sympatric

简明释义

英[sɪmˈpætrɪk]美[sɪmˈpætrɪk]

adj. [生态] 同域的，在同一地区生存的；（生态）[生态] 分布区重叠的

英英释义

单词用法

同义词

反义词

例句

1.Plant secondary substances determine diet breadth to a great extent. They play a significant role in speciation, especially the sympatric speciation.

植物次生物质对叶甲的寄主范围起到决定性作用，在物种形成特别是同域物种形成过程中起到十分重要的作用。

2.This finding indicated that WBPH resistance genes were retained in sympatric japonica landraces in China.

这些发现表明抗白背飞虱基因在中国存在于同一生态区的粳稻地方品种中。

3.In sympatric speciation, species diverge while inhabiting the same place.

在同域物种形成中，居住在同一个地方的物种分歧化。

4.Plant secondary substances determine diet breadth to a great extent. They play a significant role in speciation, especially the sympatric speciation.

植物次生物质对叶甲的寄主范围起到决定性作用，在物种形成特别是同域物种形成过程中起到十分重要的作用。

5.Reinforcement is required for both parapatric and sympatric speciation.

对于领域性的和同域性的物种形成，强化是必需的。

6.Often cited examples of sympatric speciation are found in insects which become dependent on different host plants in the same area.

经常提到的同域物种形成实例，是在同一地区的、依赖于不同寄主植物的昆虫中发现的。

7.Some plants can be sympatric 同域的 yet still maintain distinct morphological traits.

一些植物可以是sympatric 同域的，但仍然保持独特的形态特征。

8.The concept of sympatric 同域的 speciation challenges traditional views of how new species arise.

关于sympatric 同域的 物种形成的概念挑战了传统的新物种产生观点。

9.Researchers found that the sympatric 同域的 populations of cichlid fish exhibit different feeding strategies.

研究人员发现，非洲慈鲷的sympatric 同域的 种群展现出不同的觅食策略。

10.In this region, the sympatric 同域的 speciation of birds has led to a fascinating diversity of calls.

在这个地区，鸟类的sympatric 同域的 物种形成导致了有趣的鸣叫多样性。

11.The two species of frogs are considered sympatric 同域的 because they inhabit the same wetlands without interbreeding.

这两种青蛙被认为是sympatric 同域的，因为它们生活在同一片湿地中而没有交配。

作文

In the fascinating world of biology, the concept of sympatric speciation plays a crucial role in understanding how new species arise. Sympatric speciation occurs when populations of a species evolve into distinct species while inhabiting the same geographic area. This process contrasts with allopatric speciation, where populations are separated by physical barriers, such as mountains or rivers. The study of sympatric speciation reveals the complexity of evolutionary processes and highlights the importance of ecological factors in driving diversification.One of the most compelling examples of sympatric speciation can be observed in cichlid fish found in African lakes. These fish exhibit an astonishing variety of forms and behaviors, all existing within the same body of water. Researchers believe that these different species evolved through sympatric mechanisms, such as sexual selection and resource partitioning. For instance, some cichlids may prefer to feed on specific types of algae or insects, which reduces competition among them. Over time, these feeding preferences can lead to reproductive isolation, where individuals choose mates based on similar feeding habits, ultimately resulting in the emergence of new species.Another significant aspect of sympatric speciation is its reliance on genetic variation within a population. In many cases, mutations or chromosomal changes can create individuals with distinct traits that allow them to exploit different ecological niches. This phenomenon can lead to divergent evolution, where two groups within the same population adapt to their specific environments, further reinforcing reproductive isolation. An example of this can be seen in the apple maggot fly, which has diverged into two separate species: one that feeds on hawthorn fruit and another that prefers apples. Despite living in the same geographic area, these flies have developed distinct preferences that prevent interbreeding, illustrating the principles of sympatric speciation.The implications of sympatric speciation extend beyond individual species; they also influence biodiversity and ecosystem dynamics. When new species emerge through sympatric mechanisms, they contribute to the richness of an ecosystem. This increased diversity can enhance resilience against environmental changes, as a broader range of species can fulfill various ecological roles. Furthermore, understanding sympatric speciation can inform conservation efforts, as it emphasizes the need to preserve not only individual species but also the complex interactions within ecosystems that foster diversity.In conclusion, the concept of sympatric speciation is a vital component of evolutionary biology that illustrates how species can emerge and diversify within the same geographic area. Through examples such as cichlid fish and apple maggot flies, we see the intricate processes that drive speciation and the importance of ecological factors in shaping biodiversity. As we continue to study these phenomena, we gain deeper insights into the mechanisms of evolution and the vital role that sympatric speciation plays in the natural world.

在生物学的迷人世界中，同域物种形成的概念在理解新物种如何产生方面发挥着至关重要的作用。同域物种形成发生在一个物种的种群在同一地理区域内演化成不同的物种。这一过程与异域物种形成相对立，后者是指种群被物理障碍（如山脉或河流）分隔开。对同域物种形成的研究揭示了进化过程的复杂性，并强调了生态因素在推动多样化中的重要性。一个引人注目的同域物种形成的例子可以在非洲湖泊中的慈鲷鱼中观察到。这些鱼展现出令人惊叹的多样性和行为，所有这些都存在于同一水体中。研究人员认为，这些不同的物种通过同域机制演化而来，例如性选择和资源分配。例如，一些慈鲷可能更喜欢以特定类型的藻类或昆虫为食，从而减少它们之间的竞争。随着时间的推移，这些觅食偏好可能导致生殖隔离，其中个体根据相似的觅食习惯选择伴侣，最终导致新物种的出现。同域物种形成的另一个重要方面是其对种群内部遗传变异的依赖。在许多情况下，突变或染色体变化可以创造出具有不同特征的个体，使它们能够利用不同的生态位。这种现象可能导致发散进化，即同一群体中的两个群体适应各自的环境，从而进一步加强生殖隔离。这种现象的一个例子可以在苹果蛆蝇中看到，它已经分化为两个独立的物种：一种以山楂果为食，另一种则偏好苹果。尽管生活在同一地理区域，这些苍蝇已经发展出不同的偏好，防止了异交，说明了同域物种形成的原理。同域物种形成的影响超越了个别物种；它们还影响生物多样性和生态系统动态。当新的物种通过同域机制出现时，它们有助于生态系统的丰富性。这种增加的多样性可以增强对环境变化的抵御力，因为更广泛的物种范围可以履行各种生态角色。此外，理解同域物种形成可以为保护工作提供信息，因为它强调了保护不仅仅是单个物种的需要，还包括促进多样性的生态系统内部复杂相互作用的必要性。总之，同域物种形成的概念是进化生物学的一个重要组成部分，说明了物种如何在同一地理区域内出现和多样化。通过慈鲷鱼和苹果蛆蝇等例子，我们看到了驱动物种形成的复杂过程以及生态因素在塑造生物多样性中的重要性。随着我们继续研究这些现象，我们将深入了解进化机制以及同域物种形成在自然界中所发挥的重要作用。