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首页> 外文期刊>Polar biology >Effects Of Hookworms (uncinaria Sp.) On The Early Growth And Survival Of New Zealand Sea Lion (phocarctos Hookeri) Pups
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Effects Of Hookworms (uncinaria Sp.) On The Early Growth And Survival Of New Zealand Sea Lion (phocarctos Hookeri) Pups

机译：钩虫（uncinaria Sp。）对新西兰海狮（phocarctos Hookeri）幼仔的早期生长和存活的影响

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摘要

Parasites can have both direct and indirect impacts on organisms through changes in health, growth, reproductive success, behaviour and survival. This research investigates the effects of hookworms (Uncinaria sp.) on the growth and mortality of New Zealand sea lion (NZ sea lion, Phocarctos hookeri) pups between birth and 3 months of age. NZ sea lion pups that received ivermectin treatment to reduce their hookworm burden had higher growth rates. Hookworm infection had no significant effect on mortality rate except when overall mortality was high during epidemics caused by other pathogens. Understanding the impacts of parasites on wild populations of pinnipeds is important for the management of the species, particularly when the species is threatened, as is the case for the NZ sea lion. There are at least two reasons for this: first, to quantify the impact of the parasite on parameters of population dynamics such as offspring survival and, as a consequence, female reproductive output; and second, to gain sufficient knowledge of the host/parasite dynamics to allow the balance to be manipulated in favour of the host should this be required for conservation management.
机译：寄生虫可通过健康，生长，生殖成功，行为和生存的变化对生物产生直接或间接的影响。这项研究调查了钩虫（Uncinaria sp。）对出生至3个月大的新西兰海狮（NZ sea Lion，Phocarctos hookeri）幼崽的生长和死亡率的影响。接受伊维菌素治疗以减轻钩虫负担的新西兰海狮幼崽的生长速度更高。钩虫感染对死亡率没有显着影响，除非在其他病原体引起的流行期间总体死亡率很高。理解寄生虫对pin鱼野生种群的影响对于物种的管理非常重要，尤其是在物种受到威胁的情况下，例如新西兰海狮。至少有两个原因：首先，量化寄生虫对种群动态参数的影响，例如后代存活率，以及由此产生的女性生殖输出；其次，要获得足够的宿主/寄生虫动态知识，以便在养护管理中需要对平衡有利于宿主的情况下进行操纵。

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