...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>BMC Ecology >Effects of forest structure on the interaction between avian hosts, dipteran vectors and haemosporidian parasites
【24h】

Effects of forest structure on the interaction between avian hosts, dipteran vectors and haemosporidian parasites

机译：森林结构对禽宿主，Dipteran载体和血清腺寄生虫相互作用的影响

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Forest habitats are important biodiversity refuges for a wide variety of bird species. Parasitism may modulate host species presence and abundance, and parasite effects can change according to forest management practices. Such processes are not well studied in vector-borne avian haemosporidians. We analyzed the effects of forest management on bird-dipteran-haemosporidian interactions, using seven common bird species in managed and unmanaged beech forest habitats in northeastern Germany. We assumed that forest structural heterogeneity affects parasite population parameters in avian hosts (i.e., prevalence and parasitemia), through its effect on the condition of the avian host but also through varying vector abundances. Parasite prevalence was high (about 80%) and homogeneous across different beech forest categories (i.e., young, old, unmanaged) and for all bird species, except Erithacus rubecula (35%). Parasitemia varied across bird species but not across forest categories within each avian species (lowest parasitemia were found in E. rubecula, Turdus merula, and Turdus philomelos). In our study system, we found that vector abundance was not the main driver of parasite dynamics. We found that forest structure affects parasite infection probability directly and potentially host condition via available resources that have to be used either to combat infections (i.e., high parasitemia) or to maintain a good body condition. The effects of each of the predictors were bird species-specific, and we found that Diptera vectors were not the foremost influence in our host-vector-parasite system. Effects of forest habitat variables indicated that for most bird species in this study, habitat regulation of infection probability was more likely (i.e., E. rubecula, Fringilla coelebs, Sylvia atricapilla), whereas for Parus major habitat characteristics impacted first individuals' body condition and subsequently the probability of infection. Our findings emphasize the need of species-specific analyses and to use continuous forest structural parameters (e.g., the proportion of gap, south facing aspect) to better understand habitat and land use effects on host-vector-parasite dynamics.
机译：森林栖息地是各种各样的鸟类的重要生物多样性难民。寄生派可以调节宿主物种的存在和丰度，并且寄生虫效应可以根据森林管理实践而改变。这些过程在载体传播的禽血管人中没有很好地研究过。我们分析了森林管理对德国管理和非囚士山毛榉森林栖息地的七种常见鸟类对鸟类管理的影响。我们认为，森林结构异质性通过其对禽主持人的状况的影响影响禽宿主（即患病率和寄生虫血症）中的寄生虫种群参数，而且通过不同的传染媒介丰富。寄生虫患病率高（约80％），跨不同山毛榉林类别（即，年轻，老，非托管）和所有鸟类，除了伊斯泰迦鲁布拉（35％）。寄生虫血症在鸟类中变化，但在每种禽类中的森林类别（最低寄生血症中，在E. Rubecula，Turdus Merula和Turdus Philomelos）中没有）。在我们的研究系统中，我们发现矢量丰富不是寄生虫动态的主要驱动因素。我们发现森林结构通过可用的资源直接影响寄生虫感染概率，并通过可用于对抗感染（即，高寄生虫）或保持良好的身体状况。每个预测因子的效果是鸟类特异性，我们发现Diptera载体不是我们的宿主载体寄生体系中最重要的影响。森林栖息地变量的影响表明，对于大多数鸟类在本研究中，栖息地调节感染概率更可能（即，E. Rubecula，Fringilla Coelebs，Sylvia atricapilla），而对于Parus主要栖息地特征影响了第一个人的身体状况和随后是感染的概率。我们的研究结果强调了物种特异性分析，并使用连续森林结构参数（例如，差距，南方面对方面的比例）以更好地了解栖息地和土地利用对宿主 - 载体寄生虫动态的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号