TABLE 4 in Lost in time: Unraveling the identity of Vitreorana parvula (Boulenger, 1895) (Anura: Centrolenidae)
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TABLE 4. Loadings of morphometric variables of PCAs of the parameters of call. The highest and lowest loading values are marked in bold. %IQR = percentage of call duration where more than 50% of call energy is concentrated; AE = average entropy; BW = bandwidth; CAP = call amplitude peak; CD = call duration; CenF = center frequency; CF = call fall; CR = call rise; DF = dominant frequency; IQR = value where more than 50% of call energy is concentrated; MaxF = maximum frequency; MinF = minimum frequency; N° pulses = number of pulses; N° harmonics = number of harmonics; PPR = pulse repetition rate.
VariablePC1PC2CD0.000.02CR0.000.01CF0.000.02CAP0.000.02IQR0.000.01%IQR0.000.02N° pulses0.000.00PRR-0.010.03N° harmonics0.000.00DF-0.500.02MinF-0.47-0.47MaxF-0.530.34BW-0.050.81CenF-0.50-0.02AE0.000.00Eigenvalue9200.2385.94Variance (%)97.90.9Accumulative variance (%)97.998.8
表4. 鸣声参数主成分分析(PCA)的形态计量变量载荷值。将载荷值中的最大值与最小值以粗体标注。
各变量缩写及含义如下:
1. %IQR:超过50%鸣声能量集中的时段占鸣声总时长的百分比;
2. 平均熵(AE, average entropy);
3. 带宽(BW, bandwidth);
4. 鸣声振幅峰值(CAP, call amplitude peak);
5. 鸣声时长(CD, call duration);
6. 中心频率(CenF, center frequency);
7. 鸣声频降(CF, call fall);
8. 鸣声频升(CR, call rise);
9. 主频(DF, dominant frequency);
10. IQR:超过50%鸣声能量集中的数值;
11. 最大频率(MaxF, maximum frequency);
12. 最小频率(MinF, minimum frequency);
13. 脉冲数(N° pulses, number of pulses);
14. 谐波数(N° harmonics, number of harmonics);
15. 脉冲重复率(PPR, pulse repetition rate,表格中记为PRR)。
载荷值表格如下:
| 变量 | PC1 | PC2 |
|--------------------------|---------|---------|
| 鸣声时长(CD) | 0.00 | 0.02 |
| 鸣声频升(CR) | 0.00 | 0.01 |
| 鸣声频降(CF) | 0.00 | 0.02 |
| 鸣声振幅峰值(CAP) | 0.00 | 0.02 |
| IQR | 0.00 | 0.01 |
| %IQR | 0.00 | 0.02 |
| 脉冲数(N° pulses) | 0.00 | 0.00 |
| 脉冲重复率(PRR) | -0.01 | 0.03 |
| 谐波数(N° harmonics) | 0.00 | 0.00 |
| 主频(DF) | -0.50 | 0.02 |
| 最小频率(MinF) | -0.47 | -0.47 |
| 最大频率(MaxF) | -0.53 | 0.34 |
| 带宽(BW) | -0.05 | 0.81 |
| 中心频率(CenF) | -0.50 | -0.02 |
| 平均熵(AE) | 0.00 | 0.00 |
| 特征值 | 9200.23 | 85.94 |
| 方差占比(%) | 97.9 | 0.9 |
| 累积方差占比(%) | 97.9 | 98.8 |
创建时间:
2025-04-05



