The Presence of Micropterus Salmoides (Largemouth Bass) Influences the Populations of Rana Draytonii (California Red-Legged Frog) and Pseudacris Regilla (Pacific Treefrog) in Two Ponds in Santa Barbara County, California

Predation on Native Anurans by Invasive Vertebrates in the Atlantic Rain Forest, Brazil

“…Similarly, the black bass is an opportunistic predator that feeds primarily on other fish (Jackson 2002, Wasserman et al 2011 but that, occasionally, may also include amphibians in their diet (Fuller et al 1999, Froese & Pauly 2016. Predation pressure exerted by M. salmoides over amphibian populations (tadpoles and adults) has been reported for other countries (Hodgson & Hansen 2005, Wasserman et al 2011, and may play a role in the reduction and local extinction of native frog populations, which then results in significant ecological impacts for the ecosystem (Britton et al 2010, Gilliland 2010. We highlight that our record is the first one about predation by M. salmoides over amphibian into the Neotropics.…”

“…It currently occupies fifth place among the most introduced species in inland waters (Welcomme 1992) and is listed as one of the 100 worst invasive alien species (Lowe et al 2000). Ultimately, through cascading effects, introduced M. salmoides may change the water quality (Estes et al 2011) and so indirectly affect amphibian populations (Gilliland 2010). In spite of all of the ecological risks related to M. salmoides and in spite of the fact that it has been introduced into Brazil for over 90 years, there are few studies that really measure its negative impact on Brazilian native communities and allow us to direct efforts at controlling its populations (Ribeiro 2013, Ribeiro et al 2015.…”

Intrinsic Prey Preference and Selection of the Giant Gartersnake: A Threatened Predator in a Nonnative Prey-Dominated Community

“…Nonnative fishes and bullfrogs may potentially harm giant gartersnake populations through indirect means. For example, there is evidence that bullfrog tadpoles (Kupferberg 1997) and nonnative fish (Adams 2000;Gilliland 2010;Pearl et al 2005;Preston et al 2012) have significant detrimental effects on treefrog tadpoles. Extensive stocking of mosquitofish in sampling locations and the overwhelming abundance of other nonnative fish and bullfrogs likely have adverse and perhaps synergistic effects on treefrog tadpole success in the community of the giant gartersnake as well.…”