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  2. Urban ecology - Wikipedia

    en.wikipedia.org/wiki/Urban_ecology

    [1] [2] Urban ecology is a recent field of study compared to ecology. [3] Currently, most of the information in this field is based on the easier to study species of mammals and birds [source needed]. To close the gap in knowledge, attention should be paid to all species in the urban space like insects and fish.

  3. Cell surface receptor - Wikipedia

    en.wikipedia.org/wiki/Cell_surface_receptor

    Cell surface receptors (membrane receptors, transmembrane receptors) are receptors that are embedded in the plasma membrane of cells. [1] They act in cell signaling by receiving (binding to) extracellular molecules. They are specialized integral membrane proteins that allow communication between the cell and the extracellular space.

  4. Street hierarchy - Wikipedia

    en.wikipedia.org/wiki/Street_hierarchy

    At the lowest level of the hierarchy, cul-de-sac streets, [1] by definition non-connecting, link with the next order street, a primary or secondary "collector"—either a ring road that surrounds a neighbourhood, or a curvilinear "front-to-back" path—which in turn links with the arterial. Arterials then link with the intercity highways at ...

  5. Wildlife corridor - Wikipedia

    en.wikipedia.org/wiki/Wildlife_corridor

    A wildlife corridor in Brazil.. A wildlife corridor, also known as a habitat corridor, or green corridor, [1] is a designated area that connects wildlife populations that have been separated by human activities or structures, such as development, roads, or land clearings.

  6. American Association of State Highway and Transportation ...

    en.wikipedia.org/wiki/American_Association_of...

    Some noteworthy AASHTO publications are: [9] A Policy on Geometric Design of Highways and Streets, often called "The Green Book" because of the color of its cover.This book covers the functional design of roads and highways including such things as the layout of intersections, horizontal curves, and vertical curves.

  7. Impervious surface - Wikipedia

    en.wikipedia.org/wiki/Impervious_surface

    The U.S. NLCD impervious surface data set may provide a high-quality nationally consistent land cover data set in a GIS-ready format that can be used to estimate TIA value. [6] The NLCD consistently quantifies the percent anthropogenic TIA for the NLCD at a 30-meter (a 900 m2) pixel resolution throughout the Nation. Within the data set, each ...

  8. Quizlet - Wikipedia

    en.wikipedia.org/wiki/Quizlet

    Quizlet is a multi-national American company that provides tools for studying and learning. [1] Quizlet was founded in October 2005 by Andrew Sutherland, who at the time was a 15-year old student, [ 2 ] and released to the public in January 2007. [ 3 ]

  9. Runoff (hydrology) - Wikipedia

    en.wikipedia.org/wiki/Runoff_(hydrology)

    Surface runoff often occurs because impervious areas (such as roofs and pavement) do not allow water to soak into the ground. Furthermore, runoff can occur either through natural or human-made processes. [5] Surface runoff is a major component of the water cycle. It is the primary agent of soil erosion by water.