altricial bird

简明释义

留巢鸟

英英释义

例句

1.The mother bird brought insects to the altricial birds in the nest, ensuring they received enough protein.

母鸟给巢里的依赖性鸟类带来了昆虫，确保它们摄入足够的蛋白质。

2.As the altricial birds grew, they began to develop feathers and started to flap their wings.

随着依赖性鸟类的成长，它们开始长出羽毛，并试着拍打翅膀。

3.The survival rate of altricial birds is heavily dependent on the care provided by their parents.

由于父母的照顾，依赖性鸟类的存活率受到极大影响。

4.Unlike altricial birds, precocial birds are able to walk and feed themselves shortly after hatching.

与依赖性鸟类不同，先孵化的鸟类在孵化后不久就能走动并自我觅食。

5.The nest was filled with chirping altricial birds, which rely on their parents for food and warmth.

巢里充满了鸣叫的依赖性鸟类，它们依靠父母提供食物和温暖。

作文

Birds are fascinating creatures that exhibit a wide range of reproductive strategies. Among these strategies, the classification of birds into two main categories—altricial and precocial—provides insight into their developmental processes. An altricial bird is defined as a type of bird that hatches in a relatively undeveloped state, requiring significant parental care for survival. This term comes from the Latin word 'altrix', meaning 'nurturing'. Unlike their precocial counterparts, which are born fully feathered and capable of moving around shortly after hatching, altricial birds are born blind, naked, and helpless, relying heavily on their parents for food and protection.The majority of songbirds, raptors, and many other bird species fall into the category of altricial birds. These birds typically lay a larger number of eggs in a single clutch, which allows them to increase the chances of some offspring surviving despite the high demands of parental care. For instance, a common example of an altricial bird is the American Robin. After laying eggs, the female robin incubates them for about two weeks before they hatch. The chicks are born completely helpless and require constant feeding from their parents until they develop enough feathers and strength to fledge, or leave the nest.The parental investment in altricial birds often extends beyond just feeding. Parents may also engage in behaviors such as brooding, where they keep the chicks warm, and protecting them from predators. This nurturing behavior is crucial for the survival of the young, as their vulnerability makes them easy targets for various threats in their environment. As the chicks grow, they begin to develop their physical abilities and cognitive skills, eventually preparing to leave the nest and become independent.In contrast, precocial birds, such as ducks and chickens, have a different approach to their early life stages. These birds are born with their eyes open, covered in down feathers, and are able to walk and swim shortly after hatching. This allows them to quickly adapt to their surroundings and reduce the risk of predation. The differences between altricial and precocial birds highlight the diverse strategies that birds have evolved to ensure the survival of their species.Understanding the characteristics and behaviors of altricial birds can provide valuable insights into avian biology and ecology. It emphasizes the importance of parental care in the early stages of development and how it shapes the life cycle of these birds. Moreover, studying altricial birds can help researchers assess the health of bird populations and the impacts of environmental changes on their breeding success.In conclusion, the classification of birds into altricial and precocial categories reveals the complexities of avian reproduction and development. The altricial bird strategy, characterized by high parental investment and dependent young, showcases the intricate balance of nurturing and survival in the avian world. Through continued research and observation, we can further appreciate the remarkable adaptations of these birds and their vital role in our ecosystems.

鸟类是迷人的生物，展示了广泛的繁殖策略。在这些策略中，将鸟类分为两大类——未成熟鸟类和成熟鸟类，为其发育过程提供了洞见。未成熟鸟类被定义为一种在相对不发达状态下孵化的鸟类，需要显著的父母照顾才能生存。这个术语源于拉丁词“altrix”，意为“养育者”。与那些在孵化后全身羽毛丰满并能迅速活动的成熟鸟类不同，未成熟鸟类出生时是盲目的、赤裸的、无助的，严重依赖父母提供食物和保护。大多数鸣禽、猛禽及许多其他鸟类都属于未成熟鸟类。这些鸟通常在一个窝中产下较多的卵，这使它们能够增加一些幼鸟存活的机会，尽管对父母照顾的需求很高。例如，美国知更鸟就是一个常见的未成熟鸟类例子。母知更鸟在产卵后孵化约两周，幼鸟孵化时完全无助，需要父母不断喂养，直到它们长出足够的羽毛和力量离巢。对未成熟鸟类的父母投资通常不仅仅限于喂养。父母还可能参与诸如保温的行为，即保持幼鸟温暖，并保护它们免受捕食者的侵害。这种养育行为对幼鸟的生存至关重要，因为它们的脆弱性使它们容易成为环境中各种威胁的目标。随着幼鸟的成长，它们开始发展身体能力和认知技能，最终准备离巢独立生活。相比之下，成熟鸟类，如鸭子和鸡，有着不同的早期生活阶段的方法。这些鸟出生时眼睛睁开，覆盖着绒毛，能够在孵化后不久走路和游泳。这使它们能够迅速适应环境，减少被捕食的风险。未成熟鸟类和成熟鸟类之间的差异突显了鸟类为确保物种生存而进化出的多样策略。理解未成熟鸟类的特征和行为可以为鸟类生物学和生态学提供宝贵的见解。它强调了在早期发育阶段父母照顾的重要性，以及这种照顾如何塑造这些鸟的生命周期。此外，研究未成熟鸟类可以帮助研究人员评估鸟类种群的健康状况以及环境变化对其繁殖成功的影响。总之，将鸟类分类为未成熟和成熟鸟类揭示了鸟类繁殖和发育的复杂性。未成熟鸟类策略的特点是高父母投资和依赖幼鸟，展示了鸟类世界中养育与生存的微妙平衡。通过持续的研究和观察，我们可以进一步欣赏这些鸟类的卓越适应能力及其在生态系统中的重要角色。