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首页> 外文期刊>Marine ecology progress series >Comparative analysis of foraging behavior and bite mechanics reveals complex functional diversity among Caribbean parrotfishes
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Comparative analysis of foraging behavior and bite mechanics reveals complex functional diversity among Caribbean parrotfishes

机译：觅食行为和叮咬机制的比较分析显示加勒比鹦鹉鱼之间复杂的功能多样性。

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Parrotfishes are a diverse group of herbivores that can influence benthic community dynamics and ecosystem function on coral reefs. Different species and size classes of parrotfishes vary in their feeding ecology and can impact reef ecosystems in distinct ways. We documented differences in the feeding ecology of 9 species of parrotfishes in the Florida Keys National Marine Sanctuary (FKNMS). Many of the key differences can be summarized by assigning species to functional groups (e.g. scrapers, excavators, croppers, macroalgae browsers), which are differentially responsible for carrying out specific ecological processes. For example, we found that Sparisoma viride, Scarus coelestinus, Sc. guacamaia, Sc. taeniopterus, and Sc. vetula feed on short turfs with few sediments, while Sp. aurofrenatum, Sp. chrysopterum, and Sp. rubripinne feed on longer sediment-laden turfs in addition to macroalgae. Further, parrotfishes use distinct bite types that indicate contrasting impacts on the benthos. Species that feed on short turfs scrape and excavate epilithic and endolithic algae, while species that feed on longer turfs and macroalgae tend to tear or crop algae from the reef. These distinct feeding behaviors result in different rates of algae removal, carbonate erosion, and sediment production. Recognizing that different species of parrotfishes interact with the benthos in fundamentally different ways will enable scientists and managers to better predict how changes in the structure of parrotfish assemblages may affect benthic communities and ecosystem processes.
机译：鹦嘴鱼是各种各样的草食动物，它们可以影响底栖生物群落的动态和珊瑚礁的生态系统功能。不同种类和大小类别的鹦嘴鱼的摄食生态学有所不同，并可能以不同的方式影响礁石生态系统。我们记录了佛罗里达礁岛国家海洋保护区（FKNMS）中9种鹦嘴鱼的摄食生态学差异。通过将物种分配给功能组（例如刮板，挖掘机，农作物，大型藻类浏览器），可以总结出许多关键差异，这些功能组负责执行特定的生态过程。例如，我们发现了Sparisoma viride，Scarus coelestinus，Sc。瓜卡马尼亚岛taeniopterus和Sc。 vetula以短草皮为食，几乎没有沉积物，而Sp。极光ch，和Sp。除大型藻类外，红rip碱还以长泥沙的草皮为食。此外，鹦嘴鱼使用不同的咬合类型，表明对底栖动物的影响不同。以短草皮为食的物种会刮擦并挖掘上层和内层藻类，而以长草皮和大型藻类为食的物种则倾向于从礁石上撕裂或种植藻类。这些不同的进食行为导致藻类去除率，碳酸盐侵蚀和沉积物生成率不同。认识到不同种类的鹦嘴鱼与底栖动物相互作用的方式根本不同，这将使科学家和管理人员能够更好地预测鹦嘴鱼组合结构的变化如何影响底栖生物群落和生态系统过程。

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