Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), Rua Arcturus, 03 - Jardim Antares, 09606-070 São Bernardo do Campo, SP, Brazil.
Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, R. Matão, Trav. 14, 05508-090 São Paulo, SP, Brazil.
Mar Pollut Bull. 2019 Sep;146:884-892. doi: 10.1016/j.marpolbul.2019.07.013. Epub 2019 Jul 26.
Human occupation of coastal areas promotes the establishment of non-native species but information on bioinvasions is usually biased toward the Northern Hemisphere. We assessed non-native species' importance in sessile communities at six marinas along the most urbanized area of the Southwestern Atlantic coastline. We found 67 species, of which 19 are exotic. The most frequent species was the exotic polychaete Branchiomma luctuosum, while the most abundant was the exotic bryozoan Schizoporella errata that monopolized the substrata in three marinas. Along with S. errata, the exotic polychaete Hydroides elegans and ascidian Styela plicata dominated space in the three remaining marinas, while native species were in general rare. We show that communities associated with artificial substrata along this Brazilian urbanized area are dominated by exotic species and that using abundance data along with species identity can improve our understanding of the importance of exotic species for the dynamics of biological communities.
人类对沿海地区的占据促进了非本地物种的建立，但有关生物入侵的信息通常偏向于北半球。我们评估了西南大西洋海岸线最城市化地区的六个码头中固着群落中非本地物种的重要性。我们发现了 67 种物种，其中 19 种是外来种。最常见的物种是外来多毛类动物 Branchiomma luctuosum，而最丰富的是外来苔藓动物 Schizoporella errata，它在三个码头的基质上占据了主导地位。与 S. errata 一起，外来多毛类动物 Hydroides elegans 和海鞘 Styela plicata 在其余三个码头中占据了空间主导地位，而本地物种通常很少。我们表明，与巴西这个城市化地区人工基质相关的群落主要由外来物种组成，并且使用丰度数据以及物种身份可以提高我们对外来物种对生物群落动态重要性的理解。
