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首页> 外文期刊>Marine ecology >Biogeographic patterns of communities across diverse marine ecosystems in southern California
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Biogeographic patterns of communities across diverse marine ecosystems in southern California

机译：加利福尼亚南部不同海洋生态系统中社区的生物地理格局

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Integrating results from monitoring efforts conducted across diverse marine ecosystems provides opportunities to reveal novel biogeographic patterns at larger spatial scales and among multiple taxonomic groups. We investigated large-scale patterns of community similarity across major taxonomic groups (invertebrates, fishes or algae) from a range of marine ecosystems (rocky intertidal, sandy intertidal, kelp forest, shallow and deep soft-bottom subtidal) in southern California. Because monitoring sites and methods varied among programs, site data were averaged over larger geographic regions to facilitate comparisons. For the majority of individual community types, locations that were geographically near or environmentally similar to one another tended to have more similar communities. However, our analysis found that this pattern of within community type similarity did not result in all pairs of these community types exhibiting high levels of cross-community congruence. Rocky intertidal algae communities had high levels of congruence with the spatial patterns observed for almost all of the other (fish or invertebrate) community types. This was not surprising given algal distributions are known to be highly influenced by bottom-up factors and they are important as food and habitat for marine fishes and invertebrates. However, relatively few pairwise comparisons of the spatial patterns between a fish community and an invertebrate community yielded significant correlations. These community types are generally comprised of assemblages of higher trophic level species, and additional ecological and anthropogenic factors may have altered their spatial patterns of community similarity. In most cases pairs of invertebrate community types and pairs of fish community types exhibited similar spatial patterns, although there were some notable exceptions. These findings have important implications for the design and interpretation of results of long-term monitoring programs.
机译：对跨不同海洋生态系统进行的监测工作的结果进行整合，提供了在更大的空间尺度上和多个生物分类群之间揭示新颖的生物地理模式的机会。我们调查了南加州一系列海洋生态系统（岩石潮间带，沙质潮间带，沙质潮间带，海带森林，浅层和深层软底下层潮汐）中主要生物分类群（无脊椎动物，鱼类或藻类）的大规模社区相似性模式。由于监视站点和监视程序的方法各不相同，因此在较大的地理区域内对站点数据进行平均以方便进行比较。对于大多数单个社区类型，地理位置在地理位置上彼此接近或在环境上彼此相似的社区往往具有更多相似的社区。但是，我们的分析发现，社区类型内相似性的这种模式并没有导致这些社区类型中的所有对都表现出高水平的跨社区一致性。潮间带岩石藻类群落与几乎所有其他（鱼类或无脊椎动物）群落类型所观察到的空间格局高度一致。鉴于已知藻类分布受自下而上因素的高度影响，并且藻类作为海鱼和无脊椎动物的食物和栖息地非常重要，因此这并不奇怪。然而，在鱼类群落和无脊椎动物群落之间空间格局的成对比较中，只有极少数相关。这些群落类型通常由较高营养级别的物种组成，并且其他生态和人为因素可能已经改变了它们群落相似性的空间格局。在大多数情况下，成对的无脊椎动物群落类型和成对的鱼类群落类型表现出相似的空间格局，尽管有一些显着的例外。这些发现对长期监测计划结果的设计和解释具有重要意义。

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