Biogeographic patterns of communities across diverse marine ecosystems in southern California
Biogeographic patterns of communities across diverse marine ecosystems in southern California
复制标题
DOI：
10.1111/maec.12453
复制
发表时间：
2018-05-01
影响因子：
1.1
通讯作者：
Caselle, Jennifer E.
中科院分区：
文献类型：
--
作者：
Claisse, Jeremy T.;Blanchette, Carol A.;Caselle, Jennifer E.
综合在不同海洋生态系统中进行的监测工作的结果，提供了在更大的空间范围内和在多个分类群体中揭示新的生物地理模式的机会。我们研究了南加州一系列海洋生态系统(岩石潮间带、沙质潮间带、海藻森林、浅水和深层软底亚潮下)的主要分类类群(无脊椎动物、鱼类或藻类)之间的大规模群落相似性模式。由于不同项目的监测地点和方法各不相同，为了便于比较，现场数据在更大的地理区域内进行了平均。对于大多数个体社区类型，地理上彼此接近或环境相似的位置往往具有更相似的社区。然而，我们的分析发现，这种社区内类型相似性的模式并不会导致所有这些社区类型对都表现出高水平的跨社区一致性。岩石潮间带藻类群落与观察到的几乎所有其他(鱼类或无脊椎动物)群落类型的空间格局高度一致。这并不令人惊讶，因为众所周知，藻类的分布受到自下而上因素的高度影响，它们作为海洋鱼类和无脊椎动物的食物和栖息地很重要。然而，对鱼类群落和无脊椎动物群落之间的空间格局进行相对较少的成对比较产生了显著的相关性。这些群落类型通常由营养级别较高的物种组成，额外的生态和人为因素可能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，尽管也有一些明显的例外。这些发现对设计和解释长期监测方案的结果具有重要意义。
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.