Effects of Toe-Clipping and PIT-Tagging on Growth and Survival in Metamorphic Ambystoma opacum

Ott, Jeannine A.; Scott, David E.

doi:10.2307/1565740

Cited by 74 publications

(44 citation statements)

References 13 publications

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“…baroni from Andringitra as defined by Vences et al [15]. Tissues of many individuals were obtained by toe clipping, a method that is known to allow high survival rates for the released individuals (>98%) [30]. Samples were preserved in 99% ethanol.…”

Section: Methodsmentioning

confidence: 99%

Evidence for recent gene flow between north-eastern and south-eastern Madagascan poison frogs from a phylogeography of the Mantella cowani group

et al. 2007

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Background: The genus Mantella, endemic poison frogs of Madagascar with 16 described species, are known in the field of international pet trade and entered under the CITES control for the last four years. The phylogeny and phylogeography of this genus have been recently subject of study for conservation purposes. Here we report on the studies of the phylogeography of the Mantella cowani group using a fragment of 453 bp of the mitochondrial cytochrome b gene from 195 individuals from 21 localities. This group is represented by five forms: M. cowani, a critically endangered species, a vulnerable species, M. haraldmeieri, and the non-threatened M. baroni, M. aff. baroni, and M. nigricans.

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Section: Methodsmentioning

confidence: 99%

Evidence for recent gene flow between north-eastern and south-eastern Madagascan poison frogs from a phylogeography of the Mantella cowani group

et al. 2007

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“…In general, captured amphibians were sexed, measured (SVL, ±0.5 mm), toe-clipped for identification, and released on the opposite site of the drift fence. Most data reported in this study are from juveniles that were cohort-marked (Ott and Scott 1999) with a year-specific mark as they emigrated from their natal wetlands. Recapture data were used to assess relationships among metamorph traits (SVL and TL), cumulative rainfall immediately following metamorphosis, and adult survival to and mean age at first reproduction in 13 A. opacum and three A. talpoideum cohorts.…”

Section: Mark-recapture Techniquesmentioning

confidence: 99%

Amphibian lipid levels at metamorphosis correlate to post-metamorphic terrestrial survival

et al. 2007

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In organisms that have complex life cycles, factors in the larval environment may affect both larval and adult traits. For amphibians, the postmetamorphic transition from the aquatic environment to terrestrial habitat may be a period of high juvenile mortality. We hypothesized that lipid stores at metamorphosis may affect an animal's success during this critical transition period. We examined variation in total lipid levels among years and sites in recently metamorphosed individuals of two pond-breeding salamander species, the marbled salamander (Ambystoma opacum) and the mole salamander (A. talpoideum), with limited data for one anuran species (southern leopard frog, Rana sphenocephala). Lipid levels were allometrically related to body size and ranged from 1.9 to 23.8% of body dry mass. The two salamander species differed in lipid allocation patterns, with A. opacum apportioning a higher percentage of total lipid reserves into fat bodies than A. talpoideum. Species differences in lipid allocation patterns may primarily reflect that large metamorphs will mature as one-year olds, and, regardless of species, will alter lipid compartmentalization accordingly. We used mark-recapture data obtained at drift fences encircling breeding ponds for 13 A. opacum cohorts to estimate the proportion of postmetamorphic individuals that survived to breed (age 1-4) and the mean age at first reproduction. Regression models indicated that size-corrected lipid level at metamorphosis (i.e., lipid residuals), and to a lesser extent rainfall following metamorphosis, was positively related to adult survival. Snout-vent length at metamorphosis was negatively related to age at first reproduction. We suggest that lipid stores at metamorphosis are vital to juvenile survival in the months following the transition from aquatic to terrestrial habitat, and that a trade-off shaped by postmetamorphic selection in the terrestrial habitat exists between allocation to energy stores versus structural growth in the larval environment.

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“…For example, visible implant elastomers (Lampert and Linsenmair, 2002), passive integrated transponder (PIT) tags (Ott and Scott, 1999;Gibbons and Andrews, 2004), and transponder attachments (Langkilde and Alford, 2002) have been used successfully to mark frogs and salamanders. In addition, in many studies, alternative marking techniques are commonly used in conjunction with, not instead of, toe clipping as a back-up for mark loss or to validate a marking technique.…”

Section: Discussionmentioning

confidence: 99%

Putting Toe Clipping into Perspective: A Viable Method for Marking Anurans

Grafe¹,

Stewart²,

Lampert³

et al. 2011

Journal of Herpetology

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Effects of Toe-Clipping and PIT-Tagging on Growth and Survival in Metamorphic Ambystoma opacum

Cited by 74 publications

References 13 publications

Evidence for recent gene flow between north-eastern and south-eastern Madagascan poison frogs from a phylogeography of the Mantella cowani group

Evidence for recent gene flow between north-eastern and south-eastern Madagascan poison frogs from a phylogeography of the Mantella cowani group

Amphibian lipid levels at metamorphosis correlate to post-metamorphic terrestrial survival

Putting Toe Clipping into Perspective: A Viable Method for Marking Anurans

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