Canaris Albert G, Ortiz Rafael, Canaris Gay J
Section of General Internal Medicine, 985185 Nebraska Medical Center, Omaha, Nebraska 68198-5185, USA.
J Parasitol. 2010 Dec;96(6):1060-5. doi: 10.1645/GE-2503.1. Epub 2010 Jul 28.
Eighty-eight long-billed dowitchers, Limnodromus scolopaceus, were examined for helminth parasites, 62 from Texas and 26 from Mexico. In total, 3,558 helminth parasites were obtained from this host, 2,273 from Texas birds and 1,285 from birds from Mexico. The component communities consisted of 22 species of helminths in Texas, and 19 in Mexico. Of a total of 26 helminth species recorded from the 2 localities, 15 were common to both, 7 found only in Texas, and 4 only in Mexico. Fifty-nine of 62 Texas birds and 25 of 26 birds from Mexico were infected. The most prevalent helminth for Texas was the cestode Shipleya inermis. The cestode Aploparaksis retroversa was the most abundant, accounting for 37% of the total abundance, and was second highest in prevalence. Five species of cestodes, A. retroversa, Aploparaksis diagonalis, Aploparaksis occidentalis, Aploparaksis rissae, and Shipleya inermis accounted for 79% of total abundance. In the sample from Mexico, S. inermis was also highest in prevalence, followed by the nematode Hystrichis tricolor. The cestode A. retroversa was highest in abundance at 50% of the total, and was third highest in prevalence. Mean species richness, diversity, and evenness were similar among the component communities of Texas and Mexico. A predictable suite of aploparaksid cestodes, together with the cestode S. inermis, constituted 79%, and 61%, of total abundance for the component communities of Texas and Mexico, respectively, and were present in all component communities for locality, season, and year. The cestodes, A. retroversa and S. inermis, were the dominant species in all component communities. Differences among component communities and low similarities for all other comparisons were largely caused by less predictable suites of helminth species. A checklist of helminth parasites reported for long-billed dowitchers is included.
对88只长嘴半蹼鹬（Limnodromus scolopaceus）进行了寄生虫检查，其中62只来自得克萨斯州，26只来自墨西哥。总共从这些宿主身上获得了3558条寄生虫，2273条来自得克萨斯州的鸟类，1285条来自墨西哥的鸟类。得克萨斯州的寄生虫群落由22种寄生虫组成，墨西哥的有19种。在这两个地区记录的总共26种寄生虫中，15种在两地都有，7种仅在得克萨斯州发现，4种仅在墨西哥发现。62只来自得克萨斯州的鸟中有59只被感染，26只来自墨西哥的鸟中有25只被感染。在得克萨斯州最常见的寄生虫是绦虫无刺希氏绦虫（Shipleya inermis）。绦虫反转阿普洛绦虫（Aploparaksis retroversa）数量最多，占总数量的37%，在感染率上排第二。5种绦虫，即反转阿普洛绦虫、对角阿普洛绦虫（Aploparaksis diagonalis）、西方阿普洛绦虫（Aploparaksis occidentalis）、里萨阿普洛绦虫（Aploparaksis rissae）和无刺希氏绦虫，占总数量的79%。在来自墨西哥的样本中，无刺希氏绦虫感染率也最高，其次是线虫三色多棘线虫（Hystrichis tricolor）。绦虫反转阿普洛绦虫数量最多，占总数的50%，在感染率上排第三。得克萨斯州和墨西哥的寄生虫群落的平均物种丰富度、多样性和均匀度相似。一组可预测的阿普洛绦虫属绦虫，加上无刺希氏绦虫，分别占得克萨斯州和墨西哥寄生虫群落总数量的79%和61%，并且在不同地点、季节和年份的所有寄生虫群落中都存在。绦虫反转阿普洛绦虫和无刺希氏绦虫是所有寄生虫群落中的优势物种。寄生虫群落之间的差异以及所有其他比较中的低相似性主要是由较难预测的寄生虫物种组合造成的。文中还列出了长嘴半蹼鹬的寄生虫清单。
