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Serving the Dart Frog Community Since 2004...

African Clawed Frogs in California ? Yep
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African Clawed Frogs in California ? Yep
#1
Been there for at least 25 years, think.

http://nas.er.usgs.gov/queries/FactShee ... eciesID=67
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"Time flies like an arrow, fruit flies like a banana".
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#2
And along with non-native bullfrogs, have caused great damage to native ecosystems, and native frogs, fish and macroinvertebrate populations.

An interesting note from the linked page:

"In Africa and Chile, X. laevis often migrates over land in swarms containing hundreds or thousands of individuals (Tinsley yet al., 1996; Channing, 2001; Lobos and Jaksic, 2005). Some of these mass migrations are stimulated by droughts (Tinsley et al., 1996; Tinsley and McCoid, 1996; Channing, 2001; Lobos and Jaksic, 2005). Nocturnal overland excursions may be quite common (Tinsley et al., 1996; Lobos and GarĂ­n, 2002). In Chile they are spreading at a rate of 3.1-3.9 km/year through both overland migration and the use of irrigation canals in agricultural areas (Lobos and Jaksic, 2005)."

Scary stuff from an ecological standpoint.
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