我们吃什么,我们就吃什么:猎物饮食对次级消费者的生长、发育、行为和生存的影响

IF 2.2 3区 生物学 Q1 MARINE & FRESHWATER BIOLOGY
Francisco Javier Zamora-Camacho
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引用次数: 0

摘要

次级消费者通过猎物满足其营养需求,并受到猎物食物资源的限制。这一点在不能被遗弃的生态系统(如小水体)中尤为重要。在这项工作中,我研究了乌贼幼虫的生长、发育和行为如何受到猎物食物的影响。我在人工饲养条件下饲养蝾螈幼虫,给它们喂食以植物为食(植物处理)、以肉类为食(动物处理)或混合为食(混合处理)的蚊子幼虫。我测量了大鲵幼体和变态体的体型、运动性能、飞行起始距离、幼体摄食率以及变态前的时间和存活率。植物处理显示体型缩小、觅食率降低和存活率降低。运动性能、飞行起始距离和变态时间不受处理的影响。这些结果突显了猎物饮食对次级消费者的影响。因此,特定个体的成功可能取决于其生态系统的生产力或外源物质的收入。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

We are what what we eat eats: the effects of prey diet on growth, development, behavior and survival of a secondary consumer

We are what what we eat eats: the effects of prey diet on growth, development, behavior and survival of a secondary consumer

Secondary consumers meet their nutritional needs via their prey and are limited by the dietary resources available for their prey. This is especially relevant in ecosystems which cannot be abandoned, such as in small water bodies. In this work, I studied how urodele larval growth, development and behavior are affected by the diet of their prey. I reared Salamandra salamandra larvae in captivity, feeding them mosquito larvae fed either a plant-based (vegetal treatment) diet, a meat-based (animal treatment) diet or a combined diet (mixed treatment). I measured body size of salamander larvae and metamorphs, locomotor performance, flight initiation distance, and feeding rates of larvae, and time and survival until metamorphosis. The vegetal treatment showed reduced body size, lower foraging rates, and lower survival. Locomotor performance, flight initiation distance, and time to metamorphosis were not affected by treatment. These results highlight how prey diet affects secondary consumers. Thus, the success of a given individual can depend on the productivity of its ecosystem or the income of exogen matter.

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来源期刊
Hydrobiologia
Hydrobiologia 生物-海洋与淡水生物学
CiteScore
5.40
自引率
11.50%
发文量
288
审稿时长
4.9 months
期刊介绍: Hydrobiologia publishes original research, reviews and opinions regarding the biology of all aquatic environments, including the impact of human activities. We welcome molecular-, organism-, community- and ecosystem-level studies in contributions dealing with limnology and oceanography, including systematics and aquatic ecology. Hypothesis-driven experimental research is preferred, but also theoretical papers or articles with large descriptive content will be considered, provided they are made relevant to a broad hydrobiological audience. Applied aspects will be considered if firmly embedded in an ecological context.
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