04-02-2011, 10:54 PM
04-02-2011, 11:20 PM
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 Garín, 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.
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 Garín, 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.