polyphagy

简明释义

英[/ˌpɒlɪˈfædʒi/]美[/ˌpɒlɪˈfædʒi/]

n. 多食症；贪欲；杂食性（等于 polyphagia）

英英释义

单词用法

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例句

1.The infancy larva had the characteristics of the polyphagy and some endurance with starvation, dry, waterlogging and cold.

初孵幼虫具有多食性和一定的耐饥性、耐旱性、耐涝性、耐寒性。

2.The infancy larva had the characteristics of the polyphagy and some endurance with starvation, dry, waterlogging and cold.

初孵幼虫具有多食性和一定的耐饥性、耐旱性、耐涝性、耐寒性。

3.Researchers found that the polyphagy of certain insects allows them to thrive in diverse habitats.

研究人员发现，某些昆虫的多食性使它们能够在多样化的栖息地中繁衍生息。

4.The concept of polyphagy is essential for understanding food webs and ecosystem dynamics.

理解食物网和生态系统动态时，多食性的概念至关重要。

5.In ecology, polyphagy can play a crucial role in the survival of certain animals by allowing them to adapt to changing food sources.

在生态学中，多食性可以在某些动物的生存中发挥关键作用，使它们能够适应变化的食物来源。

6.The study of the feeding habits of various species revealed that some exhibit polyphagy, meaning they consume a wide variety of foods.

对各种物种进食习惯的研究表明，有些物种表现出多食性，意味着它们摄取多种食物。

7.The omnivorous diet of bears is a classic example of polyphagy, as they eat fruits, fish, and small mammals.

熊的杂食性饮食是多食性的经典例子，因为它们吃水果、鱼和小型哺乳动物。

作文

Polyphagy, defined as the ability of an organism to consume a wide variety of foods, plays a significant role in the survival and adaptability of many species. This term is particularly relevant in the study of ecology and animal behavior. Organisms that exhibit polyphagy (多食性) can thrive in diverse environments because they are not limited to a specific diet. For example, many mammals, birds, and insects are known for their polyphagy (多食性), allowing them to exploit various food sources depending on availability and seasonal changes.One of the most striking examples of polyphagy (多食性) can be seen in raccoons. These creatures are notorious for their opportunistic feeding habits, which include fruits, insects, small animals, and human food scraps. Their ability to adapt their diet based on the environment has allowed them to flourish in urban settings, where they often scavenge for leftovers. This adaptability is a direct result of their polyphagy (多食性), showcasing how dietary flexibility can lead to success in changing habitats.In contrast, organisms with a specialized diet, known as oligophagous species, often face greater risks when their preferred food source becomes scarce. For instance, the giant panda primarily feeds on bamboo. While this specialization allows pandas to thrive in bamboo-rich areas, it also makes them vulnerable to habitat loss and climate change, as their survival is tightly linked to the availability of this single food source. This stark difference highlights the evolutionary advantages of polyphagy (多食性).Moreover, polyphagy (多食性) is not just limited to animals; it can also be observed in plants. Certain plant species have evolved to produce a variety of fruits or seeds, attracting different types of pollinators or seed dispersers. This strategy increases their chances of reproduction and survival in varied environments. The ability to adapt and utilize multiple resources is a key factor in the resilience of these species.In the context of agriculture, understanding polyphagy (多食性) can be crucial for pest management. Many agricultural pests are polyphagous, meaning they can feed on multiple crops. This trait poses challenges for farmers, as controlling these pests requires a more comprehensive approach than targeting a single species. Integrated pest management strategies must consider the polyphagy (多食性) of pests to minimize crop damage effectively.In conclusion, polyphagy (多食性) is a vital concept in understanding the dynamics of ecosystems and the survival strategies of various organisms. It enables species to exploit a range of food sources, enhancing their adaptability and resilience in changing environments. As we continue to study the intricate relationships between organisms and their diets, the significance of polyphagy (多食性) will undoubtedly remain a focal point in ecological research and conservation efforts.