Sponge density increases with depth throughout the Caribbean

Sponge density increases with depth throughout the Caribbean
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整个加勒比海的海绵密度随着深度的增加而增加

DOI:
10.1002/ecs2.2525
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发表时间:
2018
期刊:
影响因子:
2.7
通讯作者:
Slattery, Marc
Slattery, Marc
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Lesser, Michael P.;Slattery, Marc

文献摘要

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相似文献

中游珊瑚礁(MCEs)是珊瑚礁生态系统中独特的生态学组成部分,它们出现在约30到150米的深度,在那里它们支持着大量的深度特有物种。一个生态上重要的分类类群,特别是在加勒比海盆地,可以支配这些栖息地的是海绵类,它们出现在浅层(30米)到中层深度范围内。总体上,关于MCEs的研究越来越多,海绵已经成为其中许多研究的重点领域,因为它们表现出许多随着深度的增加而变化的生态和功能特征。在这里,我们使用历史和当代数据的分析来检验最近描述的“海绵随着深度增加”的假说。虽然这一假设最近在没有任何定量分析的情况下被拒绝,但我们表明,在加勒比海和太平洋的选定地点,海绵的密度或百分比在浅层到中层深度范围内增加。这种模式的直接原因似乎是营养资源的可用性增加,以及随着深度的增加而不同地使用这些资源的能力。海绵密度或覆盖率随深度的增加在本质上可能是全球性的,并导致中层深处以海绵为主的多样化和独特的群落。
Mesophotic coral reefs (MCEs) are ecologically unique components of coral reef ecosystems that occur at depths from ~30 to 150 m where they support a high number of depth‐endemic species. One ecologically important taxonomic group that can, especially in the Caribbean basin, dominate these habitats are sponges where they occur throughout the shallow (<30 m) to mesophotic depth range. There are an increasing number of studies on MCEs generally, and sponges have become a focal area for many of these studies as they exhibit a number of ecological and functional traits that vary with increasing depth. Here, we use an analysis of both historical and contemporary data to test the recently described “sponges increase with depth” hypothesis. While this hypothesis has recently been rejected without benefit of any quantitative analysis, we show that the density or percent cover of sponges increases over the shallow to mesophotic depth range for multiple reef sites in the Caribbean, and also in the Pacific at selected sites. The proximate cause for this pattern appears to be the increasing availability of trophic resources, and the ability to differentially use those resources, with increasing depth. The increase in sponge density or percent cover with depth is potentially global in nature and results in diverse, and unique, sponge‐dominated communities at mesophotic depths.
整个加勒比海的海绵密度随着深度的增加而增加:评论
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发表时间: 2019
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