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REPRODUCTION AND AGE COMPOSITION OF A POPULATION OF WOODLAND SALAMANDERS (PLETHODON ALBAGULA) AFTER A PRESCRIBED BURN IN SOUTHWESTERN ARKANSAS

Joseph R. Milanovich, Stanley E. Trauth and David A. Saugey
The Southwestern Naturalist
Vol. 56, No. 2 (JUNE 2011), pp. 172-179
Stable URL: http://www.jstor.org/stable/23028163
Page Count: 8
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
REPRODUCTION AND AGE COMPOSITION OF A POPULATION OF WOODLAND SALAMANDERS (PLETHODON ALBAGULA) AFTER A PRESCRIBED BURN IN SOUTHWESTERN ARKANSAS
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Abstract

We studied a population of Plethodon albagula inhabiting an abandoned mine in Garland County, Arkansas, to test whether variables such as fecundity, diameter of egg, total number of eggs produced, and total number of clutches were influenced by precipitation or prescribed burning. We also compared ratios of juveniles to adults during summer, a period when P. albagula sought refuge in the mine, to determine if prescribed burning influenced certain life stages more than others. Comparing years before and after burning and accounting for the influence of precipitation, we did not detect a significant effect of the prescribed burn on any reproductive variable. However, we did discover a decline in some reproductive variables 1.5 years post-burning. There also was no decline in the ratio of juveniles to adults before or after the burn. Prescribed burning in the inactive season did not affect reproduction or age composition of the population of P. albagula. Estudiamos una población de Plethodon albagula que ocupa una mina abandonada en el condado de Garland, Arkansas, para probar si variables como la fecundidad, el diámetro del huevo, el número total de huevos producidos, y el número total de puestas fueron influenciados por la precipitación o por la quema prescrita. También comparamos las proporciones de jóvenes a adultos durante el verano, un período cuando P. albagula busca refugio en la mina, para determinar si la quema prescrita afecta a ciertas etapas de la vida más que a otras. Comparando los años antes de y después de la quema, y teniendo en cuenta la influencia de la precipitación, no encontramos un efecto significativo de la quema prescrita en ninguna variable reproductiva. Sin embargo, encontramos que algunas variables reproductivas disminuyeron 1.5 años después de la quema. Tampoco hubo ninguna declinación de la proporción de jóvenes a adultos antes o después de la quema. La quema prescrita durante la estación inactiva no afectó la reproducción ni la composición de edades de la población de P. albagula.

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