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The sound tube in Melbourne, Australia, designed to reduce roadway noise without detracting from the area's aesthetics. A noise barrier (also called a soundwall, noise wall, sound berm, sound barrier, or acoustical barrier) is an exterior structure designed to protect inhabitants of sensitive land use areas from noise pollution.
It is known under numerous common names, including common tree frog, four-lined tree frog, golden tree frog [2] or striped tree frog. Many past authors have united it with the common Indian tree frog in P. maculatus (or Rhacophorus maculatus , as was common in older times), but today they are generally considered distinct species.
Mountain chorus frogs are part of the family Hylidae, also known as the tree frogs. Tree frogs are one of the largest families in the order Salientia (also called Anura). Because they are so colorful and have many acrobatic talents, they have been called the "clowns and high-wire artists" of the amphibian world. The almost 500 species of tree ...
Tree frogs are members of these families or genera: Hylidae, or "true" treefrogs, occur in the temperate to tropical parts of Eurasia north of the Himalayas, Australia and the Americas. Rhacophoridae, or shrub frogs, are the treefrogs of tropical regions around the Indian Ocean: Africa, South Asia and Southeast Asia east to Lydekker's line.
A pair of headphones being tested inside an anechoic chamber for soundproofing. Soundproofing is any means of impeding sound propagation.There are several methods employed including increasing the distance between the source and receiver, decoupling, using noise barriers to reflect or absorb the energy of the sound waves, using damping structures such as sound baffles for absorption, or using ...
The yellow-spotted tree frog is pale green with bronze patches that highlight dark spots. It has entirely webbed toes and is set apart from other frogs by the cream markings on its thighs.
Aplastodiscus albosignatus, also known as the Bocaina treefrog, is a species of frog in the family Hylidae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, and rivers. It is threatened by habitat loss.
Pine Barrens tree frogs are rarely encountered in sites where nonnative amphibians, such as bullfrogs, and nonnative fish are present, suggesting that they are poor competitors. As a consequence of this, D. andersonii populations found in or near developed and agricultural areas are believed to be the most at risk due to the greater presence of ...