Premium
Non‐native species impacts on pond occupancy by an anuran
Author(s) -
Adams Michael J.,
Pearl Christopher A.,
Galvan Stephanie,
Mccreary Brome
Publication year - 2011
Publication title -
the journal of wildlife management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.94
H-Index - 111
eISSN - 1937-2817
pISSN - 0022-541X
DOI - 10.1002/jwmg.29
Subject(s) - lithobates , occupancy , habitat , riparian zone , ecology , extinction (optical mineralogy) , local extinction , wildlife , vegetation (pathology) , introduced species , geography , wetland , invasive species , riparian forest , biology , amphibian , biological dispersal , medicine , paleontology , population , demography , pathology , sociology
Non‐native fish and bullfrogs ( Lithobates catesbeianus ) are frequently cited as contributing to the decline of ranid frogs in the western United States, so we hypothesized that non‐native species, habitat, or a combination of these relate to the probability of local extinction for northern red‐legged frogs ( Rana aurora ) in Oregon, USA. We also hypothesized that the probability of colonization relates to land use, wetland size, or riparian forest. In a 5‐yr study, we found no support for an effect of non‐native species on northern red‐legged frogs. Instead, probability of local extinction decreased with the extent of emergent vegetation and riparian forest. This finding suggests that managers consider the role of habitat when confronting non‐native species problems. © 2010 The Wildlife Society.