Lindsay L R, Galloway T D
Department of Entomology, University of Manitoba, Winnipeg, Canada.
J Med Entomol. 1998 Jul;35(4):423-30. doi: 10.1093/jmedent/35.4.423.
To test the hypothesis that oogenesis in 4 species of fleas is dependent on the reproductive cycle of their monoestrous host Spermophilus richardsonii, 6,416 Oropsylla (Oropsylla) rupestris (Baker), 5,893 Oropsylla (Opisocrostis) bruneri (Baker), 813 Neopsylla inopina (Rothschild), and 223 Rhadinopsylla (Actenophthalmus) fraterna (Baker) females were collected from active hosts at 3 locations in Manitoba during 1987, 1988, and 1989 and dissected. Based on morphological changes in the ovaries, female fleas were categorized as immature, nulliparous or parous. Nulliparous N. inopina predominated in April and early May. Immature and nulliparous O. bruneri predominated throughout April and May. Nulliparous O. rupestris were most prevalent in early June but occurred sporadically throughout the season. Nulliparous R. fraterna predominated only in April. The percentage of mated females was usually correlated with percentage parity for all species. Oogenesis in each of the 4 flea species was apparently independent of the reproductive cycle of their host. Female fleas of all reproductive categories were frequently collected before, during, and following reproduction in their hosts.
为了验证4种跳蚤的卵子发生取决于其单动情宿主理查森黄鼠的繁殖周期这一假说，1987年、1988年和1989年期间，在曼尼托巴省的3个地点从活跃的宿主身上采集了6416只岩栖山蚤（Oropsylla (Oropsylla) rupestris (Baker)）、5893只布鲁纳山蚤（Oropsylla (Opisocrostis) bruneri (Baker)）、813只奇异新蚤（Neopsylla inopina (Rothschild)）和223只友伴鬃眼蚤（Rhadinopsylla (Actenophthalmus) fraterna (Baker)）的雌性跳蚤，并进行解剖。根据卵巢的形态变化，将雌性跳蚤分为未成熟、未产卵或已产卵。未产卵的奇异新蚤在4月和5月初占主导。未成熟和未产卵的布鲁纳山蚤在整个4月和5月占主导。未产卵的岩栖山蚤在6月初最为普遍，但在整个季节中零星出现。未产卵的友伴鬃眼蚤仅在4月占主导。所有物种中，交配雌性的百分比通常与产卵百分比相关。这4种跳蚤的卵子发生显然与其宿主的繁殖周期无关。在宿主繁殖之前、期间和之后，经常能采集到所有生殖类别的雌性跳蚤。
