We suggest that pair formation in our study population most likely was opportunistic, with individuals pairing with the first available mate [Acta Zoologica Sinica 50 (4): 527 - 534, 2004].

• 结果表明，所研究的种群中的配对是机会主义式的，个体与第一个能得到的配偶形成配对关系[动物学报 50（4）：527 - 534，2004]。