Effects of Slash Pine Silviculture on a Florida Population of Flatwoods Salamander

摘要: The largest known breeding migration of the flatwoods salamander (Ambystoma cingulatum) was monitored over a 22-year period following its discovery in 1970 Liberty County, Florida (U.S.A.). Nightly migrations 200–300 adults across 4.3-km stretch paved highway 1970–1972 had dwindled to less than one individual per night 1990–1992; decline apparently already underway 1980s. We discuss possible natural and anthropogenic causes decline. silvicultural practice converting native longleaf pine savanna bedded slash plantation, implemented on our study site about 1968, may have interfered with migration, successful hatching, larval life, feeding, finding suitable cover post-metamorphosis. Longleaf pine-wiregrass inhabited by been drastically reduced severely degraded throughout coastal plain explain why species is rare deserving threatened status. La mas grande migracion de crias conocida la salamandra “flatwoods” se seguio muy cerca durante un plazo 22 anos despues su descrubrimiento en el condado Liberty, Florida. Las migraciones nocturnas adultos traves tramo 4.3 kilometros carretera pavimentada habian disminuido menos individuo por noche 1990–1992. Segun parece, disminucion ya estaba marcha los 1980. Deliberamos sobre posibles causas naturales y antropogenicas esta disminucion. La practica convertir sabana pinos “longleaf” autoctonos plantio “slash” plantados efectuo nuestro sitio estudio 1968. Es posible que haya afectado migracion, salida cascaron etapa salamandra, asi como alimentacion habilidad encontrar donde rirse metamorfosis. Se han reducido forma drastica visto afectados bosques pino pasto alambre viven adultos. Estas hechos sirven explicacion porque especie es rara merece una clasificacion amenazada.