiainen, Karl Gotthard, and Sami M. Kivelä Abstract Urbanization is gaining force globally, which challenges biodiversity, and it has recently also emerged as an agent of... Continue Reading →

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New Lit Abstract: De Novo Transcriptome Analysis Reveals Potential Thermal Adaptation Mechanisms in the Cicada Hyalessa fuscata

De Novo Transcriptome Analysis Reveals Potential Thermal Adaptation Mechanisms in the Cicada Hyalessa fuscata Hoa Quynh Nguyen, Yuseob Kim, and Yikweon Jang Abstract In metropolitan Seoul, populations of the cicada Hyalessa fuscata in hotter urban heat islands (“high UHIs”) exhibit higher thermal tolerance than those in cooler UHIs (“low UHIs”). We hypothesized that heat stress... Continue Reading →

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Anoles Adapt to Beat the Urban Heat

Urban areas are hot. The urban heat island effect causes urbanized regions to be significantly warmer than nearby forested areas, and the tropical islands of the Caribbean are no exception to this pattern. Just spend a few minutes in the noon heat in San Juan, Puerto Rico, and you will beg for the cool reprieve... Continue Reading →

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Evolution 2019: A Test for Transgenerational Plasticity in the Adaptive Divergence of Acorn Ant Thermal Tolerance Across an Urban-Rural Temperature Cline

Populations are often challenged to live in novel or rapidly changing environments. This is probably most clear in cities where new habitat is being created causing native species to encounter novel habitat features. But because of this, cities set the stage to help researchers understand the plastic and evolutionary shifts that occur in wild organisms.... Continue Reading →

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Media Summary: Planet Earth II – Cities

As someone studying animals in cities, I often feel need to justify why it is essential that we understand how organisms utilize and evolve within urban habitat. People may think that I study urban environments because I’m lazy or can’t handle real fieldwork, but the truth is that we know very little about how animal... Continue Reading →

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