Andrews R H, Petney T N, Bull C M
School of Biological Sciences, Flinders University of South Australia, 5042, Bedford Park, SA, Australia.
Oecologia. 1982 Oct;55(1):77-80. doi: 10.1007/BF00386721.
Two Australian tick species Aponomma hydrosauri and Amblyomma albolimbatum have the same major host species, the lizard Trachydosaurus rugosus. While females of Amb. albolimbatum are most often attached in the ears and on the neck of their hosts, Ap. hydrosauri females prefer to attach further back, under the forearms and on the back. Males show the same interspecific difference but there is also a difference between populations. Ap. hydrosauri males from populations in contact with Amb. albolimbatum attach more often in posterior positions than Ap. hydrosauri males from populations isolated from Amb. albolimbatum. These differences were found in both field populations and laboratory reared ticks. Phylogenetic evidence suggests that the change in male attachment site between Ap. hydrosauri populations followed the colonization of T. rugosus. We propose that the most likely reason for the change of attachment sites has been interspecific interactions with Amb. albolimbatum and that competition has been for space for efficient reception of female signals.
两种澳大利亚蜱虫物种——饰纹钝缘蜱（Aponomma hydrosauri）和白边花蜱（Amblyomma albolimbatum）具有相同的主要宿主物种，即髯蜥（Trachydosaurus rugosus）。虽然白边花蜱的雌性大多附着在宿主的耳朵和颈部，但饰纹钝缘蜱的雌性更喜欢附着在更靠后的位置，如前臂下方和背部。雄性也表现出相同的种间差异，但不同种群之间也存在差异。与白边花蜱接触的饰纹钝缘蜱种群中的雄性比与白边花蜱隔离的饰纹钝缘蜱种群中的雄性更常附着在后部位置。这些差异在野外种群和实验室饲养的蜱虫中都有发现。系统发育证据表明，饰纹钝缘蜱种群之间雄性附着部位的变化是随着髯蜥的定殖而发生的。我们认为，附着部位变化最可能的原因是与白边花蜱的种间相互作用，并且竞争的是有效接收雌性信号的空间。
