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Closed ecological systems or contained ecological systems (CES) are ecosystems that do not rely on matter exchange with any part outside the system. The term is most often used to describe small, man-made ecosystems. Such systems can potentially serve as a life-support system or space habitats. [1]
Lepidobatrachus laevis, widely known as Budgett's frog, is a species of frog in the family Ceratophryidae, discovered by John Samuel Budgett. [2] It is often kept as a pet . It has acquired a number of popular nicknames, including hippo frog , [ 3 ] Freddy Krueger frog , [ 3 ] and escuerzo de agua .
The Frog Otolith Experiment Package (FOEP) contains all the apparatus necessary to ensure the survival of two frogs. Specimens are housed in a water-filled, self-contained centrifuge which supplies the test acceleration during orbit. Frogs are demotorized to prevent dislodging of implanted electrodes and to reduce their metabolic rate. [8]
Leptodactylus fallax, commonly known as the mountain chicken or giant ditch frog, is a critically endangered species of frog that is native to the Caribbean islands of Dominica and Montserrat. The population declined by at least 80% from 1995 to 2004, [ 2 ] [ 3 ] with further significant declines later.
Breviceps fuscus is a burrowing frog, and can be found in tunnels up to 150 mm deep or among vegetation up to about 30 cm above the ground, and it generally prefers to avoid water. [3] The frog generally spends most of its time underground as it does not require open water and is primarily nocturnal . [ 9 ]
A Cuban tree frog explored in Lake Worth, Florida in 2010. According to the University of Florida, the frogs are an invasive species.
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The African bullfrog (Pyxicephalus adspersus), also known as the giant bullfrog or the South African burrowing frog, is a species of frog in the family Pyxicephalidae.