Intraspecific diversity alters the relationship between climate change and parasitism in a polymorphic ectotherm
Intraspecific diversity alters the relationship between climate change and parasitism in a polymorphic ectotherm
复制标题
种内多样性改变了多态变温动物中气候变化与寄生之间的关系
DOI：
10.1111/gcb.16018
复制
发表时间：
2021
影响因子：
11.6
通讯作者：
Clobert, Jean
中科院分区：
文献类型：
--
作者：
Wu, Qiang;Miles, Donald B.;Richard, Murielle;Rutschmann, Alexis;Clobert, Jean
气候调节寄生是由一系列因素驱动的，但这种关系的空间和时间变化在野生脊椎动物宿主中很少受到关注。此外，大多数先前的研究忽略了种内的差异，在主机的形态，这阻碍了充分了解气候寄生关系。在常见的蜥蜴（Zootoca vivipara）中，雌性蜥蜴有三种颜色变体：黄色（Y-雌性）、橙子（O-雌性）和混合色（黄色和橙子的混合色，M-雌性）。因此，我们使用这个模型系统来研究气候变化下寄主对寄生的种内反应。我们发现，在空间（10个站点）和时间（20年）尺度上，不同颜色变体的感染概率不同：在较低的温度下，M-雌性的寄生虫感染率低于Y-和O-雌性，但随着温度的升高，它们对寄生虫更敏感。M雌性在低温下的优势被此后较高的死亡率所抵消，这表明对寄生虫的抗性和宿主存活之间存在依赖于形态的权衡。此外，显着的颜色形态和温度之间的相互作用表明，寄生虫感染和气候变暖之间的关系是偶然的主机形态。对于大多数变体，寄生虫侵染随温度增加，但显示出变体特异性速率。最后，感染的M-女性比感染的Y-或O-女性有更高的存活率下降，这意味着随着寄生和温度上升，种群内种内多样性可能会丧失。总的来说，我们发现寄生随着温度的升高而增加，但这种关系受到宿主形态和与温度相互作用的调节。我们建议，流行病学模型纳入物种内的物种多样性，以更好地了解气候变暖下的野生动物疾病的动态。
Climate‐modulated parasitism is driven by a range of factors, yet the spatial and temporal variability of this relationship has received scant attention in wild vertebrate hosts. Moreover, most prior studies overlooked the intraspecific differences across host morphotypes, which impedes a full understanding of the climate–parasitism relationship. In the common lizard (Zootoca vivipara), females exhibit three colour morphs: yellow (Y‐females), orange (O‐females) and mixed (mixture of yellow and orange, M‐females).Zootoca viviparais also infested with an ectoparasite (Ophionyssusmites). We therefore used this model system to examine the intraspecific response of hosts to parasitism under climate change. We found infestation probability to differ across colour morphs at both spatial (10 sites) and temporal (20 years) scales: M‐females had lower parasite infestations than Y‐ and O‐females at lower temperatures, but became more susceptible to parasites as temperature increased. The advantage of M‐females at low temperatures was counterbalanced by their higher mortality rates thereafter, which suggests a morph‐dependent trade‐off between resistance to parasites and host survival. Furthermore, significant interactions between colour morphs and temperature indicate that the relationship between parasite infestations and climate warming was contingent on host morphotypes. Parasite infestations increased with temperature for most morphs, but displayed morph‐specific rates. Finally, infested M‐females had higher reductions in survival rates than infested Y‐ or O‐females, which implies a potential loss of intraspecific diversity within populations as parasitism and temperatures rise. Overall, we found parasitism increases with warming temperatures, but this relationship is modulated by host morphotypes and an interaction with temperature. We suggest that epidemiological models incorporate intraspecific diversity within species for better understanding the dynamics of wildlife diseases under climate warming.
登录
查看更多内容
DOI：
10.1098/rspb.2016.2407
发表时间：
2017-01-25
期刊：
Proceedings. Biological sciences
影响因子：
--
作者：
Willink B;Svensson EI
通讯作者：
Svensson EI
胎生蜥蜴雌性的颜色变化和替代繁殖策略
影响因子：
2.1
作者：
E. Vercken;M. Massot;B. Sinervo;J. Clobert
通讯作者：
J. Clobert
环境变化介导普通蜥蜴胎生动物寄生虫的流行和共存
影响因子：
--
作者：
Qiangsheng Wu;M. Richard;A. Rutschmann;D. Miles;J. Clobert
通讯作者：
J. Clobert
雌性普通蜥蜴的频率依赖性繁殖成功率：现实生活中的鹰-鸽子-恶霸游戏？
影响因子：
2.7
作者：
E. Vercken;J. Clobert;B. Sinervo
通讯作者：
B. Sinervo
影响因子：
8.8
作者：
Cohen, Jeremy M.;Venesky, Matthew D.;Rohr, Jason R.
通讯作者：
Rohr, Jason R.