Host food quality and quantity differentially affect Ascogregarina barretti parasite burden, development and within-host competition in the mosquito Aedes triseriatus
Host food quality and quantity differentially affect Ascogregarina barretti parasite burden, development and within-host competition in the mosquito Aedes triseriatus
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宿主食物的质量和数量对三列伊蚊中的 Ascogregarina barretti 寄生虫负担、发育和宿主内竞争有不同的影响
DOI：
10.1017/s0031182019000994
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发表时间：
2019
期刊：
影响因子：
2.4
通讯作者：
K. Medley
中科院分区：
文献类型：
--
作者：
Katie M. Westby;B. Sweetman;Solny A. Adalsteinsson;Elizabeth G. Biro;K. Medley
摘要宿主条件在很大程度上取决于食物的质量和数量，并严重影响寄生虫感染的结果。虽然寄生虫健身性状，如生长速度和大小可能取决于主机的条件，无论是主机的食物质量或数量是更重要的寄生虫健身和内主机的相互作用知之甚少。我们为个体蚊子宿主提供标准剂量的gregarine寄生虫，并在两种不同质量和两种数量的食物类型上饲养蚊子。我们测量了主机大小，总寄生虫计数和面积，以及每个处理内寄生虫的平均大小。食物质量显着影响宿主中寄生虫的数量;喂食低质量饮食的宿主比提供高质量饮食的宿主感染更多的寄生虫。此外，我们发现了宿主内竞争的证据，寄生虫的大小和计数之间存在负相关关系，尽管这种关系取决于宿主的食物质量。宿主食物量显着影响总寄生虫面积和寄生虫大小;较低的食物量导致较小的寄生虫和减少的整体寄生虫面积内的主机。因此，食物的质量和数量都有可能影响寄生虫的适合度和种群动态。
Abstract Host condition depends in large part on the quality and quantity of available food and heavily influences the outcome of parasite infection. Although parasite fitness traits such as growth rate and size may depend on host condition, whether host food quality or quantity is more important to parasite fitness and within-host interactions is poorly understood. We provided individual mosquito hosts with a standard dose of a gregarine parasite and reared mosquitoes on two food types of different quality and two quantities. We measured host size, total parasite count and area, and average size of parasites within each treatment. Food quality significantly influenced the number of parasites in a host; hosts fed a low-quality diet were infected with more parasites than those provided a high-quality diet. In addition, we found evidence of within-host competition; there was a negative relationship between parasite size and count though this relationship was dependent on host food quality. Host food quantity significantly affected total parasite area and parasite size; lower food quantity resulted in smaller parasites and reduced overall parasite area inside the host. Thus both food quality and quantity have the potential to influence parasite fitness and population dynamics.
Ascogregarina barretti（Eugregarinida：Lecudinidae）感染对微观世界和轮胎中三列伊蚊（双翅目：蚊科）的羽化成功率、发育时间和大小的影响。
影响因子：
2.1
作者：
Walker,ED;Poirier,SJ;Veldman,WT
通讯作者：
Veldman,WT
北美白纹伊蚊中 Ascogregarina taiwanensis (Apicomplexa: Lecudinidae) 的首次记录。
影响因子：
1
作者：
Munstermann,LE;Wesson,DM
通讯作者：
Wesson,DM
水生微系统中碎屑类型的后果：对水质、微生物和主要消费者性能的影响。
影响因子：
2.7
作者：
Yee,DonaldA;Juliano,StevenA
通讯作者：
Juliano,StevenA