| Autor: | Charles T. Hanifin, Mari Yotsu-Yamashita, Takeshi Yasumoto, Edmund D. Brodie, III, Edmund D. Brodie, Jr. |
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| Rok vydání: | 1999 |
| Předmět: |
Entomology
biology Ecology musculoskeletal neural and ocular physiology Zoology General Medicine biology.organism_classification Biochemistry Predation chemistry.chemical_compound Evolutionary arms race nervous system chemistry Toxicity Taricha Tetrodotoxin heterocyclic compounds Ecology Evolution Behavior and Systematics Coevolution Caudata |
| Zdroj: | Journal of Chemical Ecology. 25:2161-2175 |
| ISSN: | 0098-0331 |
| DOI: | 10.1023/a:1021049125805 |
| Popis: | The ability to identify and accurately measure traits at the phenotypic interface of potential coevolutionary interactions is critical in documenting reciprocal evolutionary change between species. We quantify the defensive chemical trait of a prey species, the newt Taricha granulosa, thought to be part of a coevolutionary arms race. Variation in newt toxicity among populations results from variation in levels of the neurotoxin tetrodotoxin (TTX). Individual variation in TTX levels occurs within populations. Although TTX exists as a family of stereoisomers, only two of these (TTX and 6-epi-TTX) are likely to be sufficiently toxic and abundant to play a role in the defensive ecology of the newt. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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