Intraspecific relationships between resting and activity metabolism in anuran amphibians:: Influence of ecology and behavior
Intraspecific relationships between resting and activity metabolism in anuran amphibians:: Influence of ecology and behavior
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DOI：
10.1086/381471
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发表时间：
2004-03-01
影响因子：
1.6
通讯作者：
Navas, CA
中科院分区：
文献类型：
--
作者：
Gomes, FR;Chauí-Berlinck, JG;Navas, CA
有氧能力模型，以及其他关于有氧代谢进化和恒温起源的模型，要求静止和活动耗氧量之间的机制联系((V) / dotO（2rest）和（V) / dotO(2 act)）。这种联系的存在仍然存在争议，但对无脊椎两栖动物的研究支持(V) over dotO（2 rest）和(V) over dotO（2 act）在种内和种间水平上的相关性。由于种内水平的结果仅基于少数物种，因此我们通过研究anurans中质量无关的(V) over dotO（2 rest）和(V) over dotO（2 act）之间的种内相关模式来测试anurans中这两个代谢变量之间联系的普遍性。我们研究了21种来自不同地理区域的新热带物种，这些物种在行为和热生态方面具有显著的多样性。虽然不相关，但(V) / dotO（2 rest）和(V) / dotO（2 act）在个体之间似乎是一致的。结果表明，(V) over dotO（2 rest）与(V) over dotO（2 act）之间的种内关系可能存在很大差异。这三种可能的趋势（正相关、负相关和不相关）被观察到，并且似乎可以从与无尾动物进化生理变化相关的生态和行为变量中预测出来。(V) over dotO（2 rest）和(V) over dotO（2 act）之间的正相关在生活方式活跃的物种（例如，强烈的声音活动）和在低温下鸣叫的物种（例如，冬季或高海拔专家）中更为常见。
The aerobic capacity model, as well as other models for the evolution of aerobic metabolism and the origin of endothermy, requires a mechanistic link between rates of resting and activity oxygen consumption ((V) over dotO(2rest) and (V) over dotO(2 act)). The existence of such link is still controversial, but studies with anuran amphibians support a correlation between (V) over dotO(2 rest) and (V) over dotO(2 act) at both the intraspecific and interspecific levels. Because results at the intraspecific level are based only on a few species, we test for the generality of a link between these two metabolic variables in anurans by studying the intraspecific correlational patterns between mass-independent (V) over dotO(2 rest) and (V) over dotO(2 act) in anurans. We focus on 21 Neotroptical species from different geographical areas that include remarkable diversity in behavior and thermal ecology. Although uncorrelated, (V) over dotO(2 rest) and (V) over dotO(2 act) seem to be consistent among individuals. Diverse intraspecific phenotypic correlational trends were detected, indicating that the intraspecific relationships between (V) over dotO(2 rest) and (V) over dotO(2 act) might be very diverse in anurans. The three possible trends (positive, negative, and absent correlations) were observed and appeared to be predictable from ecological and behavioral variables that relate to evolutionary physiological shifts in anurans. Positive correlations between (V) over dotO(2 rest) and (V) over dotO(2 act) were more common in species with active lifestyles (e.g., intense vocal activity) and in species that call at low temperatures (e.g., winter or high-elevation specialists).