Benthic assemblages associated with native and non-native oysters are similar

被引：27
作者：
Zwerschke, Nadescha [1 ]
Emmerson, Mark C. [1 ,2 ]
Roberts, Dai [1 ,2 ]
O'Connor, Nessa E. [1 ,2 ]
机构：
[1] Queens Univ Belfast, Marine Lab, 12-13 Strand, Portaferry BT22 1PF, North Ireland
[2] Queens Univ Belfast, Sch Biol Sci, Belfast BT9 7BL, Antrim, North Ireland
来源：
MARINE POLLUTION BULLETIN | 2016年 / 111卷 / 1-2期
关键词：
Crassostrea gigas; Ostrea edulis; Biodiversity; Functional similarity; Invasive species; INTRODUCED PACIFIC OYSTERS; SPATIAL-DISTRIBUTION; MYTILUS-EDULIS; OSTREA-EDULIS; WADDEN SEA; ECOSYSTEM; RESTORATION; MUSSELS; REEFS; STOCK;
D O I：
10.1016/j.marpolbul.2016.06.094
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Invasive species can impact native species and alter assemblage structure, which affects associated ecosystem functioning. The pervasive Pacific oyster, Crassostrea gigas, has been shown to affect the diversity and composition of many host ecosystems. We tested for effects of the presence of the invasive C. gigas on native assemblages by comparing them directly to assemblages associated with the declining native European oyster, Ostrea edulis. The presence of both oyster species was manipulated in intertidal and subtidal habitats and reefs were constructed at horizontal and vertical orientation to the substratum. After 12 months, species diversity and benthic assemblage structure between assemblages with C gigas and O. edulis were similar, but differed between habitats and orientation, suggesting that both oyster species were functionally similar in terms of biodiversity facilitation. These findings support evidence, that non-native species could play an important role in maintaining biodiversity in systems with declining populations of native species. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：305 / 310
页数：6
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