Investigation of the geographic origin of burrowing owl fleas with implications for the ecology of plague
Investigation of the geographic origin of burrowing owl fleas with implications for the ecology of plague
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穴居猫头鹰跳蚤地理起源的调查及其对鼠疫生态学的影响
DOI：
10.1093/auk/uky011
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Belthoff, James R
中科院分区：
文献类型：
--
作者：
Navock, Kara A;Johnson, David H;Evans, Samantha;Kohn, Matthew J;Belthoff, James R
为了了解迁徙的穴居猫头鹰将跳蚤从越冬地转移到繁殖地的程度，研究了西方穴居猫头鹰(Athene Cunceraria Hypugaea)与它们所藏匿的跳蚤(Pulex ishians，Sipoaptera：Pulicidae)之间的宿主-寄生虫关系。这对穴居猫头鹰的宿主-寄生虫关系有影响，也可能对鼠疫的动态产生影响，因为穴居猫头鹰的分布与鼠疫疫源地重叠，猫头鹰栖息在发生鼠疫流行的化石哺乳动物群体中，猫头鹰可能藏匿有能力传播鼠疫的跳蚤物种。我们使用氢稳定同位素分析来帮助阐明从美国爱达荷州和俄勒冈州两个迁徙种群的洞穴猫头鹰的成体和雏鸟身上采集的跳蚤的地理来源。对于成虫，我们假设鸟类介导的传播将传递代表南纬的跳蚤同位素组成，类似于最近在越冬地生长的猫头鹰脚趾甲组织，但它们将不同于前一年可能在繁殖地生长的轮廓羽毛。我们假设雏鸟的羽毛和脚趾甲会有代表繁殖地的同位素组成。我们分析了春季迁徙后到达繁殖地不久的成虫和繁殖季节后期雏鸟的轮廓羽毛和脚趾甲，并将从这两个年龄段的个体收集的跳蚤的同位素组成进行了比较。两个种群雏体上的蚤类具有与羽毛和脚趾甲相同的同位素组成，这表明雏蚤有繁殖地的起源。在一个种群(俄勒冈州)，成虫身上的跳蚤具有繁殖场地的同位素特征，因为跳蚤的组成与筑巢的羽毛或脚趾甲没有什么不同。爱达荷州的成年猫头鹰身上的跳蚤同样没有表现出越冬的地面特征，但相对于筑巢的羽毛和脚趾甲，它们富含重同位素(重氢)。因此，我们讨论了爱达荷州成年猫头鹰在迁徙中途停留地点获取跳蚤的可能性。虽然后者表明穴居猫头鹰具有驱散跳蚤的潜力，但没有证据表明猫头鹰将整个大陆的跳蚤从越冬地迁移到繁殖地。
Host-parasite relationships between Western Burrowing Owls (Athene cunicularia hypugaea) and the fleas (Pulex irritans,Siphonaptera:Pulicidae) they harbor were studied to understand the extent to which migratory Burrowing Owls translocated fleas from wintering grounds to breeding grounds. This has implications for host-parasite relationships in Burrowing Owls and also potentially for the dynamics of plague, as Burrowing Owl distributions overlap plague foci, owls inhabit fossorial mammal colonies where epizootic outbreaks of plague occur, and owls may harbor species of flea that are competent plague vectors. We used hydrogen stable isotope analysis to help elucidate geographic origins of fleas collected from adults and nestlings in 2 migratory populations of Burrowing Owls in Idaho and Oregon, USA. For adults, we posited that bird-mediated dispersal would impart flea isotopic compositions representative of southern latitudes and be similar to owl toenail tissue recently grown on wintering grounds, but they would differ from contour feathers presumably grown on breeding grounds the previous year. We assumed nestling feathers and toenails would have isotopic compositions representative of the breeding grounds. We analyzed contour feathers and toenails from adults collected shortly after they arrived in breeding grounds following spring migration and from nestlings later in the breeding season, to which we compared isotopic compositions in fleas collected from individuals of both age classes. Fleas on nestlings in both populations had isotopic compositions that did not differ from nestling feathers and toenails, suggesting that nestling fleas had breeding ground origins. Fleas on adults in one population (Oregon) had breeding ground isotopic signatures, as flea compositions did not differ from nestling feathers or toenails. Adult owls in Idaho had fleas that similarly did not express a wintering ground signature, but they were enriched in the heavy isotope (deuterium) relative to nestling feathers and toenails. Therefore, we discuss the possibility that adult owls in Idaho acquired fleas at migratory stopover sites. While the latter indicates that Burrowing Owls have the potential to disperse fleas, there was no evidence of continent-wide movement of fleas by owls from wintering grounds to breeding grounds.
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影响因子：
5.8
作者：
S. Sheppard;R. Nielsen;H. Taylor
通讯作者：
S. Sheppard;R. Nielsen;H. Taylor
太平洋西北地区的跳蚤
DOI：
10.2307/3282906
发表时间：
1988
期刊：
Journal of vector ecology : journal of the Society for Vector Ecology
影响因子：
--
作者：
R. Lewis;J. Lewis;C. Maser
通讯作者：
C. Maser
筑巢成功率和交配忠诚度对穴居猫头鹰繁殖扩散的影响
影响因子：
1.4
作者：
D. Catlin;D. K. Rosenberg;K. L. Haley
通讯作者：
K. L. Haley
北美西部穴居猫头鹰羽毛氢同位素比率的空间模式
影响因子：
1.7
作者：
A. Macías;C. Conway
通讯作者：
C. Conway
角质材料中的稳定氢同位素异质性：质谱分析和迁徙野生动物组织二次采样策略。
DOI：
10.1002/rcm.2626
发表时间：
2006
期刊：
Rapid communications in mass spectrometry : RCM
影响因子：
--
作者：
L. Wassenaar;K. Hobson
通讯作者：
K. Hobson