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Temporal dynamics of species associations in the parasite community of European eels, Anguilla anguilla, from a coastal lagoon.
International Journal for Parasitology: Parasites and Wildlife ( IF 1.8 ) Pub Date : 2020-05-07 , DOI: 10.1016/j.ijppaw.2020.05.001
Luisa Giari 1 , Brandon Ruehle 2 , Elisa Anna Fano 1 , Giuseppe Castaldelli 1 , Robert Poulin 2
Affiliation  

The resilience of biological communities is of central importance in ecology, but is difficult to investigate in nature. Parasite communities in individual hosts provide good model systems, as they allow a level of replication usually not possible with free-living communities. Here, using temporal data (2005-2017) on the communities of endohelminth parasites in European eels, Anguilla anguilla, from brackish-water lagoons in Italy, we test the resilience of interspecific associations to changes in the abundance of some parasite species and the disappearance of others. While most parasite species displayed changes in abundance over time, three trematodes that were present in the early years, two of which at high abundance, completely disappeared from the parasite community by the end of the study period. Possibly other host species required for the completion of their life cycles have declined in abundance, perhaps due to environmental changes. However, despite these marked changes to the overall community, pairwise correlations in abundance among the three most common parasite species (all trematodes) were stable over time and remained mostly unaffected by what happened to other species. We explore possible reasons for these resilient species associations within a temporally unstable parasite community inhabiting a mostly stable host population.

中文翻译:

欧洲鳗,来自沿海泻湖的鳗的寄生虫群落中物种协会的时间动态。

生物群落的复原力在生态学中至关重要,但在自然界很难进行研究。个体宿主中的寄生虫社区提供了良好的模型系统,因为它们允许一定水平的复制,而这些复制通常是自由社区无法实现的。在这里,我们使用来自意大利咸淡水泻湖的欧洲鳗,鳗的寄生虫群落的时间数据(2005-2017年),测试了种间关联对某些寄生虫物种的丰度变化和消失的复原力别人的。虽然大多数寄生虫物种随时间显示丰度变化,但在研究初期,出现了三个吸虫,其中两个丰度很高,到研究结束时已完全从寄生虫群落中消失。可能由于环境变化,完成其生命周期所需的其他寄主物种数量大量减少。然而,尽管整体群落发生了显着变化,但三种最常见的寄生虫物种(所有吸虫)之间的丰度成对相关性随时间推移一直稳定,并且大多数情况下不受其他物种的影响。我们探索居住在一个稳定的寄主种群的暂时不稳定的寄生虫社区内这些弹性物种协会的可能原因。三种最常见的寄生虫物种(所有吸虫)之间的丰度成对相关性随时间推移是稳定的,并且大多数情况下不受其他物种发生的影响的影响。我们探索居住在一个主要稳定宿主种群的暂时不稳定的寄生虫群落中这些弹性物种关联的可能原因。三种最常见的寄生虫物种(所有吸虫)之间的丰度成对相关性随时间推移是稳定的,并且大多数情况下不受其他物种发生的影响的影响。我们探索居住在一个主要稳定宿主种群的暂时不稳定的寄生虫群落中这些弹性物种关联的可能原因。
更新日期:2020-05-07
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