Effects of tail-clipping on survivorship and growth of larval salamanders
| Autor: | Christopher A. Searcy, Rebecca L. Polich, H. Bradley Shaffer |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Larva
Ecology biology Endangered species Ambystoma californiense Wildlife biology.organism_classification Mesocosm Mark and recapture Survivorship curve General Earth and Planetary Sciences Tiger salamander Ecology Evolution Behavior and Systematics Nature and Landscape Conservation General Environmental Science |
| Zdroj: | The Journal of Wildlife Management. 77:1420-1425 |
| ISSN: | 0022-541X |
| DOI: | 10.1002/jwmg.596 |
| Popis: | Tissue samples used for genetic analyses are increasingly necessary for proper management of rare or endangered species, yet growing evidence suggests that traditional methods used to sample or mark amphibians have detrimental fitness effects. We used a semi-natural mesocosm experiment to determine the effect of larval tail-clipping on growth and survival of the endangered California tiger salamander. Even with relatively extreme levels of tail loss, we found no effect on survival, mass, or snout-vent length. We recommend larval tail-clipping as a low-impact method for collecting tissue samples from pond-breeding amphibians. 2013 The Wildlife Society. elastomer. Field studies performed on living animals sometimes require invasive procedures, generally either to physically mark individuals (e.g., toe-clipping, ear-notching) or to obtain blood or tissue samples for genetic analyses. Criticism for the use of these marking techniques, particularly for amphibians and reptiles, has grown markedly since McCarthy and Parris (2004) showed that recapture rates of frogs decrease by 4- 11% for each toe removed. A similar detrimental effect has |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text