DISSERTATION RESEARCH: The evolution of advertisement calls in the phylogenetic context of other complex phenotypes in poison frogs

论文研究：毒蛙其他复杂表型的系统发育背景中广告叫声的进化

基本信息

批准号：
0710033
负责人：
David Cannatella
金额：
$ 1.19万
依托单位：
University of Texas at Austin
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2007
资助国家：
美国
起止时间：
2007-07-01 至 2009-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0710033&HistoricalAwards=false
关键词：
DISSERTATION RESEARCH evolution advertisement calls

项目摘要

One of the central questions in biology is how diverse traits contribute to the survival and adaptation of species. Poison frogs in the family (Dendrobatidae), many of which are endangered, have an unusual defense against predators: a combination of skin toxins and bright coloration. After experience with the distasteful frog, a visual predator such as a snake or a bird, learns to avoid similar species. This combination of conspicuousness and unpalatability is aposematism. This research investigates behavioral traits, such as mating calls and metabolic rates, which appear to be related to aposematism. The hypothesis is that aposematic species have more conspicuous calls and higher metabolic rates; this allows them to advertise for mates frequently, and to forage for food continuously because they are protected against predators. This hypothesis will be tested by recording advertisement calls and physiological measurements from aposematic and non-aposematic species. The data will be analyzed with comparative methods that infer their evolutionary relationships and possible association based on DNA sequences.This research is broadly significant because it synthesizes many types of evidence (e.g., mating behavior, physiology) to understand the evolution of traits that contribute to species survival. The research is scientifically important because conclusions about these trait interactions are applicable to many other vertebrate and invertebrate species.

生物学中的核心问题之一是各种特征如何促进物种的生存和适应。家族中的毒蛙（Dendrobatidae），其中许多是濒危的，对捕食者具有异常的防御：皮肤毒素和鲜艳的色彩的结合。经过令人反感的青蛙的经验，视觉捕食者（例如蛇或鸟）学会了避免类似的物种。显着性和不可能的这种结合是阶段。这项研究调查了行为特征，例如交配呼叫和代谢率，这似乎与授予有关。假设是，载体物种具有更明显的呼叫和更高的代谢率。这样一来，他们就可以经常为伴侣做广告，并且可以不断地觅食，因为他们受到捕食者的保护。该假设将通过记录广告呼叫和载予式和非副产品物种的生理测量来检验。将使用比较方法对数据进行分析，以推断其进化关系和基于DNA序列的可能关联。这项研究具有广泛的意义，因为它综合了许多类型的证据（例如，交配行为，生理学），以了解有助于物种存活的性状的演变。这项研究在科学上很重要，因为有关这些性状相互作用的结论适用于许多其他脊椎动物和无脊椎动物。