Population Dynamics of the Long-Tailed Clawed Salamander Larva, Onychodactylus fischeri, and Its Age Structure in Korea
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Larvae of the long-tailed clawed salamander, Onychodactylus fischeri, have a relatively long larval period,spending a year or more within the stream where they hatch; therefore, a well-established larval population could be critical for the conservation of adult populations. To study the population dynamics of long-tailed clawed salamander age of larval clawed salamanders collected from thre diferent populations in October, 204 using skeletochronology. The age of long-tailed clawed salamander larvae ranged from 0 to 3 years. New recruitment of larvae in the population primarily occurred in November, 2005, and mid-March, 2006. Larvae with a snout-vent length of more than 30 mm disappeared from the streams in September, 2005, suggesting that two to thre year-old clawed salamander larvae metamorphosed during this period.
Abstract
Larvae of the long-tailed clawed salamander, Onychodactylus fischeri, have a relatively long larval period,spending a year or more within the stream where they hatch; therefore, a well-established larval population could be critical for the conservation of adult populations. To study the population dynamics of long-tailed clawed salamander age of larval clawed salamanders collected from thre diferent populations in October, 204 using skeletochronology. The age of long-tailed clawed salamander larvae ranged from 0 to 3 years. New recruitment of larvae in the population primarily occurred in November, 2005, and mid-March, 2006. Larvae with a snout-vent length of more than 30 mm disappeared from the streams in September, 2005, suggesting that two to thre year-old clawed salamander larvae metamorphosed during this period.
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