期刊
GLOBAL CHANGE BIOLOGY
卷 24, 期 3, 页码 906-924出版社
WILEY
DOI: 10.1111/gcb.14007
关键词
alien; biodiversity-ecosystem functioning; biological diversity; decomposition; ecosystem engineers; invasive; nutrient flux; primary production; sedimentation; systematic review
资金
- EU Seventh Framework Programme for Research, Technological Development and Demonstration [FP7/2007-2013]
- UK Natural Environment Research Council
- Department for Environment, Food and Rural Affairs [NE/L003279/1]
- Estonian Ministry of Education and Research [SF0180005s10]
- Estonian Research Council [IUT02-20]
- NERC [pml010007, pml010003, pml010004, NE/L003279/1] Funding Source: UKRI
- Natural Environment Research Council [pml010007, pml010004, NE/L003279/1, pml010003, smru10001] Funding Source: researchfish
Invasive ecosystem engineers (IEE) are potentially one of the most influential types of biological invaders. They are expected to have extensive ecological impacts by altering the physical-chemical structure of ecosystems, thereby changing the rules of existence for a broad range of resident biota. To test the generality of this expectation, we used a global systematic review and meta-analysis to examine IEE effects on the abundance of individual species and communities, biodiversity (using several indices) and ecosystem functions, focusing on marine and estuarine environments. We found that IEE had a significant effect (positive and negative) in most studies testing impacts on individual species, but the overall (cumulative) effect size was small and negative. Many individual studies showed strong IEE effects on community abundance and diversity, but the direction of effects was variable, leading to statistically non-significant overall effects in most categories. In contrast, there was a strong overall effect on most ecosystem functions we examined. IEE negatively affected metabolic functions and primary production, but positively affected nutrient flux, sedimentation and decomposition. We use the results to develop a conceptual model by highlighting pathways whereby IEE impact communities and ecosystem functions, and identify several sources of research bias in the IEE-related invasion literature. Only a few of the studies simultaneously quantified IEE effects on community/diversity and ecosystem functions. Therefore, understanding how IEE may alter biodiversity-ecosystem function relationships should be a primary focus of future studies of invasion biology. Moreover, the clear effects of IEE on ecosystem functions detected in our study suggest that scientists and environmental managers ought to examine how the effects of IEE might be manifested in the services that marine ecosystems provide to humans.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据