Life History as a Predictor of Salamander Recovery Rate from Timber Harvest in Southern Appalachian Forests, U.S.A

作者: GRANT M. CONNETTE , RAYMOND D. SEMLITSCH

DOI: 10.1111/COBI.12113

关键词:

摘要: Forest management often represents a balance between social, economic, and ecological objectives. In the eastern United States, numerous studies have established that terrestrial salamander populations initially decline in abundance following timber harvest, yet large-scale long-term consequences are relatively unknown. We used count data from survey points to examine relation historic harvest while accounting for imperfect detection of individuals. Overall, stream- terrestrial-breeding salamanders appeared differ by magnitude population decline, rate recovery, extent recolonization surrounding forest. Specifically, estimated both species groups was positively associated with stand age recovery rates were predicted increase over time red-legged (Plethodon shermani) decrease stream-breeding species. Abundance reach peak 100 years after growth undergo significant harvest. Estimated young forest stands also negatively distance adjacent forest, result suggests immigration has role these Our results indicate may be only modestly lower than more mature but full take substantial amount life history affect patterns recovery. Historia de Vida como un Vaticinador la Tasa Recuperacion una Salamandra Colecta Madera en los Bosques del Sur Apalaches, E.U.A Resumen El manejo bosques menudo representa entre objetivos sociales, economicos y ecologicos. En parte occidental Estados Unidos numerosos estudios han establecido que las poblaciones salamandras terrestres inicialmente declinan abundancia siguiendo colecta madera, aunque consecuencias gran escala largo plazo son relativamente desconocidas. Usamos datos conteo puntos sondeo para examinar relacion historica madera respondiendo vez detecciones imperfectas individuos. general, con crianza terrestre arroyos parecian diferir por magnitud declinacion poblacion, tasa recuperacion poblacion extension recolonizacion partir vecinos. Especificamente, estimada grupos ambas especies fue positivamente asociado edad arboles se predijo tasas incrementarian el tiempo patas rojas disminuirian criadas arroyos. Se alcanzaria pico anos despues crecimiento poblacional salamandra sufriria incremento significativo colecta. La flujo cria pequenos rodales forestales tambien asocio negativamente distancia al bosque adyacente resultado sugiere inmigracion tiene papel estas especies. Nuestros resultados indican jovenes puede ser solamente modestamente mas baja maduros pero total tomar cantidad sustancial historia vida afectar patrones recuperacion.

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